diff --git a/daemons/fenced/pacemaker-fenced.c b/daemons/fenced/pacemaker-fenced.c
index fc632befe4..3134963298 100644
--- a/daemons/fenced/pacemaker-fenced.c
+++ b/daemons/fenced/pacemaker-fenced.c
@@ -1,1758 +1,1758 @@
/*
* Copyright 2009-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <sys/utsname.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <inttypes.h> // PRIu32, PRIx32
#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/cmdline_internal.h>
#include <crm/common/ipc.h>
#include <crm/common/ipc_internal.h>
#include <crm/common/output_internal.h>
#include <crm/cluster/internal.h>
#include <crm/stonith-ng.h>
#include <crm/fencing/internal.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/common/mainloop.h>
#include <crm/cib/internal.h>
#include <crm/pengine/status.h>
#include <crm/pengine/internal.h>
#include <pacemaker-internal.h>
#include <pacemaker-fenced.h>
#define SUMMARY "daemon for executing fencing devices in a Pacemaker cluster"
char *stonith_our_uname = NULL;
long stonith_watchdog_timeout_ms = 0;
GList *stonith_watchdog_targets = NULL;
static GMainLoop *mainloop = NULL;
gboolean stand_alone = FALSE;
static gboolean stonith_shutdown_flag = FALSE;
static qb_ipcs_service_t *ipcs = NULL;
static xmlNode *local_cib = NULL;
static pe_working_set_t *fenced_data_set = NULL;
-static const unsigned long long data_set_flags = pe_flag_quick_location
+static const unsigned long long data_set_flags = pcmk_sched_location_only
| pe_flag_no_compat
| pe_flag_no_counts;
static cib_t *cib_api = NULL;
static pcmk__output_t *logger_out = NULL;
static pcmk__output_t *out = NULL;
pcmk__supported_format_t formats[] = {
PCMK__SUPPORTED_FORMAT_NONE,
PCMK__SUPPORTED_FORMAT_TEXT,
PCMK__SUPPORTED_FORMAT_XML,
{ NULL, NULL, NULL }
};
static struct {
bool no_cib_connect;
gchar **log_files;
} options;
static crm_exit_t exit_code = CRM_EX_OK;
static void stonith_shutdown(int nsig);
static void stonith_cleanup(void);
static int32_t
st_ipc_accept(qb_ipcs_connection_t * c, uid_t uid, gid_t gid)
{
if (stonith_shutdown_flag) {
crm_info("Ignoring new client [%d] during shutdown",
pcmk__client_pid(c));
return -EPERM;
}
if (pcmk__new_client(c, uid, gid) == NULL) {
return -EIO;
}
return 0;
}
/* Exit code means? */
static int32_t
st_ipc_dispatch(qb_ipcs_connection_t * qbc, void *data, size_t size)
{
uint32_t id = 0;
uint32_t flags = 0;
int call_options = 0;
xmlNode *request = NULL;
pcmk__client_t *c = pcmk__find_client(qbc);
const char *op = NULL;
if (c == NULL) {
crm_info("Invalid client: %p", qbc);
return 0;
}
request = pcmk__client_data2xml(c, data, &id, &flags);
if (request == NULL) {
pcmk__ipc_send_ack(c, id, flags, "nack", NULL, CRM_EX_PROTOCOL);
return 0;
}
op = crm_element_value(request, F_CRM_TASK);
if(pcmk__str_eq(op, CRM_OP_RM_NODE_CACHE, pcmk__str_casei)) {
crm_xml_add(request, F_TYPE, T_STONITH_NG);
crm_xml_add(request, F_STONITH_OPERATION, op);
crm_xml_add(request, F_STONITH_CLIENTID, c->id);
crm_xml_add(request, F_STONITH_CLIENTNAME, pcmk__client_name(c));
crm_xml_add(request, F_STONITH_CLIENTNODE, stonith_our_uname);
send_cluster_message(NULL, crm_msg_stonith_ng, request, FALSE);
free_xml(request);
return 0;
}
if (c->name == NULL) {
const char *value = crm_element_value(request, F_STONITH_CLIENTNAME);
if (value == NULL) {
value = "unknown";
}
c->name = crm_strdup_printf("%s.%u", value, c->pid);
}
crm_element_value_int(request, F_STONITH_CALLOPTS, &call_options);
crm_trace("Flags %#08" PRIx32 "/%#08x for command %" PRIu32
" from client %s", flags, call_options, id, pcmk__client_name(c));
if (pcmk_is_set(call_options, st_opt_sync_call)) {
CRM_ASSERT(flags & crm_ipc_client_response);
CRM_LOG_ASSERT(c->request_id == 0); /* This means the client has two synchronous events in-flight */
c->request_id = id; /* Reply only to the last one */
}
crm_xml_add(request, F_STONITH_CLIENTID, c->id);
crm_xml_add(request, F_STONITH_CLIENTNAME, pcmk__client_name(c));
crm_xml_add(request, F_STONITH_CLIENTNODE, stonith_our_uname);
crm_log_xml_trace(request, "ipc-received");
stonith_command(c, id, flags, request, NULL);
free_xml(request);
return 0;
}
/* Error code means? */
static int32_t
st_ipc_closed(qb_ipcs_connection_t * c)
{
pcmk__client_t *client = pcmk__find_client(c);
if (client == NULL) {
return 0;
}
crm_trace("Connection %p closed", c);
pcmk__free_client(client);
/* 0 means: yes, go ahead and destroy the connection */
return 0;
}
static void
st_ipc_destroy(qb_ipcs_connection_t * c)
{
crm_trace("Connection %p destroyed", c);
st_ipc_closed(c);
}
static void
stonith_peer_callback(xmlNode * msg, void *private_data)
{
const char *remote_peer = crm_element_value(msg, F_ORIG);
const char *op = crm_element_value(msg, F_STONITH_OPERATION);
if (pcmk__str_eq(op, "poke", pcmk__str_none)) {
return;
}
crm_log_xml_trace(msg, "Peer[inbound]");
stonith_command(NULL, 0, 0, msg, remote_peer);
}
#if SUPPORT_COROSYNC
static void
stonith_peer_ais_callback(cpg_handle_t handle,
const struct cpg_name *groupName,
uint32_t nodeid, uint32_t pid, void *msg, size_t msg_len)
{
uint32_t kind = 0;
xmlNode *xml = NULL;
const char *from = NULL;
char *data = pcmk_message_common_cs(handle, nodeid, pid, msg, &kind, &from);
if(data == NULL) {
return;
}
if (kind == crm_class_cluster) {
xml = string2xml(data);
if (xml == NULL) {
crm_err("Invalid XML: '%.120s'", data);
free(data);
return;
}
crm_xml_add(xml, F_ORIG, from);
/* crm_xml_add_int(xml, F_SEQ, wrapper->id); */
stonith_peer_callback(xml, NULL);
}
free_xml(xml);
free(data);
return;
}
static void
stonith_peer_cs_destroy(gpointer user_data)
{
crm_crit("Lost connection to cluster layer, shutting down");
stonith_shutdown(0);
}
#endif
void
do_local_reply(xmlNode *notify_src, pcmk__client_t *client, int call_options)
{
/* send callback to originating child */
int local_rc = pcmk_rc_ok;
int rid = 0;
uint32_t ipc_flags = crm_ipc_server_event;
if (pcmk_is_set(call_options, st_opt_sync_call)) {
CRM_LOG_ASSERT(client->request_id);
rid = client->request_id;
client->request_id = 0;
ipc_flags = crm_ipc_flags_none;
}
local_rc = pcmk__ipc_send_xml(client, rid, notify_src, ipc_flags);
if (local_rc == pcmk_rc_ok) {
crm_trace("Sent response %d to client %s",
rid, pcmk__client_name(client));
} else {
crm_warn("%synchronous reply to client %s failed: %s",
(pcmk_is_set(call_options, st_opt_sync_call)? "S" : "As"),
pcmk__client_name(client), pcmk_rc_str(local_rc));
}
}
uint64_t
get_stonith_flag(const char *name)
{
if (pcmk__str_eq(name, T_STONITH_NOTIFY_FENCE, pcmk__str_casei)) {
return st_callback_notify_fence;
} else if (pcmk__str_eq(name, STONITH_OP_DEVICE_ADD, pcmk__str_casei)) {
return st_callback_device_add;
} else if (pcmk__str_eq(name, STONITH_OP_DEVICE_DEL, pcmk__str_casei)) {
return st_callback_device_del;
} else if (pcmk__str_eq(name, T_STONITH_NOTIFY_HISTORY, pcmk__str_casei)) {
return st_callback_notify_history;
} else if (pcmk__str_eq(name, T_STONITH_NOTIFY_HISTORY_SYNCED, pcmk__str_casei)) {
return st_callback_notify_history_synced;
}
return st_callback_unknown;
}
static void
stonith_notify_client(gpointer key, gpointer value, gpointer user_data)
{
xmlNode *update_msg = user_data;
pcmk__client_t *client = value;
const char *type = NULL;
CRM_CHECK(client != NULL, return);
CRM_CHECK(update_msg != NULL, return);
type = crm_element_value(update_msg, F_SUBTYPE);
CRM_CHECK(type != NULL, crm_log_xml_err(update_msg, "notify"); return);
if (client->ipcs == NULL) {
crm_trace("Skipping client with NULL channel");
return;
}
if (pcmk_is_set(client->flags, get_stonith_flag(type))) {
int rc = pcmk__ipc_send_xml(client, 0, update_msg,
crm_ipc_server_event);
if (rc != pcmk_rc_ok) {
crm_warn("%s notification of client %s failed: %s "
CRM_XS " id=%.8s rc=%d", type, pcmk__client_name(client),
pcmk_rc_str(rc), client->id, rc);
} else {
crm_trace("Sent %s notification to client %s",
type, pcmk__client_name(client));
}
}
}
void
do_stonith_async_timeout_update(const char *client_id, const char *call_id, int timeout)
{
pcmk__client_t *client = NULL;
xmlNode *notify_data = NULL;
if (!timeout || !call_id || !client_id) {
return;
}
client = pcmk__find_client_by_id(client_id);
if (!client) {
return;
}
notify_data = create_xml_node(NULL, T_STONITH_TIMEOUT_VALUE);
crm_xml_add(notify_data, F_TYPE, T_STONITH_TIMEOUT_VALUE);
crm_xml_add(notify_data, F_STONITH_CALLID, call_id);
crm_xml_add_int(notify_data, F_STONITH_TIMEOUT, timeout);
crm_trace("timeout update is %d for client %s and call id %s", timeout, client_id, call_id);
if (client) {
pcmk__ipc_send_xml(client, 0, notify_data, crm_ipc_server_event);
}
free_xml(notify_data);
}
/*!
* \internal
* \brief Notify relevant IPC clients of a fencing operation result
*
* \param[in] type Notification type
* \param[in] result Result of fencing operation (assume success if NULL)
* \param[in] data If not NULL, add to notification as call data
*/
void
fenced_send_notification(const char *type, const pcmk__action_result_t *result,
xmlNode *data)
{
/* TODO: Standardize the contents of data */
xmlNode *update_msg = create_xml_node(NULL, "notify");
CRM_LOG_ASSERT(type != NULL);
crm_xml_add(update_msg, F_TYPE, T_STONITH_NOTIFY);
crm_xml_add(update_msg, F_SUBTYPE, type);
crm_xml_add(update_msg, F_STONITH_OPERATION, type);
stonith__xe_set_result(update_msg, result);
if (data != NULL) {
add_message_xml(update_msg, F_STONITH_CALLDATA, data);
}
crm_trace("Notifying clients");
pcmk__foreach_ipc_client(stonith_notify_client, update_msg);
free_xml(update_msg);
crm_trace("Notify complete");
}
/*!
* \internal
* \brief Send notifications for a configuration change to subscribed clients
*
* \param[in] op Notification type (STONITH_OP_DEVICE_ADD,
* STONITH_OP_DEVICE_DEL, STONITH_OP_LEVEL_ADD, or
* STONITH_OP_LEVEL_DEL)
* \param[in] result Operation result
* \param[in] desc Description of what changed
* \param[in] active Current number of devices or topologies in use
*/
static void
send_config_notification(const char *op, const pcmk__action_result_t *result,
const char *desc, int active)
{
xmlNode *notify_data = create_xml_node(NULL, op);
CRM_CHECK(notify_data != NULL, return);
crm_xml_add(notify_data, F_STONITH_DEVICE, desc);
crm_xml_add_int(notify_data, F_STONITH_ACTIVE, active);
fenced_send_notification(op, result, notify_data);
free_xml(notify_data);
}
/*!
* \internal
* \brief Send notifications for a device change to subscribed clients
*
* \param[in] op Notification type (STONITH_OP_DEVICE_ADD or
* STONITH_OP_DEVICE_DEL)
* \param[in] result Operation result
* \param[in] desc ID of device that changed
*/
void
fenced_send_device_notification(const char *op,
const pcmk__action_result_t *result,
const char *desc)
{
send_config_notification(op, result, desc, g_hash_table_size(device_list));
}
/*!
* \internal
* \brief Send notifications for a topology level change to subscribed clients
*
* \param[in] op Notification type (STONITH_OP_LEVEL_ADD or
* STONITH_OP_LEVEL_DEL)
* \param[in] result Operation result
* \param[in] desc String representation of level (<target>[<level_index>])
*/
void
fenced_send_level_notification(const char *op,
const pcmk__action_result_t *result,
const char *desc)
{
send_config_notification(op, result, desc, g_hash_table_size(topology));
}
static void
topology_remove_helper(const char *node, int level)
{
char *desc = NULL;
pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
xmlNode *data = create_xml_node(NULL, XML_TAG_FENCING_LEVEL);
crm_xml_add(data, F_STONITH_ORIGIN, __func__);
crm_xml_add_int(data, XML_ATTR_STONITH_INDEX, level);
crm_xml_add(data, XML_ATTR_STONITH_TARGET, node);
fenced_unregister_level(data, &desc, &result);
fenced_send_level_notification(STONITH_OP_LEVEL_DEL, &result, desc);
pcmk__reset_result(&result);
free_xml(data);
free(desc);
}
static void
remove_cib_device(xmlXPathObjectPtr xpathObj)
{
int max = numXpathResults(xpathObj), lpc = 0;
for (lpc = 0; lpc < max; lpc++) {
const char *rsc_id = NULL;
const char *standard = NULL;
xmlNode *match = getXpathResult(xpathObj, lpc);
CRM_LOG_ASSERT(match != NULL);
if(match != NULL) {
standard = crm_element_value(match, XML_AGENT_ATTR_CLASS);
}
if (!pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
continue;
}
rsc_id = crm_element_value(match, XML_ATTR_ID);
stonith_device_remove(rsc_id, true);
}
}
static void
remove_topology_level(xmlNode *match)
{
int index = 0;
char *key = NULL;
CRM_CHECK(match != NULL, return);
key = stonith_level_key(match, fenced_target_by_unknown);
crm_element_value_int(match, XML_ATTR_STONITH_INDEX, &index);
topology_remove_helper(key, index);
free(key);
}
static void
add_topology_level(xmlNode *match)
{
char *desc = NULL;
pcmk__action_result_t result = PCMK__UNKNOWN_RESULT;
CRM_CHECK(match != NULL, return);
fenced_register_level(match, &desc, &result);
fenced_send_level_notification(STONITH_OP_LEVEL_ADD, &result, desc);
pcmk__reset_result(&result);
free(desc);
}
static void
remove_fencing_topology(xmlXPathObjectPtr xpathObj)
{
int max = numXpathResults(xpathObj), lpc = 0;
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpathObj, lpc);
CRM_LOG_ASSERT(match != NULL);
if (match && crm_element_value(match, XML_DIFF_MARKER)) {
/* Deletion */
int index = 0;
char *target = stonith_level_key(match, fenced_target_by_unknown);
crm_element_value_int(match, XML_ATTR_STONITH_INDEX, &index);
if (target == NULL) {
crm_err("Invalid fencing target in element %s", ID(match));
} else if (index <= 0) {
crm_err("Invalid level for %s in element %s", target, ID(match));
} else {
topology_remove_helper(target, index);
}
/* } else { Deal with modifications during the 'addition' stage */
}
}
}
static void
register_fencing_topology(xmlXPathObjectPtr xpathObj)
{
int max = numXpathResults(xpathObj), lpc = 0;
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpathObj, lpc);
remove_topology_level(match);
add_topology_level(match);
}
}
/* Fencing
<diff crm_feature_set="3.0.6">
<diff-removed>
<fencing-topology>
<fencing-level id="f-p1.1" target="pcmk-1" index="1" devices="poison-pill" __crm_diff_marker__="removed:top"/>
<fencing-level id="f-p1.2" target="pcmk-1" index="2" devices="power" __crm_diff_marker__="removed:top"/>
<fencing-level devices="disk,network" id="f-p2.1"/>
</fencing-topology>
</diff-removed>
<diff-added>
<fencing-topology>
<fencing-level id="f-p.1" target="pcmk-1" index="1" devices="poison-pill" __crm_diff_marker__="added:top"/>
<fencing-level id="f-p2.1" target="pcmk-2" index="1" devices="disk,something"/>
<fencing-level id="f-p3.1" target="pcmk-2" index="2" devices="power" __crm_diff_marker__="added:top"/>
</fencing-topology>
</diff-added>
</diff>
*/
static void
fencing_topology_init(void)
{
xmlXPathObjectPtr xpathObj = NULL;
const char *xpath = "//" XML_TAG_FENCING_LEVEL;
crm_trace("Full topology refresh");
free_topology_list();
init_topology_list();
/* Grab everything */
xpathObj = xpath_search(local_cib, xpath);
register_fencing_topology(xpathObj);
freeXpathObject(xpathObj);
}
#define rsc_name(x) x->clone_name?x->clone_name:x->id
/*!
* \internal
* \brief Check whether our uname is in a resource's allowed node list
*
* \param[in] rsc Resource to check
*
* \return Pointer to node object if found, NULL otherwise
*/
static pe_node_t *
our_node_allowed_for(const pe_resource_t *rsc)
{
GHashTableIter iter;
pe_node_t *node = NULL;
if (rsc && stonith_our_uname) {
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
if (node && strcmp(node->details->uname, stonith_our_uname) == 0) {
break;
}
node = NULL;
}
}
return node;
}
static void
watchdog_device_update(void)
{
if (stonith_watchdog_timeout_ms > 0) {
if (!g_hash_table_lookup(device_list, STONITH_WATCHDOG_ID) &&
!stonith_watchdog_targets) {
/* getting here watchdog-fencing enabled, no device there yet
and reason isn't stonith_watchdog_targets preventing that
*/
int rc;
xmlNode *xml;
xml = create_device_registration_xml(
STONITH_WATCHDOG_ID,
st_namespace_internal,
STONITH_WATCHDOG_AGENT,
NULL, /* stonith_device_register will add our
own name as PCMK_STONITH_HOST_LIST param
so we can skip that here
*/
NULL);
rc = stonith_device_register(xml, TRUE);
free_xml(xml);
if (rc != pcmk_ok) {
rc = pcmk_legacy2rc(rc);
exit_code = CRM_EX_FATAL;
crm_crit("Cannot register watchdog pseudo fence agent: %s",
pcmk_rc_str(rc));
stonith_shutdown(0);
}
}
} else if (g_hash_table_lookup(device_list, STONITH_WATCHDOG_ID) != NULL) {
/* be silent if no device - todo parameter to stonith_device_remove */
stonith_device_remove(STONITH_WATCHDOG_ID, true);
}
}
static void
update_stonith_watchdog_timeout_ms(xmlNode *cib)
{
long timeout_ms = 0;
xmlNode *stonith_watchdog_xml = NULL;
const char *value = NULL;
stonith_watchdog_xml = get_xpath_object("//nvpair[@name='stonith-watchdog-timeout']",
cib, LOG_NEVER);
if (stonith_watchdog_xml) {
value = crm_element_value(stonith_watchdog_xml, XML_NVPAIR_ATTR_VALUE);
}
if (value) {
timeout_ms = crm_get_msec(value);
}
if (timeout_ms < 0) {
timeout_ms = pcmk__auto_watchdog_timeout();
}
stonith_watchdog_timeout_ms = timeout_ms;
}
/*!
* \internal
* \brief If a resource or any of its children are STONITH devices, update their
* definitions given a cluster working set.
*
* \param[in,out] rsc Resource to check
* \param[in,out] data_set Cluster working set with device information
*/
static void
cib_device_update(pe_resource_t *rsc, pe_working_set_t *data_set)
{
pe_node_t *node = NULL;
const char *value = NULL;
const char *rclass = NULL;
pe_node_t *parent = NULL;
/* If this is a complex resource, check children rather than this resource itself. */
if(rsc->children) {
GList *gIter = NULL;
for (gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
cib_device_update(gIter->data, data_set);
if(pe_rsc_is_clone(rsc)) {
crm_trace("Only processing one copy of the clone %s", rsc->id);
break;
}
}
return;
}
/* We only care about STONITH resources. */
rclass = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);
if (!pcmk__str_eq(rclass, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
return;
}
/* If this STONITH resource is disabled, remove it. */
if (pe__resource_is_disabled(rsc)) {
crm_info("Device %s has been disabled", rsc->id);
return;
}
/* if watchdog-fencing is disabled handle any watchdog-fence
resource as if it was disabled
*/
if ((stonith_watchdog_timeout_ms <= 0) &&
pcmk__str_eq(rsc->id, STONITH_WATCHDOG_ID, pcmk__str_none)) {
crm_info("Watchdog-fencing disabled thus handling "
"device %s as disabled", rsc->id);
return;
}
/* Check whether our node is allowed for this resource (and its parent if in a group) */
node = our_node_allowed_for(rsc);
if (rsc->parent && (rsc->parent->variant == pcmk_rsc_variant_group)) {
parent = our_node_allowed_for(rsc->parent);
}
if(node == NULL) {
/* Our node is disallowed, so remove the device */
GHashTableIter iter;
crm_info("Device %s has been disabled on %s: unknown", rsc->id, stonith_our_uname);
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
crm_trace("Available: %s = %d", pe__node_name(node), node->weight);
}
return;
} else if(node->weight < 0 || (parent && parent->weight < 0)) {
/* Our node (or its group) is disallowed by score, so remove the device */
int score = (node->weight < 0)? node->weight : parent->weight;
crm_info("Device %s has been disabled on %s: score=%s",
rsc->id, stonith_our_uname, pcmk_readable_score(score));
return;
} else {
/* Our node is allowed, so update the device information */
int rc;
xmlNode *data;
GHashTable *rsc_params = NULL;
GHashTableIter gIter;
stonith_key_value_t *params = NULL;
const char *name = NULL;
const char *agent = crm_element_value(rsc->xml, XML_EXPR_ATTR_TYPE);
const char *rsc_provides = NULL;
crm_debug("Device %s is allowed on %s: score=%d", rsc->id, stonith_our_uname, node->weight);
rsc_params = pe_rsc_params(rsc, node, data_set);
get_meta_attributes(rsc->meta, rsc, node, data_set);
rsc_provides = g_hash_table_lookup(rsc->meta, PCMK_STONITH_PROVIDES);
g_hash_table_iter_init(&gIter, rsc_params);
while (g_hash_table_iter_next(&gIter, (gpointer *) & name, (gpointer *) & value)) {
if (!name || !value) {
continue;
}
params = stonith_key_value_add(params, name, value);
crm_trace(" %s=%s", name, value);
}
data = create_device_registration_xml(rsc_name(rsc), st_namespace_any,
agent, params, rsc_provides);
stonith_key_value_freeall(params, 1, 1);
rc = stonith_device_register(data, TRUE);
CRM_ASSERT(rc == pcmk_ok);
free_xml(data);
}
}
/*!
* \internal
* \brief Update all STONITH device definitions based on current CIB
*/
static void
cib_devices_update(void)
{
GHashTableIter iter;
stonith_device_t *device = NULL;
crm_info("Updating devices to version %s.%s.%s",
crm_element_value(local_cib, XML_ATTR_GENERATION_ADMIN),
crm_element_value(local_cib, XML_ATTR_GENERATION),
crm_element_value(local_cib, XML_ATTR_NUMUPDATES));
if (fenced_data_set->now != NULL) {
crm_time_free(fenced_data_set->now);
fenced_data_set->now = NULL;
}
fenced_data_set->localhost = stonith_our_uname;
pcmk__schedule_actions(local_cib, data_set_flags, fenced_data_set);
g_hash_table_iter_init(&iter, device_list);
while (g_hash_table_iter_next(&iter, NULL, (void **)&device)) {
if (device->cib_registered) {
device->dirty = TRUE;
}
}
/* have list repopulated if cib has a watchdog-fencing-resource
TODO: keep a cached list for queries happening while we are refreshing
*/
g_list_free_full(stonith_watchdog_targets, free);
stonith_watchdog_targets = NULL;
g_list_foreach(fenced_data_set->resources, (GFunc) cib_device_update, fenced_data_set);
g_hash_table_iter_init(&iter, device_list);
while (g_hash_table_iter_next(&iter, NULL, (void **)&device)) {
if (device->dirty) {
g_hash_table_iter_remove(&iter);
}
}
fenced_data_set->input = NULL; // Wasn't a copy, so don't let API free it
pe_reset_working_set(fenced_data_set);
}
static void
update_cib_stonith_devices_v2(const char *event, xmlNode * msg)
{
xmlNode *change = NULL;
char *reason = NULL;
bool needs_update = FALSE;
xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);
for (change = pcmk__xml_first_child(patchset); change != NULL;
change = pcmk__xml_next(change)) {
const char *op = crm_element_value(change, XML_DIFF_OP);
const char *xpath = crm_element_value(change, XML_DIFF_PATH);
const char *shortpath = NULL;
if ((op == NULL) ||
(strcmp(op, "move") == 0) ||
strstr(xpath, "/"XML_CIB_TAG_STATUS)) {
continue;
} else if (pcmk__str_eq(op, "delete", pcmk__str_casei) && strstr(xpath, "/"XML_CIB_TAG_RESOURCE)) {
const char *rsc_id = NULL;
char *search = NULL;
char *mutable = NULL;
if (strstr(xpath, XML_TAG_ATTR_SETS) ||
strstr(xpath, XML_TAG_META_SETS)) {
needs_update = TRUE;
pcmk__str_update(&reason,
"(meta) attribute deleted from resource");
break;
}
pcmk__str_update(&mutable, xpath);
rsc_id = strstr(mutable, "primitive[@" XML_ATTR_ID "=\'");
if (rsc_id != NULL) {
rsc_id += strlen("primitive[@" XML_ATTR_ID "=\'");
search = strchr(rsc_id, '\'');
}
if (search != NULL) {
*search = 0;
stonith_device_remove(rsc_id, true);
/* watchdog_device_update called afterwards
to fall back to implicit definition if needed */
} else {
crm_warn("Ignoring malformed CIB update (resource deletion)");
}
free(mutable);
} else if (strstr(xpath, "/"XML_CIB_TAG_RESOURCES) ||
strstr(xpath, "/"XML_CIB_TAG_CONSTRAINTS) ||
strstr(xpath, "/"XML_CIB_TAG_RSCCONFIG)) {
shortpath = strrchr(xpath, '/'); CRM_ASSERT(shortpath);
reason = crm_strdup_printf("%s %s", op, shortpath+1);
needs_update = TRUE;
break;
}
}
if(needs_update) {
crm_info("Updating device list from CIB: %s", reason);
cib_devices_update();
} else {
crm_trace("No updates for device list found in CIB");
}
free(reason);
}
static void
update_cib_stonith_devices_v1(const char *event, xmlNode * msg)
{
const char *reason = "none";
gboolean needs_update = FALSE;
xmlXPathObjectPtr xpath_obj = NULL;
/* process new constraints */
xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_CONS_TAG_RSC_LOCATION);
if (numXpathResults(xpath_obj) > 0) {
int max = numXpathResults(xpath_obj), lpc = 0;
/* Safest and simplest to always recompute */
needs_update = TRUE;
reason = "new location constraint";
for (lpc = 0; lpc < max; lpc++) {
xmlNode *match = getXpathResult(xpath_obj, lpc);
crm_log_xml_trace(match, "new constraint");
}
}
freeXpathObject(xpath_obj);
/* process deletions */
xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_CIB_TAG_RESOURCE);
if (numXpathResults(xpath_obj) > 0) {
remove_cib_device(xpath_obj);
}
freeXpathObject(xpath_obj);
/* process additions */
xpath_obj = xpath_search(msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_CIB_TAG_RESOURCE);
if (numXpathResults(xpath_obj) > 0) {
int max = numXpathResults(xpath_obj), lpc = 0;
for (lpc = 0; lpc < max; lpc++) {
const char *rsc_id = NULL;
const char *standard = NULL;
xmlNode *match = getXpathResult(xpath_obj, lpc);
rsc_id = crm_element_value(match, XML_ATTR_ID);
standard = crm_element_value(match, XML_AGENT_ATTR_CLASS);
if (!pcmk__str_eq(standard, PCMK_RESOURCE_CLASS_STONITH, pcmk__str_casei)) {
continue;
}
crm_trace("Fencing resource %s was added or modified", rsc_id);
reason = "new resource";
needs_update = TRUE;
}
}
freeXpathObject(xpath_obj);
if(needs_update) {
crm_info("Updating device list from CIB: %s", reason);
cib_devices_update();
}
}
static void
update_cib_stonith_devices(const char *event, xmlNode * msg)
{
int format = 1;
xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);
CRM_ASSERT(patchset);
crm_element_value_int(patchset, "format", &format);
switch(format) {
case 1:
update_cib_stonith_devices_v1(event, msg);
break;
case 2:
update_cib_stonith_devices_v2(event, msg);
break;
default:
crm_warn("Unknown patch format: %d", format);
}
}
/*!
* \internal
* \brief Check whether a node has a specific attribute name/value
*
* \param[in] node Name of node to check
* \param[in] name Name of an attribute to look for
* \param[in] value The value the named attribute needs to be set to in order to be considered a match
*
* \return TRUE if the locally cached CIB has the specified node attribute
*/
gboolean
node_has_attr(const char *node, const char *name, const char *value)
{
GString *xpath = NULL;
xmlNode *match;
CRM_CHECK((local_cib != NULL) && (node != NULL) && (name != NULL)
&& (value != NULL), return FALSE);
/* Search for the node's attributes in the CIB. While the schema allows
* multiple sets of instance attributes, and allows instance attributes to
* use id-ref to reference values elsewhere, that is intended for resources,
* so we ignore that here.
*/
xpath = g_string_sized_new(256);
pcmk__g_strcat(xpath,
"//" XML_CIB_TAG_NODES "/" XML_CIB_TAG_NODE
"[@" XML_ATTR_UNAME "='", node, "']/" XML_TAG_ATTR_SETS
"/" XML_CIB_TAG_NVPAIR
"[@" XML_NVPAIR_ATTR_NAME "='", name, "' "
"and @" XML_NVPAIR_ATTR_VALUE "='", value, "']", NULL);
match = get_xpath_object((const char *) xpath->str, local_cib, LOG_NEVER);
g_string_free(xpath, TRUE);
return (match != NULL);
}
/*!
