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diff --git a/daemons/controld/controld_execd.c b/daemons/controld/controld_execd.c
index a24bf1a217..f6b623ee83 100644
--- a/daemons/controld/controld_execd.c
+++ b/daemons/controld/controld_execd.c
@@ -1,2446 +1,2446 @@
/*
* Copyright 2004-2024 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 <regex.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <crm/crm.h>
#include <crm/lrmd.h> // lrmd_event_data_t, lrmd_rsc_info_t, etc.
#include <crm/services.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/pengine/rules.h>
#include <crm/lrmd_internal.h>
#include <pacemaker-internal.h>
#include <pacemaker-controld.h>
#define START_DELAY_THRESHOLD 5 * 60 * 1000
#define MAX_LRM_REG_FAILS 30
struct delete_event_s {
int rc;
const char *rsc;
lrm_state_t *lrm_state;
};
static gboolean is_rsc_active(lrm_state_t * lrm_state, const char *rsc_id);
static gboolean build_active_RAs(lrm_state_t * lrm_state, xmlNode * rsc_list);
static gboolean stop_recurring_actions(gpointer key, gpointer value, gpointer user_data);
static lrmd_event_data_t *construct_op(const lrm_state_t *lrm_state,
const xmlNode *rsc_op,
const char *rsc_id,
const char *operation);
static void do_lrm_rsc_op(lrm_state_t *lrm_state, lrmd_rsc_info_t *rsc,
xmlNode *msg, struct ra_metadata_s *md);
static gboolean lrm_state_verify_stopped(lrm_state_t * lrm_state, enum crmd_fsa_state cur_state,
int log_level);
static void
lrm_connection_destroy(void)
{
if (pcmk_is_set(controld_globals.fsa_input_register, R_LRM_CONNECTED)) {
crm_crit("Lost connection to local executor");
register_fsa_input(C_FSA_INTERNAL, I_ERROR, NULL);
controld_clear_fsa_input_flags(R_LRM_CONNECTED);
}
}
static char *
make_stop_id(const char *rsc, int call_id)
{
return crm_strdup_printf("%s:%d", rsc, call_id);
}
static void
copy_instance_keys(gpointer key, gpointer value, gpointer user_data)
{
if (strstr(key, CRM_META "_") == NULL) {
g_hash_table_replace(user_data, strdup((const char *)key), strdup((const char *)value));
}
}
static void
copy_meta_keys(gpointer key, gpointer value, gpointer user_data)
{
if (strstr(key, CRM_META "_") != NULL) {
g_hash_table_replace(user_data, strdup((const char *)key), strdup((const char *)value));
}
}
/*!
* \internal
* \brief Remove a recurring operation from a resource's history
*
* \param[in,out] history Resource history to modify
* \param[in] op Operation to remove
*
* \return TRUE if the operation was found and removed, FALSE otherwise
*/
static gboolean
history_remove_recurring_op(rsc_history_t *history, const lrmd_event_data_t *op)
{
GList *iter;
for (iter = history->recurring_op_list; iter != NULL; iter = iter->next) {
lrmd_event_data_t *existing = iter->data;
if ((op->interval_ms == existing->interval_ms)
&& pcmk__str_eq(op->rsc_id, existing->rsc_id, pcmk__str_none)
&& pcmk__str_eq(op->op_type, existing->op_type, pcmk__str_casei)) {
history->recurring_op_list = g_list_delete_link(history->recurring_op_list, iter);
lrmd_free_event(existing);
return TRUE;
}
}
return FALSE;
}
/*!
* \internal
* \brief Free all recurring operations in resource history
*
* \param[in,out] history Resource history to modify
*/
static void
history_free_recurring_ops(rsc_history_t *history)
{
GList *iter;
for (iter = history->recurring_op_list; iter != NULL; iter = iter->next) {
lrmd_free_event(iter->data);
}
g_list_free(history->recurring_op_list);
history->recurring_op_list = NULL;
}
/*!