* \internal
* \brief Check whether a node does watchdog-fencing
*
* \param[in] node Name of node to check
*
* \return TRUE if node found in stonith_watchdog_targets
* or stonith_watchdog_targets is empty indicating
* all nodes are doing watchdog-fencing
*/
gboolean
node_does_watchdog_fencing(const char *node)
{
return ((stonith_watchdog_targets == NULL) ||
pcmk__str_in_list(node, stonith_watchdog_targets, pcmk__str_casei));
}
static void
update_fencing_topology(const char *event, xmlNode * msg)
{
int format = 1;
const char *xpath;
xmlXPathObjectPtr xpathObj = NULL;
xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);
CRM_ASSERT(patchset);
crm_element_value_int(patchset, "format", &format);
if(format == 1) {
/* Process deletions (only) */
xpath = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_REMOVED "//" XML_TAG_FENCING_LEVEL;
xpathObj = xpath_search(msg, xpath);
remove_fencing_topology(xpathObj);
freeXpathObject(xpathObj);
/* Process additions and changes */
xpath = "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_TAG_FENCING_LEVEL;
xpathObj = xpath_search(msg, xpath);
register_fencing_topology(xpathObj);
freeXpathObject(xpathObj);
} else if(format == 2) {
xmlNode *change = NULL;
int add[] = { 0, 0, 0 };
int del[] = { 0, 0, 0 };
xml_patch_versions(patchset, add, del);
for (change = pcmk__xml_first_child(patchset); change != NULL;
change = pcmk__xml_next(change)) {
const char *op = crm_element_value(change, XML_DIFF_OP);
const char *xpath = crm_element_value(change, XML_DIFF_PATH);
if(op == NULL) {
continue;
} else if(strstr(xpath, "/" XML_TAG_FENCING_LEVEL) != NULL) {
/* Change to a specific entry */
crm_trace("Handling %s operation %d.%d.%d for %s", op, add[0], add[1], add[2], xpath);
if(strcmp(op, "move") == 0) {
continue;
} else if(strcmp(op, "create") == 0) {
add_topology_level(change->children);
} else if(strcmp(op, "modify") == 0) {
xmlNode *match = first_named_child(change, XML_DIFF_RESULT);
if(match) {
remove_topology_level(match->children);
add_topology_level(match->children);
}
} else if(strcmp(op, "delete") == 0) {
/* Nuclear option, all we have is the path and an id... not enough to remove a specific entry */
crm_info("Re-initializing fencing topology after %s operation %d.%d.%d for %s",
op, add[0], add[1], add[2], xpath);
fencing_topology_init();
return;
}
} else if (strstr(xpath, "/" XML_TAG_FENCING_TOPOLOGY) != NULL) {
/* Change to the topology in general */
crm_info("Re-initializing fencing topology after top-level %s operation %d.%d.%d for %s",
op, add[0], add[1], add[2], xpath);
fencing_topology_init();
return;
} else if (strstr(xpath, "/" XML_CIB_TAG_CONFIGURATION)) {
/* Changes to the whole config section, possibly including the topology as a whild */
if(first_named_child(change, XML_TAG_FENCING_TOPOLOGY) == NULL) {
crm_trace("Nothing for us in %s operation %d.%d.%d for %s.",
op, add[0], add[1], add[2], xpath);
} else if(strcmp(op, "delete") == 0 || strcmp(op, "create") == 0) {
crm_info("Re-initializing fencing topology after top-level %s operation %d.%d.%d for %s.",
op, add[0], add[1], add[2], xpath);
fencing_topology_init();
return;
}
} else {
crm_trace("Nothing for us in %s operation %d.%d.%d for %s",
op, add[0], add[1], add[2], xpath);
}
}
} else {
crm_warn("Unknown patch format: %d", format);
}
}
static bool have_cib_devices = FALSE;
static void
update_cib_cache_cb(const char *event, xmlNode * msg)
{
int rc = pcmk_ok;
long timeout_ms_saved = stonith_watchdog_timeout_ms;
bool need_full_refresh = false;
if(!have_cib_devices) {
crm_trace("Skipping updates until we get a full dump");
return;
} else if(msg == NULL) {
crm_trace("Missing %s update", event);
return;
}
/* Maintain a local copy of the CIB so that we have full access
* to device definitions, location constraints, and node attributes
*/
if (local_cib != NULL) {
int rc = pcmk_ok;
xmlNode *patchset = NULL;
crm_element_value_int(msg, F_CIB_RC, &rc);
if (rc != pcmk_ok) {
return;
}
patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT);
pcmk__output_set_log_level(logger_out, LOG_TRACE);
out->message(out, "xml-patchset", patchset);
rc = xml_apply_patchset(local_cib, patchset, TRUE);
switch (rc) {
case pcmk_ok:
case -pcmk_err_old_data:
break;
case -pcmk_err_diff_resync:
case -pcmk_err_diff_failed:
crm_notice("[%s] Patch aborted: %s (%d)", event, pcmk_strerror(rc), rc);
free_xml(local_cib);
local_cib = NULL;
break;
default:
crm_warn("[%s] ABORTED: %s (%d)", event, pcmk_strerror(rc), rc);
free_xml(local_cib);
local_cib = NULL;
}
}
if (local_cib == NULL) {
crm_trace("Re-requesting full CIB");
rc = cib_api->cmds->query(cib_api, NULL, &local_cib, cib_scope_local | cib_sync_call);
if(rc != pcmk_ok) {
crm_err("Couldn't retrieve the CIB: %s (%d)", pcmk_strerror(rc), rc);
return;
}
CRM_ASSERT(local_cib != NULL);
need_full_refresh = true;
}
pcmk__refresh_node_caches_from_cib(local_cib);
update_stonith_watchdog_timeout_ms(local_cib);
if (timeout_ms_saved != stonith_watchdog_timeout_ms) {
need_full_refresh = true;
}
if (need_full_refresh) {
fencing_topology_init();
cib_devices_update();
} else {
// Partial refresh
update_fencing_topology(event, msg);
update_cib_stonith_devices(event, msg);
}
watchdog_device_update();
}
static void
init_cib_cache_cb(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data)
{
crm_info("Updating device list from CIB");
have_cib_devices = TRUE;
local_cib = copy_xml(output);
pcmk__refresh_node_caches_from_cib(local_cib);
update_stonith_watchdog_timeout_ms(local_cib);
fencing_topology_init();
cib_devices_update();
watchdog_device_update();
}
static void
stonith_shutdown(int nsig)
{
crm_info("Terminating with %d clients", pcmk__ipc_client_count());
stonith_shutdown_flag = TRUE;
if (mainloop != NULL && g_main_loop_is_running(mainloop)) {
g_main_loop_quit(mainloop);
}
}
static void
cib_connection_destroy(gpointer user_data)
{
if (stonith_shutdown_flag) {
crm_info("Connection to the CIB manager closed");
return;
} else {
crm_crit("Lost connection to the CIB manager, shutting down");
}
if (cib_api) {
cib_api->cmds->signoff(cib_api);
}
stonith_shutdown(0);
}
static void
stonith_cleanup(void)
{
if (cib_api) {
cib_api->cmds->del_notify_callback(cib_api, T_CIB_DIFF_NOTIFY, update_cib_cache_cb);
cib_api->cmds->signoff(cib_api);
}
if (ipcs) {
qb_ipcs_destroy(ipcs);
}
crm_peer_destroy();
pcmk__client_cleanup();
free_stonith_remote_op_list();
free_topology_list();
free_device_list();
free_metadata_cache();
fenced_unregister_handlers();
free(stonith_our_uname);
stonith_our_uname = NULL;
free_xml(local_cib);
local_cib = NULL;
}
static gboolean
stand_alone_cpg_cb(const gchar *option_name, const gchar *optarg, gpointer data,
GError **error)
{
stand_alone = FALSE;
options.no_cib_connect = true;
return TRUE;
}
static void
setup_cib(void)
{
int rc, retries = 0;
cib_api = cib_new();
if (cib_api == NULL) {
crm_err("No connection to the CIB manager");
return;
}
do {
sleep(retries);
rc = cib_api->cmds->signon(cib_api, CRM_SYSTEM_STONITHD, cib_command);
} while (rc == -ENOTCONN && ++retries < 5);
if (rc != pcmk_ok) {
crm_err("Could not connect to the CIB manager: %s (%d)", pcmk_strerror(rc), rc);
} else if (pcmk_ok !=
cib_api->cmds->add_notify_callback(cib_api, T_CIB_DIFF_NOTIFY, update_cib_cache_cb)) {
crm_err("Could not set CIB notification callback");
} else {
rc = cib_api->cmds->query(cib_api, NULL, NULL, cib_scope_local);
cib_api->cmds->register_callback(cib_api, rc, 120, FALSE, NULL, "init_cib_cache_cb",
init_cib_cache_cb);
cib_api->cmds->set_connection_dnotify(cib_api, cib_connection_destroy);
crm_info("Watching for fencing topology changes");
}
}
struct qb_ipcs_service_handlers ipc_callbacks = {
.connection_accept = st_ipc_accept,
.connection_created = NULL,
.msg_process = st_ipc_dispatch,
.connection_closed = st_ipc_closed,
.connection_destroyed = st_ipc_destroy
};
/*!
* \internal
* \brief Callback for peer status changes
*
* \param[in] type What changed
* \param[in] node What peer had the change
* \param[in] data Previous value of what changed
*/
static void
st_peer_update_callback(enum crm_status_type type, crm_node_t * node, const void *data)
{
if ((type != crm_status_processes)
&& !pcmk_is_set(node->flags, crm_remote_node)) {
/*
* This is a hack until we can send to a nodeid and/or we fix node name lookups
* These messages are ignored in stonith_peer_callback()
*/
xmlNode *query = create_xml_node(NULL, "stonith_command");
crm_xml_add(query, F_XML_TAGNAME, "stonith_command");
crm_xml_add(query, F_TYPE, T_STONITH_NG);
crm_xml_add(query, F_STONITH_OPERATION, "poke");
crm_debug("Broadcasting our uname because of node %u", node->id);
send_cluster_message(NULL, crm_msg_stonith_ng, query, FALSE);
free_xml(query);
}
}
static pcmk__cluster_option_t fencer_options[] = {
/* name, old name, type, allowed values,
* default value, validator,
* short description,
* long description
*/
{
PCMK_STONITH_HOST_ARGUMENT, NULL, "string", NULL, "port", NULL,
N_("Advanced use only: An alternate parameter to supply instead of 'port'"),
N_("some devices do not support the "
"standard 'port' parameter or may provide additional ones. Use "
"this to specify an alternate, device-specific, parameter "
"that should indicate the machine to be fenced. A value of "
"none can be used to tell the cluster not to supply any "
"additional parameters.")
},
{
PCMK_STONITH_HOST_MAP,NULL, "string", NULL, "", NULL,
N_("A mapping of host names to ports numbers for devices that do not support host names."),
N_("Eg. node1:1;node2:2,3 would tell the cluster to use port 1 for node1 and ports 2 and 3 for node2")
},
{
PCMK_STONITH_HOST_LIST,NULL, "string", NULL, "", NULL,
N_("Eg. node1,node2,node3"),
N_("A list of machines controlled by "
"this device (Optional unless pcmk_host_list=static-list)")
},
{
PCMK_STONITH_HOST_CHECK,NULL, "string", NULL, "dynamic-list", NULL,
N_("How to determine which machines are controlled by the device."),
N_("Allowed values: dynamic-list "
"(query the device via the 'list' command), static-list "
"(check the pcmk_host_list attribute), status "
"(query the device via the 'status' command), "
"none (assume every device can fence every "
"machine)")
},
{
PCMK_STONITH_DELAY_MAX,NULL, "time", NULL, "0s", NULL,
N_("Enable a base delay for fencing actions and specify base delay value."),
N_("Enable a delay of no more than the "
"time specified before executing fencing actions. Pacemaker "
"derives the overall delay by taking the value of "
"pcmk_delay_base and adding a random delay value such "
"that the sum is kept below this maximum.")
},
{
PCMK_STONITH_DELAY_BASE,NULL, "string", NULL, "0s", NULL,
N_("Enable a base delay for "
"fencing actions and specify base delay value."),
N_("This enables a static delay for "
"fencing actions, which can help avoid \"death matches\" where "
"two nodes try to fence each other at the same time. If "
"pcmk_delay_max is also used, a random delay will be "
"added such that the total delay is kept below that value."
"This can be set to a single time value to apply to any node "
"targeted by this device (useful if a separate device is "
"configured for each target), or to a node map (for example, "
"\"node1:1s;node2:5\") to set a different value per target.")
},
{
PCMK_STONITH_ACTION_LIMIT,NULL, "integer", NULL, "1", NULL,
N_("The maximum number of actions can be performed in parallel on this device"),
N_("Cluster property concurrent-fencing=true needs to be configured first."
"Then use this to specify the maximum number of actions can be performed in parallel on this device. -1 is unlimited.")
},
{
"pcmk_reboot_action", NULL, "string", NULL,
PCMK_ACTION_REBOOT, NULL,
N_("Advanced use only: An alternate command to run instead of 'reboot'"),
N_("Some devices do not support the standard commands or may provide additional ones.\n"
"Use this to specify an alternate, device-specific, command that implements the \'reboot\' action.")
},
{
"pcmk_reboot_timeout",NULL, "time", NULL, "60s", NULL,
N_("Advanced use only: Specify an alternate timeout to use for reboot actions instead of stonith-timeout"),
N_("Some devices need much more/less time to complete than normal."
"Use this to specify an alternate, device-specific, timeout for \'reboot\' actions.")
},
{
"pcmk_reboot_retries",NULL, "integer", NULL, "2", NULL,
N_("Advanced use only: The maximum number of times to retry the 'reboot' command within the timeout period"),
N_("Some devices do not support multiple connections."
" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
" Use this option to alter the number of times Pacemaker retries \'reboot\' actions before giving up.")
},
{
"pcmk_off_action", NULL, "string", NULL,
PCMK_ACTION_OFF, NULL,
N_("Advanced use only: An alternate command to run instead of \'off\'"),
N_("Some devices do not support the standard commands or may provide additional ones."
"Use this to specify an alternate, device-specific, command that implements the \'off\' action.")
},
{
"pcmk_off_timeout",NULL, "time", NULL, "60s", NULL,
N_("Advanced use only: Specify an alternate timeout to use for off actions instead of stonith-timeout"),
N_("Some devices need much more/less time to complete than normal."
"Use this to specify an alternate, device-specific, timeout for \'off\' actions.")
},
{
"pcmk_off_retries",NULL, "integer", NULL, "2", NULL,
N_("Advanced use only: The maximum number of times to retry the 'off' command within the timeout period"),
N_("Some devices do not support multiple connections."
" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
" Use this option to alter the number of times Pacemaker retries \'off\' actions before giving up.")
},
{
"pcmk_on_action", NULL, "string", NULL,
PCMK_ACTION_ON, NULL,
N_("Advanced use only: An alternate command to run instead of 'on'"),
N_("Some devices do not support the standard commands or may provide additional ones."
"Use this to specify an alternate, device-specific, command that implements the \'on\' action.")
},
{
"pcmk_on_timeout",NULL, "time", NULL, "60s", NULL,
N_("Advanced use only: Specify an alternate timeout to use for on actions instead of stonith-timeout"),
N_("Some devices need much more/less time to complete than normal."
"Use this to specify an alternate, device-specific, timeout for \'on\' actions.")
},
{
"pcmk_on_retries",NULL, "integer", NULL, "2", NULL,
N_("Advanced use only: The maximum number of times to retry the 'on' command within the timeout period"),
N_("Some devices do not support multiple connections."
" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
" Use this option to alter the number of times Pacemaker retries \'on\' actions before giving up.")
},
{
"pcmk_list_action",NULL, "string", NULL,
PCMK_ACTION_LIST, NULL,
N_("Advanced use only: An alternate command to run instead of \'list\'"),
N_("Some devices do not support the standard commands or may provide additional ones."
"Use this to specify an alternate, device-specific, command that implements the \'list\' action.")
},
{
"pcmk_list_timeout",NULL, "time", NULL, "60s", NULL,
N_("Advanced use only: Specify an alternate timeout to use for list actions instead of stonith-timeout"),
N_("Some devices need much more/less time to complete than normal."
"Use this to specify an alternate, device-specific, timeout for \'list\' actions.")
},
{
"pcmk_list_retries",NULL, "integer", NULL, "2", NULL,
N_("Advanced use only: The maximum number of times to retry the \'list\' command within the timeout period"),
N_("Some devices do not support multiple connections."
" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
" Use this option to alter the number of times Pacemaker retries \'list\' actions before giving up.")
},
{
"pcmk_monitor_action", NULL, "string", NULL,
PCMK_ACTION_MONITOR, NULL,
N_("Advanced use only: An alternate command to run instead of \'monitor\'"),
N_("Some devices do not support the standard commands or may provide additional ones."
"Use this to specify an alternate, device-specific, command that implements the \'monitor\' action.")
},
{
"pcmk_monitor_timeout",NULL, "time", NULL, "60s", NULL,
N_("Advanced use only: Specify an alternate timeout to use for monitor actions instead of stonith-timeout"),
N_("Some devices need much more/less time to complete than normal.\n"
"Use this to specify an alternate, device-specific, timeout for \'monitor\' actions.")
},
{
"pcmk_monitor_retries",NULL, "integer", NULL, "2", NULL,
N_("Advanced use only: The maximum number of times to retry the \'monitor\' command within the timeout period"),
N_("Some devices do not support multiple connections."
" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
" Use this option to alter the number of times Pacemaker retries \'monitor\' actions before giving up.")
},
{
"pcmk_status_action", NULL, "string", NULL,
PCMK_ACTION_STATUS, NULL,
N_("Advanced use only: An alternate command to run instead of \'status\'"),
N_("Some devices do not support the standard commands or may provide additional ones."
"Use this to specify an alternate, device-specific, command that implements the \'status\' action.")
},
{
"pcmk_status_timeout",NULL, "time", NULL, "60s", NULL,
N_("Advanced use only: Specify an alternate timeout to use for status actions instead of stonith-timeout"),
N_("Some devices need much more/less time to complete than normal."
"Use this to specify an alternate, device-specific, timeout for \'status\' actions.")
},
{
"pcmk_status_retries",NULL, "integer", NULL, "2", NULL,
N_("Advanced use only: The maximum number of times to retry the \'status\' command within the timeout period"),
N_("Some devices do not support multiple connections."
" Operations may 'fail' if the device is busy with another task so Pacemaker will automatically retry the operation, if there is time remaining."
" Use this option to alter the number of times Pacemaker retries \'status\' actions before giving up.")
},
};
void
fencer_metadata(void)
{
const char *desc_short = N_("Instance attributes available for all "
"\"stonith\"-class resources");
const char *desc_long = N_("Instance attributes available for all \"stonith\"-"
"class resources and used by Pacemaker's fence "
"daemon, formerly known as stonithd");
gchar *s = pcmk__format_option_metadata("pacemaker-fenced", desc_short,
desc_long, fencer_options,
PCMK__NELEM(fencer_options));
printf("%s", s);
g_free(s);
}
static GOptionEntry entries[] = {
{ "stand-alone", 's', G_OPTION_FLAG_NONE, G_OPTION_ARG_NONE, &stand_alone,
N_("Deprecated (will be removed in a future release)"), NULL },
{ "stand-alone-w-cpg", 'c', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK,
stand_alone_cpg_cb, N_("Intended for use in regression testing only"), NULL },
{ "logfile", 'l', G_OPTION_FLAG_NONE, G_OPTION_ARG_FILENAME_ARRAY,
&options.log_files, N_("Send logs to the additional named logfile"), NULL },
{ NULL }
};
static GOptionContext *
build_arg_context(pcmk__common_args_t *args, GOptionGroup **group)
{
GOptionContext *context = NULL;
context = pcmk__build_arg_context(args, "text (default), xml", group,
"[metadata]");
pcmk__add_main_args(context, entries);
return context;
}
int
main(int argc, char **argv)
{
int rc = pcmk_rc_ok;
crm_cluster_t *cluster = NULL;
crm_ipc_t *old_instance = NULL;
GError *error = NULL;
GOptionGroup *output_group = NULL;
pcmk__common_args_t *args = pcmk__new_common_args(SUMMARY);
gchar **processed_args = pcmk__cmdline_preproc(argv, "l");
GOptionContext *context = build_arg_context(args, &output_group);
crm_log_preinit(NULL, argc, argv);
pcmk__register_formats(output_group, formats);
if (!g_option_context_parse_strv(context, &processed_args, &error)) {
exit_code = CRM_EX_USAGE;
goto done;
}
rc = pcmk__output_new(&out, args->output_ty, args->output_dest, argv);
if (rc != pcmk_rc_ok) {
exit_code = CRM_EX_ERROR;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Error creating output format %s: %s",
args->output_ty, pcmk_rc_str(rc));
goto done;
}
if (args->version) {
out->version(out, false);
goto done;
}
if ((g_strv_length(processed_args) >= 2)
&& pcmk__str_eq(processed_args[1], "metadata", pcmk__str_none)) {
fencer_metadata();
goto done;
}
// Open additional log files
pcmk__add_logfiles(options.log_files, out);
crm_log_init(NULL, LOG_INFO + args->verbosity, TRUE,
(args->verbosity > 0), argc, argv, FALSE);
crm_notice("Starting Pacemaker fencer");
old_instance = crm_ipc_new("stonith-ng", 0);
if (old_instance == NULL) {
/* crm_ipc_new() will have already logged an error message with
* crm_err()
*/
exit_code = CRM_EX_FATAL;
goto done;
}
if (pcmk__connect_generic_ipc(old_instance) == pcmk_rc_ok) {
// IPC endpoint already up
crm_ipc_close(old_instance);
crm_ipc_destroy(old_instance);
crm_err("pacemaker-fenced is already active, aborting startup");
goto done;
} else {
// Not up or not authentic, we'll proceed either way
crm_ipc_destroy(old_instance);
old_instance = NULL;
}
mainloop_add_signal(SIGTERM, stonith_shutdown);
crm_peer_init();
fenced_data_set = pe_new_working_set();
CRM_ASSERT(fenced_data_set != NULL);
cluster = pcmk_cluster_new();
/* Initialize the logger prior to setup_cib(). update_cib_cache_cb() may
* call the "xml-patchset" message function, which needs the logger, after
* setup_cib() has run.
*/
rc = pcmk__log_output_new(&logger_out) != pcmk_rc_ok;
if (rc != pcmk_rc_ok) {
exit_code = CRM_EX_FATAL;
g_set_error(&error, PCMK__EXITC_ERROR, exit_code,
"Error creating output format log: %s", pcmk_rc_str(rc));
goto done;
}
pe__register_messages(logger_out);
pcmk__register_lib_messages(logger_out);
pcmk__output_set_log_level(logger_out, LOG_TRACE);
fenced_data_set->priv = logger_out;
if (!stand_alone) {
#if SUPPORT_COROSYNC
if (is_corosync_cluster()) {
cluster->destroy = stonith_peer_cs_destroy;
cluster->cpg.cpg_deliver_fn = stonith_peer_ais_callback;
cluster->cpg.cpg_confchg_fn = pcmk_cpg_membership;
}
#endif // SUPPORT_COROSYNC
crm_set_status_callback(&st_peer_update_callback);
if (crm_cluster_connect(cluster) == FALSE) {
exit_code = CRM_EX_FATAL;
crm_crit("Cannot sign in to the cluster... terminating");
goto done;
}
pcmk__str_update(&stonith_our_uname, cluster->uname);
if (!options.no_cib_connect) {
setup_cib();
}
} else {
pcmk__str_update(&stonith_our_uname, "localhost");
crm_warn("Stand-alone mode is deprecated and will be removed "
"in a future release");
}
init_device_list();
init_topology_list();
pcmk__serve_fenced_ipc(&ipcs, &ipc_callbacks);
// Create the mainloop and run it...
mainloop = g_main_loop_new(NULL, FALSE);
crm_notice("Pacemaker fencer successfully started and accepting connections");
g_main_loop_run(mainloop);
done:
g_strfreev(processed_args);
pcmk__free_arg_context(context);
g_strfreev(options.log_files);
stonith_cleanup();
pcmk_cluster_free(cluster);
pe_free_working_set(fenced_data_set);
pcmk__output_and_clear_error(&error, out);
if (logger_out != NULL) {
logger_out->finish(logger_out, exit_code, true, NULL);
pcmk__output_free(logger_out);
}
if (out != NULL) {
out->finish(out, exit_code, true, NULL);
pcmk__output_free(out);
}
pcmk__unregister_formats();
crm_exit(exit_code);
}
diff --git a/include/crm/pengine/pe_types.h b/include/crm/pengine/pe_types.h
index efb5a34c99..3ccd5ebcf7 100644
--- a/include/crm/pengine/pe_types.h
+++ b/include/crm/pengine/pe_types.h
@@ -1,501 +1,500 @@
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#ifndef PCMK__CRM_PENGINE_PE_TYPES__H
# define PCMK__CRM_PENGINE_PE_TYPES__H
# include <stdbool.h> // bool
# include <sys/types.h> // time_t
# include <libxml/tree.h> // xmlNode
# include <glib.h> // gboolean, guint, GList, GHashTable
# include <crm/common/iso8601.h>
# include <crm/common/scheduler.h>
# include <crm/pengine/common.h>
#ifdef __cplusplus
extern "C" {
#endif
/*!
* \file
* \brief Data types for cluster status
* \ingroup pengine
*/
typedef struct pe_node_s pe_node_t;
typedef struct pe_action_s pe_action_t;
typedef struct pe_resource_s pe_resource_t;
typedef struct pe_working_set_s pe_working_set_t;
typedef struct resource_object_functions_s {
gboolean (*unpack) (pe_resource_t*, pe_working_set_t*);
pe_resource_t *(*find_rsc) (pe_resource_t *parent, const char *search,
const pe_node_t *node, int flags);
/* parameter result must be free'd */
char *(*parameter) (pe_resource_t*, pe_node_t*, gboolean, const char*,
pe_working_set_t*);
//! \deprecated will be removed in a future release
void (*print) (pe_resource_t*, const char*, long, void*);
gboolean (*active) (pe_resource_t*, gboolean);
enum rsc_role_e (*state) (const pe_resource_t*, gboolean);
pe_node_t *(*location) (const pe_resource_t*, GList**, int);
void (*free) (pe_resource_t*);
void (*count) (pe_resource_t*);
gboolean (*is_filtered) (const pe_resource_t*, GList *, gboolean);
/*!
* \brief Find a node (and optionally count all) where resource is active
*
* \param[in] rsc Resource to check
* \param[out] count_all If not NULL, set this to count of active nodes
* \param[out] count_clean If not NULL, set this to count of clean nodes
*
* \return A node where the resource is active, preferring the source node
* if the resource is involved in a partial migration or a clean,
* online node if the resource's "requires" is "quorum" or
* "nothing", or NULL if the resource is inactive.
*/
pe_node_t *(*active_node)(const pe_resource_t *rsc, unsigned int *count_all,
unsigned int *count_clean);
/*!
* \brief Get maximum resource instances per node
*
* \param[in] rsc Resource to check
*
* \return Maximum number of \p rsc instances that can be active on one node
*/
unsigned int (*max_per_node)(const pe_resource_t *rsc);
} resource_object_functions_t;
typedef struct resource_alloc_functions_s resource_alloc_functions_t;
-# define pe_flag_quick_location 0x00100000ULL
# define pe_flag_sanitized 0x00200000ULL
//! \deprecated
# define pe_flag_stdout 0x00400000ULL
//! Don't count total, disabled and blocked resource instances
# define pe_flag_no_counts 0x00800000ULL
/*! Skip deprecated code that is kept solely for backward API compatibility.
* (Internal code should always set this.)
*/
# define pe_flag_no_compat 0x01000000ULL
# define pe_flag_show_scores 0x02000000ULL
# define pe_flag_show_utilization 0x04000000ULL
/*!
* When scheduling, only unpack the CIB (including constraints), calculate
* as much cluster status as possible, and apply node health.
*/
# define pe_flag_check_config 0x08000000ULL
struct pe_working_set_s {
xmlNode *input;
crm_time_t *now;
/* options extracted from the input */
char *dc_uuid;
pe_node_t *dc_node;
const char *stonith_action;
const char *placement_strategy;
unsigned long long flags;
int stonith_timeout;
enum pe_quorum_policy no_quorum_policy;
GHashTable *config_hash;
GHashTable *tickets;
// Actions for which there can be only one (e.g. fence nodeX)
GHashTable *singletons;
GList *nodes;
GList *resources;
GList *placement_constraints;
GList *ordering_constraints;
GList *colocation_constraints;
GList *ticket_constraints;
GList *actions;
xmlNode *failed;
xmlNode *op_defaults;
xmlNode *rsc_defaults;
/* stats */
int num_synapse;
int max_valid_nodes; //! Deprecated (will be removed in a future release)
int order_id;
int action_id;
/* final output */
xmlNode *graph;
GHashTable *template_rsc_sets;
const char *localhost;
GHashTable *tags;
int blocked_resources;
int disabled_resources;
GList *param_check; // History entries that need to be checked
GList *stop_needed; // Containers that need stop actions
time_t recheck_by; // Hint to controller to re-run scheduler by this time
int ninstances; // Total number of resource instances
guint shutdown_lock;// How long (seconds) to lock resources to shutdown node
int priority_fencing_delay; // Priority fencing delay
void *priv;
guint node_pending_timeout; // Node pending timeout
};
struct pe_node_shared_s {
const char *id;
const char *uname;
enum node_type type;
/* @TODO convert these flags into a bitfield */
gboolean online;
gboolean standby;
gboolean standby_onfail;
gboolean pending;
gboolean unclean;
gboolean unseen;
gboolean shutdown;
gboolean expected_up;
gboolean is_dc;
gboolean maintenance;
gboolean rsc_discovery_enabled;
gboolean remote_requires_reset;
gboolean remote_was_fenced;
gboolean remote_maintenance; /* what the remote-rsc is thinking */
gboolean unpacked;
int num_resources;
pe_resource_t *remote_rsc;
GList *running_rsc; /* pe_resource_t* */
GList *allocated_rsc; /* pe_resource_t* */
GHashTable *attrs; /* char* => char* */
GHashTable *utilization;
GHashTable *digest_cache; //!< cache of calculated resource digests
int priority; // calculated based on the priority of resources running on the node
pe_working_set_t *data_set; //!< Cluster that this node is part of
};
struct pe_node_s {
int weight;
gboolean fixed; //!< \deprecated Will be removed in a future release
int count;
struct pe_node_shared_s *details;
int rsc_discover_mode;
};
# define pe_rsc_orphan 0x00000001ULL
# define pe_rsc_managed 0x00000002ULL
# define pe_rsc_block 0x00000004ULL
# define pe_rsc_orphan_container_filler 0x00000008ULL
# define pe_rsc_notify 0x00000010ULL
# define pe_rsc_unique 0x00000020ULL
# define pe_rsc_fence_device 0x00000040ULL
# define pe_rsc_promotable 0x00000080ULL
# define pe_rsc_provisional 0x00000100ULL
# define pe_rsc_allocating 0x00000200ULL
# define pe_rsc_merging 0x00000400ULL
# define pe_rsc_restarting 0x00000800ULL
# define pe_rsc_stop 0x00001000ULL
# define pe_rsc_reload 0x00002000ULL
# define pe_rsc_allow_remote_remotes 0x00004000ULL
# define pe_rsc_critical 0x00008000ULL
# define pe_rsc_failed 0x00010000ULL
# define pe_rsc_detect_loop 0x00020000ULL
# define pe_rsc_runnable 0x00040000ULL
# define pe_rsc_start_pending 0x00080000ULL
//!< \deprecated Do not use
# define pe_rsc_starting 0x00100000ULL
//!< \deprecated Do not use
# define pe_rsc_stopping 0x00200000ULL
# define pe_rsc_stop_unexpected 0x00400000ULL
# define pe_rsc_allow_migrate 0x00800000ULL
# define pe_rsc_failure_ignored 0x01000000ULL
# define pe_rsc_replica_container 0x02000000ULL
# define pe_rsc_maintenance 0x04000000ULL
# define pe_rsc_is_container 0x08000000ULL
# define pe_rsc_needs_quorum 0x10000000ULL
# define pe_rsc_needs_fencing 0x20000000ULL
# define pe_rsc_needs_unfencing 0x40000000ULL
/* *INDENT-OFF* */
enum pe_action_flags {
pe_action_pseudo = 0x00001,
pe_action_runnable = 0x00002,
pe_action_optional = 0x00004,
pe_action_print_always = 0x00008,
pe_action_have_node_attrs = 0x00010,
pe_action_implied_by_stonith = 0x00040,
pe_action_migrate_runnable = 0x00080,
pe_action_dumped = 0x00100,
pe_action_processed = 0x00200,
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
pe_action_clear = 0x00400, //! \deprecated Unused
#endif
pe_action_dangle = 0x00800,
/* This action requires one or more of its dependencies to be runnable.
* We use this to clear the runnable flag before checking dependencies.
*/
pe_action_requires_any = 0x01000,
pe_action_reschedule = 0x02000,
pe_action_tracking = 0x04000,
pe_action_dedup = 0x08000, //! Internal state tracking when creating graph
pe_action_dc = 0x10000, //! Action may run on DC instead of target
};
/* *INDENT-ON* */
struct pe_resource_s {
char *id;
char *clone_name;
xmlNode *xml;
xmlNode *orig_xml;
xmlNode *ops_xml;
pe_working_set_t *cluster;
pe_resource_t *parent;
enum pe_obj_types variant;
void *variant_opaque;
resource_object_functions_t *fns;
resource_alloc_functions_t *cmds;
enum rsc_recovery_type recovery_type;
enum pe_restart restart_type; //!< \deprecated will be removed in future release
int priority;
int stickiness;
int sort_index;
int failure_timeout;
int migration_threshold;
guint remote_reconnect_ms;
char *pending_task;
unsigned long long flags;
// @TODO merge these into flags
gboolean is_remote_node;
gboolean exclusive_discover;
/* Pay special attention to whether you want to use rsc_cons_lhs and
* rsc_cons directly, which include only colocations explicitly involving
* this resource, or call libpacemaker's pcmk__with_this_colocations() and
* pcmk__this_with_colocations() functions, which may return relevant
* colocations involving the resource's ancestors as well.
*/
//!@{
//! This field should be treated as internal to Pacemaker
GList *rsc_cons_lhs; // List of pcmk__colocation_t*
GList *rsc_cons; // List of pcmk__colocation_t*
GList *rsc_location; // List of pe__location_t*
GList *actions; // List of pe_action_t*
GList *rsc_tickets; // List of rsc_ticket*
//!@}
pe_node_t *allocated_to;
pe_node_t *partial_migration_target;
pe_node_t *partial_migration_source;
GList *running_on; /* pe_node_t* */
GHashTable *known_on; /* pe_node_t* */
GHashTable *allowed_nodes; /* pe_node_t* */
enum rsc_role_e role;
enum rsc_role_e next_role;
GHashTable *meta;
GHashTable *parameters; //! \deprecated Use pe_rsc_params() instead
GHashTable *utilization;
GList *children; /* pe_resource_t* */
GList *dangling_migrations; /* pe_node_t* */
pe_resource_t *container;
GList *fillers;
// @COMPAT These should be made const at next API compatibility break
pe_node_t *pending_node; // Node on which pending_task is happening
pe_node_t *lock_node; // Resource is shutdown-locked to this node
time_t lock_time; // When shutdown lock started
/* Resource parameters may have node-attribute-based rules, which means the
* values can vary by node. This table is a cache of parameter name/value
* tables for each node (as needed). Use pe_rsc_params() to get the table
* for a given node.
*/
GHashTable *parameter_cache; // Key = node name, value = parameters table
};
struct pe_action_s {
int id;
int priority;
pe_resource_t *rsc;
pe_node_t *node;
xmlNode *op_entry;
char *task;
char *uuid;
char *cancel_task;
char *reason;
enum pe_action_flags flags;
enum rsc_start_requirement needs;
enum action_fail_response on_fail;
enum rsc_role_e fail_role;
GHashTable *meta;
GHashTable *extra;
/*
* These two varables are associated with the constraint logic
* that involves first having one or more actions runnable before
* then allowing this action to execute.
*
* These varables are used with features such as 'clone-min' which
* requires at minimum X number of cloned instances to be running
* before an order dependency can run. Another option that uses
* this is 'require-all=false' in ordering constrants. This option
* says "only require one instance of a resource to start before
* allowing dependencies to start" -- basically, require-all=false is
* the same as clone-min=1.
*/
/* current number of known runnable actions in the before list. */
int runnable_before;
/* the number of "before" runnable actions required for this action
* to be considered runnable */
int required_runnable_before;
GList *actions_before; /* pe_action_wrapper_t* */
GList *actions_after; /* pe_action_wrapper_t* */
/* Some of the above fields could be moved to the details,
* except for API backward compatibility.