* \internal
* \brief Free resource history
*
* \param[in,out] history Resource history to free
*/
void
history_free(gpointer data)
{
rsc_history_t *history = (rsc_history_t*)data;
if (history->stop_params) {
g_hash_table_destroy(history->stop_params);
}
/* Don't need to free history->rsc.id because it's set to history->id */
free(history->rsc.type);
free(history->rsc.standard);
free(history->rsc.provider);
lrmd_free_event(history->failed);
lrmd_free_event(history->last);
free(history->id);
history_free_recurring_ops(history);
free(history);
}
static void
update_history_cache(lrm_state_t * lrm_state, lrmd_rsc_info_t * rsc, lrmd_event_data_t * op)
{
int target_rc = 0;
rsc_history_t *entry = NULL;
if (op->rsc_deleted) {
crm_debug("Purged history for '%s' after %s", op->rsc_id, op->op_type);
controld_delete_resource_history(op->rsc_id, lrm_state->node_name,
NULL, crmd_cib_smart_opt());
return;
}
if (pcmk__str_eq(op->op_type, PCMK_ACTION_NOTIFY, pcmk__str_casei)) {
return;
}
crm_debug("Updating history for '%s' with %s op", op->rsc_id, op->op_type);
entry = g_hash_table_lookup(lrm_state->resource_history, op->rsc_id);
if (entry == NULL && rsc) {
entry = calloc(1, sizeof(rsc_history_t));
entry->id = strdup(op->rsc_id);
g_hash_table_insert(lrm_state->resource_history, entry->id, entry);
entry->rsc.id = entry->id;
entry->rsc.type = strdup(rsc->type);
entry->rsc.standard = strdup(rsc->standard);
pcmk__str_update(&entry->rsc.provider, rsc->provider);
} else if (entry == NULL) {
crm_info("Resource %s no longer exists, not updating cache", op->rsc_id);
return;
}
entry->last_callid = op->call_id;
target_rc = rsc_op_expected_rc(op);
if (op->op_status == PCMK_EXEC_CANCELLED) {
if (op->interval_ms > 0) {
crm_trace("Removing cancelled recurring op: " PCMK__OP_FMT,
op->rsc_id, op->op_type, op->interval_ms);
history_remove_recurring_op(entry, op);
return;
} else {
crm_trace("Skipping " PCMK__OP_FMT " rc=%d, status=%d",
op->rsc_id, op->op_type, op->interval_ms, op->rc,
op->op_status);
}
} else if (did_rsc_op_fail(op, target_rc)) {
/* Store failed monitors here, otherwise the block below will cause them
* to be forgotten when a stop happens.
*/
if (entry->failed) {
lrmd_free_event(entry->failed);
}
entry->failed = lrmd_copy_event(op);
} else if (op->interval_ms == 0) {
if (entry->last) {
lrmd_free_event(entry->last);
}
entry->last = lrmd_copy_event(op);
if (op->params && pcmk__strcase_any_of(op->op_type, PCMK_ACTION_START,
PCMK_ACTION_RELOAD,
PCMK_ACTION_RELOAD_AGENT,
PCMK_ACTION_MONITOR, NULL)) {
if (entry->stop_params) {
g_hash_table_destroy(entry->stop_params);
}
entry->stop_params = pcmk__strkey_table(free, free);
g_hash_table_foreach(op->params, copy_instance_keys, entry->stop_params);
}
}
if (op->interval_ms > 0) {
/* Ensure there are no duplicates */
history_remove_recurring_op(entry, op);
crm_trace("Adding recurring op: " PCMK__OP_FMT,
op->rsc_id, op->op_type, op->interval_ms);
entry->recurring_op_list = g_list_prepend(entry->recurring_op_list, lrmd_copy_event(op));
} else if ((entry->recurring_op_list != NULL)
&& !pcmk__str_eq(op->op_type, PCMK_ACTION_MONITOR,
pcmk__str_casei)) {
crm_trace("Dropping %d recurring ops because of: " PCMK__OP_FMT,
g_list_length(entry->recurring_op_list), op->rsc_id,
op->op_type, op->interval_ms);
history_free_recurring_ops(entry);
}
}
/*!
* \internal
* \brief Send a direct OK ack for a resource task
*
* \param[in] lrm_state LRM connection
* \param[in] input Input message being ack'ed
* \param[in] rsc_id ID of affected resource
* \param[in] rsc Affected resource (if available)
* \param[in] task Operation task being ack'ed
* \param[in] ack_host Name of host to send ack to
* \param[in] ack_sys IPC system name to ack
*/
static void
send_task_ok_ack(const lrm_state_t *lrm_state, const ha_msg_input_t *input,
const char *rsc_id, const lrmd_rsc_info_t *rsc,
const char *task, const char *ack_host, const char *ack_sys)
{
lrmd_event_data_t *op = construct_op(lrm_state, input->xml, rsc_id, task);
lrmd__set_result(op, PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
controld_ack_event_directly(ack_host, ack_sys, rsc, op, rsc_id);
lrmd_free_event(op);
}
static inline const char *
op_node_name(lrmd_event_data_t *op)
{
return pcmk__s(op->remote_nodename, controld_globals.our_nodename);
}
void
lrm_op_callback(lrmd_event_data_t * op)
{
CRM_CHECK(op != NULL, return);
switch (op->type) {
case lrmd_event_disconnect:
if (op->remote_nodename == NULL) {
/* If this is the local executor IPC connection, set the right
* bits in the controller when the connection goes down.
*/
lrm_connection_destroy();
}
break;
case lrmd_event_exec_complete:
{
lrm_state_t *lrm_state = lrm_state_find(op_node_name(op));
CRM_ASSERT(lrm_state != NULL);
process_lrm_event(lrm_state, op, NULL, NULL);
}
break;
default:
break;
}
}
static void
try_local_executor_connect(long long action, fsa_data_t *msg_data,
lrm_state_t *lrm_state)
{
int rc = pcmk_rc_ok;
crm_debug("Connecting to the local executor");
// If we can connect, great
rc = controld_connect_local_executor(lrm_state);
if (rc == pcmk_rc_ok) {
controld_set_fsa_input_flags(R_LRM_CONNECTED);
crm_info("Connection to the local executor established");
return;
}
// Otherwise, if we can try again, set a timer to do so
if (lrm_state->num_lrm_register_fails < MAX_LRM_REG_FAILS) {
crm_warn("Failed to connect to the local executor %d time%s "
"(%d max): %s", lrm_state->num_lrm_register_fails,
pcmk__plural_s(lrm_state->num_lrm_register_fails),
MAX_LRM_REG_FAILS, pcmk_rc_str(rc));
controld_start_wait_timer();
crmd_fsa_stall(FALSE);
return;
}
// Otherwise give up
crm_err("Failed to connect to the executor the max allowed "
"%d time%s: %s", lrm_state->num_lrm_register_fails,
pcmk__plural_s(lrm_state->num_lrm_register_fails),
pcmk_rc_str(rc));
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
/* A_LRM_CONNECT */
void
do_lrm_control(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
/* This only pertains to local executor connections. Remote connections are
* handled as resources within the scheduler. Connecting and disconnecting
* from remote executor instances is handled differently.
*/
lrm_state_t *lrm_state = NULL;
if (controld_globals.our_nodename == NULL) {
return; /* Nothing to do */
}
lrm_state = lrm_state_find_or_create(controld_globals.our_nodename);
if (lrm_state == NULL) {
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
return;
}
if (action & A_LRM_DISCONNECT) {
if (lrm_state_verify_stopped(lrm_state, cur_state, LOG_INFO) == FALSE) {
if (action == A_LRM_DISCONNECT) {
crmd_fsa_stall(FALSE);
return;
}
}
controld_clear_fsa_input_flags(R_LRM_CONNECTED);
lrm_state_disconnect(lrm_state);
lrm_state_reset_tables(lrm_state, FALSE);
}
if (action & A_LRM_CONNECT) {
try_local_executor_connect(action, msg_data, lrm_state);
}
if (action & ~(A_LRM_CONNECT | A_LRM_DISCONNECT)) {
crm_err("Unexpected action %s in %s", fsa_action2string(action),
__func__);
}
}
static gboolean
lrm_state_verify_stopped(lrm_state_t * lrm_state, enum crmd_fsa_state cur_state, int log_level)
{
int counter = 0;
gboolean rc = TRUE;
const char *when = "lrm disconnect";
GHashTableIter gIter;
const char *key = NULL;
rsc_history_t *entry = NULL;
active_op_t *pending = NULL;
crm_debug("Checking for active resources before exit");
if (cur_state == S_TERMINATE) {
log_level = LOG_ERR;
when = "shutdown";
} else if (pcmk_is_set(controld_globals.fsa_input_register, R_SHUTDOWN)) {
when = "shutdown... waiting";
}
if ((lrm_state->active_ops != NULL) && lrm_state_is_connected(lrm_state)) {
guint removed = g_hash_table_foreach_remove(lrm_state->active_ops,
stop_recurring_actions,
lrm_state);
guint nremaining = g_hash_table_size(lrm_state->active_ops);
if (removed || nremaining) {
crm_notice("Stopped %u recurring operation%s at %s (%u remaining)",
removed, pcmk__plural_s(removed), when, nremaining);
}
}
if (lrm_state->active_ops != NULL) {
g_hash_table_iter_init(&gIter, lrm_state->active_ops);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&pending)) {
/* Ignore recurring actions in the shutdown calculations */
if (pending->interval_ms == 0) {
counter++;
}
}
}
if (counter > 0) {
do_crm_log(log_level, "%d pending executor operation%s at %s",
counter, pcmk__plural_s(counter), when);
if ((cur_state == S_TERMINATE)
|| !pcmk_is_set(controld_globals.fsa_input_register,
R_SENT_RSC_STOP)) {
g_hash_table_iter_init(&gIter, lrm_state->active_ops);
while (g_hash_table_iter_next(&gIter, (gpointer*)&key, (gpointer*)&pending)) {
do_crm_log(log_level, "Pending action: %s (%s)", key, pending->op_key);
}
} else {
rc = FALSE;
}
return rc;
}
if (lrm_state->resource_history == NULL) {
return rc;
}
if (pcmk_is_set(controld_globals.fsa_input_register, R_SHUTDOWN)) {