*/
void *action_details; // varies by type of action
};
typedef struct pe_ticket_s {
char *id;
gboolean granted;
time_t last_granted;
gboolean standby;
GHashTable *state;
} pe_ticket_t;
typedef struct pe_tag_s {
char *id;
GList *refs;
} pe_tag_t;
//! Internal tracking for transition graph creation
enum pe_link_state {
pe_link_not_dumped, //! Internal tracking for transition graph creation
pe_link_dumped, //! Internal tracking for transition graph creation
pe_link_dup, //! \deprecated No longer used by Pacemaker
};
enum pe_discover_e {
pe_discover_always = 0,
pe_discover_never,
pe_discover_exclusive,
};
/* *INDENT-OFF* */
enum pe_ordering {
pe_order_none = 0x0, /* deleted */
pe_order_optional = 0x1, /* pure ordering, nothing implied */
pe_order_apply_first_non_migratable = 0x2, /* Only apply this constraint's ordering if first is not migratable. */
pe_order_implies_first = 0x10, /* If 'then' is required, ensure 'first' is too */
pe_order_implies_then = 0x20, /* If 'first' is required, ensure 'then' is too */
pe_order_promoted_implies_first = 0x40, /* If 'then' is required and then's rsc is promoted, ensure 'first' becomes required too */
/* first requires then to be both runnable and migrate runnable. */
pe_order_implies_first_migratable = 0x80,
pe_order_runnable_left = 0x100, /* 'then' requires 'first' to be runnable */
pe_order_pseudo_left = 0x200, /* 'then' can only be pseudo if 'first' is runnable */
pe_order_implies_then_on_node = 0x400, /* If 'first' is required on 'nodeX',
* ensure instances of 'then' on 'nodeX' are too.
* Only really useful if 'then' is a clone and 'first' is not
*/
pe_order_probe = 0x800, /* If 'first->rsc' is
* - running but about to stop, ignore the constraint
* - otherwise, behave as runnable_left
*/
pe_order_restart = 0x1000, /* 'then' is runnable if 'first' is optional or runnable */
pe_order_stonith_stop = 0x2000, //<! \deprecated Will be removed in future release
pe_order_serialize_only = 0x4000, /* serialize */
pe_order_same_node = 0x8000, /* applies only if 'first' and 'then' are on same node */
pe_order_implies_first_printed = 0x10000, /* Like ..implies_first but only ensures 'first' is printed, not mandatory */
pe_order_implies_then_printed = 0x20000, /* Like ..implies_then but only ensures 'then' is printed, not mandatory */
pe_order_asymmetrical = 0x100000, /* Indicates asymmetrical one way ordering constraint. */
pe_order_load = 0x200000, /* Only relevant if... */
pe_order_one_or_more = 0x400000, /* 'then' is runnable only if one or more of its dependencies are too */
pe_order_anti_colocation = 0x800000,
pe_order_preserve = 0x1000000, /* Hack for breaking user ordering constraints with container resources */
pe_order_then_cancels_first = 0x2000000, // if 'then' becomes required, 'first' becomes optional
pe_order_trace = 0x4000000, /* test marker */
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
// \deprecated Use pe_order_promoted_implies_first instead
pe_order_implies_first_master = pe_order_promoted_implies_first,
#endif
};
/* *INDENT-ON* */
typedef struct pe_action_wrapper_s {
enum pe_ordering type;
enum pe_link_state state;
pe_action_t *action;
} pe_action_wrapper_t;
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
#include <crm/pengine/pe_types_compat.h>
#endif
#ifdef __cplusplus
}
#endif
#endif // PCMK__CRM_PENGINE_PE_TYPES__H
diff --git a/include/crm/pengine/pe_types_compat.h b/include/crm/pengine/pe_types_compat.h
index e22764fcc8..0148215950 100644
--- a/include/crm/pengine/pe_types_compat.h
+++ b/include/crm/pengine/pe_types_compat.h
@@ -1,122 +1,125 @@
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#ifndef PCMK__CRM_PENGINE_PE_TYPES_COMPAT__H
# define PCMK__CRM_PENGINE_PE_TYPES_COMPAT__H
#include <crm/pengine/pe_types.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file
* \brief Deprecated Pacemaker scheduler API
* \ingroup pengine
* \deprecated Do not include this header directly. The scheduler APIs in this
* header, and the header itself, will be removed in a future
* release.
*/
//! \deprecated Use pcmk_sched_quorate instead
#define pe_flag_have_quorum pcmk_sched_quorate
//! \deprecated Use pcmk_sched_symmetric_cluster instead
#define pe_flag_symmetric_cluster pcmk_sched_symmetric_cluster
//! \deprecated Use pcmk_sched_in_maintenance instead
#define pe_flag_maintenance_mode pcmk_sched_in_maintenance
//! \deprecated Use pcmk_sched_fencing_enabled instead
#define pe_flag_stonith_enabled pcmk_sched_fencing_enabled
//! \deprecated Use pcmk_sched_have_fencing instead
#define pe_flag_have_stonith_resource pcmk_sched_have_fencing
//! \deprecated Use pcmk_sched_enable_unfencing instead
#define pe_flag_enable_unfencing pcmk_sched_enable_unfencing
//! \deprecated Use pcmk_sched_concurrent_fencing instead
#define pe_flag_concurrent_fencing pcmk_sched_concurrent_fencing
//! \deprecated Use pcmk_sched_stop_removed_resources instead
#define pe_flag_stop_rsc_orphans pcmk_sched_stop_removed_resources
//! \deprecated Use pcmk_sched_cancel_removed_actions instead
#define pe_flag_stop_action_orphans pcmk_sched_cancel_removed_actions
//! \deprecated Use pcmk_sched_stop_all instead
#define pe_flag_stop_everything pcmk_sched_stop_all
//! \deprecated Use pcmk_sched_start_failure_fatal instead
#define pe_flag_start_failure_fatal pcmk_sched_start_failure_fatal
//! \deprecated Do not use
#define pe_flag_remove_after_stop pcmk_sched_remove_after_stop
//! \deprecated Use pcmk_sched_startup_fencing instead
#define pe_flag_startup_fencing pcmk_sched_startup_fencing
//! \deprecated Use pcmk_sched_shutdown_lock instead
#define pe_flag_shutdown_lock pcmk_sched_shutdown_lock
//! \deprecated Use pcmk_sched_probe_resources instead
#define pe_flag_startup_probes pcmk_sched_probe_resources
//! \deprecated Use pcmk_sched_have_status instead
#define pe_flag_have_status pcmk_sched_have_status
//! \deprecated Use pcmk_sched_have_remote_nodes instead
#define pe_flag_have_remote_nodes pcmk_sched_have_remote_nodes
+//! \deprecated Use pcmk_sched_location_only instead
+#define pe_flag_quick_location pcmk_sched_location_only
+
//!@{
//! \deprecated Do not use (unused by Pacemaker)
enum pe_graph_flags {
pe_graph_none = 0x00000,
pe_graph_updated_first = 0x00001,
pe_graph_updated_then = 0x00002,
pe_graph_disable = 0x00004,
};
//!@}
//!@{
//! \deprecated Do not use
enum pe_check_parameters {
pe_check_last_failure,
pe_check_active,
};
//!@}
//!< \deprecated Use pe_action_t instead
typedef struct pe_action_s action_t;
//!< \deprecated Use pe_action_wrapper_t instead
typedef struct pe_action_wrapper_s action_wrapper_t;
//!< \deprecated Use pe_node_t instead
typedef struct pe_node_s node_t;
//!< \deprecated Use enum pe_quorum_policy instead
typedef enum pe_quorum_policy no_quorum_policy_t;
//!< \deprecated use pe_resource_t instead
typedef struct pe_resource_s resource_t;
//!< \deprecated Use pe_tag_t instead
typedef struct pe_tag_s tag_t;
//!< \deprecated Use pe_ticket_t instead
typedef struct pe_ticket_s ticket_t;
#ifdef __cplusplus
}
#endif
#endif // PCMK__CRM_PENGINE_PE_TYPES_COMPAT__H
diff --git a/lib/pacemaker/pcmk_scheduler.c b/lib/pacemaker/pcmk_scheduler.c
index 190aaacc07..06a9e41741 100644
--- a/lib/pacemaker/pcmk_scheduler.c
+++ b/lib/pacemaker/pcmk_scheduler.c
@@ -1,816 +1,816 @@
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <crm/crm.h>
#include <crm/cib.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/common/scheduler_internal.h>
#include <glib.h>
#include <crm/pengine/status.h>
#include <pacemaker-internal.h>
#include "libpacemaker_private.h"
CRM_TRACE_INIT_DATA(pacemaker);
/*!
* \internal
* \brief Do deferred action checks after assignment
*
* When unpacking the resource history, the scheduler checks for resource
* configurations that have changed since an action was run. However, at that
* time, bundles using the REMOTE_CONTAINER_HACK don't have their final
* parameter information, so instead they add a deferred check to a list. This
* function processes one entry in that list.
*
* \param[in,out] rsc Resource that action history is for
* \param[in,out] node Node that action history is for
* \param[in] rsc_op Action history entry
* \param[in] check Type of deferred check to do
*/
static void
check_params(pe_resource_t *rsc, pe_node_t *node, const xmlNode *rsc_op,
enum pcmk__check_parameters check)
{
const char *reason = NULL;
op_digest_cache_t *digest_data = NULL;
switch (check) {
case pcmk__check_active:
if (pcmk__check_action_config(rsc, node, rsc_op)
&& pe_get_failcount(node, rsc, NULL, pe_fc_effective, NULL)) {
reason = "action definition changed";
}
break;
case pcmk__check_last_failure:
digest_data = rsc_action_digest_cmp(rsc, rsc_op, node,
rsc->cluster);
switch (digest_data->rc) {
case RSC_DIGEST_UNKNOWN:
crm_trace("Resource %s history entry %s on %s has "
"no digest to compare",
rsc->id, ID(rsc_op), node->details->id);
break;
case RSC_DIGEST_MATCH:
break;
default:
reason = "resource parameters have changed";
break;
}
break;
}
if (reason != NULL) {
pe__clear_failcount(rsc, node, reason, rsc->cluster);
}
}
/*!
* \internal
* \brief Check whether a resource has failcount clearing scheduled on a node
*
* \param[in] node Node to check
* \param[in] rsc Resource to check
*
* \return true if \p rsc has failcount clearing scheduled on \p node,
* otherwise false
*/
static bool
failcount_clear_action_exists(const pe_node_t *node, const pe_resource_t *rsc)
{
GList *list = pe__resource_actions(rsc, node, PCMK_ACTION_CLEAR_FAILCOUNT,
TRUE);
if (list != NULL) {
g_list_free(list);
return true;
}
return false;
}
/*!
* \internal
* \brief Ban a resource from a node if it reached its failure threshold there
*
* \param[in,out] data Resource to check failure threshold for
* \param[in] user_data Node to check resource on
*/
static void
check_failure_threshold(gpointer data, gpointer user_data)
{
pe_resource_t *rsc = data;
const pe_node_t *node = user_data;
// If this is a collective resource, apply recursively to children instead
if (rsc->children != NULL) {
g_list_foreach(rsc->children, check_failure_threshold, user_data);
return;
}
if (!failcount_clear_action_exists(node, rsc)) {
/* Don't force the resource away from this node due to a failcount
* that's going to be cleared.
*
* @TODO Failcount clearing can be scheduled in
* pcmk__handle_rsc_config_changes() via process_rsc_history(), or in
* schedule_resource_actions() via check_params(). This runs well before
* then, so it cannot detect those, meaning we might check the migration
* threshold when we shouldn't. Worst case, we stop or move the
* resource, then move it back in the next transition.
*/
pe_resource_t *failed = NULL;
if (pcmk__threshold_reached(rsc, node, &failed)) {
resource_location(failed, node, -INFINITY, "__fail_limit__",
rsc->cluster);
}
}
}
/*!
* \internal
* \brief If resource has exclusive discovery, ban node if not allowed
*
* Location constraints have a resource-discovery option that allows users to
* specify where probes are done for the affected resource. If this is set to
* exclusive, probes will only be done on nodes listed in exclusive constraints.
* This function bans the resource from the node if the node is not listed.
*
* \param[in,out] data Resource to check
* \param[in] user_data Node to check resource on
*/
static void
apply_exclusive_discovery(gpointer data, gpointer user_data)
{
pe_resource_t *rsc = data;
const pe_node_t *node = user_data;
if (rsc->exclusive_discover
|| pe__const_top_resource(rsc, false)->exclusive_discover) {
pe_node_t *match = NULL;
// If this is a collective resource, apply recursively to children
g_list_foreach(rsc->children, apply_exclusive_discovery, user_data);
match = g_hash_table_lookup(rsc->allowed_nodes, node->details->id);
if ((match != NULL)
&& (match->rsc_discover_mode != pe_discover_exclusive)) {
match->weight = -INFINITY;
}
}
}
/*!
* \internal
* \brief Apply stickiness to a resource if appropriate
*
* \param[in,out] data Resource to check for stickiness
* \param[in] user_data Ignored
*/
static void
apply_stickiness(gpointer data, gpointer user_data)
{
pe_resource_t *rsc = data;
pe_node_t *node = NULL;
// If this is a collective resource, apply recursively to children instead
if (rsc->children != NULL) {
g_list_foreach(rsc->children, apply_stickiness, NULL);
return;
}
/* A resource is sticky if it is managed, has stickiness configured, and is
* active on a single node.
*/
if (!pcmk_is_set(rsc->flags, pe_rsc_managed)
|| (rsc->stickiness < 1) || !pcmk__list_of_1(rsc->running_on)) {
return;
}
node = rsc->running_on->data;
/* In a symmetric cluster, stickiness can always be used. In an
* asymmetric cluster, we have to check whether the resource is still
* allowed on the node, so we don't keep the resource somewhere it is no
* longer explicitly enabled.
*/
if (!pcmk_is_set(rsc->cluster->flags, pcmk_sched_symmetric_cluster)
&& (g_hash_table_lookup(rsc->allowed_nodes,
node->details->id) == NULL)) {
pe_rsc_debug(rsc,
"Ignoring %s stickiness because the cluster is "
"asymmetric and %s is not explicitly allowed",
rsc->id, pe__node_name(node));
return;
}
pe_rsc_debug(rsc, "Resource %s has %d stickiness on %s",
rsc->id, rsc->stickiness, pe__node_name(node));
resource_location(rsc, node, rsc->stickiness, "stickiness", rsc->cluster);
}
/*!
* \internal
* \brief Apply shutdown locks for all resources as appropriate
*
* \param[in,out] data_set Cluster working set
*/
static void
apply_shutdown_locks(pe_working_set_t *data_set)
{
if (!pcmk_is_set(data_set->flags, pcmk_sched_shutdown_lock)) {
return;
}
for (GList *iter = data_set->resources; iter != NULL; iter = iter->next) {
pe_resource_t *rsc = (pe_resource_t *) iter->data;
rsc->cmds->shutdown_lock(rsc);
}
}
/*!
* \internal
* \brief Calculate the number of available nodes in the cluster
*
* \param[in,out] data_set Cluster working set
*/
static void
count_available_nodes(pe_working_set_t *data_set)
{
if (pcmk_is_set(data_set->flags, pe_flag_no_compat)) {
return;
}
// @COMPAT for API backward compatibility only (cluster does not use value)
for (GList *iter = data_set->nodes; iter != NULL; iter = iter->next) {
pe_node_t *node = (pe_node_t *) iter->data;
if ((node != NULL) && (node->weight >= 0) && node->details->online
&& (node->details->type != node_ping)) {
data_set->max_valid_nodes++;
}
}
crm_trace("Online node count: %d", data_set->max_valid_nodes);
}
/*
* \internal
* \brief Apply node-specific scheduling criteria
*
* After the CIB has been unpacked, process node-specific scheduling criteria
* including shutdown locks, location constraints, resource stickiness,
* migration thresholds, and exclusive resource discovery.
*/
static void
apply_node_criteria(pe_working_set_t *data_set)
{
crm_trace("Applying node-specific scheduling criteria");
apply_shutdown_locks(data_set);
count_available_nodes(data_set);
pcmk__apply_locations(data_set);
g_list_foreach(data_set->resources, apply_stickiness, NULL);
for (GList *node_iter = data_set->nodes; node_iter != NULL;
node_iter = node_iter->next) {
for (GList *rsc_iter = data_set->resources; rsc_iter != NULL;
rsc_iter = rsc_iter->next) {
check_failure_threshold(rsc_iter->data, node_iter->data);
apply_exclusive_discovery(rsc_iter->data, node_iter->data);
}
}
}
/*!
* \internal
* \brief Assign resources to nodes
*
* \param[in,out] data_set Cluster working set
*/
static void
assign_resources(pe_working_set_t *data_set)
{
GList *iter = NULL;
crm_trace("Assigning resources to nodes");
if (!pcmk__str_eq(data_set->placement_strategy, "default",
pcmk__str_casei)) {
pcmk__sort_resources(data_set);
}
pcmk__show_node_capacities("Original", data_set);
if (pcmk_is_set(data_set->flags, pcmk_sched_have_remote_nodes)) {
/* Assign remote connection resources first (which will also assign any
* colocation dependencies). If the connection is migrating, always
* prefer the partial migration target.
*/
for (iter = data_set->resources; iter != NULL; iter = iter->next) {
pe_resource_t *rsc = (pe_resource_t *) iter->data;
if (rsc->is_remote_node) {
pe_rsc_trace(rsc, "Assigning remote connection resource '%s'",
rsc->id);
rsc->cmds->assign(rsc, rsc->partial_migration_target, true);
}
}
}
/* now do the rest of the resources */
for (iter = data_set->resources; iter != NULL; iter = iter->next) {
pe_resource_t *rsc = (pe_resource_t *) iter->data;
if (!rsc->is_remote_node) {
pe_rsc_trace(rsc, "Assigning %s resource '%s'",
rsc->xml->name, rsc->id);
rsc->cmds->assign(rsc, NULL, true);
}
}
pcmk__show_node_capacities("Remaining", data_set);
}
/*!
* \internal
* \brief Schedule fail count clearing on online nodes if resource is orphaned
*
* \param[in,out] data Resource to check
* \param[in] user_data Ignored
*/
static void
clear_failcounts_if_orphaned(gpointer data, gpointer user_data)
{
pe_resource_t *rsc = data;
if (!pcmk_is_set(rsc->flags, pe_rsc_orphan)) {
return;
}
crm_trace("Clear fail counts for orphaned resource %s", rsc->id);
/* There's no need to recurse into rsc->children because those
* should just be unassigned clone instances.
*/
for (GList *iter = rsc->cluster->nodes; iter != NULL; iter = iter->next) {
pe_node_t *node = (pe_node_t *) iter->data;
pe_action_t *clear_op = NULL;
if (!node->details->online) {
continue;
}
if (pe_get_failcount(node, rsc, NULL, pe_fc_effective, NULL) == 0) {
continue;
}
clear_op = pe__clear_failcount(rsc, node, "it is orphaned",
rsc->cluster);
/* We can't use order_action_then_stop() here because its
* pe_order_preserve breaks things
*/
pcmk__new_ordering(clear_op->rsc, NULL, clear_op, rsc, stop_key(rsc),
NULL, pe_order_optional, rsc->cluster);
}
}
/*!
* \internal
* \brief Schedule any resource actions needed
*
* \param[in,out] data_set Cluster working set
*/
static void
schedule_resource_actions(pe_working_set_t *data_set)
{
// Process deferred action checks
pe__foreach_param_check(data_set, check_params);
pe__free_param_checks(data_set);
if (pcmk_is_set(data_set->flags, pcmk_sched_probe_resources)) {
crm_trace("Scheduling probes");
pcmk__schedule_probes(data_set);
}
if (pcmk_is_set(data_set->flags, pcmk_sched_stop_removed_resources)) {
g_list_foreach(data_set->resources, clear_failcounts_if_orphaned, NULL);
}
crm_trace("Scheduling resource actions");
for (GList *iter = data_set->resources; iter != NULL; iter = iter->next) {
pe_resource_t *rsc = (pe_resource_t *) iter->data;
rsc->cmds->create_actions(rsc);
}
}
/*!
* \internal
* \brief Check whether a resource or any of its descendants are managed
*
* \param[in] rsc Resource to check
*
* \return true if resource or any descendant is managed, otherwise false
*/
static bool
is_managed(const pe_resource_t *rsc)
{
if (pcmk_is_set(rsc->flags, pe_rsc_managed)) {
return true;
}
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
if (is_managed((pe_resource_t *) iter->data)) {
return true;
}
}
return false;
}
/*!
* \internal
* \brief Check whether any resources in the cluster are managed
*
* \param[in] data_set Cluster working set
*
* \return true if any resource is managed, otherwise false
*/
static bool
any_managed_resources(const pe_working_set_t *data_set)
{
for (const GList *iter = data_set->resources;
iter != NULL; iter = iter->next) {
if (is_managed((const pe_resource_t *) iter->data)) {
return true;
}
}
return false;
}
/*!
* \internal
* \brief Check whether a node requires fencing
*
* \param[in] node Node to check
* \param[in] have_managed Whether any resource in cluster is managed
*
* \return true if \p node should be fenced, otherwise false
*/
static bool
needs_fencing(const pe_node_t *node, bool have_managed)
{
return have_managed && node->details->unclean
&& pe_can_fence(node->details->data_set, node);
}
/*!
* \internal
* \brief Check whether a node requires shutdown
*
* \param[in] node Node to check
*
* \return true if \p node should be shut down, otherwise false
*/
static bool
needs_shutdown(const pe_node_t *node)
{
if (pe__is_guest_or_remote_node(node)) {
/* Do not send shutdown actions for Pacemaker Remote nodes.
* @TODO We might come up with a good use for this in the future.
*/
return false;
}
return node->details->online && node->details->shutdown;
}
/*!
* \internal
* \brief Track and order non-DC fencing
*
* \param[in,out] list List of existing non-DC fencing actions
* \param[in,out] action Fencing action to prepend to \p list
* \param[in] data_set Cluster working set
*
* \return (Possibly new) head of \p list
*/
static GList *
add_nondc_fencing(GList *list, pe_action_t *action,
const pe_working_set_t *data_set)
{
if (!pcmk_is_set(data_set->flags, pcmk_sched_concurrent_fencing)
&& (list != NULL)) {
/* Concurrent fencing is disabled, so order each non-DC
* fencing in a chain. If there is any DC fencing or
* shutdown, it will be ordered after the last action in the
* chain later.
*/
order_actions((pe_action_t *) list->data, action, pe_order_optional);
}
return g_list_prepend(list, action);
}
/*!
* \internal
* \brief Schedule a node for fencing
*
* \param[in,out] node Node that requires fencing
*/
static pe_action_t *
schedule_fencing(pe_node_t *node)
{
pe_action_t *fencing = pe_fence_op(node, NULL, FALSE, "node is unclean",
FALSE, node->details->data_set);
pe_warn("Scheduling node %s for fencing", pe__node_name(node));
pcmk__order_vs_fence(fencing, node->details->data_set);
return fencing;
}
/*!
* \internal
* \brief Create and order node fencing and shutdown actions
*
* \param[in,out] data_set Cluster working set
*/
static void
schedule_fencing_and_shutdowns(pe_working_set_t *data_set)
{
pe_action_t *dc_down = NULL;
bool integrity_lost = false;
bool have_managed = any_managed_resources(data_set);
GList *fencing_ops = NULL;
GList *shutdown_ops = NULL;
crm_trace("Scheduling fencing and shutdowns as needed");
if (!have_managed) {
crm_notice("No fencing will be done until there are resources "
"to manage");
}
// Check each node for whether it needs fencing or shutdown
for (GList *iter = data_set->nodes; iter != NULL; iter = iter->next) {
pe_node_t *node = (pe_node_t *) iter->data;
pe_action_t *fencing = NULL;
/* Guest nodes are "fenced" by recovering their container resource,
* so handle them separately.
*/
if (pe__is_guest_node(node)) {
if (node->details->remote_requires_reset && have_managed
&& pe_can_fence(data_set, node)) {
pcmk__fence_guest(node);
}
continue;
}
if (needs_fencing(node, have_managed)) {
fencing = schedule_fencing(node);
// Track DC and non-DC fence actions separately
if (node->details->is_dc) {
dc_down = fencing;
} else {
fencing_ops = add_nondc_fencing(fencing_ops, fencing, data_set);
}
} else if (needs_shutdown(node)) {
pe_action_t *down_op = pcmk__new_shutdown_action(node);
// Track DC and non-DC shutdown actions separately
if (node->details->is_dc) {
dc_down = down_op;
} else {
shutdown_ops = g_list_prepend(shutdown_ops, down_op);
}
}
if ((fencing == NULL) && node->details->unclean) {
integrity_lost = true;
pe_warn("Node %s is unclean but cannot be fenced",
pe__node_name(node));
}
}
if (integrity_lost) {
if (!pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
pe_warn("Resource functionality and data integrity cannot be "
"guaranteed (configure, enable, and test fencing to "
"correct this)");
} else if (!pcmk_is_set(data_set->flags, pcmk_sched_quorate)) {
crm_notice("Unclean nodes will not be fenced until quorum is "
"attained or no-quorum-policy is set to ignore");
}
}
if (dc_down != NULL) {
/* Order any non-DC shutdowns before any DC shutdown, to avoid repeated
* DC elections. However, we don't want to order non-DC shutdowns before
* a DC *fencing*, because even though we don't want a node that's
* shutting down to become DC, the DC fencing could be ordered before a
* clone stop that's also ordered before the shutdowns, thus leading to
* a graph loop.
*/
if (pcmk__str_eq(dc_down->task, PCMK_ACTION_DO_SHUTDOWN,
pcmk__str_none)) {
pcmk__order_after_each(dc_down, shutdown_ops);
}
// Order any non-DC fencing before any DC fencing or shutdown
if (pcmk_is_set(data_set->flags, pcmk_sched_concurrent_fencing)) {
/* With concurrent fencing, order each non-DC fencing action
* separately before any DC fencing or shutdown.
*/
pcmk__order_after_each(dc_down, fencing_ops);
} else if (fencing_ops != NULL) {
/* Without concurrent fencing, the non-DC fencing actions are
* already ordered relative to each other, so we just need to order
* the DC fencing after the last action in the chain (which is the
* first item in the list).
*/
order_actions((pe_action_t *) fencing_ops->data, dc_down,
pe_order_optional);
}
}
g_list_free(fencing_ops);
g_list_free(shutdown_ops);
}
static void
log_resource_details(pe_working_set_t *data_set)
{
pcmk__output_t *out = data_set->priv;
GList *all = NULL;
/* Due to the `crm_mon --node=` feature, out->message() for all the
* resource-related messages expects a list of nodes that we are allowed to
* output information for. Here, we create a wildcard to match all nodes.
*/
all = g_list_prepend(all, (gpointer) "*");
for (GList *item = data_set->resources; item != NULL; item = item->next) {
pe_resource_t *rsc = (pe_resource_t *) item->data;
// Log all resources except inactive orphans
if (!pcmk_is_set(rsc->flags, pe_rsc_orphan)
|| (rsc->role != pcmk_role_stopped)) {
out->message(out, crm_map_element_name(rsc->xml), 0, rsc, all, all);
}
}
g_list_free(all);
}
static void
log_all_actions(pe_working_set_t *data_set)
{
/* This only ever outputs to the log, so ignore whatever output object was
* previously set and just log instead.
*/
pcmk__output_t *prev_out = data_set->priv;
pcmk__output_t *out = NULL;
if (pcmk__log_output_new(&out) != pcmk_rc_ok) {
return;
}
pe__register_messages(out);
pcmk__register_lib_messages(out);
pcmk__output_set_log_level(out, LOG_NOTICE);
data_set->priv = out;
out->begin_list(out, NULL, NULL, "Actions");
pcmk__output_actions(data_set);
out->end_list(out);
out->finish(out, CRM_EX_OK, true, NULL);
pcmk__output_free(out);
data_set->priv = prev_out;
}
/*!
* \internal
* \brief Log all required but unrunnable actions at trace level
*
* \param[in] data_set Cluster working set
*/
static void
log_unrunnable_actions(const pe_working_set_t *data_set)
{
const uint64_t flags = pe_action_optional
|pe_action_runnable
|pe_action_pseudo;
crm_trace("Required but unrunnable actions:");
for (const GList *iter = data_set->actions;
iter != NULL; iter = iter->next) {
const pe_action_t *action = (const pe_action_t *) iter->data;
if (!pcmk_any_flags_set(action->flags, flags)) {
pcmk__log_action("\t", action, true);
}
}
}
/*!
* \internal
* \brief Unpack the CIB for scheduling
*
* \param[in,out] cib CIB XML to unpack (may be NULL if already unpacked)
* \param[in] flags Working set flags to set in addition to defaults
* \param[in,out] data_set Cluster working set
*/
static void
unpack_cib(xmlNode *cib, unsigned long long flags, pe_working_set_t *data_set)
{
const char* localhost_save = NULL;
if (pcmk_is_set(data_set->flags, pcmk_sched_have_status)) {
crm_trace("Reusing previously calculated cluster status");
pe__set_working_set_flags(data_set, flags);
return;
}
if (data_set->localhost) {
localhost_save = data_set->localhost;
}
CRM_ASSERT(cib != NULL);
crm_trace("Calculating cluster status");
/* This will zero the entire struct without freeing anything first, so
* callers should never call pcmk__schedule_actions() with a populated data
* set unless pcmk_sched_have_status is set (i.e. cluster_status() was
* previously called, whether directly or via pcmk__schedule_actions()).
*/
set_working_set_defaults(data_set);
if (localhost_save) {
data_set->localhost = localhost_save;
}
pe__set_working_set_flags(data_set, flags);
data_set->input = cib;
cluster_status(data_set); // Sets pcmk_sched_have_status
}
/*!
* \internal
* \brief Run the scheduler for a given CIB
*
* \param[in,out] cib CIB XML to use as scheduler input
* \param[in] flags Working set flags to set in addition to defaults
* \param[in,out] data_set Cluster working set
*/
void
pcmk__schedule_actions(xmlNode *cib, unsigned long long flags,
pe_working_set_t *data_set)
{
unpack_cib(cib, flags, data_set);
pcmk__set_assignment_methods(data_set);
pcmk__apply_node_health(data_set);
pcmk__unpack_constraints(data_set);
if (pcmk_is_set(data_set->flags, pe_flag_check_config)) {
return;
}
- if (!pcmk_is_set(data_set->flags, pe_flag_quick_location) &&
- pcmk__is_daemon) {
+ if (!pcmk_is_set(data_set->flags, pcmk_sched_location_only)
+ && pcmk__is_daemon) {
log_resource_details(data_set);
}
apply_node_criteria(data_set);
- if (pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
+ if (pcmk_is_set(data_set->flags, pcmk_sched_location_only)) {
return;
}
pcmk__create_internal_constraints(data_set);
pcmk__handle_rsc_config_changes(data_set);
assign_resources(data_set);
schedule_resource_actions(data_set);
/* Remote ordering constraints need to happen prior to calculating fencing
* because it is one more place we can mark nodes as needing fencing.
*/
pcmk__order_remote_connection_actions(data_set);
schedule_fencing_and_shutdowns(data_set);
pcmk__apply_orderings(data_set);
log_all_actions(data_set);
pcmk__create_graph(data_set);
if (get_crm_log_level() == LOG_TRACE) {
log_unrunnable_actions(data_set);
}
}
diff --git a/lib/pengine/status.c b/lib/pengine/status.c
index 066c16a898..af19fe80db 100644
--- a/lib/pengine/status.c
+++ b/lib/pengine/status.c
@@ -1,483 +1,483 @@
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <sys/param.h>
#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <glib.h>
#include <crm/pengine/internal.h>
#include <pe_status_private.h>
/*!
* \brief Create a new working set
*
* \return New, initialized working set on success, else NULL (and set errno)
* \note Only pe_working_set_t objects created with this function (as opposed
* to statically declared or directly allocated) should be used with the
* functions in this library, to allow for future extensions to the
* data type. The caller is responsible for freeing the memory with
* pe_free_working_set() when the instance is no longer needed.
*/
pe_working_set_t *
pe_new_working_set(void)
{
pe_working_set_t *data_set = calloc(1, sizeof(pe_working_set_t));
if (data_set != NULL) {
set_working_set_defaults(data_set);
}
return data_set;
}
/*!
* \brief Free a working set
*
* \param[in,out] data_set Working set to free
*/
void
pe_free_working_set(pe_working_set_t *data_set)
{
if (data_set != NULL) {
pe_reset_working_set(data_set);
data_set->priv = NULL;
free(data_set);
}
}
/*
* Unpack everything
* At the end you'll have:
* - A list of nodes
* - A list of resources (each with any dependencies on other resources)
* - A list of constraints between resources and nodes
* - A list of constraints between start/stop actions
* - A list of nodes that need to be stonith'd
* - A list of nodes that need to be shutdown
* - A list of the possible stop/start actions (without dependencies)
*/
gboolean
cluster_status(pe_working_set_t * data_set)
{
xmlNode *section = NULL;
if ((data_set == NULL) || (data_set->input == NULL)) {
return FALSE;
}
crm_trace("Beginning unpack");
if (data_set->failed != NULL) {
free_xml(data_set->failed);
}
data_set->failed = create_xml_node(NULL, "failed-ops");
if (data_set->now == NULL) {
data_set->now = crm_time_new(NULL);
}
if (data_set->dc_uuid == NULL) {
data_set->dc_uuid = crm_element_value_copy(data_set->input,
XML_ATTR_DC_UUID);
}
if (pcmk__xe_attr_is_true(data_set->input, XML_ATTR_HAVE_QUORUM)) {
pe__set_working_set_flags(data_set, pcmk_sched_quorate);
} else {
pe__clear_working_set_flags(data_set, pcmk_sched_quorate);
}
data_set->op_defaults = get_xpath_object("//" XML_CIB_TAG_OPCONFIG,
data_set->input, LOG_NEVER);
data_set->rsc_defaults = get_xpath_object("//" XML_CIB_TAG_RSCCONFIG,
data_set->input, LOG_NEVER);
section = get_xpath_object("//" XML_CIB_TAG_CRMCONFIG, data_set->input,
LOG_TRACE);
unpack_config(section, data_set);
if (!pcmk_any_flags_set(data_set->flags,
- pe_flag_quick_location|pcmk_sched_quorate)
+ pcmk_sched_location_only|pcmk_sched_quorate)
&& (data_set->no_quorum_policy != pcmk_no_quorum_ignore)) {
crm_warn("Fencing and resource management disabled due to lack of quorum");
}
section = get_xpath_object("//" XML_CIB_TAG_NODES, data_set->input,
LOG_TRACE);
unpack_nodes(section, data_set);
section = get_xpath_object("//" XML_CIB_TAG_RESOURCES, data_set->input,
LOG_TRACE);
- if (!pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
+ if (!pcmk_is_set(data_set->flags, pcmk_sched_location_only)) {
unpack_remote_nodes(section, data_set);
}
unpack_resources(section, data_set);
section = get_xpath_object("//" XML_CIB_TAG_TAGS, data_set->input,
LOG_NEVER);
unpack_tags(section, data_set);
- if (!pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
+ if (!pcmk_is_set(data_set->flags, pcmk_sched_location_only)) {
section = get_xpath_object("//"XML_CIB_TAG_STATUS, data_set->input,
LOG_TRACE);
unpack_status(section, data_set);
}
if (!pcmk_is_set(data_set->flags, pe_flag_no_counts)) {
for (GList *item = data_set->resources; item != NULL;
item = item->next) {
((pe_resource_t *) (item->data))->fns->count(item->data);
}
crm_trace("Cluster resource count: %d (%d disabled, %d blocked)",
data_set->ninstances, data_set->disabled_resources,
data_set->blocked_resources);
}
pe__set_working_set_flags(data_set, pcmk_sched_have_status);
return TRUE;
}
/*!
* \internal
* \brief Free a list of pe_resource_t
*
* \param[in,out] resources List to free
*
* \note When a working set's resource list is freed, that includes the original
* storage for the uname and id of any Pacemaker Remote nodes in the
* working set's node list, so take care not to use those afterward.
* \todo Refactor pe_node_t to strdup() the node name.
*/
static void
pe_free_resources(GList *resources)
{
pe_resource_t *rsc = NULL;
GList *iterator = resources;
while (iterator != NULL) {
rsc = (pe_resource_t *) iterator->data;
iterator = iterator->next;
rsc->fns->free(rsc);
}
if (resources != NULL) {
g_list_free(resources);
}
}
static void
pe_free_actions(GList *actions)
{
GList *iterator = actions;
while (iterator != NULL) {
pe_free_action(iterator->data);
iterator = iterator->next;
}
if (actions != NULL) {
g_list_free(actions);
}
}
static void
pe_free_nodes(GList *nodes)
{
for (GList *iterator = nodes; iterator != NULL; iterator = iterator->next) {
pe_node_t *node = (pe_node_t *) iterator->data;
// Shouldn't be possible, but to be safe ...
if (node == NULL) {
continue;
}
if (node->details == NULL) {
free(node);
continue;
}
/* This is called after pe_free_resources(), which means that we can't
* use node->details->uname for Pacemaker Remote nodes.
*/
crm_trace("Freeing node %s", (pe__is_guest_or_remote_node(node)?
"(guest or remote)" : pe__node_name(node)));
if (node->details->attrs != NULL) {
g_hash_table_destroy(node->details->attrs);
}
if (node->details->utilization != NULL) {
g_hash_table_destroy(node->details->utilization);
}
if (node->details->digest_cache != NULL) {
g_hash_table_destroy(node->details->digest_cache);
}
g_list_free(node->details->running_rsc);
g_list_free(node->details->allocated_rsc);
free(node->details);
free(node);
}
if (nodes != NULL) {
g_list_free(nodes);
}
}
static void
pe__free_ordering(GList *constraints)
{
GList *iterator = constraints;
while (iterator != NULL) {
pe__ordering_t *order = iterator->data;
iterator = iterator->next;
free(order->lh_action_task);
free(order->rh_action_task);
free(order);
}
if (constraints != NULL) {
g_list_free(constraints);
}
}
static void
pe__free_location(GList *constraints)
{
GList *iterator = constraints;
while (iterator != NULL) {
pe__location_t *cons = iterator->data;
iterator = iterator->next;
g_list_free_full(cons->node_list_rh, free);
free(cons->id);
free(cons);
}
if (constraints != NULL) {
g_list_free(constraints);
}
}
/*!
* \brief Reset working set to default state without freeing it or constraints
*
* \param[in,out] data_set Working set to reset
*
* \deprecated This function is deprecated as part of the API;
* pe_reset_working_set() should be used instead.
*/
void
cleanup_calculations(pe_working_set_t * data_set)
{
if (data_set == NULL) {
return;
}
pe__clear_working_set_flags(data_set, pcmk_sched_have_status);
if (data_set->config_hash != NULL) {
g_hash_table_destroy(data_set->config_hash);
}
if (data_set->singletons != NULL) {
g_hash_table_destroy(data_set->singletons);
}
if (data_set->tickets) {
g_hash_table_destroy(data_set->tickets);
}
if (data_set->template_rsc_sets) {
g_hash_table_destroy(data_set->template_rsc_sets);
}
if (data_set->tags) {
g_hash_table_destroy(data_set->tags);
}
free(data_set->dc_uuid);
crm_trace("deleting resources");
pe_free_resources(data_set->resources);
crm_trace("deleting actions");
pe_free_actions(data_set->actions);
crm_trace("deleting nodes");
pe_free_nodes(data_set->nodes);
pe__free_param_checks(data_set);
g_list_free(data_set->stop_needed);
free_xml(data_set->graph);
crm_time_free(data_set->now);
free_xml(data_set->input);
free_xml(data_set->failed);
set_working_set_defaults(data_set);
CRM_CHECK(data_set->ordering_constraints == NULL,;
);
CRM_CHECK(data_set->placement_constraints == NULL,;
);
}
/*!
* \brief Reset a working set to default state without freeing it
*
* \param[in,out] data_set Working set to reset
*/
void
pe_reset_working_set(pe_working_set_t *data_set)
{
if (data_set == NULL) {
return;
}
crm_trace("Deleting %d ordering constraints",
g_list_length(data_set->ordering_constraints));
pe__free_ordering(data_set->ordering_constraints);
data_set->ordering_constraints = NULL;
crm_trace("Deleting %d location constraints",
g_list_length(data_set->placement_constraints));
pe__free_location(data_set->placement_constraints);
data_set->placement_constraints = NULL;
crm_trace("Deleting %d colocation constraints",
g_list_length(data_set->colocation_constraints));
g_list_free_full(data_set->colocation_constraints, free);
data_set->colocation_constraints = NULL;
crm_trace("Deleting %d ticket constraints",
g_list_length(data_set->ticket_constraints));
g_list_free_full(data_set->ticket_constraints, free);
data_set->ticket_constraints = NULL;
cleanup_calculations(data_set);
}
void
set_working_set_defaults(pe_working_set_t * data_set)
{
void *priv = data_set->priv;
memset(data_set, 0, sizeof(pe_working_set_t));
data_set->priv = priv;
data_set->order_id = 1;
data_set->action_id = 1;
data_set->no_quorum_policy = pcmk_no_quorum_stop;
data_set->flags = 0x0ULL;
pe__set_working_set_flags(data_set,
pcmk_sched_symmetric_cluster
|pcmk_sched_stop_removed_resources
|pcmk_sched_cancel_removed_actions);
if (!strcmp(PCMK__CONCURRENT_FENCING_DEFAULT, "true")) {
pe__set_working_set_flags(data_set, pcmk_sched_concurrent_fencing);
}
}
pe_resource_t *
pe_find_resource(GList *rsc_list, const char *id)
{
return pe_find_resource_with_flags(rsc_list, id, pcmk_rsc_match_history);
}
pe_resource_t *
pe_find_resource_with_flags(GList *rsc_list, const char *id, enum pe_find flags)
{
GList *rIter = NULL;
for (rIter = rsc_list; id && rIter; rIter = rIter->next) {
pe_resource_t *parent = rIter->data;
pe_resource_t *match =
parent->fns->find_rsc(parent, id, NULL, flags);
if (match != NULL) {
return match;
}
}
crm_trace("No match for %s", id);
return NULL;
}
/*!
* \brief Find a node by name or ID in a list of nodes
*
* \param[in] nodes List of nodes (as pe_node_t*)
* \param[in] id If not NULL, ID of node to find
* \param[in] node_name If not NULL, name of node to find
*
* \return Node from \p nodes that matches \p id if any,
* otherwise node from \p nodes that matches \p uname if any,
* otherwise NULL
*/
pe_node_t *
pe_find_node_any(const GList *nodes, const char *id, const char *uname)
{
pe_node_t *match = NULL;
if (id != NULL) {
match = pe_find_node_id(nodes, id);
}
if ((match == NULL) && (uname != NULL)) {
match = pe_find_node(nodes, uname);
}
return match;
}
/*!
* \brief Find a node by ID in a list of nodes
*
* \param[in] nodes List of nodes (as pe_node_t*)
* \param[in] id ID of node to find
*
* \return Node from \p nodes that matches \p id if any, otherwise NULL
*/
pe_node_t *
pe_find_node_id(const GList *nodes, const char *id)
{
for (const GList *iter = nodes; iter != NULL; iter = iter->next) {
pe_node_t *node = (pe_node_t *) iter->data;
/* @TODO Whether node IDs should be considered case-sensitive should
* probably depend on the node type, so functionizing the comparison
* would be worthwhile
*/
if (pcmk__str_eq(node->details->id, id, pcmk__str_casei)) {
return node;
}
}
return NULL;
}
/*!
* \brief Find a node by name in a list of nodes
*
* \param[in] nodes List of nodes (as pe_node_t*)
* \param[in] node_name Name of node to find
*
* \return Node from \p nodes that matches \p node_name if any, otherwise NULL
*/
pe_node_t *
pe_find_node(const GList *nodes, const char *node_name)
{
for (const GList *iter = nodes; iter != NULL; iter = iter->next) {
pe_node_t *node = (pe_node_t *) iter->data;
if (pcmk__str_eq(node->details->uname, node_name, pcmk__str_casei)) {
return node;
}
}
return NULL;
}
diff --git a/lib/pengine/unpack.c b/lib/pengine/unpack.c
index 7f3db2fd5d..a01c90a308 100644
--- a/lib/pengine/unpack.c
+++ b/lib/pengine/unpack.c
@@ -1,4953 +1,4953 @@
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include <time.h>
#include <crm/crm.h>
#include <crm/services.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/common/util.h>
#include <crm/pengine/rules.h>
#include <crm/pengine/internal.h>
#include <pe_status_private.h>
CRM_TRACE_INIT_DATA(pe_status);
// A (parsed) resource action history entry
struct action_history {
pe_resource_t *rsc; // Resource that history is for
pe_node_t *node; // Node that history is for
xmlNode *xml; // History entry XML
// Parsed from entry XML
const char *id; // XML ID of history entry
const char *key; // Operation key of action
const char *task; // Action name
const char *exit_reason; // Exit reason given for result
guint interval_ms; // Action interval
int call_id; // Call ID of action
int expected_exit_status; // Expected exit status of action
int exit_status; // Actual exit status of action
int execution_status; // Execution status of action
};
/* This uses pcmk__set_flags_as()/pcmk__clear_flags_as() directly rather than
* use pe__set_working_set_flags()/pe__clear_working_set_flags() so that the
* flag is stringified more readably in log messages.
*/
#define set_config_flag(data_set, option, flag) do { \
const char *scf_value = pe_pref((data_set)->config_hash, (option)); \
if (scf_value != NULL) { \
if (crm_is_true(scf_value)) { \
(data_set)->flags = pcmk__set_flags_as(__func__, __LINE__, \
LOG_TRACE, "Working set", \
crm_system_name, (data_set)->flags, \
(flag), #flag); \
} else { \
(data_set)->flags = pcmk__clear_flags_as(__func__, __LINE__,\
LOG_TRACE, "Working set", \
crm_system_name, (data_set)->flags, \
(flag), #flag); \
} \
} \
} while(0)
static void unpack_rsc_op(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
xmlNode **last_failure,
enum action_fail_response *failed);
static void determine_remote_online_status(pe_working_set_t *data_set,
pe_node_t *this_node);
static void add_node_attrs(const xmlNode *xml_obj, pe_node_t *node,
bool overwrite, pe_working_set_t *data_set);
static void determine_online_status(const xmlNode *node_state,
pe_node_t *this_node,
pe_working_set_t *data_set);
static void unpack_node_lrm(pe_node_t *node, const xmlNode *xml,
pe_working_set_t *data_set);
// Bitmask for warnings we only want to print once
uint32_t pe_wo = 0;
static gboolean
is_dangling_guest_node(pe_node_t *node)
{
/* we are looking for a remote-node that was supposed to be mapped to a
* container resource, but all traces of that container have disappeared
* from both the config and the status section. */
if (pe__is_guest_or_remote_node(node) &&
node->details->remote_rsc &&
node->details->remote_rsc->container == NULL &&
pcmk_is_set(node->details->remote_rsc->flags,
pe_rsc_orphan_container_filler)) {
return TRUE;
}
return FALSE;
}
/*!
* \brief Schedule a fence action for a node
*
* \param[in,out] data_set Current working set of cluster
* \param[in,out] node Node to fence
* \param[in] reason Text description of why fencing is needed
* \param[in] priority_delay Whether to consider `priority-fencing-delay`
*/
void
pe_fence_node(pe_working_set_t * data_set, pe_node_t * node,
const char *reason, bool priority_delay)
{
CRM_CHECK(node, return);
/* A guest node is fenced by marking its container as failed */
if (pe__is_guest_node(node)) {
pe_resource_t *rsc = node->details->remote_rsc->container;
if (!pcmk_is_set(rsc->flags, pe_rsc_failed)) {
if (!pcmk_is_set(rsc->flags, pe_rsc_managed)) {
crm_notice("Not fencing guest node %s "
"(otherwise would because %s): "
"its guest resource %s is unmanaged",
pe__node_name(node), reason, rsc->id);
} else {
crm_warn("Guest node %s will be fenced "
"(by recovering its guest resource %s): %s",
pe__node_name(node), rsc->id, reason);
/* We don't mark the node as unclean because that would prevent the
* node from running resources. We want to allow it to run resources
* in this transition if the recovery succeeds.
*/
node->details->remote_requires_reset = TRUE;
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
}
}
} else if (is_dangling_guest_node(node)) {
crm_info("Cleaning up dangling connection for guest node %s: "
"fencing was already done because %s, "
"and guest resource no longer exists",
pe__node_name(node), reason);
pe__set_resource_flags(node->details->remote_rsc,
pe_rsc_failed|pe_rsc_stop);
} else if (pe__is_remote_node(node)) {
pe_resource_t *rsc = node->details->remote_rsc;
if ((rsc != NULL) && !pcmk_is_set(rsc->flags, pe_rsc_managed)) {
crm_notice("Not fencing remote node %s "
"(otherwise would because %s): connection is unmanaged",
pe__node_name(node), reason);
} else if(node->details->remote_requires_reset == FALSE) {
node->details->remote_requires_reset = TRUE;
crm_warn("Remote node %s %s: %s",
pe__node_name(node),
pe_can_fence(data_set, node)? "will be fenced" : "is unclean",
reason);
}
node->details->unclean = TRUE;
// No need to apply `priority-fencing-delay` for remote nodes
pe_fence_op(node, NULL, TRUE, reason, FALSE, data_set);
} else if (node->details->unclean) {
crm_trace("Cluster node %s %s because %s",
pe__node_name(node),
pe_can_fence(data_set, node)? "would also be fenced" : "also is unclean",
reason);
} else {
crm_warn("Cluster node %s %s: %s",
pe__node_name(node),
pe_can_fence(data_set, node)? "will be fenced" : "is unclean",
reason);
node->details->unclean = TRUE;
pe_fence_op(node, NULL, TRUE, reason, priority_delay, data_set);
}
}
// @TODO xpaths can't handle templates, rules, or id-refs
// nvpair with provides or requires set to unfencing
#define XPATH_UNFENCING_NVPAIR XML_CIB_TAG_NVPAIR \
"[(@" XML_NVPAIR_ATTR_NAME "='" PCMK_STONITH_PROVIDES "'" \
"or @" XML_NVPAIR_ATTR_NAME "='" XML_RSC_ATTR_REQUIRES "') " \
"and @" XML_NVPAIR_ATTR_VALUE "='" PCMK__VALUE_UNFENCING "']"
// unfencing in rsc_defaults or any resource
#define XPATH_ENABLE_UNFENCING \
"/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_RESOURCES \
"//" XML_TAG_META_SETS "/" XPATH_UNFENCING_NVPAIR \
"|/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_RSCCONFIG \
"/" XML_TAG_META_SETS "/" XPATH_UNFENCING_NVPAIR
static void
set_if_xpath(uint64_t flag, const char *xpath, pe_working_set_t *data_set)
{
xmlXPathObjectPtr result = NULL;
if (!pcmk_is_set(data_set->flags, flag)) {
result = xpath_search(data_set->input, xpath);
if (result && (numXpathResults(result) > 0)) {
pe__set_working_set_flags(data_set, flag);
}
freeXpathObject(result);
}
}
gboolean
unpack_config(xmlNode * config, pe_working_set_t * data_set)
{
const char *value = NULL;
GHashTable *config_hash = pcmk__strkey_table(free, free);
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = pcmk_role_unknown,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
data_set->config_hash = config_hash;
pe__unpack_dataset_nvpairs(config, XML_CIB_TAG_PROPSET, &rule_data, config_hash,
CIB_OPTIONS_FIRST, FALSE, data_set);
verify_pe_options(data_set->config_hash);
set_config_flag(data_set, "enable-startup-probes",
pcmk_sched_probe_resources);
if (!pcmk_is_set(data_set->flags, pcmk_sched_probe_resources)) {
crm_info("Startup probes: disabled (dangerous)");
}
value = pe_pref(data_set->config_hash, XML_ATTR_HAVE_WATCHDOG);
if (value && crm_is_true(value)) {
crm_info("Watchdog-based self-fencing will be performed via SBD if "
"fencing is required and stonith-watchdog-timeout is nonzero");
pe__set_working_set_flags(data_set, pcmk_sched_have_fencing);
}
/* Set certain flags via xpath here, so they can be used before the relevant
* configuration sections are unpacked.
*/
set_if_xpath(pcmk_sched_enable_unfencing, XPATH_ENABLE_UNFENCING, data_set);
value = pe_pref(data_set->config_hash, "stonith-timeout");
data_set->stonith_timeout = (int) crm_parse_interval_spec(value);
crm_debug("STONITH timeout: %d", data_set->stonith_timeout);
set_config_flag(data_set, "stonith-enabled", pcmk_sched_fencing_enabled);
if (pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
crm_debug("STONITH of failed nodes is enabled");
} else {
crm_debug("STONITH of failed nodes is disabled");
}
data_set->stonith_action = pe_pref(data_set->config_hash, "stonith-action");
if (!strcmp(data_set->stonith_action, "poweroff")) {
pe_warn_once(pe_wo_poweroff,
"Support for stonith-action of 'poweroff' is deprecated "
"and will be removed in a future release (use 'off' instead)");
data_set->stonith_action = PCMK_ACTION_OFF;
}
crm_trace("STONITH will %s nodes", data_set->stonith_action);
set_config_flag(data_set, "concurrent-fencing",
pcmk_sched_concurrent_fencing);
if (pcmk_is_set(data_set->flags, pcmk_sched_concurrent_fencing)) {
crm_debug("Concurrent fencing is enabled");
} else {
crm_debug("Concurrent fencing is disabled");
}
value = pe_pref(data_set->config_hash,
XML_CONFIG_ATTR_PRIORITY_FENCING_DELAY);
if (value) {
data_set->priority_fencing_delay = crm_parse_interval_spec(value) / 1000;
crm_trace("Priority fencing delay is %ds", data_set->priority_fencing_delay);
}
set_config_flag(data_set, "stop-all-resources", pcmk_sched_stop_all);
crm_debug("Stop all active resources: %s",
pcmk__btoa(pcmk_is_set(data_set->flags, pcmk_sched_stop_all)));
set_config_flag(data_set, "symmetric-cluster",
pcmk_sched_symmetric_cluster);
if (pcmk_is_set(data_set->flags, pcmk_sched_symmetric_cluster)) {
crm_debug("Cluster is symmetric" " - resources can run anywhere by default");
}
value = pe_pref(data_set->config_hash, "no-quorum-policy");
if (pcmk__str_eq(value, "ignore", pcmk__str_casei)) {
data_set->no_quorum_policy = pcmk_no_quorum_ignore;
} else if (pcmk__str_eq(value, "freeze", pcmk__str_casei)) {
data_set->no_quorum_policy = pcmk_no_quorum_freeze;
} else if (pcmk__str_eq(value, "demote", pcmk__str_casei)) {
data_set->no_quorum_policy = pcmk_no_quorum_demote;
} else if (pcmk__str_eq(value, "suicide", pcmk__str_casei)) {
if (pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
int do_panic = 0;
crm_element_value_int(data_set->input, XML_ATTR_QUORUM_PANIC,
&do_panic);
if (do_panic || pcmk_is_set(data_set->flags, pcmk_sched_quorate)) {
data_set->no_quorum_policy = pcmk_no_quorum_fence;
} else {
crm_notice("Resetting no-quorum-policy to 'stop': cluster has never had quorum");
data_set->no_quorum_policy = pcmk_no_quorum_stop;
}
} else {
pcmk__config_err("Resetting no-quorum-policy to 'stop' because "
"fencing is disabled");
data_set->no_quorum_policy = pcmk_no_quorum_stop;
}
} else {
data_set->no_quorum_policy = pcmk_no_quorum_stop;
}
switch (data_set->no_quorum_policy) {
case pcmk_no_quorum_freeze:
crm_debug("On loss of quorum: Freeze resources");
break;
case pcmk_no_quorum_stop:
crm_debug("On loss of quorum: Stop ALL resources");
break;
case pcmk_no_quorum_demote:
crm_debug("On loss of quorum: "
"Demote promotable resources and stop other resources");
break;
case pcmk_no_quorum_fence:
crm_notice("On loss of quorum: Fence all remaining nodes");
break;
case pcmk_no_quorum_ignore:
crm_notice("On loss of quorum: Ignore");
break;
}
set_config_flag(data_set, "stop-orphan-resources",
pcmk_sched_stop_removed_resources);
if (pcmk_is_set(data_set->flags, pcmk_sched_stop_removed_resources)) {
crm_trace("Orphan resources are stopped");
} else {
crm_trace("Orphan resources are ignored");
}
set_config_flag(data_set, "stop-orphan-actions",
pcmk_sched_cancel_removed_actions);
if (pcmk_is_set(data_set->flags, pcmk_sched_cancel_removed_actions)) {
crm_trace("Orphan resource actions are stopped");
} else {
crm_trace("Orphan resource actions are ignored");
}
value = pe_pref(data_set->config_hash, "remove-after-stop");
if (value != NULL) {
if (crm_is_true(value)) {
pe__set_working_set_flags(data_set, pcmk_sched_remove_after_stop);
#ifndef PCMK__COMPAT_2_0
pe_warn_once(pe_wo_remove_after,
"Support for the remove-after-stop cluster property is"
" deprecated and will be removed in a future release");
#endif
} else {
pe__clear_working_set_flags(data_set, pcmk_sched_remove_after_stop);
}
}
set_config_flag(data_set, "maintenance-mode", pcmk_sched_in_maintenance);
crm_trace("Maintenance mode: %s",
pcmk__btoa(pcmk_is_set(data_set->flags,
pcmk_sched_in_maintenance)));
set_config_flag(data_set, "start-failure-is-fatal",
pcmk_sched_start_failure_fatal);
if (pcmk_is_set(data_set->flags, pcmk_sched_start_failure_fatal)) {
crm_trace("Start failures are always fatal");
} else {
crm_trace("Start failures are handled by failcount");
}
if (pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
set_config_flag(data_set, "startup-fencing",
pcmk_sched_startup_fencing);
}
if (pcmk_is_set(data_set->flags, pcmk_sched_startup_fencing)) {
crm_trace("Unseen nodes will be fenced");
} else {
pe_warn_once(pe_wo_blind, "Blind faith: not fencing unseen nodes");
}
pe__unpack_node_health_scores(data_set);
data_set->placement_strategy = pe_pref(data_set->config_hash, "placement-strategy");
crm_trace("Placement strategy: %s", data_set->placement_strategy);
set_config_flag(data_set, "shutdown-lock", pcmk_sched_shutdown_lock);
if (pcmk_is_set(data_set->flags, pcmk_sched_shutdown_lock)) {
value = pe_pref(data_set->config_hash,
XML_CONFIG_ATTR_SHUTDOWN_LOCK_LIMIT);
data_set->shutdown_lock = crm_parse_interval_spec(value) / 1000;
crm_trace("Resources will be locked to nodes that were cleanly "
"shut down (locks expire after %s)",
pcmk__readable_interval(data_set->shutdown_lock));
} else {
crm_trace("Resources will not be locked to nodes that were cleanly "
"shut down");
}
value = pe_pref(data_set->config_hash,
XML_CONFIG_ATTR_NODE_PENDING_TIMEOUT);
data_set->node_pending_timeout = crm_parse_interval_spec(value) / 1000;
crm_trace("Node pending timeout is %us", data_set->node_pending_timeout);
return TRUE;
}
pe_node_t *
pe_create_node(const char *id, const char *uname, const char *type,
const char *score, pe_working_set_t * data_set)
{
pe_node_t *new_node = NULL;
if (pe_find_node(data_set->nodes, uname) != NULL) {
pcmk__config_warn("More than one node entry has name '%s'", uname);
}
new_node = calloc(1, sizeof(pe_node_t));
if (new_node == NULL) {
return NULL;
}
new_node->weight = char2score(score);
new_node->details = calloc(1, sizeof(struct pe_node_shared_s));
if (new_node->details == NULL) {
free(new_node);
return NULL;
}
crm_trace("Creating node for entry %s/%s", uname, id);
new_node->details->id = id;
new_node->details->uname = uname;
new_node->details->online = FALSE;
new_node->details->shutdown = FALSE;
new_node->details->rsc_discovery_enabled = TRUE;
new_node->details->running_rsc = NULL;
new_node->details->data_set = data_set;
if (pcmk__str_eq(type, "member", pcmk__str_null_matches | pcmk__str_casei)) {
new_node->details->type = pcmk_node_variant_cluster;
} else if (pcmk__str_eq(type, "remote", pcmk__str_casei)) {
new_node->details->type = pcmk_node_variant_remote;
pe__set_working_set_flags(data_set, pcmk_sched_have_remote_nodes);
} else {
/* @COMPAT 'ping' is the default for backward compatibility, but it
* should be changed to 'member' at a compatibility break
*/
if (!pcmk__str_eq(type, "ping", pcmk__str_casei)) {
pcmk__config_warn("Node %s has unrecognized type '%s', "
"assuming 'ping'", pcmk__s(uname, "without name"),
type);
}
pe_warn_once(pe_wo_ping_node,
"Support for nodes of type 'ping' (such as %s) is "
"deprecated and will be removed in a future release",
pcmk__s(uname, "unnamed node"));
new_node->details->type = node_ping;
}
new_node->details->attrs = pcmk__strkey_table(free, free);
if (pe__is_guest_or_remote_node(new_node)) {
g_hash_table_insert(new_node->details->attrs, strdup(CRM_ATTR_KIND),
strdup("remote"));
} else {
g_hash_table_insert(new_node->details->attrs, strdup(CRM_ATTR_KIND),
strdup("cluster"));
}
new_node->details->utilization = pcmk__strkey_table(free, free);
new_node->details->digest_cache = pcmk__strkey_table(free,
pe__free_digests);
data_set->nodes = g_list_insert_sorted(data_set->nodes, new_node,
pe__cmp_node_name);
return new_node;
}
static const char *
expand_remote_rsc_meta(xmlNode *xml_obj, xmlNode *parent, pe_working_set_t *data)
{
xmlNode *attr_set = NULL;
xmlNode *attr = NULL;
const char *container_id = ID(xml_obj);
const char *remote_name = NULL;
const char *remote_server = NULL;
const char *remote_port = NULL;
const char *connect_timeout = "60s";
const char *remote_allow_migrate=NULL;
const char *is_managed = NULL;
for (attr_set = pcmk__xe_first_child(xml_obj); attr_set != NULL;
attr_set = pcmk__xe_next(attr_set)) {
if (!pcmk__str_eq((const char *)attr_set->name, XML_TAG_META_SETS,
pcmk__str_casei)) {
continue;
}
for (attr = pcmk__xe_first_child(attr_set); attr != NULL;
attr = pcmk__xe_next(attr)) {
const char *value = crm_element_value(attr, XML_NVPAIR_ATTR_VALUE);
const char *name = crm_element_value(attr, XML_NVPAIR_ATTR_NAME);
if (pcmk__str_eq(name, XML_RSC_ATTR_REMOTE_NODE, pcmk__str_casei)) {
remote_name = value;
} else if (pcmk__str_eq(name, "remote-addr", pcmk__str_casei)) {
remote_server = value;
} else if (pcmk__str_eq(name, "remote-port", pcmk__str_casei)) {
remote_port = value;
} else if (pcmk__str_eq(name, "remote-connect-timeout", pcmk__str_casei)) {
connect_timeout = value;
} else if (pcmk__str_eq(name, "remote-allow-migrate", pcmk__str_casei)) {
remote_allow_migrate=value;
} else if (pcmk__str_eq(name, XML_RSC_ATTR_MANAGED, pcmk__str_casei)) {
is_managed = value;
}
}
}
if (remote_name == NULL) {
return NULL;
}
if (pe_find_resource(data->resources, remote_name) != NULL) {
return NULL;
}
pe_create_remote_xml(parent, remote_name, container_id,
remote_allow_migrate, is_managed,
connect_timeout, remote_server, remote_port);
return remote_name;
}
static void
handle_startup_fencing(pe_working_set_t *data_set, pe_node_t *new_node)
{
if ((new_node->details->type == pcmk_node_variant_remote)
&& (new_node->details->remote_rsc == NULL)) {
/* Ignore fencing for remote nodes that don't have a connection resource
* associated with them. This happens when remote node entries get left
* in the nodes section after the connection resource is removed.
*/
return;
}
if (pcmk_is_set(data_set->flags, pcmk_sched_startup_fencing)) {
// All nodes are unclean until we've seen their status entry
new_node->details->unclean = TRUE;
} else {
// Blind faith ...
new_node->details->unclean = FALSE;
}
/* We need to be able to determine if a node's status section
* exists or not separate from whether the node is unclean. */
new_node->details->unseen = TRUE;
}
gboolean
unpack_nodes(xmlNode * xml_nodes, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
pe_node_t *new_node = NULL;
const char *id = NULL;
const char *uname = NULL;
const char *type = NULL;
const char *score = NULL;
for (xml_obj = pcmk__xe_first_child(xml_nodes); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_NODE, pcmk__str_none)) {
new_node = NULL;
id = crm_element_value(xml_obj, XML_ATTR_ID);
uname = crm_element_value(xml_obj, XML_ATTR_UNAME);
type = crm_element_value(xml_obj, XML_ATTR_TYPE);
score = crm_element_value(xml_obj, XML_RULE_ATTR_SCORE);
crm_trace("Processing node %s/%s", uname, id);
if (id == NULL) {
pcmk__config_err("Ignoring <" XML_CIB_TAG_NODE
"> entry in configuration without id");
continue;
}
new_node = pe_create_node(id, uname, type, score, data_set);
if (new_node == NULL) {
return FALSE;
}
handle_startup_fencing(data_set, new_node);
add_node_attrs(xml_obj, new_node, FALSE, data_set);
crm_trace("Done with node %s", crm_element_value(xml_obj, XML_ATTR_UNAME));
}
}
if (data_set->localhost && pe_find_node(data_set->nodes, data_set->localhost) == NULL) {
crm_info("Creating a fake local node");
pe_create_node(data_set->localhost, data_set->localhost, NULL, 0,
data_set);
}
return TRUE;
}
static void
setup_container(pe_resource_t * rsc, pe_working_set_t * data_set)
{
const char *container_id = NULL;
if (rsc->children) {
g_list_foreach(rsc->children, (GFunc) setup_container, data_set);
return;
}
container_id = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_CONTAINER);
if (container_id && !pcmk__str_eq(container_id, rsc->id, pcmk__str_casei)) {
pe_resource_t *container = pe_find_resource(data_set->resources, container_id);
if (container) {
rsc->container = container;
pe__set_resource_flags(container, pe_rsc_is_container);
container->fillers = g_list_append(container->fillers, rsc);
pe_rsc_trace(rsc, "Resource %s's container is %s", rsc->id, container_id);
} else {
pe_err("Resource %s: Unknown resource container (%s)", rsc->id, container_id);
}
}
}
gboolean
unpack_remote_nodes(xmlNode * xml_resources, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
/* Create remote nodes and guest nodes from the resource configuration
* before unpacking resources.
*/
for (xml_obj = pcmk__xe_first_child(xml_resources); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
const char *new_node_id = NULL;
/* Check for remote nodes, which are defined by ocf:pacemaker:remote
* primitives.
*/
if (xml_contains_remote_node(xml_obj)) {
new_node_id = ID(xml_obj);
/* The "pe_find_node" check is here to make sure we don't iterate over
* an expanded node that has already been added to the node list. */
if (new_node_id && pe_find_node(data_set->nodes, new_node_id) == NULL) {
crm_trace("Found remote node %s defined by resource %s",
new_node_id, ID(xml_obj));
pe_create_node(new_node_id, new_node_id, "remote", NULL,
data_set);
}
continue;
}
/* Check for guest nodes, which are defined by special meta-attributes
* of a primitive of any type (for example, VirtualDomain or Xen).
*/
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_RESOURCE, pcmk__str_none)) {
/* This will add an ocf:pacemaker:remote primitive to the
* configuration for the guest node's connection, to be unpacked
* later.
*/
new_node_id = expand_remote_rsc_meta(xml_obj, xml_resources, data_set);
if (new_node_id && pe_find_node(data_set->nodes, new_node_id) == NULL) {
crm_trace("Found guest node %s in resource %s",
new_node_id, ID(xml_obj));
pe_create_node(new_node_id, new_node_id, "remote", NULL,
data_set);
}
continue;
}
/* Check for guest nodes inside a group. Clones are currently not
* supported as guest nodes.