/* At this point we're not waiting, we're just shutting down */
when = "shutdown";
}
counter = 0;
g_hash_table_iter_init(&gIter, lrm_state->resource_history);
while (g_hash_table_iter_next(&gIter, NULL, (gpointer*)&entry)) {
if (is_rsc_active(lrm_state, entry->id) == FALSE) {
continue;
}
counter++;
if (log_level == LOG_ERR) {
crm_info("Found %s active at %s", entry->id, when);
} else {
crm_trace("Found %s active at %s", entry->id, when);
}
if (lrm_state->active_ops != NULL) {
GHashTableIter hIter;
g_hash_table_iter_init(&hIter, lrm_state->active_ops);
while (g_hash_table_iter_next(&hIter, (gpointer*)&key, (gpointer*)&pending)) {
if (pcmk__str_eq(entry->id, pending->rsc_id, pcmk__str_none)) {
crm_notice("%sction %s (%s) incomplete at %s",
pending->interval_ms == 0 ? "A" : "Recurring a",
key, pending->op_key, when);
}
}
}
}
if (counter) {
crm_err("%d resource%s active at %s",
counter, (counter == 1)? " was" : "s were", when);
}
return rc;
}
static gboolean
is_rsc_active(lrm_state_t * lrm_state, const char *rsc_id)
{
rsc_history_t *entry = NULL;
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
if (entry == NULL || entry->last == NULL) {
return FALSE;
}
crm_trace("Processing %s: %s.%d=%d", rsc_id, entry->last->op_type,
entry->last->interval_ms, entry->last->rc);
if ((entry->last->rc == PCMK_OCF_OK)
&& pcmk__str_eq(entry->last->op_type, PCMK_ACTION_STOP,
pcmk__str_casei)) {
return FALSE;
} else if (entry->last->rc == PCMK_OCF_OK
&& pcmk__str_eq(entry->last->op_type, PCMK_ACTION_MIGRATE_TO,
pcmk__str_casei)) {
// A stricter check is too complex ... leave that to the scheduler
return FALSE;
} else if (entry->last->rc == PCMK_OCF_NOT_RUNNING) {
return FALSE;
} else if ((entry->last->interval_ms == 0)
&& (entry->last->rc == PCMK_OCF_NOT_CONFIGURED)) {
/* Badly configured resources can't be reliably stopped */
return FALSE;
}
return TRUE;
}
static gboolean
build_active_RAs(lrm_state_t * lrm_state, xmlNode * rsc_list)
{
GHashTableIter iter;
rsc_history_t *entry = NULL;
g_hash_table_iter_init(&iter, lrm_state->resource_history);
while (g_hash_table_iter_next(&iter, NULL, (void **)&entry)) {
GList *gIter = NULL;
xmlNode *xml_rsc = create_xml_node(rsc_list, XML_LRM_TAG_RESOURCE);
crm_xml_add(xml_rsc, PCMK_XA_ID, entry->id);
crm_xml_add(xml_rsc, XML_ATTR_TYPE, entry->rsc.type);
crm_xml_add(xml_rsc, XML_AGENT_ATTR_CLASS, entry->rsc.standard);
crm_xml_add(xml_rsc, XML_AGENT_ATTR_PROVIDER, entry->rsc.provider);
if (entry->last && entry->last->params) {
static const char *name = CRM_META "_" PCMK__META_CONTAINER;
const char *container = g_hash_table_lookup(entry->last->params,
name);
if (container) {
crm_trace("Resource %s is a part of container resource %s", entry->id, container);
crm_xml_add(xml_rsc, PCMK__META_CONTAINER, container);
}
}
controld_add_resource_history_xml(xml_rsc, &(entry->rsc), entry->failed,
lrm_state->node_name);
controld_add_resource_history_xml(xml_rsc, &(entry->rsc), entry->last,
lrm_state->node_name);
for (gIter = entry->recurring_op_list; gIter != NULL; gIter = gIter->next) {
controld_add_resource_history_xml(xml_rsc, &(entry->rsc), gIter->data,
lrm_state->node_name);
}
}
return FALSE;
}
xmlNode *
controld_query_executor_state(void)
{
xmlNode *xml_state = NULL;
xmlNode *xml_data = NULL;
xmlNode *rsc_list = NULL;
crm_node_t *peer = NULL;
lrm_state_t *lrm_state = lrm_state_find(controld_globals.our_nodename);
if (!lrm_state) {
crm_err("Could not find executor state for node %s",
controld_globals.our_nodename);
return NULL;
}
peer = crm_get_peer_full(0, lrm_state->node_name, CRM_GET_PEER_ANY);
CRM_CHECK(peer != NULL, return NULL);
xml_state = create_node_state_update(peer,
node_update_cluster|node_update_peer,
NULL, __func__);
if (xml_state == NULL) {
return NULL;
}
xml_data = create_xml_node(xml_state, XML_CIB_TAG_LRM);
crm_xml_add(xml_data, PCMK_XA_ID, peer->uuid);
rsc_list = create_xml_node(xml_data, XML_LRM_TAG_RESOURCES);
/* Build a list of active (not always running) resources */
build_active_RAs(lrm_state, rsc_list);
crm_log_xml_trace(xml_state, "Current executor state");
return xml_state;
}
/*!