*/
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_GROUP, pcmk__str_none)) {
xmlNode *xml_obj2 = NULL;
for (xml_obj2 = pcmk__xe_first_child(xml_obj); xml_obj2 != NULL;
xml_obj2 = pcmk__xe_next(xml_obj2)) {
new_node_id = expand_remote_rsc_meta(xml_obj2, xml_resources, data_set);
if (new_node_id && pe_find_node(data_set->nodes, new_node_id) == NULL) {
crm_trace("Found guest node %s in resource %s inside group %s",
new_node_id, ID(xml_obj2), ID(xml_obj));
pe_create_node(new_node_id, new_node_id, "remote", NULL,
data_set);
}
}
}
}
return TRUE;
}
/* Call this after all the nodes and resources have been
* unpacked, but before the status section is read.
*
* A remote node's online status is reflected by the state
* of the remote node's connection resource. We need to link
* the remote node to this connection resource so we can have
* easy access to the connection resource during the scheduler calculations.
*/
static void
link_rsc2remotenode(pe_working_set_t *data_set, pe_resource_t *new_rsc)
{
pe_node_t *remote_node = NULL;
if (new_rsc->is_remote_node == FALSE) {
return;
}
- if (pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
+ if (pcmk_is_set(data_set->flags, pcmk_sched_location_only)) {
/* remote_nodes and remote_resources are not linked in quick location calculations */
return;
}
remote_node = pe_find_node(data_set->nodes, new_rsc->id);
CRM_CHECK(remote_node != NULL, return);
pe_rsc_trace(new_rsc, "Linking remote connection resource %s to %s",
new_rsc->id, pe__node_name(remote_node));
remote_node->details->remote_rsc = new_rsc;
if (new_rsc->container == NULL) {
/* Handle start-up fencing for remote nodes (as opposed to guest nodes)
* the same as is done for cluster nodes.
*/
handle_startup_fencing(data_set, remote_node);
} else {
/* pe_create_node() marks the new node as "remote" or "cluster"; now
* that we know the node is a guest node, update it correctly.
*/
g_hash_table_replace(remote_node->details->attrs, strdup(CRM_ATTR_KIND),
strdup("container"));
}
}
static void
destroy_tag(gpointer data)
{
pe_tag_t *tag = data;
if (tag) {
free(tag->id);
g_list_free_full(tag->refs, free);
free(tag);
}
}
/*!
* \internal
* \brief Parse configuration XML for resource information
*
* \param[in] xml_resources Top of resource configuration XML
* \param[in,out] data_set Where to put resource information
*
* \return TRUE
*
* \note unpack_remote_nodes() MUST be called before this, so that the nodes can
* be used when pe__unpack_resource() calls resource_location()
*/
gboolean
unpack_resources(const xmlNode *xml_resources, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
GList *gIter = NULL;
data_set->template_rsc_sets = pcmk__strkey_table(free, destroy_tag);
for (xml_obj = pcmk__xe_first_child(xml_resources); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
pe_resource_t *new_rsc = NULL;
const char *id = ID(xml_obj);
if (pcmk__str_empty(id)) {
pcmk__config_err("Ignoring <%s> resource without ID",
xml_obj->name);
continue;
}
if (pcmk__str_eq((const char *) xml_obj->name, XML_CIB_TAG_RSC_TEMPLATE,
pcmk__str_none)) {
if (g_hash_table_lookup_extended(data_set->template_rsc_sets, id,
NULL, NULL) == FALSE) {
/* Record the template's ID for the knowledge of its existence anyway. */
g_hash_table_insert(data_set->template_rsc_sets, strdup(id), NULL);
}
continue;
}
crm_trace("Unpacking <%s " XML_ATTR_ID "='%s'>",
xml_obj->name, id);
if (pe__unpack_resource(xml_obj, &new_rsc, NULL,
data_set) == pcmk_rc_ok) {
data_set->resources = g_list_append(data_set->resources, new_rsc);
pe_rsc_trace(new_rsc, "Added resource %s", new_rsc->id);
} else {
pcmk__config_err("Ignoring <%s> resource '%s' "
"because configuration is invalid",
xml_obj->name, id);
}
}
for (gIter = data_set->resources; gIter != NULL; gIter = gIter->next) {
pe_resource_t *rsc = (pe_resource_t *) gIter->data;
setup_container(rsc, data_set);
link_rsc2remotenode(data_set, rsc);
}
data_set->resources = g_list_sort(data_set->resources,
pe__cmp_rsc_priority);
- if (pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
+ if (pcmk_is_set(data_set->flags, pcmk_sched_location_only)) {
/* Ignore */
} else if (pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)
&& !pcmk_is_set(data_set->flags, pcmk_sched_have_fencing)) {
pcmk__config_err("Resource start-up disabled since no STONITH resources have been defined");
pcmk__config_err("Either configure some or disable STONITH with the stonith-enabled option");
pcmk__config_err("NOTE: Clusters with shared data need STONITH to ensure data integrity");
}
return TRUE;
}
gboolean
unpack_tags(xmlNode * xml_tags, pe_working_set_t * data_set)
{
xmlNode *xml_tag = NULL;
data_set->tags = pcmk__strkey_table(free, destroy_tag);
for (xml_tag = pcmk__xe_first_child(xml_tags); xml_tag != NULL;
xml_tag = pcmk__xe_next(xml_tag)) {
xmlNode *xml_obj_ref = NULL;
const char *tag_id = ID(xml_tag);
if (!pcmk__str_eq((const char *)xml_tag->name, XML_CIB_TAG_TAG, pcmk__str_none)) {
continue;
}
if (tag_id == NULL) {
pcmk__config_err("Ignoring <%s> without " XML_ATTR_ID,
(const char *) xml_tag->name);
continue;
}
for (xml_obj_ref = pcmk__xe_first_child(xml_tag); xml_obj_ref != NULL;
xml_obj_ref = pcmk__xe_next(xml_obj_ref)) {
const char *obj_ref = ID(xml_obj_ref);
if (!pcmk__str_eq((const char *)xml_obj_ref->name, XML_CIB_TAG_OBJ_REF, pcmk__str_none)) {
continue;
}
if (obj_ref == NULL) {
pcmk__config_err("Ignoring <%s> for tag '%s' without " XML_ATTR_ID,
xml_obj_ref->name, tag_id);
continue;
}
if (add_tag_ref(data_set->tags, tag_id, obj_ref) == FALSE) {
return FALSE;
}
}
}
return TRUE;
}
/* The ticket state section:
* "/cib/status/tickets/ticket_state" */
static gboolean
unpack_ticket_state(xmlNode * xml_ticket, pe_working_set_t * data_set)
{
const char *ticket_id = NULL;
const char *granted = NULL;
const char *last_granted = NULL;
const char *standby = NULL;
xmlAttrPtr xIter = NULL;
pe_ticket_t *ticket = NULL;
ticket_id = ID(xml_ticket);
if (pcmk__str_empty(ticket_id)) {
return FALSE;
}
crm_trace("Processing ticket state for %s", ticket_id);
ticket = g_hash_table_lookup(data_set->tickets, ticket_id);
if (ticket == NULL) {
ticket = ticket_new(ticket_id, data_set);
if (ticket == NULL) {
return FALSE;
}
}
for (xIter = xml_ticket->properties; xIter; xIter = xIter->next) {
const char *prop_name = (const char *)xIter->name;
const char *prop_value = pcmk__xml_attr_value(xIter);
if (pcmk__str_eq(prop_name, XML_ATTR_ID, pcmk__str_none)) {
continue;
}
g_hash_table_replace(ticket->state, strdup(prop_name), strdup(prop_value));
}
granted = g_hash_table_lookup(ticket->state, "granted");
if (granted && crm_is_true(granted)) {
ticket->granted = TRUE;
crm_info("We have ticket '%s'", ticket->id);
} else {
ticket->granted = FALSE;
crm_info("We do not have ticket '%s'", ticket->id);
}
last_granted = g_hash_table_lookup(ticket->state, "last-granted");
if (last_granted) {
long long last_granted_ll;
pcmk__scan_ll(last_granted, &last_granted_ll, 0LL);
ticket->last_granted = (time_t) last_granted_ll;
}
standby = g_hash_table_lookup(ticket->state, "standby");
if (standby && crm_is_true(standby)) {
ticket->standby = TRUE;
if (ticket->granted) {
crm_info("Granted ticket '%s' is in standby-mode", ticket->id);
}
} else {
ticket->standby = FALSE;
}
crm_trace("Done with ticket state for %s", ticket_id);
return TRUE;
}
static gboolean
unpack_tickets_state(xmlNode * xml_tickets, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
for (xml_obj = pcmk__xe_first_child(xml_tickets); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
if (!pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_TICKET_STATE, pcmk__str_none)) {
continue;
}
unpack_ticket_state(xml_obj, data_set);
}
return TRUE;
}
static void
unpack_handle_remote_attrs(pe_node_t *this_node, const xmlNode *state,
pe_working_set_t *data_set)
{
const char *resource_discovery_enabled = NULL;
const xmlNode *attrs = NULL;
pe_resource_t *rsc = NULL;
if (!pcmk__str_eq((const char *)state->name, XML_CIB_TAG_STATE, pcmk__str_none)) {
return;
}
if ((this_node == NULL) || !pe__is_guest_or_remote_node(this_node)) {
return;
}
crm_trace("Processing Pacemaker Remote node %s", pe__node_name(this_node));
pcmk__scan_min_int(crm_element_value(state, XML_NODE_IS_MAINTENANCE),
&(this_node->details->remote_maintenance), 0);
rsc = this_node->details->remote_rsc;
if (this_node->details->remote_requires_reset == FALSE) {
this_node->details->unclean = FALSE;
this_node->details->unseen = FALSE;
}
attrs = find_xml_node(state, XML_TAG_TRANSIENT_NODEATTRS, FALSE);
add_node_attrs(attrs, this_node, TRUE, data_set);
if (pe__shutdown_requested(this_node)) {
crm_info("%s is shutting down", pe__node_name(this_node));
this_node->details->shutdown = TRUE;
}
if (crm_is_true(pe_node_attribute_raw(this_node, "standby"))) {
crm_info("%s is in standby mode", pe__node_name(this_node));
this_node->details->standby = TRUE;
}
if (crm_is_true(pe_node_attribute_raw(this_node, "maintenance")) ||
((rsc != NULL) && !pcmk_is_set(rsc->flags, pe_rsc_managed))) {
crm_info("%s is in maintenance mode", pe__node_name(this_node));
this_node->details->maintenance = TRUE;
}
resource_discovery_enabled = pe_node_attribute_raw(this_node, XML_NODE_ATTR_RSC_DISCOVERY);
if (resource_discovery_enabled && !crm_is_true(resource_discovery_enabled)) {
if (pe__is_remote_node(this_node)
&& !pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
crm_warn("Ignoring " XML_NODE_ATTR_RSC_DISCOVERY
" attribute on Pacemaker Remote node %s"
" because fencing is disabled",
pe__node_name(this_node));
} else {
/* This is either a remote node with fencing enabled, or a guest
* node. We don't care whether fencing is enabled when fencing guest
* nodes, because they are "fenced" by recovering their containing
* resource.
*/
crm_info("%s has resource discovery disabled",
pe__node_name(this_node));
this_node->details->rsc_discovery_enabled = FALSE;
}
}
}
/*!
* \internal
* \brief Unpack a cluster node's transient attributes
*
* \param[in] state CIB node state XML
* \param[in,out] node Cluster node whose attributes are being unpacked
* \param[in,out] data_set Cluster working set
*/
static void
unpack_transient_attributes(const xmlNode *state, pe_node_t *node,
pe_working_set_t *data_set)
{
const char *discovery = NULL;
const xmlNode *attrs = find_xml_node(state, XML_TAG_TRANSIENT_NODEATTRS,
FALSE);
add_node_attrs(attrs, node, TRUE, data_set);
if (crm_is_true(pe_node_attribute_raw(node, "standby"))) {
crm_info("%s is in standby mode", pe__node_name(node));
node->details->standby = TRUE;
}
if (crm_is_true(pe_node_attribute_raw(node, "maintenance"))) {
crm_info("%s is in maintenance mode", pe__node_name(node));
node->details->maintenance = TRUE;
}
discovery = pe_node_attribute_raw(node, XML_NODE_ATTR_RSC_DISCOVERY);
if ((discovery != NULL) && !crm_is_true(discovery)) {
crm_warn("Ignoring " XML_NODE_ATTR_RSC_DISCOVERY
" attribute for %s because disabling resource discovery "
"is not allowed for cluster nodes", pe__node_name(node));
}
}
/*!
* \internal
* \brief Unpack a node state entry (first pass)
*
* Unpack one node state entry from status. This unpacks information from the
* node_state element itself and node attributes inside it, but not the
* resource history inside it. Multiple passes through the status are needed to
* fully unpack everything.
*
* \param[in] state CIB node state XML
* \param[in,out] data_set Cluster working set
*/
static void
unpack_node_state(const xmlNode *state, pe_working_set_t *data_set)
{
const char *id = NULL;
const char *uname = NULL;
pe_node_t *this_node = NULL;
id = crm_element_value(state, XML_ATTR_ID);
if (id == NULL) {
crm_warn("Ignoring malformed " XML_CIB_TAG_STATE " entry without "
XML_ATTR_ID);
return;
}
uname = crm_element_value(state, XML_ATTR_UNAME);
if (uname == NULL) {
/* If a joining peer makes the cluster acquire the quorum from corosync
* meanwhile it has not joined CPG membership of pacemaker-controld yet,
* it's possible that the created node_state entry doesn't have an uname
* yet. We should recognize the node as `pending` and wait for it to
* join CPG.
*/
crm_trace("Handling " XML_CIB_TAG_STATE " entry with id=\"%s\" without "
XML_ATTR_UNAME, id);
}
this_node = pe_find_node_any(data_set->nodes, id, uname);
if (this_node == NULL) {
pcmk__config_warn("Ignoring recorded node state for id=\"%s\" (%s) "
"because it is no longer in the configuration",
id, pcmk__s(uname, "uname unknown"));
return;
}
if (pe__is_guest_or_remote_node(this_node)) {
/* We can't determine the online status of Pacemaker Remote nodes until
* after all resource history has been unpacked. In this first pass, we
* do need to mark whether the node has been fenced, as this plays a
* role during unpacking cluster node resource state.
*/
pcmk__scan_min_int(crm_element_value(state, XML_NODE_IS_FENCED),
&(this_node->details->remote_was_fenced), 0);
return;
}
unpack_transient_attributes(state, this_node, data_set);
/* Provisionally mark this cluster node as clean. We have at least seen it
* in the current cluster's lifetime.
*/
this_node->details->unclean = FALSE;
this_node->details->unseen = FALSE;
crm_trace("Determining online status of cluster node %s (id %s)",
pe__node_name(this_node), id);
determine_online_status(state, this_node, data_set);
if (!pcmk_is_set(data_set->flags, pcmk_sched_quorate)
&& this_node->details->online
&& (data_set->no_quorum_policy == pcmk_no_quorum_fence)) {
/* Everything else should flow from this automatically
* (at least until the scheduler becomes able to migrate off
* healthy resources)
*/
pe_fence_node(data_set, this_node, "cluster does not have quorum",
FALSE);
}
}
/*!
* \internal
* \brief Unpack nodes' resource history as much as possible
*
* Unpack as many nodes' resource history as possible in one pass through the
* status. We need to process Pacemaker Remote nodes' connections/containers
* before unpacking their history; the connection/container history will be
* in another node's history, so it might take multiple passes to unpack
* everything.
*
* \param[in] status CIB XML status section
* \param[in] fence If true, treat any not-yet-unpacked nodes as unseen
* \param[in,out] data_set Cluster working set
*
* \return Standard Pacemaker return code (specifically pcmk_rc_ok if done,
* or EAGAIN if more unpacking remains to be done)
*/
static int
unpack_node_history(const xmlNode *status, bool fence,
pe_working_set_t *data_set)
{
int rc = pcmk_rc_ok;
// Loop through all node_state entries in CIB status
for (const xmlNode *state = first_named_child(status, XML_CIB_TAG_STATE);
state != NULL; state = crm_next_same_xml(state)) {
const char *id = ID(state);
const char *uname = crm_element_value(state, XML_ATTR_UNAME);
pe_node_t *this_node = NULL;
if ((id == NULL) || (uname == NULL)) {
// Warning already logged in first pass through status section
crm_trace("Not unpacking resource history from malformed "
XML_CIB_TAG_STATE " without id and/or uname");
continue;
}
this_node = pe_find_node_any(data_set->nodes, id, uname);
if (this_node == NULL) {
// Warning already logged in first pass through status section
crm_trace("Not unpacking resource history for node %s because "
"no longer in configuration", id);
continue;
}
if (this_node->details->unpacked) {
crm_trace("Not unpacking resource history for node %s because "
"already unpacked", id);
continue;
}
if (fence) {
// We're processing all remaining nodes
} else if (pe__is_guest_node(this_node)) {
/* We can unpack a guest node's history only after we've unpacked
* other resource history to the point that we know that the node's
* connection and containing resource are both up.
*/
pe_resource_t *rsc = this_node->details->remote_rsc;
if ((rsc == NULL) || (rsc->role != pcmk_role_started)
|| (rsc->container->role != pcmk_role_started)) {
crm_trace("Not unpacking resource history for guest node %s "
"because container and connection are not known to "
"be up", id);
continue;
}
} else if (pe__is_remote_node(this_node)) {
/* We can unpack a remote node's history only after we've unpacked
* other resource history to the point that we know that the node's
* connection is up, with the exception of when shutdown locks are
* in use.
*/
pe_resource_t *rsc = this_node->details->remote_rsc;
if ((rsc == NULL)
|| (!pcmk_is_set(data_set->flags, pcmk_sched_shutdown_lock)
&& (rsc->role != pcmk_role_started))) {
crm_trace("Not unpacking resource history for remote node %s "
"because connection is not known to be up", id);
continue;
}
/* If fencing and shutdown locks are disabled and we're not processing
* unseen nodes, then we don't want to unpack offline nodes until online
* nodes have been unpacked. This allows us to number active clone
* instances first.
*/
} else if (!pcmk_any_flags_set(data_set->flags,
pcmk_sched_fencing_enabled
|pcmk_sched_shutdown_lock)
&& !this_node->details->online) {
crm_trace("Not unpacking resource history for offline "
"cluster node %s", id);
continue;
}
if (pe__is_guest_or_remote_node(this_node)) {
determine_remote_online_status(data_set, this_node);
unpack_handle_remote_attrs(this_node, state, data_set);
}
crm_trace("Unpacking resource history for %snode %s",
(fence? "unseen " : ""), id);
this_node->details->unpacked = TRUE;
unpack_node_lrm(this_node, state, data_set);
rc = EAGAIN; // Other node histories might depend on this one
}
return rc;
}
/* remove nodes that are down, stopping */
/* create positive rsc_to_node constraints between resources and the nodes they are running on */
/* anything else? */
gboolean
unpack_status(xmlNode * status, pe_working_set_t * data_set)
{
xmlNode *state = NULL;
crm_trace("Beginning unpack");
if (data_set->tickets == NULL) {
data_set->tickets = pcmk__strkey_table(free, destroy_ticket);
}
for (state = pcmk__xe_first_child(status); state != NULL;
state = pcmk__xe_next(state)) {
if (pcmk__str_eq((const char *)state->name, XML_CIB_TAG_TICKETS, pcmk__str_none)) {
unpack_tickets_state((xmlNode *) state, data_set);
} else if (pcmk__str_eq((const char *)state->name, XML_CIB_TAG_STATE, pcmk__str_none)) {
unpack_node_state(state, data_set);
}
}
while (unpack_node_history(status, FALSE, data_set) == EAGAIN) {
crm_trace("Another pass through node resource histories is needed");
}
// Now catch any nodes we didn't see
unpack_node_history(status,
pcmk_is_set(data_set->flags,
pcmk_sched_fencing_enabled),
data_set);
/* Now that we know where resources are, we can schedule stops of containers
* with failed bundle connections
*/
if (data_set->stop_needed != NULL) {
for (GList *item = data_set->stop_needed; item; item = item->next) {
pe_resource_t *container = item->data;
pe_node_t *node = pe__current_node(container);
if (node) {
stop_action(container, node, FALSE);
}
}
g_list_free(data_set->stop_needed);
data_set->stop_needed = NULL;
}
/* Now that we know status of all Pacemaker Remote connections and nodes,
* we can stop connections for node shutdowns, and check the online status
* of remote/guest nodes that didn't have any node history to unpack.
*/
for (GList *gIter = data_set->nodes; gIter != NULL; gIter = gIter->next) {
pe_node_t *this_node = gIter->data;
if (!pe__is_guest_or_remote_node(this_node)) {
continue;
}
if (this_node->details->shutdown
&& (this_node->details->remote_rsc != NULL)) {
pe__set_next_role(this_node->details->remote_rsc, pcmk_role_stopped,
"remote shutdown");
}
if (!this_node->details->unpacked) {
determine_remote_online_status(data_set, this_node);
}
}
return TRUE;
}
static gboolean
determine_online_status_no_fencing(pe_working_set_t *data_set,
const xmlNode *node_state,
pe_node_t *this_node)
{
gboolean online = FALSE;
const char *join = crm_element_value(node_state, XML_NODE_JOIN_STATE);
const char *is_peer = crm_element_value(node_state, XML_NODE_IS_PEER);
const char *in_cluster = crm_element_value(node_state, XML_NODE_IN_CLUSTER);
const char *exp_state = crm_element_value(node_state, XML_NODE_EXPECTED);
int member = false;
bool crmd_online = false;
long long when_member = 0;
long long when_online = 0;
// @COMPAT DCs < 2.1.7 use boolean instead of time for cluster membership
if (crm_str_to_boolean(in_cluster, &member) != 1) {
pcmk__scan_ll(in_cluster, &when_member, 0LL);
member = (when_member > 0) ? true : false;
}
if (pcmk__str_eq(is_peer, ONLINESTATUS, pcmk__str_casei)) {
crmd_online = true;
} else if (pcmk__str_eq(is_peer, OFFLINESTATUS, pcmk__str_casei)) {
crmd_online = false;
} else {
pcmk__scan_ll(is_peer, &when_online, 0LL);
crmd_online = (when_online > 0) ? true : false;
}
if (!member) {
crm_trace("Node is down: in_cluster=%s",
pcmk__s(in_cluster, "<null>"));
} else if (crmd_online) {
if (pcmk__str_eq(join, CRMD_JOINSTATE_MEMBER, pcmk__str_casei)) {
online = TRUE;
} else {
crm_debug("Node is not ready to run resources: %s", join);
}
} else if (this_node->details->expected_up == FALSE) {
crm_trace("Controller is down: "
"in_cluster=%s is_peer=%s join=%s expected=%s",
pcmk__s(in_cluster, "<null>"), pcmk__s(is_peer, "<null>"),
pcmk__s(join, "<null>"), pcmk__s(exp_state, "<null>"));
} else {
/* mark it unclean */
pe_fence_node(data_set, this_node, "peer is unexpectedly down", FALSE);
crm_info("in_cluster=%s is_peer=%s join=%s expected=%s",
pcmk__s(in_cluster, "<null>"), pcmk__s(is_peer, "<null>"),
pcmk__s(join, "<null>"), pcmk__s(exp_state, "<null>"));
}
return online;
}
static gboolean
determine_online_status_fencing(pe_working_set_t *data_set,
const xmlNode *node_state, pe_node_t *this_node)
{
gboolean online = FALSE;
gboolean do_terminate = FALSE;
bool crmd_online = FALSE;
const char *join = crm_element_value(node_state, XML_NODE_JOIN_STATE);
const char *is_peer = crm_element_value(node_state, XML_NODE_IS_PEER);
const char *in_cluster = crm_element_value(node_state, XML_NODE_IN_CLUSTER);
const char *exp_state = crm_element_value(node_state, XML_NODE_EXPECTED);
const char *terminate = pe_node_attribute_raw(this_node, "terminate");
int member = false;
long long when_member = 0;
long long when_online = 0;
/*
- XML_NODE_JOIN_STATE ::= member|down|pending|banned
- XML_NODE_EXPECTED ::= member|down
@COMPAT with entries recorded for DCs < 2.1.7
- XML_NODE_IN_CLUSTER ::= true|false
- XML_NODE_IS_PEER ::= online|offline
Since crm_feature_set 3.18.0 (pacemaker-2.1.7):
- XML_NODE_IN_CLUSTER ::= <timestamp>|0
Since when node has been a cluster member. A value 0 of means the node is not
a cluster member.
- XML_NODE_IS_PEER ::= <timestamp>|0
Since when peer has been online in CPG. A value 0 means the peer is offline
in CPG.
*/
if (crm_is_true(terminate)) {
do_terminate = TRUE;
} else if (terminate != NULL && strlen(terminate) > 0) {
/* could be a time() value */
char t = terminate[0];
if (t != '0' && isdigit(t)) {
do_terminate = TRUE;
}
}
crm_trace("%s: in_cluster=%s is_peer=%s join=%s expected=%s term=%d",
pe__node_name(this_node), pcmk__s(in_cluster, "<null>"),
pcmk__s(is_peer, "<null>"), pcmk__s(join, "<null>"),
pcmk__s(exp_state, "<null>"), do_terminate);
/* @COMPAT with boolean values of XML_NODE_IN_CLUSTER recorded for
* DCs < 2.1.7
*/
if (crm_str_to_boolean(in_cluster, &member) != 1) {
pcmk__scan_ll(in_cluster, &when_member, 0LL);
member = (when_member > 0) ? true : false;
}
online = member;
/* @COMPAT with "online"/"offline" values of XML_NODE_IS_PEER recorded for
* DCs < 2.1.7
*/
if (pcmk__str_eq(is_peer, ONLINESTATUS, pcmk__str_casei)) {
crmd_online = true;
} else if (pcmk__str_eq(is_peer, OFFLINESTATUS, pcmk__str_casei)) {
crmd_online = false;
} else {
pcmk__scan_ll(is_peer, &when_online, 0LL);
crmd_online = (when_online > 0) ? true : false;
}
if (exp_state == NULL) {
exp_state = CRMD_JOINSTATE_DOWN;
}
if (this_node->details->shutdown) {
crm_debug("%s is shutting down", pe__node_name(this_node));
/* Slightly different criteria since we can't shut down a dead peer */
online = crmd_online;
} else if (in_cluster == NULL) {
pe_fence_node(data_set, this_node, "peer has not been seen by the cluster", FALSE);
} else if (pcmk__str_eq(join, CRMD_JOINSTATE_NACK, pcmk__str_casei)) {
pe_fence_node(data_set, this_node,
"peer failed Pacemaker membership criteria", FALSE);
} else if (do_terminate == FALSE && pcmk__str_eq(exp_state, CRMD_JOINSTATE_DOWN, pcmk__str_casei)) {
if (when_member > 0
&& when_online == 0
&& (get_effective_time(data_set) - when_member
>= data_set->node_pending_timeout)) {
pe_fence_node(data_set, this_node,
"peer pending timed out on joining the process group",
FALSE);
} else if (member || crmd_online) {
crm_info("- %s is not ready to run resources",
pe__node_name(this_node));
this_node->details->standby = TRUE;
this_node->details->pending = TRUE;
} else {
crm_trace("%s is down or still coming up",
pe__node_name(this_node));
}
} else if (do_terminate && pcmk__str_eq(join, CRMD_JOINSTATE_DOWN, pcmk__str_casei)
&& !member && !crmd_online) {
crm_info("%s was just shot", pe__node_name(this_node));
online = FALSE;
} else if (!member) {
// Consider `priority-fencing-delay` for lost nodes
pe_fence_node(data_set, this_node, "peer is no longer part of the cluster", TRUE);
} else if (!crmd_online) {
pe_fence_node(data_set, this_node, "peer process is no longer available", FALSE);
/* Everything is running at this point, now check join state */
} else if (do_terminate) {
pe_fence_node(data_set, this_node, "termination was requested", FALSE);
} else if (pcmk__str_eq(join, CRMD_JOINSTATE_MEMBER, pcmk__str_casei)) {
crm_info("%s is active", pe__node_name(this_node));
} else if (pcmk__strcase_any_of(join, CRMD_JOINSTATE_PENDING, CRMD_JOINSTATE_DOWN, NULL)) {
crm_info("%s is not ready to run resources", pe__node_name(this_node));
this_node->details->standby = TRUE;
this_node->details->pending = TRUE;
} else {
pe_fence_node(data_set, this_node, "peer was in an unknown state", FALSE);
crm_warn("%s: in-cluster=%s is-peer=%s join=%s expected=%s term=%d shutdown=%d",
pe__node_name(this_node), pcmk__s(in_cluster, "<null>"),
pcmk__s(is_peer, "<null>"), pcmk__s(join, "<null>"),
pcmk__s(exp_state, "<null>"), do_terminate,
this_node->details->shutdown);
}
return online;
}
static void
determine_remote_online_status(pe_working_set_t * data_set, pe_node_t * this_node)
{
pe_resource_t *rsc = this_node->details->remote_rsc;
pe_resource_t *container = NULL;
pe_node_t *host = NULL;
/* If there is a node state entry for a (former) Pacemaker Remote node
* but no resource creating that node, the node's connection resource will
* be NULL. Consider it an offline remote node in that case.
*/
if (rsc == NULL) {
this_node->details->online = FALSE;
goto remote_online_done;
}
container = rsc->container;
if (container && pcmk__list_of_1(rsc->running_on)) {
host = rsc->running_on->data;
}
/* If the resource is currently started, mark it online. */
if (rsc->role == pcmk_role_started) {
crm_trace("%s node %s presumed ONLINE because connection resource is started",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->online = TRUE;
}
/* consider this node shutting down if transitioning start->stop */
if ((rsc->role == pcmk_role_started)
&& (rsc->next_role == pcmk_role_stopped)) {
crm_trace("%s node %s shutting down because connection resource is stopping",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->shutdown = TRUE;
}
/* Now check all the failure conditions. */
if(container && pcmk_is_set(container->flags, pe_rsc_failed)) {
crm_trace("Guest node %s UNCLEAN because guest resource failed",
this_node->details->id);
this_node->details->online = FALSE;
this_node->details->remote_requires_reset = TRUE;
} else if (pcmk_is_set(rsc->flags, pe_rsc_failed)) {
crm_trace("%s node %s OFFLINE because connection resource failed",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->online = FALSE;
} else if ((rsc->role == pcmk_role_stopped)
|| ((container != NULL)
&& (container->role == pcmk_role_stopped))) {
crm_trace("%s node %s OFFLINE because its resource is stopped",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->online = FALSE;
this_node->details->remote_requires_reset = FALSE;
} else if (host && (host->details->online == FALSE)
&& host->details->unclean) {
crm_trace("Guest node %s UNCLEAN because host is unclean",
this_node->details->id);
this_node->details->online = FALSE;
this_node->details->remote_requires_reset = TRUE;
}
remote_online_done:
crm_trace("Remote node %s online=%s",
this_node->details->id, this_node->details->online ? "TRUE" : "FALSE");
}
static void
determine_online_status(const xmlNode *node_state, pe_node_t *this_node,
pe_working_set_t *data_set)
{
gboolean online = FALSE;
const char *exp_state = crm_element_value(node_state, XML_NODE_EXPECTED);
CRM_CHECK(this_node != NULL, return);
this_node->details->shutdown = FALSE;
this_node->details->expected_up = FALSE;
if (pe__shutdown_requested(this_node)) {
this_node->details->shutdown = TRUE;
} else if (pcmk__str_eq(exp_state, CRMD_JOINSTATE_MEMBER, pcmk__str_casei)) {
this_node->details->expected_up = TRUE;
}
if (this_node->details->type == node_ping) {
this_node->details->unclean = FALSE;
online = FALSE; /* As far as resource management is concerned,
* the node is safely offline.
* Anyone caught abusing this logic will be shot
*/
} else if (!pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
online = determine_online_status_no_fencing(data_set, node_state, this_node);
} else {
online = determine_online_status_fencing(data_set, node_state, this_node);
}
if (online) {
this_node->details->online = TRUE;
} else {
/* remove node from contention */
this_node->fixed = TRUE; // @COMPAT deprecated and unused
this_node->weight = -INFINITY;
}
if (online && this_node->details->shutdown) {
/* don't run resources here */
this_node->fixed = TRUE; // @COMPAT deprecated and unused
this_node->weight = -INFINITY;
}
if (this_node->details->type == node_ping) {
crm_info("%s is not a Pacemaker node", pe__node_name(this_node));
} else if (this_node->details->unclean) {
pe_proc_warn("%s is unclean", pe__node_name(this_node));
} else if (this_node->details->online) {
crm_info("%s is %s", pe__node_name(this_node),
this_node->details->shutdown ? "shutting down" :
this_node->details->pending ? "pending" :
this_node->details->standby ? "standby" :
this_node->details->maintenance ? "maintenance" : "online");
} else {
crm_trace("%s is offline", pe__node_name(this_node));
}
}
/*!
* \internal
* \brief Find the end of a resource's name, excluding any clone suffix
*
* \param[in] id Resource ID to check
*
* \return Pointer to last character of resource's base name
*/
const char *
pe_base_name_end(const char *id)
{
if (!pcmk__str_empty(id)) {
const char *end = id + strlen(id) - 1;
for (const char *s = end; s > id; --s) {
switch (*s) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
break;
case ':':
return (s == end)? s : (s - 1);
default:
return end;
}
}
return end;
}
return NULL;
}
/*!
* \internal
* \brief Get a resource name excluding any clone suffix
*
* \param[in] last_rsc_id Resource ID to check
*
* \return Pointer to newly allocated string with resource's base name
* \note It is the caller's responsibility to free() the result.
* This asserts on error, so callers can assume result is not NULL.
*/
char *
clone_strip(const char *last_rsc_id)
{
const char *end = pe_base_name_end(last_rsc_id);
char *basename = NULL;
CRM_ASSERT(end);
basename = strndup(last_rsc_id, end - last_rsc_id + 1);
CRM_ASSERT(basename);
return basename;
}
/*!
* \internal
* \brief Get the name of the first instance of a cloned resource
*
* \param[in] last_rsc_id Resource ID to check
*
* \return Pointer to newly allocated string with resource's base name plus :0
* \note It is the caller's responsibility to free() the result.
* This asserts on error, so callers can assume result is not NULL.
*/
char *
clone_zero(const char *last_rsc_id)
{
const char *end = pe_base_name_end(last_rsc_id);
size_t base_name_len = end - last_rsc_id + 1;
char *zero = NULL;
CRM_ASSERT(end);
zero = calloc(base_name_len + 3, sizeof(char));
CRM_ASSERT(zero);
memcpy(zero, last_rsc_id, base_name_len);
zero[base_name_len] = ':';
zero[base_name_len + 1] = '0';
return zero;
}
static pe_resource_t *
create_fake_resource(const char *rsc_id, const xmlNode *rsc_entry,
pe_working_set_t *data_set)
{
pe_resource_t *rsc = NULL;
xmlNode *xml_rsc = create_xml_node(NULL, XML_CIB_TAG_RESOURCE);
copy_in_properties(xml_rsc, rsc_entry);
crm_xml_add(xml_rsc, XML_ATTR_ID, rsc_id);
crm_log_xml_debug(xml_rsc, "Orphan resource");
if (pe__unpack_resource(xml_rsc, &rsc, NULL, data_set) != pcmk_rc_ok) {
return NULL;
}
if (xml_contains_remote_node(xml_rsc)) {
pe_node_t *node;
crm_debug("Detected orphaned remote node %s", rsc_id);
node = pe_find_node(data_set->nodes, rsc_id);
if (node == NULL) {
node = pe_create_node(rsc_id, rsc_id, "remote", NULL, data_set);
}
link_rsc2remotenode(data_set, rsc);
if (node) {
crm_trace("Setting node %s as shutting down due to orphaned connection resource", rsc_id);
node->details->shutdown = TRUE;
}
}
if (crm_element_value(rsc_entry, XML_RSC_ATTR_CONTAINER)) {
/* This orphaned rsc needs to be mapped to a container. */
crm_trace("Detected orphaned container filler %s", rsc_id);
pe__set_resource_flags(rsc, pe_rsc_orphan_container_filler);
}
pe__set_resource_flags(rsc, pe_rsc_orphan);
data_set->resources = g_list_append(data_set->resources, rsc);
return rsc;
}
/*!
* \internal
* \brief Create orphan instance for anonymous clone resource history
*
* \param[in,out] parent Clone resource that orphan will be added to
* \param[in] rsc_id Orphan's resource ID
* \param[in] node Where orphan is active (for logging only)
* \param[in,out] data_set Cluster working set
*
* \return Newly added orphaned instance of \p parent
*/
static pe_resource_t *
create_anonymous_orphan(pe_resource_t *parent, const char *rsc_id,
const pe_node_t *node, pe_working_set_t *data_set)
{
pe_resource_t *top = pe__create_clone_child(parent, data_set);
// find_rsc() because we might be a cloned group
pe_resource_t *orphan = top->fns->find_rsc(top, rsc_id, NULL,
pcmk_rsc_match_clone_only);
pe_rsc_debug(parent, "Created orphan %s for %s: %s on %s",
top->id, parent->id, rsc_id, pe__node_name(node));
return orphan;
}
/*!
* \internal
* \brief Check a node for an instance of an anonymous clone
*
* Return a child instance of the specified anonymous clone, in order of
* preference: (1) the instance running on the specified node, if any;
* (2) an inactive instance (i.e. within the total of clone-max instances);
* (3) a newly created orphan (i.e. clone-max instances are already active).
*
* \param[in,out] data_set Cluster information
* \param[in] node Node on which to check for instance
* \param[in,out] parent Clone to check
* \param[in] rsc_id Name of cloned resource in history (without instance)
*/
static pe_resource_t *
find_anonymous_clone(pe_working_set_t *data_set, const pe_node_t *node,
pe_resource_t *parent, const char *rsc_id)
{
GList *rIter = NULL;
pe_resource_t *rsc = NULL;
pe_resource_t *inactive_instance = NULL;
gboolean skip_inactive = FALSE;
CRM_ASSERT(parent != NULL);
CRM_ASSERT(pe_rsc_is_clone(parent));
CRM_ASSERT(!pcmk_is_set(parent->flags, pe_rsc_unique));
// Check for active (or partially active, for cloned groups) instance
pe_rsc_trace(parent, "Looking for %s on %s in %s",
rsc_id, pe__node_name(node), parent->id);
for (rIter = parent->children; rsc == NULL && rIter; rIter = rIter->next) {
GList *locations = NULL;
pe_resource_t *child = rIter->data;
/* Check whether this instance is already known to be active or pending
* anywhere, at this stage of unpacking. Because this function is called
* for a resource before the resource's individual operation history
* entries are unpacked, locations will generally not contain the
* desired node.
*
* However, there are three exceptions:
* (1) when child is a cloned group and we have already unpacked the
* history of another member of the group on the same node;
* (2) when we've already unpacked the history of another numbered
* instance on the same node (which can happen if globally-unique
* was flipped from true to false); and
* (3) when we re-run calculations on the same data set as part of a
* simulation.
*/
child->fns->location(child, &locations, 2);
if (locations) {
/* We should never associate the same numbered anonymous clone
* instance with multiple nodes, and clone instances can't migrate,
* so there must be only one location, regardless of history.
*/
CRM_LOG_ASSERT(locations->next == NULL);
if (((pe_node_t *)locations->data)->details == node->details) {
/* This child instance is active on the requested node, so check
* for a corresponding configured resource. We use find_rsc()
* instead of child because child may be a cloned group, and we
* need the particular member corresponding to rsc_id.
*
* If the history entry is orphaned, rsc will be NULL.
*/
rsc = parent->fns->find_rsc(child, rsc_id, NULL,
pcmk_rsc_match_clone_only);
if (rsc) {
/* If there are multiple instance history entries for an
* anonymous clone in a single node's history (which can
* happen if globally-unique is switched from true to
* false), we want to consider the instances beyond the
* first as orphans, even if there are inactive instance
* numbers available.
*/
if (rsc->running_on) {
crm_notice("Active (now-)anonymous clone %s has "
"multiple (orphan) instance histories on %s",
parent->id, pe__node_name(node));
skip_inactive = TRUE;
rsc = NULL;
} else {
pe_rsc_trace(parent, "Resource %s, active", rsc->id);
}
}
}
g_list_free(locations);
} else {
pe_rsc_trace(parent, "Resource %s, skip inactive", child->id);
if (!skip_inactive && !inactive_instance
&& !pcmk_is_set(child->flags, pe_rsc_block)) {
// Remember one inactive instance in case we don't find active
inactive_instance = parent->fns->find_rsc(child, rsc_id, NULL,
pcmk_rsc_match_clone_only);
/* ... but don't use it if it was already associated with a
* pending action on another node
*/
if (inactive_instance && inactive_instance->pending_node
&& (inactive_instance->pending_node->details != node->details)) {
inactive_instance = NULL;
}
}
}
}
if ((rsc == NULL) && !skip_inactive && (inactive_instance != NULL)) {
pe_rsc_trace(parent, "Resource %s, empty slot", inactive_instance->id);
rsc = inactive_instance;
}
/* If the resource has "requires" set to "quorum" or "nothing", and we don't
* have a clone instance for every node, we don't want to consume a valid
* instance number for unclean nodes. Such instances may appear to be active
* according to the history, but should be considered inactive, so we can
* start an instance elsewhere. Treat such instances as orphans.
*
* An exception is instances running on guest nodes -- since guest node
* "fencing" is actually just a resource stop, requires shouldn't apply.
*
* @TODO Ideally, we'd use an inactive instance number if it is not needed
* for any clean instances. However, we don't know that at this point.
*/
if ((rsc != NULL) && !pcmk_is_set(rsc->flags, pe_rsc_needs_fencing)
&& (!node->details->online || node->details->unclean)
&& !pe__is_guest_node(node)
&& !pe__is_universal_clone(parent, data_set)) {
rsc = NULL;
}
if (rsc == NULL) {
rsc = create_anonymous_orphan(parent, rsc_id, node, data_set);
pe_rsc_trace(parent, "Resource %s, orphan", rsc->id);
}
return rsc;
}
static pe_resource_t *
unpack_find_resource(pe_working_set_t *data_set, const pe_node_t *node,
const char *rsc_id)
{
pe_resource_t *rsc = NULL;
pe_resource_t *parent = NULL;
crm_trace("looking for %s", rsc_id);
rsc = pe_find_resource(data_set->resources, rsc_id);
if (rsc == NULL) {
/* If we didn't find the resource by its name in the operation history,
* check it again as a clone instance. Even when clone-max=0, we create
* a single :0 orphan to match against here.
*/
char *clone0_id = clone_zero(rsc_id);
pe_resource_t *clone0 = pe_find_resource(data_set->resources, clone0_id);
if (clone0 && !pcmk_is_set(clone0->flags, pe_rsc_unique)) {
rsc = clone0;
parent = uber_parent(clone0);
crm_trace("%s found as %s (%s)", rsc_id, clone0_id, parent->id);
} else {
crm_trace("%s is not known as %s either (orphan)",
rsc_id, clone0_id);
}
free(clone0_id);
} else if (rsc->variant > pcmk_rsc_variant_primitive) {
crm_trace("Resource history for %s is orphaned because it is no longer primitive",
rsc_id);
return NULL;
} else {
parent = uber_parent(rsc);
}
if (pe_rsc_is_anon_clone(parent)) {
if (pe_rsc_is_bundled(parent)) {
rsc = pe__find_bundle_replica(parent->parent, node);
} else {
char *base = clone_strip(rsc_id);
rsc = find_anonymous_clone(data_set, node, parent, base);
free(base);
CRM_ASSERT(rsc != NULL);
}
}
if (rsc && !pcmk__str_eq(rsc_id, rsc->id, pcmk__str_casei)
&& !pcmk__str_eq(rsc_id, rsc->clone_name, pcmk__str_casei)) {
pcmk__str_update(&rsc->clone_name, rsc_id);
pe_rsc_debug(rsc, "Internally renamed %s on %s to %s%s",
rsc_id, pe__node_name(node), rsc->id,
(pcmk_is_set(rsc->flags, pe_rsc_orphan)? " (ORPHAN)" : ""));
}
return rsc;
}
static pe_resource_t *
process_orphan_resource(const xmlNode *rsc_entry, const pe_node_t *node,
pe_working_set_t *data_set)
{
pe_resource_t *rsc = NULL;
const char *rsc_id = crm_element_value(rsc_entry, XML_ATTR_ID);
crm_debug("Detected orphan resource %s on %s", rsc_id, pe__node_name(node));
rsc = create_fake_resource(rsc_id, rsc_entry, data_set);
if (rsc == NULL) {
return NULL;
}
if (!pcmk_is_set(data_set->flags, pcmk_sched_stop_removed_resources)) {
pe__clear_resource_flags(rsc, pe_rsc_managed);
} else {
CRM_CHECK(rsc != NULL, return NULL);
pe_rsc_trace(rsc, "Added orphan %s", rsc->id);
resource_location(rsc, NULL, -INFINITY, "__orphan_do_not_run__", data_set);
}
return rsc;
}
static void
process_rsc_state(pe_resource_t * rsc, pe_node_t * node,
enum action_fail_response on_fail)
{
pe_node_t *tmpnode = NULL;
char *reason = NULL;
enum action_fail_response save_on_fail = pcmk_on_fail_ignore;
CRM_ASSERT(rsc);
pe_rsc_trace(rsc, "Resource %s is %s on %s: on_fail=%s",
rsc->id, role2text(rsc->role), pe__node_name(node),
fail2text(on_fail));
/* process current state */
if (rsc->role != pcmk_role_unknown) {
pe_resource_t *iter = rsc;
while (iter) {
if (g_hash_table_lookup(iter->known_on, node->details->id) == NULL) {
pe_node_t *n = pe__copy_node(node);
pe_rsc_trace(rsc, "%s%s%s known on %s",
rsc->id,
((rsc->clone_name == NULL)? "" : " also known as "),
((rsc->clone_name == NULL)? "" : rsc->clone_name),
pe__node_name(n));
g_hash_table_insert(iter->known_on, (gpointer) n->details->id, n);
}
if (pcmk_is_set(iter->flags, pe_rsc_unique)) {
break;
}
iter = iter->parent;
}
}
/* If a managed resource is believed to be running, but node is down ... */
if ((rsc->role > pcmk_role_stopped)
&& node->details->online == FALSE
&& node->details->maintenance == FALSE
&& pcmk_is_set(rsc->flags, pe_rsc_managed)) {
gboolean should_fence = FALSE;
/* If this is a guest node, fence it (regardless of whether fencing is
* enabled, because guest node fencing is done by recovery of the
* container resource rather than by the fencer). Mark the resource
* we're processing as failed. When the guest comes back up, its
* operation history in the CIB will be cleared, freeing the affected
* resource to run again once we are sure we know its state.
*/
if (pe__is_guest_node(node)) {
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
should_fence = TRUE;
} else if (pcmk_is_set(rsc->cluster->flags,
pcmk_sched_fencing_enabled)) {
if (pe__is_remote_node(node) && node->details->remote_rsc
&& !pcmk_is_set(node->details->remote_rsc->flags, pe_rsc_failed)) {
/* Setting unseen means that fencing of the remote node will
* occur only if the connection resource is not going to start
* somewhere. This allows connection resources on a failed
* cluster node to move to another node without requiring the
* remote nodes to be fenced as well.
*/
node->details->unseen = TRUE;
reason = crm_strdup_printf("%s is active there (fencing will be"
" revoked if remote connection can "
"be re-established elsewhere)",
rsc->id);
}
should_fence = TRUE;
}
if (should_fence) {
if (reason == NULL) {
reason = crm_strdup_printf("%s is thought to be active there", rsc->id);
}
pe_fence_node(rsc->cluster, node, reason, FALSE);
}
free(reason);
}
/* In order to calculate priority_fencing_delay correctly, save the failure information and pass it to native_add_running(). */
save_on_fail = on_fail;
if (node->details->unclean) {
/* No extra processing needed
* Also allows resources to be started again after a node is shot
*/
on_fail = pcmk_on_fail_ignore;
}
switch (on_fail) {
case pcmk_on_fail_ignore:
/* nothing to do */
break;
case pcmk_on_fail_demote:
pe__set_resource_flags(rsc, pe_rsc_failed);
demote_action(rsc, node, FALSE);
break;
case pcmk_on_fail_fence_node:
/* treat it as if it is still running
* but also mark the node as unclean
*/
reason = crm_strdup_printf("%s failed there", rsc->id);
pe_fence_node(rsc->cluster, node, reason, FALSE);
free(reason);
break;
case pcmk_on_fail_standby_node:
node->details->standby = TRUE;
node->details->standby_onfail = TRUE;
break;
case pcmk_on_fail_block:
/* is_managed == FALSE will prevent any
* actions being sent for the resource
*/
pe__clear_resource_flags(rsc, pe_rsc_managed);
pe__set_resource_flags(rsc, pe_rsc_block);
break;
case pcmk_on_fail_ban:
/* make sure it comes up somewhere else
* or not at all
*/
resource_location(rsc, node, -INFINITY, "__action_migration_auto__",
rsc->cluster);
break;
case pcmk_on_fail_stop:
pe__set_next_role(rsc, pcmk_role_stopped, "on-fail=stop");
break;
case pcmk_on_fail_restart:
if ((rsc->role != pcmk_role_stopped)
&& (rsc->role != pcmk_role_unknown)) {
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
stop_action(rsc, node, FALSE);
}
break;
case pcmk_on_fail_restart_container:
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
if (rsc->container && pe_rsc_is_bundled(rsc)) {
/* A bundle's remote connection can run on a different node than
* the bundle's container. We don't necessarily know where the
* container is running yet, so remember it and add a stop
* action for it later.
*/
rsc->cluster->stop_needed =
g_list_prepend(rsc->cluster->stop_needed, rsc->container);
} else if (rsc->container) {
stop_action(rsc->container, node, FALSE);
} else if ((rsc->role != pcmk_role_stopped)
&& (rsc->role != pcmk_role_unknown)) {
stop_action(rsc, node, FALSE);
}
break;
case pcmk_on_fail_reset_remote:
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
if (pcmk_is_set(rsc->cluster->flags, pcmk_sched_fencing_enabled)) {
tmpnode = NULL;
if (rsc->is_remote_node) {
tmpnode = pe_find_node(rsc->cluster->nodes, rsc->id);
}
if (tmpnode &&
pe__is_remote_node(tmpnode) &&
tmpnode->details->remote_was_fenced == 0) {
/* The remote connection resource failed in a way that
* should result in fencing the remote node.
*/
pe_fence_node(rsc->cluster, tmpnode,
"remote connection is unrecoverable", FALSE);
}
}
/* require the stop action regardless if fencing is occurring or not. */
if (rsc->role > pcmk_role_stopped) {
stop_action(rsc, node, FALSE);
}
/* if reconnect delay is in use, prevent the connection from exiting the
* "STOPPED" role until the failure is cleared by the delay timeout. */
if (rsc->remote_reconnect_ms) {
pe__set_next_role(rsc, pcmk_role_stopped, "remote reset");
}
break;
}
/* ensure a remote-node connection failure forces an unclean remote-node
* to be fenced. By setting unseen = FALSE, the remote-node failure will
* result in a fencing operation regardless if we're going to attempt to
* reconnect to the remote-node in this transition or not. */
if (pcmk_is_set(rsc->flags, pe_rsc_failed) && rsc->is_remote_node) {
tmpnode = pe_find_node(rsc->cluster->nodes, rsc->id);
if (tmpnode && tmpnode->details->unclean) {
tmpnode->details->unseen = FALSE;
}
}
if ((rsc->role != pcmk_role_stopped)
&& (rsc->role != pcmk_role_unknown)) {
if (pcmk_is_set(rsc->flags, pe_rsc_orphan)) {
if (pcmk_is_set(rsc->flags, pe_rsc_managed)) {
pcmk__config_warn("Detected active orphan %s running on %s",
rsc->id, pe__node_name(node));
} else {
pcmk__config_warn("Resource '%s' must be stopped manually on "
"%s because cluster is configured not to "
"stop active orphans",
rsc->id, pe__node_name(node));
}
}
native_add_running(rsc, node, rsc->cluster,
(save_on_fail != pcmk_on_fail_ignore));
switch (on_fail) {
case pcmk_on_fail_ignore:
break;
case pcmk_on_fail_demote:
case pcmk_on_fail_block:
pe__set_resource_flags(rsc, pe_rsc_failed);
break;
default:
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
break;
}
} else if (rsc->clone_name && strchr(rsc->clone_name, ':') != NULL) {
/* Only do this for older status sections that included instance numbers
* Otherwise stopped instances will appear as orphans
*/
pe_rsc_trace(rsc, "Resetting clone_name %s for %s (stopped)", rsc->clone_name, rsc->id);
free(rsc->clone_name);
rsc->clone_name = NULL;
} else {
GList *possible_matches = pe__resource_actions(rsc, node,
PCMK_ACTION_STOP, FALSE);
GList *gIter = possible_matches;
for (; gIter != NULL; gIter = gIter->next) {
pe_action_t *stop = (pe_action_t *) gIter->data;
pe__set_action_flags(stop, pe_action_optional);
}
g_list_free(possible_matches);
}
/* A successful stop after migrate_to on the migration source doesn't make
* the partially migrated resource stopped on the migration target.
*/
if ((rsc->role == pcmk_role_stopped)
&& rsc->partial_migration_source
&& rsc->partial_migration_source->details == node->details
&& rsc->partial_migration_target
&& rsc->running_on) {
rsc->role = pcmk_role_started;
}
}
/* create active recurring operations as optional */
static void
process_recurring(pe_node_t * node, pe_resource_t * rsc,
int start_index, int stop_index,
GList *sorted_op_list, pe_working_set_t * data_set)
{
int counter = -1;
const char *task = NULL;
const char *status = NULL;
GList *gIter = sorted_op_list;
CRM_ASSERT(rsc);
pe_rsc_trace(rsc, "%s: Start index %d, stop index = %d", rsc->id, start_index, stop_index);
for (; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
guint interval_ms = 0;
char *key = NULL;
const char *id = ID(rsc_op);
counter++;
if (node->details->online == FALSE) {
pe_rsc_trace(rsc, "Skipping %s on %s: node is offline",
rsc->id, pe__node_name(node));
break;
/* Need to check if there's a monitor for role="Stopped" */
} else if (start_index < stop_index && counter <= stop_index) {
pe_rsc_trace(rsc, "Skipping %s on %s: resource is not active",
id, pe__node_name(node));
continue;
} else if (counter < start_index) {
pe_rsc_trace(rsc, "Skipping %s on %s: old %d",
id, pe__node_name(node), counter);
continue;
}
crm_element_value_ms(rsc_op, XML_LRM_ATTR_INTERVAL_MS, &interval_ms);
if (interval_ms == 0) {
pe_rsc_trace(rsc, "Skipping %s on %s: non-recurring",
id, pe__node_name(node));
continue;
}
status = crm_element_value(rsc_op, XML_LRM_ATTR_OPSTATUS);
if (pcmk__str_eq(status, "-1", pcmk__str_casei)) {
pe_rsc_trace(rsc, "Skipping %s on %s: status",
id, pe__node_name(node));
continue;
}
task = crm_element_value(rsc_op, XML_LRM_ATTR_TASK);
/* create the action */
key = pcmk__op_key(rsc->id, task, interval_ms);
pe_rsc_trace(rsc, "Creating %s on %s", key, pe__node_name(node));
custom_action(rsc, key, task, node, TRUE, TRUE, data_set);
}
}
void
calculate_active_ops(const GList *sorted_op_list, int *start_index,
int *stop_index)
{
int counter = -1;
int implied_monitor_start = -1;
int implied_clone_start = -1;
const char *task = NULL;
const char *status = NULL;
*stop_index = -1;
*start_index = -1;
for (const GList *iter = sorted_op_list; iter != NULL; iter = iter->next) {
const xmlNode *rsc_op = (const xmlNode *) iter->data;
counter++;
task = crm_element_value(rsc_op, XML_LRM_ATTR_TASK);
status = crm_element_value(rsc_op, XML_LRM_ATTR_OPSTATUS);
if (pcmk__str_eq(task, PCMK_ACTION_STOP, pcmk__str_casei)
&& pcmk__str_eq(status, "0", pcmk__str_casei)) {
*stop_index = counter;
} else if (pcmk__strcase_any_of(task, PCMK_ACTION_START,
PCMK_ACTION_MIGRATE_FROM, NULL)) {
*start_index = counter;
} else if ((implied_monitor_start <= *stop_index)
&& pcmk__str_eq(task, PCMK_ACTION_MONITOR,
pcmk__str_casei)) {
const char *rc = crm_element_value(rsc_op, XML_LRM_ATTR_RC);
if (pcmk__strcase_any_of(rc, "0", "8", NULL)) {
implied_monitor_start = counter;
}
} else if (pcmk__strcase_any_of(task, PCMK_ACTION_PROMOTE,
PCMK_ACTION_DEMOTE, NULL)) {
implied_clone_start = counter;
}
}
if (*start_index == -1) {
if (implied_clone_start != -1) {
*start_index = implied_clone_start;
} else if (implied_monitor_start != -1) {
*start_index = implied_monitor_start;
}
}
}
// If resource history entry has shutdown lock, remember lock node and time
static void
unpack_shutdown_lock(const xmlNode *rsc_entry, pe_resource_t *rsc,
const pe_node_t *node, pe_working_set_t *data_set)
{
time_t lock_time = 0; // When lock started (i.e. node shutdown time)
if ((crm_element_value_epoch(rsc_entry, XML_CONFIG_ATTR_SHUTDOWN_LOCK,
&lock_time) == pcmk_ok) && (lock_time != 0)) {
if ((data_set->shutdown_lock > 0)
&& (get_effective_time(data_set)
> (lock_time + data_set->shutdown_lock))) {
pe_rsc_info(rsc, "Shutdown lock for %s on %s expired",
rsc->id, pe__node_name(node));
pe__clear_resource_history(rsc, node, data_set);
} else {
/* @COMPAT I don't like breaking const signatures, but
* rsc->lock_node should really be const -- we just can't change it
* until the next API compatibility break.
*/
rsc->lock_node = (pe_node_t *) node;
rsc->lock_time = lock_time;
}
}
}
/*!
* \internal
* \brief Unpack one lrm_resource entry from a node's CIB status
*
* \param[in,out] node Node whose status is being unpacked
* \param[in] rsc_entry lrm_resource XML being unpacked
* \param[in,out] data_set Cluster working set
*
* \return Resource corresponding to the entry, or NULL if no operation history
*/
static pe_resource_t *
unpack_lrm_resource(pe_node_t *node, const xmlNode *lrm_resource,
pe_working_set_t *data_set)
{
GList *gIter = NULL;
int stop_index = -1;
int start_index = -1;
enum rsc_role_e req_role = pcmk_role_unknown;
const char *rsc_id = ID(lrm_resource);
pe_resource_t *rsc = NULL;
GList *op_list = NULL;
GList *sorted_op_list = NULL;
xmlNode *rsc_op = NULL;
xmlNode *last_failure = NULL;
enum action_fail_response on_fail = pcmk_on_fail_ignore;
enum rsc_role_e saved_role = pcmk_role_unknown;
if (rsc_id == NULL) {
crm_warn("Ignoring malformed " XML_LRM_TAG_RESOURCE
" entry without id");
return NULL;
}
crm_trace("Unpacking " XML_LRM_TAG_RESOURCE " for %s on %s",
rsc_id, pe__node_name(node));
// Build a list of individual lrm_rsc_op entries, so we can sort them
for (rsc_op = first_named_child(lrm_resource, XML_LRM_TAG_RSC_OP);
rsc_op != NULL; rsc_op = crm_next_same_xml(rsc_op)) {
op_list = g_list_prepend(op_list, rsc_op);
}
if (!pcmk_is_set(data_set->flags, pcmk_sched_shutdown_lock)) {
if (op_list == NULL) {
// If there are no operations, there is nothing to do
return NULL;
}
}
/* find the resource */
rsc = unpack_find_resource(data_set, node, rsc_id);
if (rsc == NULL) {
if (op_list == NULL) {
// If there are no operations, there is nothing to do
return NULL;
} else {
rsc = process_orphan_resource(lrm_resource, node, data_set);
}
}
CRM_ASSERT(rsc != NULL);
// Check whether the resource is "shutdown-locked" to this node
if (pcmk_is_set(data_set->flags, pcmk_sched_shutdown_lock)) {
unpack_shutdown_lock(lrm_resource, rsc, node, data_set);
}
/* process operations */
saved_role = rsc->role;
rsc->role = pcmk_role_unknown;
sorted_op_list = g_list_sort(op_list, sort_op_by_callid);
for (gIter = sorted_op_list; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
unpack_rsc_op(rsc, node, rsc_op, &last_failure, &on_fail);
}
/* create active recurring operations as optional */
calculate_active_ops(sorted_op_list, &start_index, &stop_index);
process_recurring(node, rsc, start_index, stop_index, sorted_op_list, data_set);
/* no need to free the contents */
g_list_free(sorted_op_list);
process_rsc_state(rsc, node, on_fail);
if (get_target_role(rsc, &req_role)) {
if ((rsc->next_role == pcmk_role_unknown)
|| (req_role < rsc->next_role)) {
pe__set_next_role(rsc, req_role, XML_RSC_ATTR_TARGET_ROLE);
} else if (req_role > rsc->next_role) {
pe_rsc_info(rsc, "%s: Not overwriting calculated next role %s"
" with requested next role %s",
rsc->id, role2text(rsc->next_role), role2text(req_role));
}
}
if (saved_role > rsc->role) {
rsc->role = saved_role;
}
return rsc;
}
static void
handle_orphaned_container_fillers(const xmlNode *lrm_rsc_list,
pe_working_set_t *data_set)
{
for (const xmlNode *rsc_entry = pcmk__xe_first_child(lrm_rsc_list);
rsc_entry != NULL; rsc_entry = pcmk__xe_next(rsc_entry)) {
pe_resource_t *rsc;
pe_resource_t *container;
const char *rsc_id;
const char *container_id;
if (!pcmk__str_eq((const char *)rsc_entry->name, XML_LRM_TAG_RESOURCE, pcmk__str_casei)) {
continue;
}
container_id = crm_element_value(rsc_entry, XML_RSC_ATTR_CONTAINER);
rsc_id = crm_element_value(rsc_entry, XML_ATTR_ID);
if (container_id == NULL || rsc_id == NULL) {
continue;
}
container = pe_find_resource(data_set->resources, container_id);
if (container == NULL) {
continue;
}
rsc = pe_find_resource(data_set->resources, rsc_id);
if (rsc == NULL ||
!pcmk_is_set(rsc->flags, pe_rsc_orphan_container_filler) ||
rsc->container != NULL) {
continue;
}
pe_rsc_trace(rsc, "Mapped container of orphaned resource %s to %s",
rsc->id, container_id);
rsc->container = container;
container->fillers = g_list_append(container->fillers, rsc);
}
}
/*!
* \internal
* \brief Unpack one node's lrm status section
*
* \param[in,out] node Node whose status is being unpacked
* \param[in] xml CIB node state XML
* \param[in,out] data_set Cluster working set
*/
static void
unpack_node_lrm(pe_node_t *node, const xmlNode *xml, pe_working_set_t *data_set)
{
bool found_orphaned_container_filler = false;
// Drill down to lrm_resources section
xml = find_xml_node(xml, XML_CIB_TAG_LRM, FALSE);
if (xml == NULL) {
return;
}
xml = find_xml_node(xml, XML_LRM_TAG_RESOURCES, FALSE);
if (xml == NULL) {
return;
}
// Unpack each lrm_resource entry
for (const xmlNode *rsc_entry = first_named_child(xml, XML_LRM_TAG_RESOURCE);
rsc_entry != NULL; rsc_entry = crm_next_same_xml(rsc_entry)) {
pe_resource_t *rsc = unpack_lrm_resource(node, rsc_entry, data_set);
if ((rsc != NULL)
&& pcmk_is_set(rsc->flags, pe_rsc_orphan_container_filler)) {
found_orphaned_container_filler = true;
}
}
/* Now that all resource state has been unpacked for this node, map any
* orphaned container fillers to their container resource.
*/
if (found_orphaned_container_filler) {
handle_orphaned_container_fillers(xml, data_set);
}
}
static void
set_active(pe_resource_t * rsc)
{
const pe_resource_t *top = pe__const_top_resource(rsc, false);
if (top && pcmk_is_set(top->flags, pe_rsc_promotable)) {
rsc->role = pcmk_role_unpromoted;
} else {
rsc->role = pcmk_role_started;
}
}
static void
set_node_score(gpointer key, gpointer value, gpointer user_data)
{
pe_node_t *node = value;
int *score = user_data;
node->weight = *score;
}
#define XPATH_NODE_STATE "/" XML_TAG_CIB "/" XML_CIB_TAG_STATUS \
"/" XML_CIB_TAG_STATE
#define SUB_XPATH_LRM_RESOURCE "/" XML_CIB_TAG_LRM \
"/" XML_LRM_TAG_RESOURCES \
"/" XML_LRM_TAG_RESOURCE
#define SUB_XPATH_LRM_RSC_OP "/" XML_LRM_TAG_RSC_OP
static xmlNode *
find_lrm_op(const char *resource, const char *op, const char *node, const char *source,
int target_rc, pe_working_set_t *data_set)
{
GString *xpath = NULL;
xmlNode *xml = NULL;
CRM_CHECK((resource != NULL) && (op != NULL) && (node != NULL),
return NULL);
xpath = g_string_sized_new(256);
pcmk__g_strcat(xpath,
XPATH_NODE_STATE "[@" XML_ATTR_UNAME "='", node, "']"
SUB_XPATH_LRM_RESOURCE "[@" XML_ATTR_ID "='", resource, "']"
SUB_XPATH_LRM_RSC_OP "[@" XML_LRM_ATTR_TASK "='", op, "'",
NULL);
/* Need to check against transition_magic too? */
if ((source != NULL) && (strcmp(op, PCMK_ACTION_MIGRATE_TO) == 0)) {
pcmk__g_strcat(xpath,
" and @" XML_LRM_ATTR_MIGRATE_TARGET "='", source, "']",
NULL);
} else if ((source != NULL)
&& (strcmp(op, PCMK_ACTION_MIGRATE_FROM) == 0)) {
pcmk__g_strcat(xpath,
" and @" XML_LRM_ATTR_MIGRATE_SOURCE "='", source, "']",
NULL);
} else {
g_string_append_c(xpath, ']');
}
xml = get_xpath_object((const char *) xpath->str, data_set->input,
LOG_DEBUG);
g_string_free(xpath, TRUE);
if (xml && target_rc >= 0) {
int rc = PCMK_OCF_UNKNOWN_ERROR;
int status = PCMK_EXEC_ERROR;
crm_element_value_int(xml, XML_LRM_ATTR_RC, &rc);
crm_element_value_int(xml, XML_LRM_ATTR_OPSTATUS, &status);
if ((rc != target_rc) || (status != PCMK_EXEC_DONE)) {
return NULL;
}
}
return xml;
}
static xmlNode *
find_lrm_resource(const char *rsc_id, const char *node_name,
pe_working_set_t *data_set)
{
GString *xpath = NULL;
xmlNode *xml = NULL;
CRM_CHECK((rsc_id != NULL) && (node_name != NULL), return NULL);
xpath = g_string_sized_new(256);
pcmk__g_strcat(xpath,
XPATH_NODE_STATE "[@" XML_ATTR_UNAME "='", node_name, "']"
SUB_XPATH_LRM_RESOURCE "[@" XML_ATTR_ID "='", rsc_id, "']",
NULL);
xml = get_xpath_object((const char *) xpath->str, data_set->input,
LOG_DEBUG);
g_string_free(xpath, TRUE);
return xml;
}
/*!