* \internal
* \brief Map standard Pacemaker return code to operation status and OCF code
*
* \param[out] event Executor event whose status and return code should be set
* \param[in] rc Standard Pacemaker return code
*/
void
controld_rc2event(lrmd_event_data_t *event, int rc)
{
/* This is called for cleanup requests from controller peers/clients, not
* for resource actions, so no exit reason is needed.
*/
switch (rc) {
case pcmk_rc_ok:
lrmd__set_result(event, PCMK_OCF_OK, PCMK_EXEC_DONE, NULL);
break;
case EACCES:
lrmd__set_result(event, PCMK_OCF_INSUFFICIENT_PRIV,
PCMK_EXEC_ERROR, NULL);
break;
default:
lrmd__set_result(event, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_ERROR,
NULL);
break;
}
}
/*!
* \internal
* \brief Trigger a new transition after CIB status was deleted
*
* If a CIB status delete was not expected (as part of the transition graph),
* trigger a new transition by updating the (arbitrary) "last-lrm-refresh"
* cluster property.
*
* \param[in] from_sys IPC name that requested the delete
* \param[in] rsc_id Resource whose status was deleted (for logging only)
*/
void
controld_trigger_delete_refresh(const char *from_sys, const char *rsc_id)
{
if (!pcmk__str_eq(from_sys, CRM_SYSTEM_TENGINE, pcmk__str_casei)) {
char *now_s = crm_strdup_printf("%lld", (long long) time(NULL));
crm_debug("Triggering a refresh after %s cleaned %s", from_sys, rsc_id);
cib__update_node_attr(controld_globals.logger_out,
controld_globals.cib_conn, cib_none,
XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL,
"last-lrm-refresh", now_s, NULL, NULL);
free(now_s);
}
}
static void
notify_deleted(lrm_state_t * lrm_state, ha_msg_input_t * input, const char *rsc_id, int rc)
{
lrmd_event_data_t *op = NULL;
const char *from_sys = crm_element_value(input->msg, F_CRM_SYS_FROM);
const char *from_host = crm_element_value(input->msg, F_CRM_HOST_FROM);
crm_info("Notifying %s on %s that %s was%s deleted",
from_sys, (from_host? from_host : "localhost"), rsc_id,
((rc == pcmk_ok)? "" : " not"));
op = construct_op(lrm_state, input->xml, rsc_id, PCMK_ACTION_DELETE);
controld_rc2event(op, pcmk_legacy2rc(rc));
controld_ack_event_directly(from_host, from_sys, NULL, op, rsc_id);
lrmd_free_event(op);
controld_trigger_delete_refresh(from_sys, rsc_id);
}
static gboolean
lrm_remove_deleted_rsc(gpointer key, gpointer value, gpointer user_data)
{
struct delete_event_s *event = user_data;
struct pending_deletion_op_s *op = value;
if (pcmk__str_eq(event->rsc, op->rsc, pcmk__str_none)) {
notify_deleted(event->lrm_state, op->input, event->rsc, event->rc);
return TRUE;
}
return FALSE;
}
static gboolean
lrm_remove_deleted_op(gpointer key, gpointer value, gpointer user_data)
{
const char *rsc = user_data;
active_op_t *pending = value;
if (pcmk__str_eq(rsc, pending->rsc_id, pcmk__str_none)) {
crm_info("Removing op %s:%d for deleted resource %s",
pending->op_key, pending->call_id, rsc);
return TRUE;
}
return FALSE;
}
static void
delete_rsc_entry(lrm_state_t *lrm_state, ha_msg_input_t *input,
const char *rsc_id, GHashTableIter *rsc_iter, int rc,
const char *user_name, bool from_cib)
{
struct delete_event_s event;
CRM_CHECK(rsc_id != NULL, return);
if (rc == pcmk_ok) {
char *rsc_id_copy = strdup(rsc_id);
if (rsc_iter) {
g_hash_table_iter_remove(rsc_iter);
} else {
g_hash_table_remove(lrm_state->resource_history, rsc_id_copy);
}
if (from_cib) {
controld_delete_resource_history(rsc_id_copy, lrm_state->node_name,
user_name, crmd_cib_smart_opt());
}
g_hash_table_foreach_remove(lrm_state->active_ops,
lrm_remove_deleted_op, rsc_id_copy);
free(rsc_id_copy);
}
if (input) {
notify_deleted(lrm_state, input, rsc_id, rc);
}
event.rc = rc;
event.rsc = rsc_id;
event.lrm_state = lrm_state;
g_hash_table_foreach_remove(lrm_state->deletion_ops, lrm_remove_deleted_rsc, &event);
}
static inline gboolean
last_failed_matches_op(rsc_history_t *entry, const char *op, guint interval_ms)
{
if (entry == NULL) {
return FALSE;
}
if (op == NULL) {
return TRUE;
}
return (pcmk__str_eq(op, entry->failed->op_type, pcmk__str_casei)
&& (interval_ms == entry->failed->interval_ms));
}
/*!
* \internal
* \brief Clear a resource's last failure
*
* Erase a resource's last failure on a particular node from both the
* LRM resource history in the CIB, and the resource history remembered
* for the LRM state.
*
* \param[in] rsc_id Resource name
* \param[in] node_name Node name
* \param[in] operation If specified, only clear if matching this operation
* \param[in] interval_ms If operation is specified, it has this interval
*/
void
lrm_clear_last_failure(const char *rsc_id, const char *node_name,
const char *operation, guint interval_ms)
{
lrm_state_t *lrm_state = lrm_state_find(node_name);
if (lrm_state == NULL) {
return;
}
if (lrm_state->resource_history != NULL) {
rsc_history_t *entry = g_hash_table_lookup(lrm_state->resource_history,
rsc_id);
if (last_failed_matches_op(entry, operation, interval_ms)) {
lrmd_free_event(entry->failed);
entry->failed = NULL;
}
}
}
/* Returns: gboolean - cancellation is in progress */
static gboolean
cancel_op(lrm_state_t * lrm_state, const char *rsc_id, const char *key, int op, gboolean remove)
{
int rc = pcmk_ok;
char *local_key = NULL;
active_op_t *pending = NULL;
CRM_CHECK(op != 0, return FALSE);
CRM_CHECK(rsc_id != NULL, return FALSE);
if (key == NULL) {
local_key = make_stop_id(rsc_id, op);
key = local_key;
}
pending = g_hash_table_lookup(lrm_state->active_ops, key);
if (pending) {
if (remove && !pcmk_is_set(pending->flags, active_op_remove)) {
controld_set_active_op_flags(pending, active_op_remove);
crm_debug("Scheduling %s for removal", key);
}
if (pcmk_is_set(pending->flags, active_op_cancelled)) {
crm_debug("Operation %s already cancelled", key);
free(local_key);
return FALSE;
}
controld_set_active_op_flags(pending, active_op_cancelled);
} else {
crm_info("No pending op found for %s", key);
free(local_key);
return FALSE;
}
crm_debug("Cancelling op %d for %s (%s)", op, rsc_id, key);
rc = lrm_state_cancel(lrm_state, pending->rsc_id, pending->op_type,
pending->interval_ms);
if (rc == pcmk_ok) {
crm_debug("Op %d for %s (%s): cancelled", op, rsc_id, key);
free(local_key);
return TRUE;
}
crm_debug("Op %d for %s (%s): Nothing to cancel", op, rsc_id, key);
/* The caller needs to make sure the entry is
* removed from the active operations list
*
* Usually by returning TRUE inside the worker function
* supplied to g_hash_table_foreach_remove()
*
* Not removing the entry from active operations will block
* the node from shutting down
*/
free(local_key);
return FALSE;
}
struct cancel_data {
gboolean done;
gboolean remove;
const char *key;
lrmd_rsc_info_t *rsc;
lrm_state_t *lrm_state;
};
static gboolean
cancel_action_by_key(gpointer key, gpointer value, gpointer user_data)
{
gboolean remove = FALSE;
struct cancel_data *data = user_data;
active_op_t *op = value;
if (pcmk__str_eq(op->op_key, data->key, pcmk__str_none)) {
data->done = TRUE;
remove = !cancel_op(data->lrm_state, data->rsc->id, key, op->call_id, data->remove);
}
return remove;
}
static gboolean
cancel_op_key(lrm_state_t * lrm_state, lrmd_rsc_info_t * rsc, const char *key, gboolean remove)
{
guint removed = 0;
struct cancel_data data;
CRM_CHECK(rsc != NULL, return FALSE);
CRM_CHECK(key != NULL, return FALSE);
data.key = key;
data.rsc = rsc;
data.done = FALSE;
data.remove = remove;
data.lrm_state = lrm_state;
removed = g_hash_table_foreach_remove(lrm_state->active_ops,
cancel_action_by_key, &data);
crm_trace("Removed %u op cache entries, new size: %u",
removed, g_hash_table_size(lrm_state->active_ops));
return data.done;
}
/*!