* \internal
* \brief Check whether a resource has no completed action history on a node
*
* \param[in,out] rsc Resource to check
* \param[in] node_name Node to check
*
* \return true if \p rsc_id is unknown on \p node_name, otherwise false
*/
static bool
unknown_on_node(pe_resource_t *rsc, const char *node_name)
{
bool result = false;
xmlXPathObjectPtr search;
GString *xpath = g_string_sized_new(256);
pcmk__g_strcat(xpath,
XPATH_NODE_STATE "[@" XML_ATTR_UNAME "='", node_name, "']"
SUB_XPATH_LRM_RESOURCE "[@" XML_ATTR_ID "='", rsc->id, "']"
SUB_XPATH_LRM_RSC_OP "[@" XML_LRM_ATTR_RC "!='193']",
NULL);
search = xpath_search(rsc->cluster->input, (const char *) xpath->str);
result = (numXpathResults(search) == 0);
freeXpathObject(search);
g_string_free(xpath, TRUE);
return result;
}
/*!
* \brief Check whether a probe/monitor indicating the resource was not running
* on a node happened after some event
*
* \param[in] rsc_id Resource being checked
* \param[in] node_name Node being checked
* \param[in] xml_op Event that monitor is being compared to
* \param[in] same_node Whether the operations are on the same node
* \param[in,out] data_set Cluster working set
*
* \return true if such a monitor happened after event, false otherwise
*/
static bool
monitor_not_running_after(const char *rsc_id, const char *node_name,
const xmlNode *xml_op, bool same_node,
pe_working_set_t *data_set)
{
/* Any probe/monitor operation on the node indicating it was not running
* there
*/
xmlNode *monitor = find_lrm_op(rsc_id, PCMK_ACTION_MONITOR, node_name,
NULL, PCMK_OCF_NOT_RUNNING, data_set);
return (monitor && pe__is_newer_op(monitor, xml_op, same_node) > 0);
}
/*!
* \brief Check whether any non-monitor operation on a node happened after some
* event
*
* \param[in] rsc_id Resource being checked
* \param[in] node_name Node being checked
* \param[in] xml_op Event that non-monitor is being compared to
* \param[in] same_node Whether the operations are on the same node
* \param[in,out] data_set Cluster working set
*
* \return true if such a operation happened after event, false otherwise
*/
static bool
non_monitor_after(const char *rsc_id, const char *node_name,
const xmlNode *xml_op, bool same_node,
pe_working_set_t *data_set)
{
xmlNode *lrm_resource = NULL;
lrm_resource = find_lrm_resource(rsc_id, node_name, data_set);
if (lrm_resource == NULL) {
return false;
}
for (xmlNode *op = first_named_child(lrm_resource, XML_LRM_TAG_RSC_OP);
op != NULL; op = crm_next_same_xml(op)) {
const char * task = NULL;
if (op == xml_op) {
continue;
}
task = crm_element_value(op, XML_LRM_ATTR_TASK);
if (pcmk__str_any_of(task, PCMK_ACTION_START, PCMK_ACTION_STOP,
PCMK_ACTION_MIGRATE_TO, PCMK_ACTION_MIGRATE_FROM,
NULL)
&& pe__is_newer_op(op, xml_op, same_node) > 0) {
return true;
}
}
return false;
}
/*!
* \brief Check whether the resource has newer state on a node after a migration
* attempt
*
* \param[in] rsc_id Resource being checked
* \param[in] node_name Node being checked
* \param[in] migrate_to Any migrate_to event that is being compared to
* \param[in] migrate_from Any migrate_from event that is being compared to
* \param[in,out] data_set Cluster working set
*
* \return true if such a operation happened after event, false otherwise
*/
static bool
newer_state_after_migrate(const char *rsc_id, const char *node_name,
const xmlNode *migrate_to,
const xmlNode *migrate_from,
pe_working_set_t *data_set)
{
const xmlNode *xml_op = migrate_to;
const char *source = NULL;
const char *target = NULL;
bool same_node = false;
if (migrate_from) {
xml_op = migrate_from;
}
source = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_SOURCE);
target = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_TARGET);
/* It's preferred to compare to the migrate event on the same node if
* existing, since call ids are more reliable.
*/
if (pcmk__str_eq(node_name, target, pcmk__str_casei)) {
if (migrate_from) {
xml_op = migrate_from;
same_node = true;
} else {
xml_op = migrate_to;
}
} else if (pcmk__str_eq(node_name, source, pcmk__str_casei)) {
if (migrate_to) {
xml_op = migrate_to;
same_node = true;
} else {
xml_op = migrate_from;
}
}
/* If there's any newer non-monitor operation on the node, or any newer
* probe/monitor operation on the node indicating it was not running there,
* the migration events potentially no longer matter for the node.
*/
return non_monitor_after(rsc_id, node_name, xml_op, same_node, data_set)
|| monitor_not_running_after(rsc_id, node_name, xml_op, same_node,
data_set);
}
/*!
* \internal
* \brief Parse migration source and target node names from history entry
*
* \param[in] entry Resource history entry for a migration action
* \param[in] source_node If not NULL, source must match this node
* \param[in] target_node If not NULL, target must match this node
* \param[out] source_name Where to store migration source node name
* \param[out] target_name Where to store migration target node name
*
* \return Standard Pacemaker return code
*/
static int
get_migration_node_names(const xmlNode *entry, const pe_node_t *source_node,
const pe_node_t *target_node,
const char **source_name, const char **target_name)
{
*source_name = crm_element_value(entry, XML_LRM_ATTR_MIGRATE_SOURCE);
*target_name = crm_element_value(entry, XML_LRM_ATTR_MIGRATE_TARGET);
if ((*source_name == NULL) || (*target_name == NULL)) {
crm_err("Ignoring resource history entry %s without "
XML_LRM_ATTR_MIGRATE_SOURCE " and " XML_LRM_ATTR_MIGRATE_TARGET,
ID(entry));
return pcmk_rc_unpack_error;
}
if ((source_node != NULL)
&& !pcmk__str_eq(*source_name, source_node->details->uname,
pcmk__str_casei|pcmk__str_null_matches)) {
crm_err("Ignoring resource history entry %s because "
XML_LRM_ATTR_MIGRATE_SOURCE "='%s' does not match %s",
ID(entry), *source_name, pe__node_name(source_node));
return pcmk_rc_unpack_error;
}
if ((target_node != NULL)
&& !pcmk__str_eq(*target_name, target_node->details->uname,
pcmk__str_casei|pcmk__str_null_matches)) {
crm_err("Ignoring resource history entry %s because "
XML_LRM_ATTR_MIGRATE_TARGET "='%s' does not match %s",
ID(entry), *target_name, pe__node_name(target_node));
return pcmk_rc_unpack_error;
}
return pcmk_rc_ok;
}
/*
* \internal
* \brief Add a migration source to a resource's list of dangling migrations
*
* If the migrate_to and migrate_from actions in a live migration both
* succeeded, but there is no stop on the source, the migration is considered
* "dangling." Add the source to the resource's dangling migration list, which
* will be used to schedule a stop on the source without affecting the target.
*
* \param[in,out] rsc Resource involved in migration
* \param[in] node Migration source
*/
static void
add_dangling_migration(pe_resource_t *rsc, const pe_node_t *node)
{
pe_rsc_trace(rsc, "Dangling migration of %s requires stop on %s",
rsc->id, pe__node_name(node));
rsc->role = pcmk_role_stopped;
rsc->dangling_migrations = g_list_prepend(rsc->dangling_migrations,
(gpointer) node);
}
/*!
* \internal
* \brief Update resource role etc. after a successful migrate_to action
*
* \param[in,out] history Parsed action result history
*/
static void
unpack_migrate_to_success(struct action_history *history)
{
/* A complete migration sequence is:
* 1. migrate_to on source node (which succeeded if we get to this function)
* 2. migrate_from on target node
* 3. stop on source node
*
* If no migrate_from has happened, the migration is considered to be
* "partial". If the migrate_from succeeded but no stop has happened, the
* migration is considered to be "dangling".
*
* If a successful migrate_to and stop have happened on the source node, we
* still need to check for a partial migration, due to scenarios (easier to
* produce with batch-limit=1) like:
*
* - A resource is migrating from node1 to node2, and a migrate_to is
* initiated for it on node1.
*
* - node2 goes into standby mode while the migrate_to is pending, which
* aborts the transition.
*
* - Upon completion of the migrate_to, a new transition schedules a stop
* on both nodes and a start on node1.
*
* - If the new transition is aborted for any reason while the resource is
* stopping on node1, the transition after that stop completes will see
* the migrate_to and stop on the source, but it's still a partial
* migration, and the resource must be stopped on node2 because it is
* potentially active there due to the migrate_to.
*
* We also need to take into account that either node's history may be
* cleared at any point in the migration process.
*/
int from_rc = PCMK_OCF_OK;
int from_status = PCMK_EXEC_PENDING;
pe_node_t *target_node = NULL;
xmlNode *migrate_from = NULL;
const char *source = NULL;
const char *target = NULL;
bool source_newer_op = false;
bool target_newer_state = false;
bool active_on_target = false;
// Get source and target node names from XML
if (get_migration_node_names(history->xml, history->node, NULL, &source,
&target) != pcmk_rc_ok) {
return;
}
// Check for newer state on the source
source_newer_op = non_monitor_after(history->rsc->id, source, history->xml,
true, history->rsc->cluster);
// Check for a migrate_from action from this source on the target
migrate_from = find_lrm_op(history->rsc->id, PCMK_ACTION_MIGRATE_FROM,
target, source, -1, history->rsc->cluster);
if (migrate_from != NULL) {
if (source_newer_op) {
/* There's a newer non-monitor operation on the source and a
* migrate_from on the target, so this migrate_to is irrelevant to
* the resource's state.
*/
return;
}
crm_element_value_int(migrate_from, XML_LRM_ATTR_RC, &from_rc);
crm_element_value_int(migrate_from, XML_LRM_ATTR_OPSTATUS,
&from_status);
}
/* If the resource has newer state on both the source and target after the
* migration events, this migrate_to is irrelevant to the resource's state.
*/
target_newer_state = newer_state_after_migrate(history->rsc->id, target,
history->xml, migrate_from,
history->rsc->cluster);
if (source_newer_op && target_newer_state) {
return;
}
/* Check for dangling migration (migrate_from succeeded but stop not done).
* We know there's no stop because we already returned if the target has a
* migrate_from and the source has any newer non-monitor operation.
*/
if ((from_rc == PCMK_OCF_OK) && (from_status == PCMK_EXEC_DONE)) {
add_dangling_migration(history->rsc, history->node);
return;
}
/* Without newer state, this migrate_to implies the resource is active.
* (Clones are not allowed to migrate, so role can't be promoted.)
*/
history->rsc->role = pcmk_role_started;
target_node = pe_find_node(history->rsc->cluster->nodes, target);
active_on_target = !target_newer_state && (target_node != NULL)
&& target_node->details->online;
if (from_status != PCMK_EXEC_PENDING) { // migrate_from failed on target
if (active_on_target) {
native_add_running(history->rsc, target_node, history->rsc->cluster,
TRUE);
} else {
// Mark resource as failed, require recovery, and prevent migration
pe__set_resource_flags(history->rsc, pe_rsc_failed|pe_rsc_stop);
pe__clear_resource_flags(history->rsc, pe_rsc_allow_migrate);
}
return;
}
// The migrate_from is pending, complete but erased, or to be scheduled
/* If there is no history at all for the resource on an online target, then
* it was likely cleaned. Just return, and we'll schedule a probe. Once we
* have the probe result, it will be reflected in target_newer_state.
*/
if ((target_node != NULL) && target_node->details->online
&& unknown_on_node(history->rsc, target)) {
return;
}
if (active_on_target) {
pe_node_t *source_node = pe_find_node(history->rsc->cluster->nodes,
source);
native_add_running(history->rsc, target_node, history->rsc->cluster,
FALSE);
if ((source_node != NULL) && source_node->details->online) {
/* This is a partial migration: the migrate_to completed
* successfully on the source, but the migrate_from has not
* completed. Remember the source and target; if the newly
* chosen target remains the same when we schedule actions
* later, we may continue with the migration.
*/
history->rsc->partial_migration_target = target_node;
history->rsc->partial_migration_source = source_node;
}
} else if (!source_newer_op) {
// Mark resource as failed, require recovery, and prevent migration
pe__set_resource_flags(history->rsc, pe_rsc_failed|pe_rsc_stop);
pe__clear_resource_flags(history->rsc, pe_rsc_allow_migrate);
}
}
/*!
* \internal
* \brief Update resource role etc. after a failed migrate_to action
*
* \param[in,out] history Parsed action result history
*/
static void
unpack_migrate_to_failure(struct action_history *history)
{
xmlNode *target_migrate_from = NULL;
const char *source = NULL;
const char *target = NULL;
// Get source and target node names from XML
if (get_migration_node_names(history->xml, history->node, NULL, &source,
&target) != pcmk_rc_ok) {
return;
}
/* If a migration failed, we have to assume the resource is active. Clones
* are not allowed to migrate, so role can't be promoted.
*/
history->rsc->role = pcmk_role_started;
// Check for migrate_from on the target
target_migrate_from = find_lrm_op(history->rsc->id,
PCMK_ACTION_MIGRATE_FROM, target, source,
PCMK_OCF_OK, history->rsc->cluster);
if (/* If the resource state is unknown on the target, it will likely be
* probed there.
* Don't just consider it running there. We will get back here anyway in
* case the probe detects it's running there.
*/
!unknown_on_node(history->rsc, target)
/* If the resource has newer state on the target after the migration
* events, this migrate_to no longer matters for the target.
*/
&& !newer_state_after_migrate(history->rsc->id, target, history->xml,
target_migrate_from,
history->rsc->cluster)) {
/* The resource has no newer state on the target, so assume it's still
* active there.
* (if it is up).
*/
pe_node_t *target_node = pe_find_node(history->rsc->cluster->nodes,
target);
if (target_node && target_node->details->online) {
native_add_running(history->rsc, target_node, history->rsc->cluster,
FALSE);
}
} else if (!non_monitor_after(history->rsc->id, source, history->xml, true,
history->rsc->cluster)) {
/* We know the resource has newer state on the target, but this
* migrate_to still matters for the source as long as there's no newer
* non-monitor operation there.
*/
// Mark node as having dangling migration so we can force a stop later
history->rsc->dangling_migrations =
g_list_prepend(history->rsc->dangling_migrations,
(gpointer) history->node);
}
}
/*!
* \internal
* \brief Update resource role etc. after a failed migrate_from action
*
* \param[in,out] history Parsed action result history
*/
static void
unpack_migrate_from_failure(struct action_history *history)
{
xmlNode *source_migrate_to = NULL;
const char *source = NULL;
const char *target = NULL;
// Get source and target node names from XML
if (get_migration_node_names(history->xml, NULL, history->node, &source,
&target) != pcmk_rc_ok) {
return;
}
/* If a migration failed, we have to assume the resource is active. Clones
* are not allowed to migrate, so role can't be promoted.
*/
history->rsc->role = pcmk_role_started;
// Check for a migrate_to on the source
source_migrate_to = find_lrm_op(history->rsc->id, PCMK_ACTION_MIGRATE_TO,
source, target, PCMK_OCF_OK,
history->rsc->cluster);
if (/* If the resource state is unknown on the source, it will likely be
* probed there.
* Don't just consider it running there. We will get back here anyway in
* case the probe detects it's running there.
*/
!unknown_on_node(history->rsc, source)
/* If the resource has newer state on the source after the migration
* events, this migrate_from no longer matters for the source.
*/
&& !newer_state_after_migrate(history->rsc->id, source,
source_migrate_to, history->xml,
history->rsc->cluster)) {
/* The resource has no newer state on the source, so assume it's still
* active there (if it is up).
*/
pe_node_t *source_node = pe_find_node(history->rsc->cluster->nodes,
source);
if (source_node && source_node->details->online) {
native_add_running(history->rsc, source_node, history->rsc->cluster,
TRUE);
}
}
}
/*!
* \internal
* \brief Add an action to cluster's list of failed actions
*
* \param[in,out] history Parsed action result history
*/
static void
record_failed_op(struct action_history *history)
{
if (!(history->node->details->online)) {
return;
}
for (const xmlNode *xIter = history->rsc->cluster->failed->children;
xIter != NULL; xIter = xIter->next) {
const char *key = pe__xe_history_key(xIter);
const char *uname = crm_element_value(xIter, XML_ATTR_UNAME);
if (pcmk__str_eq(history->key, key, pcmk__str_none)
&& pcmk__str_eq(uname, history->node->details->uname,
pcmk__str_casei)) {
crm_trace("Skipping duplicate entry %s on %s",
history->key, pe__node_name(history->node));
return;
}
}
crm_trace("Adding entry for %s on %s to failed action list",
history->key, pe__node_name(history->node));
crm_xml_add(history->xml, XML_ATTR_UNAME, history->node->details->uname);
crm_xml_add(history->xml, XML_LRM_ATTR_RSCID, history->rsc->id);
add_node_copy(history->rsc->cluster->failed, history->xml);
}
static char *
last_change_str(const xmlNode *xml_op)
{
time_t when;
char *result = NULL;
if (crm_element_value_epoch(xml_op, XML_RSC_OP_LAST_CHANGE,
&when) == pcmk_ok) {
char *when_s = pcmk__epoch2str(&when, 0);
const char *p = strchr(when_s, ' ');
// Skip day of week to make message shorter
if ((p != NULL) && (*(++p) != '\0')) {
result = strdup(p);
CRM_ASSERT(result != NULL);
}
free(when_s);
}
if (result == NULL) {
result = strdup("unknown time");
CRM_ASSERT(result != NULL);
}
return result;
}
/*!
* \internal
* \brief Compare two on-fail values
*
* \param[in] first One on-fail value to compare
* \param[in] second The other on-fail value to compare
*
* \return A negative number if second is more severe than first, zero if they
* are equal, or a positive number if first is more severe than second.
* \note This is only needed until the action_fail_response values can be
* renumbered at the next API compatibility break.
*/
static int
cmp_on_fail(enum action_fail_response first, enum action_fail_response second)
{
switch (first) {
case pcmk_on_fail_demote:
switch (second) {
case pcmk_on_fail_ignore:
return 1;
case pcmk_on_fail_demote:
return 0;
default:
return -1;
}
break;
case pcmk_on_fail_reset_remote:
switch (second) {
case pcmk_on_fail_ignore:
case pcmk_on_fail_demote:
case pcmk_on_fail_restart:
return 1;
case pcmk_on_fail_reset_remote:
return 0;
default:
return -1;
}
break;
case pcmk_on_fail_restart_container:
switch (second) {
case pcmk_on_fail_ignore:
case pcmk_on_fail_demote:
case pcmk_on_fail_restart:
case pcmk_on_fail_reset_remote:
return 1;
case pcmk_on_fail_restart_container:
return 0;
default:
return -1;
}
break;
default:
break;
}
switch (second) {
case pcmk_on_fail_demote:
return (first == pcmk_on_fail_ignore)? -1 : 1;
case pcmk_on_fail_reset_remote:
switch (first) {
case pcmk_on_fail_ignore:
case pcmk_on_fail_demote:
case pcmk_on_fail_restart:
return -1;
default:
return 1;
}
break;
case pcmk_on_fail_restart_container:
switch (first) {
case pcmk_on_fail_ignore:
case pcmk_on_fail_demote:
case pcmk_on_fail_restart:
case pcmk_on_fail_reset_remote:
return -1;
default:
return 1;
}
break;
default:
break;
}
return first - second;
}
/*!
* \internal
* \brief Ban a resource (or its clone if an anonymous instance) from all nodes
*
* \param[in,out] rsc Resource to ban
*/
static void
ban_from_all_nodes(pe_resource_t *rsc)
{
int score = -INFINITY;
pe_resource_t *fail_rsc = rsc;
if (fail_rsc->parent != NULL) {
pe_resource_t *parent = uber_parent(fail_rsc);
if (pe_rsc_is_anon_clone(parent)) {
/* For anonymous clones, if an operation with on-fail=stop fails for
* any instance, the entire clone must stop.
*/
fail_rsc = parent;
}
}
// Ban the resource from all nodes
crm_notice("%s will not be started under current conditions", fail_rsc->id);
if (fail_rsc->allowed_nodes != NULL) {
g_hash_table_destroy(fail_rsc->allowed_nodes);
}
fail_rsc->allowed_nodes = pe__node_list2table(rsc->cluster->nodes);
g_hash_table_foreach(fail_rsc->allowed_nodes, set_node_score, &score);
}
/*!
* \internal
* \brief Update resource role, failure handling, etc., after a failed action
*
* \param[in,out] history Parsed action result history
* \param[out] last_failure Set this to action XML
* \param[in,out] on_fail What should be done about the result
*/
static void
unpack_rsc_op_failure(struct action_history *history, xmlNode **last_failure,
enum action_fail_response *on_fail)
{
bool is_probe = false;
pe_action_t *action = NULL;
char *last_change_s = NULL;
*last_failure = history->xml;
is_probe = pcmk_xe_is_probe(history->xml);
last_change_s = last_change_str(history->xml);
if (!pcmk_is_set(history->rsc->cluster->flags, pcmk_sched_symmetric_cluster)
&& (history->exit_status == PCMK_OCF_NOT_INSTALLED)) {
crm_trace("Unexpected result (%s%s%s) was recorded for "
"%s of %s on %s at %s " CRM_XS " exit-status=%d id=%s",
services_ocf_exitcode_str(history->exit_status),
(pcmk__str_empty(history->exit_reason)? "" : ": "),
pcmk__s(history->exit_reason, ""),
(is_probe? "probe" : history->task), history->rsc->id,
pe__node_name(history->node), last_change_s,
history->exit_status, history->id);
} else {
crm_warn("Unexpected result (%s%s%s) was recorded for "
"%s of %s on %s at %s " CRM_XS " exit-status=%d id=%s",
services_ocf_exitcode_str(history->exit_status),
(pcmk__str_empty(history->exit_reason)? "" : ": "),
pcmk__s(history->exit_reason, ""),
(is_probe? "probe" : history->task), history->rsc->id,
pe__node_name(history->node), last_change_s,
history->exit_status, history->id);
if (is_probe && (history->exit_status != PCMK_OCF_OK)
&& (history->exit_status != PCMK_OCF_NOT_RUNNING)
&& (history->exit_status != PCMK_OCF_RUNNING_PROMOTED)) {
/* A failed (not just unexpected) probe result could mean the user
* didn't know resources will be probed even where they can't run.
*/
crm_notice("If it is not possible for %s to run on %s, see "
"the resource-discovery option for location constraints",
history->rsc->id, pe__node_name(history->node));
}
record_failed_op(history);
}
free(last_change_s);
action = custom_action(history->rsc, strdup(history->key), history->task,
NULL, TRUE, FALSE, history->rsc->cluster);
if (cmp_on_fail(*on_fail, action->on_fail) < 0) {
pe_rsc_trace(history->rsc, "on-fail %s -> %s for %s (%s)",
fail2text(*on_fail), fail2text(action->on_fail),
action->uuid, history->key);
*on_fail = action->on_fail;
}
if (strcmp(history->task, PCMK_ACTION_STOP) == 0) {
resource_location(history->rsc, history->node, -INFINITY,
"__stop_fail__", history->rsc->cluster);
} else if (strcmp(history->task, PCMK_ACTION_MIGRATE_TO) == 0) {
unpack_migrate_to_failure(history);
} else if (strcmp(history->task, PCMK_ACTION_MIGRATE_FROM) == 0) {
unpack_migrate_from_failure(history);
} else if (strcmp(history->task, PCMK_ACTION_PROMOTE) == 0) {
history->rsc->role = pcmk_role_promoted;
} else if (strcmp(history->task, PCMK_ACTION_DEMOTE) == 0) {
if (action->on_fail == pcmk_on_fail_block) {
history->rsc->role = pcmk_role_promoted;
pe__set_next_role(history->rsc, pcmk_role_stopped,
"demote with on-fail=block");
} else if (history->exit_status == PCMK_OCF_NOT_RUNNING) {
history->rsc->role = pcmk_role_stopped;
} else {
/* Staying in the promoted role would put the scheduler and
* controller into a loop. Setting the role to unpromoted is not
* dangerous because the resource will be stopped as part of
* recovery, and any promotion will be ordered after that stop.
*/
history->rsc->role = pcmk_role_unpromoted;
}
}
if (is_probe && (history->exit_status == PCMK_OCF_NOT_INSTALLED)) {
/* leave stopped */
pe_rsc_trace(history->rsc, "Leaving %s stopped", history->rsc->id);
history->rsc->role = pcmk_role_stopped;
} else if (history->rsc->role < pcmk_role_started) {
pe_rsc_trace(history->rsc, "Setting %s active", history->rsc->id);
set_active(history->rsc);
}
pe_rsc_trace(history->rsc,
"Resource %s: role=%s, unclean=%s, on_fail=%s, fail_role=%s",
history->rsc->id, role2text(history->rsc->role),
pcmk__btoa(history->node->details->unclean),
fail2text(action->on_fail), role2text(action->fail_role));
if ((action->fail_role != pcmk_role_started)
&& (history->rsc->next_role < action->fail_role)) {
pe__set_next_role(history->rsc, action->fail_role, "failure");
}
if (action->fail_role == pcmk_role_stopped) {
ban_from_all_nodes(history->rsc);
}
pe_free_action(action);
}
/*!
* \internal
* \brief Block a resource with a failed action if it cannot be recovered
*
* If resource action is a failed stop and fencing is not possible, mark the
* resource as unmanaged and blocked, since recovery cannot be done.
*
* \param[in,out] history Parsed action history entry
*/
static void
block_if_unrecoverable(struct action_history *history)
{
char *last_change_s = NULL;
if (strcmp(history->task, PCMK_ACTION_STOP) != 0) {
return; // All actions besides stop are always recoverable
}
if (pe_can_fence(history->node->details->data_set, history->node)) {
return; // Failed stops are recoverable via fencing
}
last_change_s = last_change_str(history->xml);
pe_proc_err("No further recovery can be attempted for %s "
"because %s on %s failed (%s%s%s) at %s "
CRM_XS " rc=%d id=%s",
history->rsc->id, history->task, pe__node_name(history->node),
services_ocf_exitcode_str(history->exit_status),
(pcmk__str_empty(history->exit_reason)? "" : ": "),
pcmk__s(history->exit_reason, ""),
last_change_s, history->exit_status, history->id);
free(last_change_s);
pe__clear_resource_flags(history->rsc, pe_rsc_managed);
pe__set_resource_flags(history->rsc, pe_rsc_block);
}
/*!
* \internal
* \brief Update action history's execution status and why
*
* \param[in,out] history Parsed action history entry
* \param[out] why Where to store reason for update
* \param[in] value New value
* \param[in] reason Description of why value was changed
*/
static inline void
remap_because(struct action_history *history, const char **why, int value,
const char *reason)
{
if (history->execution_status != value) {
history->execution_status = value;
*why = reason;
}
}
/*!
* \internal
* \brief Remap informational monitor results and operation status
*
* For the monitor results, certain OCF codes are for providing extended information
* to the user about services that aren't yet failed but not entirely healthy either.
* These must be treated as the "normal" result by Pacemaker.
*
* For operation status, the action result can be used to determine an appropriate
* status for the purposes of responding to the action. The status provided by the
* executor is not directly usable since the executor does not know what was expected.
*
* \param[in,out] history Parsed action history entry
* \param[in,out] on_fail What should be done about the result
* \param[in] expired Whether result is expired
*
* \note If the result is remapped and the node is not shutting down or failed,
* the operation will be recorded in the data set's list of failed operations
* to highlight it for the user.
*
* \note This may update the resource's current and next role.
*/
static void
remap_operation(struct action_history *history,
enum action_fail_response *on_fail, bool expired)
{
bool is_probe = false;
int orig_exit_status = history->exit_status;
int orig_exec_status = history->execution_status;
const char *why = NULL;
const char *task = history->task;
// Remap degraded results to their successful counterparts
history->exit_status = pcmk__effective_rc(history->exit_status);
if (history->exit_status != orig_exit_status) {
why = "degraded result";
if (!expired && (!history->node->details->shutdown
|| history->node->details->online)) {
record_failed_op(history);
}
}
if (!pe_rsc_is_bundled(history->rsc)
&& pcmk_xe_mask_probe_failure(history->xml)
&& ((history->execution_status != PCMK_EXEC_DONE)
|| (history->exit_status != PCMK_OCF_NOT_RUNNING))) {
history->execution_status = PCMK_EXEC_DONE;
history->exit_status = PCMK_OCF_NOT_RUNNING;
why = "equivalent probe result";
}
/* If the executor reported an execution status of anything but done or
* error, consider that final. But for done or error, we know better whether
* it should be treated as a failure or not, because we know the expected
* result.
*/
switch (history->execution_status) {
case PCMK_EXEC_DONE:
case PCMK_EXEC_ERROR:
break;
// These should be treated as node-fatal
case PCMK_EXEC_NO_FENCE_DEVICE:
case PCMK_EXEC_NO_SECRETS:
remap_because(history, &why, PCMK_EXEC_ERROR_HARD,
"node-fatal error");
goto remap_done;
default:
goto remap_done;
}
is_probe = pcmk_xe_is_probe(history->xml);
if (is_probe) {
task = "probe";
}
if (history->expected_exit_status < 0) {
/* Pre-1.0 Pacemaker versions, and Pacemaker 1.1.6 or earlier with
* Heartbeat 2.0.7 or earlier as the cluster layer, did not include the
* expected exit status in the transition key, which (along with the
* similar case of a corrupted transition key in the CIB) will be
* reported to this function as -1. Pacemaker 2.0+ does not support
* rolling upgrades from those versions or processing of saved CIB files
* from those versions, so we do not need to care much about this case.
*/
remap_because(history, &why, PCMK_EXEC_ERROR,
"obsolete history format");
crm_warn("Expected result not found for %s on %s "
"(corrupt or obsolete CIB?)",
history->key, pe__node_name(history->node));
} else if (history->exit_status == history->expected_exit_status) {
remap_because(history, &why, PCMK_EXEC_DONE, "expected result");
} else {
remap_because(history, &why, PCMK_EXEC_ERROR, "unexpected result");
pe_rsc_debug(history->rsc,
"%s on %s: expected %d (%s), got %d (%s%s%s)",
history->key, pe__node_name(history->node),
history->expected_exit_status,
services_ocf_exitcode_str(history->expected_exit_status),
history->exit_status,
services_ocf_exitcode_str(history->exit_status),
(pcmk__str_empty(history->exit_reason)? "" : ": "),
pcmk__s(history->exit_reason, ""));
}
switch (history->exit_status) {
case PCMK_OCF_OK:
if (is_probe
&& (history->expected_exit_status == PCMK_OCF_NOT_RUNNING)) {
char *last_change_s = last_change_str(history->xml);
remap_because(history, &why, PCMK_EXEC_DONE, "probe");
pe_rsc_info(history->rsc, "Probe found %s active on %s at %s",
history->rsc->id, pe__node_name(history->node),
last_change_s);
free(last_change_s);
}
break;
case PCMK_OCF_NOT_RUNNING:
if (is_probe
|| (history->expected_exit_status == history->exit_status)
|| !pcmk_is_set(history->rsc->flags, pe_rsc_managed)) {
/* For probes, recurring monitors for the Stopped role, and
* unmanaged resources, "not running" is not considered a
* failure.
*/
remap_because(history, &why, PCMK_EXEC_DONE, "exit status");
history->rsc->role = pcmk_role_stopped;
*on_fail = pcmk_on_fail_ignore;
pe__set_next_role(history->rsc, pcmk_role_unknown,
"not running");
}
break;
case PCMK_OCF_RUNNING_PROMOTED:
if (is_probe
&& (history->exit_status != history->expected_exit_status)) {
char *last_change_s = last_change_str(history->xml);
remap_because(history, &why, PCMK_EXEC_DONE, "probe");
pe_rsc_info(history->rsc,
"Probe found %s active and promoted on %s at %s",
history->rsc->id, pe__node_name(history->node),
last_change_s);
free(last_change_s);
}
if (!expired
|| (history->exit_status == history->expected_exit_status)) {
history->rsc->role = pcmk_role_promoted;
}
break;
case PCMK_OCF_FAILED_PROMOTED:
if (!expired) {
history->rsc->role = pcmk_role_promoted;
}
remap_because(history, &why, PCMK_EXEC_ERROR, "exit status");
break;
case PCMK_OCF_NOT_CONFIGURED:
remap_because(history, &why, PCMK_EXEC_ERROR_FATAL, "exit status");
break;
case PCMK_OCF_UNIMPLEMENT_FEATURE:
{
guint interval_ms = 0;
crm_element_value_ms(history->xml, XML_LRM_ATTR_INTERVAL_MS,
&interval_ms);
if (interval_ms == 0) {
if (!expired) {
block_if_unrecoverable(history);
}
remap_because(history, &why, PCMK_EXEC_ERROR_HARD,
"exit status");
} else {
remap_because(history, &why, PCMK_EXEC_NOT_SUPPORTED,
"exit status");
}
}
break;
case PCMK_OCF_NOT_INSTALLED:
case PCMK_OCF_INVALID_PARAM:
case PCMK_OCF_INSUFFICIENT_PRIV:
if (!expired) {
block_if_unrecoverable(history);
}
remap_because(history, &why, PCMK_EXEC_ERROR_HARD, "exit status");
break;
default:
if (history->execution_status == PCMK_EXEC_DONE) {
char *last_change_s = last_change_str(history->xml);
crm_info("Treating unknown exit status %d from %s of %s "
"on %s at %s as failure",
history->exit_status, task, history->rsc->id,
pe__node_name(history->node), last_change_s);
remap_because(history, &why, PCMK_EXEC_ERROR,
"unknown exit status");
free(last_change_s);
}
break;
}
remap_done:
if (why != NULL) {
pe_rsc_trace(history->rsc,
"Remapped %s result from [%s: %s] to [%s: %s] "
"because of %s",
history->key, pcmk_exec_status_str(orig_exec_status),
crm_exit_str(orig_exit_status),
pcmk_exec_status_str(history->execution_status),
crm_exit_str(history->exit_status), why);
}
}
// return TRUE if start or monitor last failure but parameters changed
static bool
should_clear_for_param_change(const xmlNode *xml_op, const char *task,
pe_resource_t *rsc, pe_node_t *node)
{
if (pcmk__str_any_of(task, PCMK_ACTION_START, PCMK_ACTION_MONITOR, NULL)) {
if (pe__bundle_needs_remote_name(rsc)) {
/* We haven't allocated resources yet, so we can't reliably
* substitute addr parameters for the REMOTE_CONTAINER_HACK.