* \internal
* \brief Retrieve resource information from LRM
*
* \param[in,out] lrm_state Executor connection state to use
* \param[in] rsc_xml XML containing resource configuration
* \param[in] do_create If true, register resource if not already
* \param[out] rsc_info Where to store information obtained from executor
*
* \retval pcmk_ok Success (and rsc_info holds newly allocated result)
* \retval -EINVAL Required information is missing from arguments
* \retval -ENOTCONN No active connection to LRM
* \retval -ENODEV Resource not found
* \retval -errno Error communicating with executor when registering resource
*
* \note Caller is responsible for freeing result on success.
*/
static int
get_lrm_resource(lrm_state_t *lrm_state, const xmlNode *rsc_xml,
gboolean do_create, lrmd_rsc_info_t **rsc_info)
{
const char *id = ID(rsc_xml);
CRM_CHECK(lrm_state && rsc_xml && rsc_info, return -EINVAL);
CRM_CHECK(id, return -EINVAL);
if (lrm_state_is_connected(lrm_state) == FALSE) {
return -ENOTCONN;
}
crm_trace("Retrieving resource information for %s from the executor", id);
*rsc_info = lrm_state_get_rsc_info(lrm_state, id, 0);
// If resource isn't known by ID, try clone name, if provided
if (!*rsc_info) {
- const char *long_id = crm_element_value(rsc_xml, XML_ATTR_ID_LONG);
+ const char *long_id = crm_element_value(rsc_xml, PCMK__XA_LONG_ID);
if (long_id) {
*rsc_info = lrm_state_get_rsc_info(lrm_state, long_id, 0);
}
}
if ((*rsc_info == NULL) && do_create) {
const char *class = crm_element_value(rsc_xml, XML_AGENT_ATTR_CLASS);
const char *provider = crm_element_value(rsc_xml, XML_AGENT_ATTR_PROVIDER);
const char *type = crm_element_value(rsc_xml, XML_ATTR_TYPE);
int rc;
crm_trace("Registering resource %s with the executor", id);
rc = lrm_state_register_rsc(lrm_state, id, class, provider, type,
lrmd_opt_drop_recurring);
if (rc != pcmk_ok) {
fsa_data_t *msg_data = NULL;
crm_err("Could not register resource %s with the executor on %s: %s "
CRM_XS " rc=%d",
id, lrm_state->node_name, pcmk_strerror(rc), rc);
/* Register this as an internal error if this involves the local
* executor. Otherwise, we're likely dealing with an unresponsive
* remote node, which is not an FSA failure.
*/
if (lrm_state_is_local(lrm_state) == TRUE) {
register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);
}
return rc;
}
*rsc_info = lrm_state_get_rsc_info(lrm_state, id, 0);
}
return *rsc_info? pcmk_ok : -ENODEV;
}
static void
delete_resource(lrm_state_t *lrm_state, const char *id, lrmd_rsc_info_t *rsc,
GHashTableIter *iter, const char *sys, const char *user,
ha_msg_input_t *request, bool unregister, bool from_cib)
{
int rc = pcmk_ok;
crm_info("Removing resource %s from executor for %s%s%s",
id, sys, (user? " as " : ""), (user? user : ""));
if (rsc && unregister) {
rc = lrm_state_unregister_rsc(lrm_state, id, 0);
}
if (rc == pcmk_ok) {
crm_trace("Resource %s deleted from executor", id);
} else if (rc == -EINPROGRESS) {
crm_info("Deletion of resource '%s' from executor is pending", id);
if (request) {
struct pending_deletion_op_s *op = NULL;
char *ref = crm_element_value_copy(request->msg, XML_ATTR_REFERENCE);
op = calloc(1, sizeof(struct pending_deletion_op_s));
op->rsc = strdup(rsc->id);
op->input = copy_ha_msg_input(request);
g_hash_table_insert(lrm_state->deletion_ops, ref, op);
}
return;
} else {
crm_warn("Could not delete '%s' from executor for %s%s%s: %s "
CRM_XS " rc=%d", id, sys, (user? " as " : ""),
(user? user : ""), pcmk_strerror(rc), rc);
}
delete_rsc_entry(lrm_state, request, id, iter, rc, user, from_cib);
}
static int
get_fake_call_id(lrm_state_t *lrm_state, const char *rsc_id)
{
int call_id = 999999999;
rsc_history_t *entry = NULL;
if(lrm_state) {
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
}
/* Make sure the call id is greater than the last successful operation,
* otherwise the failure will not result in a possible recovery of the resource
* as it could appear the failure occurred before the successful start */
if (entry) {
call_id = entry->last_callid + 1;
}
if (call_id < 0) {
call_id = 1;