* When that's needed, defer the check until later.
*/
pe__add_param_check(xml_op, rsc, node, pcmk__check_last_failure,
rsc->cluster);
} else {
op_digest_cache_t *digest_data = NULL;
digest_data = rsc_action_digest_cmp(rsc, xml_op, node,
rsc->cluster);
switch (digest_data->rc) {
case RSC_DIGEST_UNKNOWN:
crm_trace("Resource %s history entry %s on %s"
" has no digest to compare",
rsc->id, pe__xe_history_key(xml_op),
node->details->id);
break;
case RSC_DIGEST_MATCH:
break;
default:
return TRUE;
}
}
}
return FALSE;
}
// Order action after fencing of remote node, given connection rsc
static void
order_after_remote_fencing(pe_action_t *action, pe_resource_t *remote_conn,
pe_working_set_t *data_set)
{
pe_node_t *remote_node = pe_find_node(data_set->nodes, remote_conn->id);
if (remote_node) {
pe_action_t *fence = pe_fence_op(remote_node, NULL, TRUE, NULL,
FALSE, data_set);
order_actions(fence, action, pe_order_implies_then);
}
}
static bool
should_ignore_failure_timeout(const pe_resource_t *rsc, const char *task,
guint interval_ms, bool is_last_failure)
{
/* Clearing failures of recurring monitors has special concerns. The
* executor reports only changes in the monitor result, so if the
* monitor is still active and still getting the same failure result,
* that will go undetected after the failure is cleared.
*
* Also, the operation history will have the time when the recurring
* monitor result changed to the given code, not the time when the
* result last happened.
*
* @TODO We probably should clear such failures only when the failure
* timeout has passed since the last occurrence of the failed result.
* However we don't record that information. We could maybe approximate
* that by clearing only if there is a more recent successful monitor or
* stop result, but we don't even have that information at this point
* since we are still unpacking the resource's operation history.
*
* This is especially important for remote connection resources with a
* reconnect interval, so in that case, we skip clearing failures
* if the remote node hasn't been fenced.
*/
if (rsc->remote_reconnect_ms
&& pcmk_is_set(rsc->cluster->flags, pcmk_sched_fencing_enabled)
&& (interval_ms != 0)
&& pcmk__str_eq(task, PCMK_ACTION_MONITOR, pcmk__str_casei)) {
pe_node_t *remote_node = pe_find_node(rsc->cluster->nodes, rsc->id);
if (remote_node && !remote_node->details->remote_was_fenced) {
if (is_last_failure) {
crm_info("Waiting to clear monitor failure for remote node %s"
" until fencing has occurred", rsc->id);
}
return TRUE;
}
}
return FALSE;
}
/*!
* \internal
* \brief Check operation age and schedule failure clearing when appropriate
*
* This function has two distinct purposes. The first is to check whether an
* operation history entry is expired (i.e. the resource has a failure timeout,
* the entry is older than the timeout, and the resource either has no fail
* count or its fail count is entirely older than the timeout). The second is to
* schedule fail count clearing when appropriate (i.e. the operation is expired
* and either the resource has an expired fail count or the operation is a
* last_failure for a remote connection resource with a reconnect interval,
* or the operation is a last_failure for a start or monitor operation and the
* resource's parameters have changed since the operation).
*
* \param[in,out] history Parsed action result history
*
* \return true if operation history entry is expired, otherwise false
*/
static bool
check_operation_expiry(struct action_history *history)
{
bool expired = false;
bool is_last_failure = pcmk__ends_with(history->id, "_last_failure_0");
time_t last_run = 0;
int unexpired_fail_count = 0;
const char *clear_reason = NULL;
if (history->execution_status == PCMK_EXEC_NOT_INSTALLED) {
pe_rsc_trace(history->rsc,
"Resource history entry %s on %s is not expired: "
"Not Installed does not expire",
history->id, pe__node_name(history->node));
return false; // "Not installed" must always be cleared manually
}
if ((history->rsc->failure_timeout > 0)
&& (crm_element_value_epoch(history->xml, XML_RSC_OP_LAST_CHANGE,
&last_run) == 0)) {
// Resource has a failure-timeout, and history entry has a timestamp
time_t now = get_effective_time(history->rsc->cluster);
time_t last_failure = 0;
// Is this particular operation history older than the failure timeout?
if ((now >= (last_run + history->rsc->failure_timeout))
&& !should_ignore_failure_timeout(history->rsc, history->task,
history->interval_ms,
is_last_failure)) {
expired = true;
}
// Does the resource as a whole have an unexpired fail count?
unexpired_fail_count = pe_get_failcount(history->node, history->rsc,
&last_failure, pe_fc_effective,
history->xml);
// Update scheduler recheck time according to *last* failure
crm_trace("%s@%lld is %sexpired @%lld with unexpired_failures=%d timeout=%ds"
" last-failure@%lld",
history->id, (long long) last_run, (expired? "" : "not "),
(long long) now, unexpired_fail_count,
history->rsc->failure_timeout, (long long) last_failure);
last_failure += history->rsc->failure_timeout + 1;
if (unexpired_fail_count && (now < last_failure)) {
pe__update_recheck_time(last_failure, history->rsc->cluster);
}
}
if (expired) {
if (pe_get_failcount(history->node, history->rsc, NULL, pe_fc_default,
history->xml)) {
// There is a fail count ignoring timeout
if (unexpired_fail_count == 0) {
// There is no fail count considering timeout
clear_reason = "it expired";
} else {
/* This operation is old, but there is an unexpired fail count.
* In a properly functioning cluster, this should only be
* possible if this operation is not a failure (otherwise the
* fail count should be expired too), so this is really just a
* failsafe.
*/
pe_rsc_trace(history->rsc,
"Resource history entry %s on %s is not expired: "
"Unexpired fail count",
history->id, pe__node_name(history->node));
expired = false;
}
} else if (is_last_failure
&& (history->rsc->remote_reconnect_ms != 0)) {
/* Clear any expired last failure when reconnect interval is set,
* even if there is no fail count.
*/
clear_reason = "reconnect interval is set";
}
}
if (!expired && is_last_failure
&& should_clear_for_param_change(history->xml, history->task,
history->rsc, history->node)) {
clear_reason = "resource parameters have changed";
}
if (clear_reason != NULL) {
// Schedule clearing of the fail count
pe_action_t *clear_op = pe__clear_failcount(history->rsc, history->node,
clear_reason,
history->rsc->cluster);
if (pcmk_is_set(history->rsc->cluster->flags,
pcmk_sched_fencing_enabled)
&& (history->rsc->remote_reconnect_ms != 0)) {
/* If we're clearing a remote connection due to a reconnect
* interval, we want to wait until any scheduled fencing
* completes.
*
* We could limit this to remote_node->details->unclean, but at
* this point, that's always true (it won't be reliable until
* after unpack_node_history() is done).
*/
crm_info("Clearing %s failure will wait until any scheduled "
"fencing of %s completes",
history->task, history->rsc->id);
order_after_remote_fencing(clear_op, history->rsc,
history->rsc->cluster);
}
}
if (expired && (history->interval_ms == 0)
&& pcmk__str_eq(history->task, PCMK_ACTION_MONITOR, pcmk__str_none)) {
switch (history->exit_status) {
case PCMK_OCF_OK:
case PCMK_OCF_NOT_RUNNING:
case PCMK_OCF_RUNNING_PROMOTED:
case PCMK_OCF_DEGRADED:
case PCMK_OCF_DEGRADED_PROMOTED:
// Don't expire probes that return these values
pe_rsc_trace(history->rsc,
"Resource history entry %s on %s is not expired: "
"Probe result",
history->id, pe__node_name(history->node));
expired = false;
break;
}
}
return expired;
}
int
pe__target_rc_from_xml(const xmlNode *xml_op)
{
int target_rc = 0;
const char *key = crm_element_value(xml_op, XML_ATTR_TRANSITION_KEY);
if (key == NULL) {
return -1;
}
decode_transition_key(key, NULL, NULL, NULL, &target_rc);
return target_rc;
}
/*!
* \internal
* \brief Get the failure handling for an action
*
* \param[in,out] history Parsed action history entry
*
* \return Failure handling appropriate to action
*/
static enum action_fail_response
get_action_on_fail(struct action_history *history)
{
enum action_fail_response result = pcmk_on_fail_restart;
pe_action_t *action = custom_action(history->rsc, strdup(history->key),
history->task, NULL, TRUE, FALSE,
history->rsc->cluster);
result = action->on_fail;
pe_free_action(action);
return result;
}
/*!
* \internal
* \brief Update a resource's state for an action result
*
* \param[in,out] history Parsed action history entry
* \param[in] exit_status Exit status to base new state on
* \param[in] last_failure Resource's last_failure entry, if known
* \param[in,out] on_fail Resource's current failure handling
*/
static void
update_resource_state(struct action_history *history, int exit_status,
const xmlNode *last_failure,
enum action_fail_response *on_fail)
{
bool clear_past_failure = false;
if ((exit_status == PCMK_OCF_NOT_INSTALLED)
|| (!pe_rsc_is_bundled(history->rsc)
&& pcmk_xe_mask_probe_failure(history->xml))) {
history->rsc->role = pcmk_role_stopped;
} else if (exit_status == PCMK_OCF_NOT_RUNNING) {
clear_past_failure = true;
} else if (pcmk__str_eq(history->task, PCMK_ACTION_MONITOR,
pcmk__str_none)) {
if ((last_failure != NULL)
&& pcmk__str_eq(history->key, pe__xe_history_key(last_failure),
pcmk__str_none)) {
clear_past_failure = true;
}
if (history->rsc->role < pcmk_role_started) {
set_active(history->rsc);
}
} else if (pcmk__str_eq(history->task, PCMK_ACTION_START, pcmk__str_none)) {
history->rsc->role = pcmk_role_started;
clear_past_failure = true;
} else if (pcmk__str_eq(history->task, PCMK_ACTION_STOP, pcmk__str_none)) {
history->rsc->role = pcmk_role_stopped;
clear_past_failure = true;
} else if (pcmk__str_eq(history->task, PCMK_ACTION_PROMOTE,
pcmk__str_none)) {
history->rsc->role = pcmk_role_promoted;
clear_past_failure = true;
} else if (pcmk__str_eq(history->task, PCMK_ACTION_DEMOTE,
pcmk__str_none)) {
if (*on_fail == pcmk_on_fail_demote) {
// Demote clears an error only if on-fail=demote
clear_past_failure = true;
}
history->rsc->role = pcmk_role_unpromoted;
} else if (pcmk__str_eq(history->task, PCMK_ACTION_MIGRATE_FROM,
pcmk__str_none)) {
history->rsc->role = pcmk_role_started;
clear_past_failure = true;
} else if (pcmk__str_eq(history->task, PCMK_ACTION_MIGRATE_TO,
pcmk__str_none)) {
unpack_migrate_to_success(history);
} else if (history->rsc->role < pcmk_role_started) {
pe_rsc_trace(history->rsc, "%s active on %s",
history->rsc->id, pe__node_name(history->node));
set_active(history->rsc);
}
if (!clear_past_failure) {
return;
}
switch (*on_fail) {
case pcmk_on_fail_stop:
case pcmk_on_fail_ban:
case pcmk_on_fail_standby_node:
case pcmk_on_fail_fence_node:
pe_rsc_trace(history->rsc,
"%s (%s) is not cleared by a completed %s",
history->rsc->id, fail2text(*on_fail), history->task);
break;
case pcmk_on_fail_block:
case pcmk_on_fail_ignore:
case pcmk_on_fail_demote:
case pcmk_on_fail_restart:
case pcmk_on_fail_restart_container:
*on_fail = pcmk_on_fail_ignore;
pe__set_next_role(history->rsc, pcmk_role_unknown,
"clear past failures");
break;
case pcmk_on_fail_reset_remote:
if (history->rsc->remote_reconnect_ms == 0) {
/* With no reconnect interval, the connection is allowed to
* start again after the remote node is fenced and
* completely stopped. (With a reconnect interval, we wait
* for the failure to be cleared entirely before attempting
* to reconnect.)
*/
*on_fail = pcmk_on_fail_ignore;
pe__set_next_role(history->rsc, pcmk_role_unknown,
"clear past failures and reset remote");
}
break;
}
}
/*!
* \internal
* \brief Check whether a given history entry matters for resource state
*
* \param[in] history Parsed action history entry
*
* \return true if action can affect resource state, otherwise false
*/
static inline bool
can_affect_state(struct action_history *history)
{
#if 0
/* @COMPAT It might be better to parse only actions we know we're interested
* in, rather than exclude a couple we don't. However that would be a
* behavioral change that should be done at a major or minor series release.
* Currently, unknown operations can affect whether a resource is considered
* active and/or failed.
*/
return pcmk__str_any_of(history->task, PCMK_ACTION_MONITOR,
PCMK_ACTION_START, PCMK_ACTION_STOP,
PCMK_ACTION_PROMOTE, PCMK_ACTION_DEMOTE,
PCMK_ACTION_MIGRATE_TO, PCMK_ACTION_MIGRATE_FROM,
"asyncmon", NULL);
#else
return !pcmk__str_any_of(history->task, PCMK_ACTION_NOTIFY,
PCMK_ACTION_META_DATA, NULL);
#endif
}
/*!
* \internal
* \brief Unpack execution/exit status and exit reason from a history entry
*
* \param[in,out] history Action history entry to unpack
*
* \return Standard Pacemaker return code
*/
static int
unpack_action_result(struct action_history *history)
{
if ((crm_element_value_int(history->xml, XML_LRM_ATTR_OPSTATUS,
&(history->execution_status)) < 0)
|| (history->execution_status < PCMK_EXEC_PENDING)
|| (history->execution_status > PCMK_EXEC_MAX)
|| (history->execution_status == PCMK_EXEC_CANCELLED)) {
crm_err("Ignoring resource history entry %s for %s on %s "
"with invalid " XML_LRM_ATTR_OPSTATUS " '%s'",
history->id, history->rsc->id, pe__node_name(history->node),
pcmk__s(crm_element_value(history->xml, XML_LRM_ATTR_OPSTATUS),
""));
return pcmk_rc_unpack_error;
}
if ((crm_element_value_int(history->xml, XML_LRM_ATTR_RC,
&(history->exit_status)) < 0)
|| (history->exit_status < 0) || (history->exit_status > CRM_EX_MAX)) {
#if 0
/* @COMPAT We should ignore malformed entries, but since that would
* change behavior, it should be done at a major or minor series
* release.
*/
crm_err("Ignoring resource history entry %s for %s on %s "
"with invalid " XML_LRM_ATTR_RC " '%s'",
history->id, history->rsc->id, pe__node_name(history->node),
pcmk__s(crm_element_value(history->xml, XML_LRM_ATTR_RC),
""));
return pcmk_rc_unpack_error;
#else
history->exit_status = CRM_EX_ERROR;
#endif
}
history->exit_reason = crm_element_value(history->xml,
XML_LRM_ATTR_EXIT_REASON);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Process an action history entry whose result expired
*
* \param[in,out] history Parsed action history entry
* \param[in] orig_exit_status Action exit status before remapping
*
* \return Standard Pacemaker return code (in particular, pcmk_rc_ok means the
* entry needs no further processing)
*/
static int
process_expired_result(struct action_history *history, int orig_exit_status)
{
if (!pe_rsc_is_bundled(history->rsc)
&& pcmk_xe_mask_probe_failure(history->xml)
&& (orig_exit_status != history->expected_exit_status)) {
if (history->rsc->role <= pcmk_role_stopped) {
history->rsc->role = pcmk_role_unknown;
}
crm_trace("Ignoring resource history entry %s for probe of %s on %s: "
"Masked failure expired",
history->id, history->rsc->id,
pe__node_name(history->node));
return pcmk_rc_ok;
}
if (history->exit_status == history->expected_exit_status) {
return pcmk_rc_undetermined; // Only failures expire
}
if (history->interval_ms == 0) {
crm_notice("Ignoring resource history entry %s for %s of %s on %s: "
"Expired failure",
history->id, history->task, history->rsc->id,
pe__node_name(history->node));
return pcmk_rc_ok;
}
if (history->node->details->online && !history->node->details->unclean) {
/* Reschedule the recurring action. schedule_cancel() won't work at
* this stage, so as a hacky workaround, forcibly change the restart
* digest so pcmk__check_action_config() does what we want later.
*
* @TODO We should skip this if there is a newer successful monitor.
* Also, this causes rescheduling only if the history entry
* has an op-digest (which the expire-non-blocked-failure
* scheduler regression test doesn't, but that may not be a
* realistic scenario in production).
*/
crm_notice("Rescheduling %s-interval %s of %s on %s "
"after failure expired",
pcmk__readable_interval(history->interval_ms), history->task,
history->rsc->id, pe__node_name(history->node));
crm_xml_add(history->xml, XML_LRM_ATTR_RESTART_DIGEST,
"calculated-failure-timeout");
return pcmk_rc_ok;
}
return pcmk_rc_undetermined;
}
/*!
* \internal
* \brief Process a masked probe failure
*
* \param[in,out] history Parsed action history entry
* \param[in] orig_exit_status Action exit status before remapping
* \param[in] last_failure Resource's last_failure entry, if known
* \param[in,out] on_fail Resource's current failure handling
*/
static void
mask_probe_failure(struct action_history *history, int orig_exit_status,
const xmlNode *last_failure,
enum action_fail_response *on_fail)
{
pe_resource_t *ban_rsc = history->rsc;
if (!pcmk_is_set(history->rsc->flags, pe_rsc_unique)) {
ban_rsc = uber_parent(history->rsc);
}
crm_notice("Treating probe result '%s' for %s on %s as 'not running'",
services_ocf_exitcode_str(orig_exit_status), history->rsc->id,
pe__node_name(history->node));
update_resource_state(history, history->expected_exit_status, last_failure,
on_fail);
crm_xml_add(history->xml, XML_ATTR_UNAME, history->node->details->uname);
record_failed_op(history);
resource_location(ban_rsc, history->node, -INFINITY, "masked-probe-failure",
history->rsc->cluster);
}
/*!
* \internal Check whether a given failure is for a given pending action
*
* \param[in] history Parsed history entry for pending action
* \param[in] last_failure Resource's last_failure entry, if known
*
* \return true if \p last_failure is failure of pending action in \p history,
* otherwise false
* \note Both \p history and \p last_failure must come from the same
* lrm_resource block, as node and resource are assumed to be the same.
*/
static bool
failure_is_newer(const struct action_history *history,
const xmlNode *last_failure)
{
guint failure_interval_ms = 0U;
long long failure_change = 0LL;
long long this_change = 0LL;
if (last_failure == NULL) {
return false; // Resource has no last_failure entry
}
if (!pcmk__str_eq(history->task,
crm_element_value(last_failure, XML_LRM_ATTR_TASK),
pcmk__str_none)) {
return false; // last_failure is for different action
}
if ((crm_element_value_ms(last_failure, XML_LRM_ATTR_INTERVAL_MS,
&failure_interval_ms) != pcmk_ok)
|| (history->interval_ms != failure_interval_ms)) {
return false; // last_failure is for action with different interval
}
if ((pcmk__scan_ll(crm_element_value(history->xml, XML_RSC_OP_LAST_CHANGE),
&this_change, 0LL) != pcmk_rc_ok)
|| (pcmk__scan_ll(crm_element_value(last_failure,
XML_RSC_OP_LAST_CHANGE),
&failure_change, 0LL) != pcmk_rc_ok)
|| (failure_change < this_change)) {
return false; // Failure is not known to be newer
}
return true;
}
/*!
* \internal
* \brief Update a resource's role etc. for a pending action
*
* \param[in,out] history Parsed history entry for pending action
* \param[in] last_failure Resource's last_failure entry, if known
*/
static void
process_pending_action(struct action_history *history,
const xmlNode *last_failure)
{
/* For recurring monitors, a failure is recorded only in RSC_last_failure_0,
* and there might be a RSC_monitor_INTERVAL entry with the last successful
* or pending result.
*
* If last_failure contains the failure of the pending recurring monitor
* we're processing here, and is newer, the action is no longer pending.
* (Pending results have call ID -1, which sorts last, so the last failure
* if any should be known.)
*/
if (failure_is_newer(history, last_failure)) {
return;
}
if (strcmp(history->task, PCMK_ACTION_START) == 0) {
pe__set_resource_flags(history->rsc, pe_rsc_start_pending);
set_active(history->rsc);
} else if (strcmp(history->task, PCMK_ACTION_PROMOTE) == 0) {
history->rsc->role = pcmk_role_promoted;
} else if ((strcmp(history->task, PCMK_ACTION_MIGRATE_TO) == 0)
&& history->node->details->unclean) {
/* A migrate_to action is pending on a unclean source, so force a stop
* on the target.
*/
const char *migrate_target = NULL;
pe_node_t *target = NULL;
migrate_target = crm_element_value(history->xml,
XML_LRM_ATTR_MIGRATE_TARGET);
target = pe_find_node(history->rsc->cluster->nodes, migrate_target);
if (target != NULL) {
stop_action(history->rsc, target, FALSE);
}
}
if (history->rsc->pending_task != NULL) {
/* There should never be multiple pending actions, but as a failsafe,
* just remember the first one processed for display purposes.
*/
return;
}
if (pcmk_is_probe(history->task, history->interval_ms)) {
/* Pending probes are currently never displayed, even if pending
* operations are requested. If we ever want to change that,
* enable the below and the corresponding part of
* native.c:native_pending_task().
*/
#if 0
history->rsc->pending_task = strdup("probe");
history->rsc->pending_node = history->node;
#endif
} else {
history->rsc->pending_task = strdup(history->task);
history->rsc->pending_node = history->node;
}
}
static void
unpack_rsc_op(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
xmlNode **last_failure, enum action_fail_response *on_fail)
{
int old_rc = 0;
bool expired = false;
pe_resource_t *parent = rsc;
enum action_fail_response failure_strategy = pcmk_on_fail_restart;
struct action_history history = {
.rsc = rsc,
.node = node,
.xml = xml_op,
.execution_status = PCMK_EXEC_UNKNOWN,
};
CRM_CHECK(rsc && node && xml_op, return);
history.id = ID(xml_op);
if (history.id == NULL) {
crm_err("Ignoring resource history entry for %s on %s without ID",
rsc->id, pe__node_name(node));
return;
}
// Task and interval
history.task = crm_element_value(xml_op, XML_LRM_ATTR_TASK);
if (history.task == NULL) {
crm_err("Ignoring resource history entry %s for %s on %s without "
XML_LRM_ATTR_TASK, history.id, rsc->id, pe__node_name(node));
return;
}
crm_element_value_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS,
&(history.interval_ms));
if (!can_affect_state(&history)) {
pe_rsc_trace(rsc,
"Ignoring resource history entry %s for %s on %s "
"with irrelevant action '%s'",
history.id, rsc->id, pe__node_name(node), history.task);
return;
}
if (unpack_action_result(&history) != pcmk_rc_ok) {
return; // Error already logged
}
history.expected_exit_status = pe__target_rc_from_xml(xml_op);
history.key = pe__xe_history_key(xml_op);
crm_element_value_int(xml_op, XML_LRM_ATTR_CALLID, &(history.call_id));
pe_rsc_trace(rsc, "Unpacking %s (%s call %d on %s): %s (%s)",
history.id, history.task, history.call_id, pe__node_name(node),
pcmk_exec_status_str(history.execution_status),
crm_exit_str(history.exit_status));
if (node->details->unclean) {
pe_rsc_trace(rsc,
"%s is running on %s, which is unclean (further action "
"depends on value of stop's on-fail attribute)",
rsc->id, pe__node_name(node));
}
expired = check_operation_expiry(&history);
old_rc = history.exit_status;
remap_operation(&history, on_fail, expired);
if (expired && (process_expired_result(&history, old_rc) == pcmk_rc_ok)) {
goto done;
}
if (!pe_rsc_is_bundled(rsc) && pcmk_xe_mask_probe_failure(xml_op)) {
mask_probe_failure(&history, old_rc, *last_failure, on_fail);
goto done;
}
if (!pcmk_is_set(rsc->flags, pe_rsc_unique)) {
parent = uber_parent(rsc);
}
switch (history.execution_status) {
case PCMK_EXEC_PENDING:
process_pending_action(&history, *last_failure);
goto done;
case PCMK_EXEC_DONE:
update_resource_state(&history, history.exit_status, *last_failure,
on_fail);
goto done;
case PCMK_EXEC_NOT_INSTALLED:
failure_strategy = get_action_on_fail(&history);
if (failure_strategy == pcmk_on_fail_ignore) {
crm_warn("Cannot ignore failed %s of %s on %s: "
"Resource agent doesn't exist "
CRM_XS " status=%d rc=%d id=%s",
history.task, rsc->id, pe__node_name(node),
history.execution_status, history.exit_status,
history.id);
/* Also for printing it as "FAILED" by marking it as pe_rsc_failed later */
*on_fail = pcmk_on_fail_ban;
}
resource_location(parent, node, -INFINITY, "hard-error",
rsc->cluster);
unpack_rsc_op_failure(&history, last_failure, on_fail);
goto done;
case PCMK_EXEC_NOT_CONNECTED:
if (pe__is_guest_or_remote_node(node)
&& pcmk_is_set(node->details->remote_rsc->flags, pe_rsc_managed)) {
/* We should never get into a situation where a managed remote
* connection resource is considered OK but a resource action
* behind the connection gets a "not connected" status. But as a
* fail-safe in case a bug or unusual circumstances do lead to
* that, ensure the remote connection is considered failed.
*/
pe__set_resource_flags(node->details->remote_rsc,
pe_rsc_failed|pe_rsc_stop);
}
break; // Not done, do error handling
case PCMK_EXEC_ERROR:
case PCMK_EXEC_ERROR_HARD:
case PCMK_EXEC_ERROR_FATAL:
case PCMK_EXEC_TIMEOUT:
case PCMK_EXEC_NOT_SUPPORTED:
case PCMK_EXEC_INVALID:
break; // Not done, do error handling
default: // No other value should be possible at this point
break;
}
failure_strategy = get_action_on_fail(&history);
if ((failure_strategy == pcmk_on_fail_ignore)
|| ((failure_strategy == pcmk_on_fail_restart_container)
&& (strcmp(history.task, PCMK_ACTION_STOP) == 0))) {
char *last_change_s = last_change_str(xml_op);
crm_warn("Pretending failed %s (%s%s%s) of %s on %s at %s succeeded "
CRM_XS " %s",
history.task, services_ocf_exitcode_str(history.exit_status),
(pcmk__str_empty(history.exit_reason)? "" : ": "),
pcmk__s(history.exit_reason, ""), rsc->id, pe__node_name(node),
last_change_s, history.id);
free(last_change_s);
update_resource_state(&history, history.expected_exit_status,
*last_failure, on_fail);
crm_xml_add(xml_op, XML_ATTR_UNAME, node->details->uname);
pe__set_resource_flags(rsc, pe_rsc_failure_ignored);
record_failed_op(&history);
if ((failure_strategy == pcmk_on_fail_restart_container)
&& cmp_on_fail(*on_fail, pcmk_on_fail_restart) <= 0) {
*on_fail = failure_strategy;
}
} else {
unpack_rsc_op_failure(&history, last_failure, on_fail);
if (history.execution_status == PCMK_EXEC_ERROR_HARD) {
uint8_t log_level = LOG_ERR;
if (history.exit_status == PCMK_OCF_NOT_INSTALLED) {
log_level = LOG_NOTICE;
}
do_crm_log(log_level,
"Preventing %s from restarting on %s because "
"of hard failure (%s%s%s) " CRM_XS " %s",
parent->id, pe__node_name(node),
services_ocf_exitcode_str(history.exit_status),
(pcmk__str_empty(history.exit_reason)? "" : ": "),
pcmk__s(history.exit_reason, ""), history.id);
resource_location(parent, node, -INFINITY, "hard-error",
rsc->cluster);
} else if (history.execution_status == PCMK_EXEC_ERROR_FATAL) {
crm_err("Preventing %s from restarting anywhere because "
"of fatal failure (%s%s%s) " CRM_XS " %s",
parent->id, services_ocf_exitcode_str(history.exit_status),
(pcmk__str_empty(history.exit_reason)? "" : ": "),
pcmk__s(history.exit_reason, ""), history.id);
resource_location(parent, NULL, -INFINITY, "fatal-error",
rsc->cluster);
}
}
done:
pe_rsc_trace(rsc, "%s role on %s after %s is %s (next %s)",
rsc->id, pe__node_name(node), history.id,
role2text(rsc->role), role2text(rsc->next_role));
}
static void
add_node_attrs(const xmlNode *xml_obj, pe_node_t *node, bool overwrite,
pe_working_set_t *data_set)
{
const char *cluster_name = NULL;
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = pcmk_role_unknown,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_UNAME), strdup(node->details->uname));
g_hash_table_insert(node->details->attrs, strdup(CRM_ATTR_ID),
strdup(node->details->id));
if (pcmk__str_eq(node->details->id, data_set->dc_uuid, pcmk__str_casei)) {
data_set->dc_node = node;
node->details->is_dc = TRUE;
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_IS_DC), strdup(XML_BOOLEAN_TRUE));
} else {
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_IS_DC), strdup(XML_BOOLEAN_FALSE));
}
cluster_name = g_hash_table_lookup(data_set->config_hash, "cluster-name");
if (cluster_name) {
g_hash_table_insert(node->details->attrs, strdup(CRM_ATTR_CLUSTER_NAME),
strdup(cluster_name));
}
pe__unpack_dataset_nvpairs(xml_obj, XML_TAG_ATTR_SETS, &rule_data,
node->details->attrs, NULL, overwrite, data_set);
pe__unpack_dataset_nvpairs(xml_obj, XML_TAG_UTILIZATION, &rule_data,
node->details->utilization, NULL,
FALSE, data_set);
if (pe_node_attribute_raw(node, CRM_ATTR_SITE_NAME) == NULL) {
const char *site_name = pe_node_attribute_raw(node, "site-name");
if (site_name) {
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_SITE_NAME),
strdup(site_name));
} else if (cluster_name) {
/* Default to cluster-name if unset */
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_SITE_NAME),
strdup(cluster_name));
}
}
}
static GList *
extract_operations(const char *node, const char *rsc, xmlNode * rsc_entry, gboolean active_filter)
{
int counter = -1;
int stop_index = -1;
int start_index = -1;
xmlNode *rsc_op = NULL;
GList *gIter = NULL;
GList *op_list = NULL;
GList *sorted_op_list = NULL;
/* extract operations */
op_list = NULL;
sorted_op_list = NULL;
for (rsc_op = pcmk__xe_first_child(rsc_entry);
rsc_op != NULL; rsc_op = pcmk__xe_next(rsc_op)) {
if (pcmk__str_eq((const char *)rsc_op->name, XML_LRM_TAG_RSC_OP,
pcmk__str_none)) {
crm_xml_add(rsc_op, "resource", rsc);
crm_xml_add(rsc_op, XML_ATTR_UNAME, node);
op_list = g_list_prepend(op_list, rsc_op);
}
}
if (op_list == NULL) {
/* if there are no operations, there is nothing to do */
return NULL;
}
sorted_op_list = g_list_sort(op_list, sort_op_by_callid);
/* create active recurring operations as optional */
if (active_filter == FALSE) {
return sorted_op_list;
}
op_list = NULL;
calculate_active_ops(sorted_op_list, &start_index, &stop_index);
for (gIter = sorted_op_list; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
counter++;
if (start_index < stop_index) {
crm_trace("Skipping %s: not active", ID(rsc_entry));
break;
} else if (counter < start_index) {
crm_trace("Skipping %s: old", ID(rsc_op));
continue;
}
op_list = g_list_append(op_list, rsc_op);
}
g_list_free(sorted_op_list);
return op_list;
}
GList *
find_operations(const char *rsc, const char *node, gboolean active_filter,
pe_working_set_t * data_set)
{
GList *output = NULL;
GList *intermediate = NULL;
xmlNode *tmp = NULL;
xmlNode *status = find_xml_node(data_set->input, XML_CIB_TAG_STATUS, TRUE);
pe_node_t *this_node = NULL;
xmlNode *node_state = NULL;
for (node_state = pcmk__xe_first_child(status); node_state != NULL;
node_state = pcmk__xe_next(node_state)) {
if (pcmk__str_eq((const char *)node_state->name, XML_CIB_TAG_STATE, pcmk__str_none)) {
const char *uname = crm_element_value(node_state, XML_ATTR_UNAME);
if (node != NULL && !pcmk__str_eq(uname, node, pcmk__str_casei)) {
continue;
}
this_node = pe_find_node(data_set->nodes, uname);
if(this_node == NULL) {
CRM_LOG_ASSERT(this_node != NULL);
continue;
} else if (pe__is_guest_or_remote_node(this_node)) {
determine_remote_online_status(data_set, this_node);
} else {
determine_online_status(node_state, this_node, data_set);
}
if (this_node->details->online
|| pcmk_is_set(data_set->flags, pcmk_sched_fencing_enabled)) {
/* offline nodes run no resources...
* unless stonith is enabled in which case we need to
* make sure rsc start events happen after the stonith
*/
xmlNode *lrm_rsc = NULL;
tmp = find_xml_node(node_state, XML_CIB_TAG_LRM, FALSE);
tmp = find_xml_node(tmp, XML_LRM_TAG_RESOURCES, FALSE);
for (lrm_rsc = pcmk__xe_first_child(tmp); lrm_rsc != NULL;
lrm_rsc = pcmk__xe_next(lrm_rsc)) {
if (pcmk__str_eq((const char *)lrm_rsc->name,
XML_LRM_TAG_RESOURCE, pcmk__str_none)) {
const char *rsc_id = crm_element_value(lrm_rsc, XML_ATTR_ID);
if (rsc != NULL && !pcmk__str_eq(rsc_id, rsc, pcmk__str_casei)) {
continue;
}
intermediate = extract_operations(uname, rsc_id, lrm_rsc, active_filter);
output = g_list_concat(output, intermediate);
}
}
}
}
}
return output;
}