}
return call_id;
}
static void
fake_op_status(lrm_state_t *lrm_state, lrmd_event_data_t *op, int op_status,
enum ocf_exitcode op_exitcode, const char *exit_reason)
{
op->call_id = get_fake_call_id(lrm_state, op->rsc_id);
op->t_run = time(NULL);
op->t_rcchange = op->t_run;
lrmd__set_result(op, op_exitcode, op_status, exit_reason);
}
static void
force_reprobe(lrm_state_t *lrm_state, const char *from_sys,
const char *from_host, const char *user_name,
gboolean is_remote_node, bool reprobe_all_nodes)
{
GHashTableIter gIter;
rsc_history_t *entry = NULL;
crm_info("Clearing resource history on node %s", lrm_state->node_name);
g_hash_table_iter_init(&gIter, lrm_state->resource_history);
while (g_hash_table_iter_next(&gIter, NULL, (void **)&entry)) {
/* only unregister the resource during a reprobe if it is not a remote connection
* resource. otherwise unregistering the connection will terminate remote-node
* membership */
bool unregister = true;
if (is_remote_lrmd_ra(NULL, NULL, entry->id)) {
unregister = false;
if (reprobe_all_nodes) {
lrm_state_t *remote_lrm_state = lrm_state_find(entry->id);
if (remote_lrm_state != NULL) {
/* If reprobing all nodes, be sure to reprobe the remote
* node before clearing its connection resource
*/
force_reprobe(remote_lrm_state, from_sys, from_host,
user_name, TRUE, reprobe_all_nodes);
}
}
}
/* Don't delete from the CIB, since we'll delete the whole node's LRM
* state from the CIB soon
*/
delete_resource(lrm_state, entry->id, &entry->rsc, &gIter, from_sys,
user_name, NULL, unregister, false);
}
/* Now delete the copy in the CIB */
controld_delete_node_state(lrm_state->node_name, controld_section_lrm,
cib_scope_local);
// @COMPAT DCs < 1.1.14 need this deleted (in case it was explicitly false)
update_attrd(lrm_state->node_name, CRM_OP_PROBED, NULL, user_name, is_remote_node);
}
/*!
* \internal
* \brief Fail a requested action without actually executing it
*
* For an action that can't be executed, process it similarly to an actual
* execution result, with specified error status (except for notify actions,
* which will always be treated as successful).
*
* \param[in,out] lrm_state Executor connection that action is for
* \param[in] action Action XML from request
* \param[in] rc Desired return code to use
* \param[in] op_status Desired operation status to use
* \param[in] exit_reason Human-friendly detail, if error
*/
static void
synthesize_lrmd_failure(lrm_state_t *lrm_state, const xmlNode *action,
int op_status, enum ocf_exitcode rc,
const char *exit_reason)
{
lrmd_event_data_t *op = NULL;
const char *operation = crm_element_value(action, XML_LRM_ATTR_TASK);
const char *target_node = crm_element_value(action, XML_LRM_ATTR_TARGET);
xmlNode *xml_rsc = find_xml_node(action, XML_CIB_TAG_RESOURCE, TRUE);
if ((xml_rsc == NULL) || (ID(xml_rsc) == NULL)) {
/* @TODO Should we do something else, like direct ack? */
crm_info("Can't fake %s failure (%d) on %s without resource configuration",
crm_element_value(action, XML_LRM_ATTR_TASK_KEY), rc,
target_node);
return;
} else if(operation == NULL) {
/* This probably came from crm_resource -C, nothing to do */
crm_info("Can't fake %s failure (%d) on %s without operation",
ID(xml_rsc), rc, target_node);
return;
}
op = construct_op(lrm_state, action, ID(xml_rsc), operation);
if (pcmk__str_eq(operation, PCMK_ACTION_NOTIFY, pcmk__str_casei)) {
// Notifications can't fail
fake_op_status(lrm_state, op, PCMK_EXEC_DONE, PCMK_OCF_OK, NULL);
} else {
fake_op_status(lrm_state, op, op_status, rc, exit_reason);
}
crm_info("Faking " PCMK__OP_FMT " result (%d) on %s",
op->rsc_id, op->op_type, op->interval_ms, op->rc, target_node);
// Process the result as if it came from the LRM
process_lrm_event(lrm_state, op, NULL, action);
lrmd_free_event(op);
}
/*!
* \internal
* \brief Get target of an LRM operation (replacing \p NULL with local node
* name)
*
* \param[in] xml LRM operation data XML
*
* \return LRM operation target node name (local node or Pacemaker Remote node)
*/
static const char *
lrm_op_target(const xmlNode *xml)
{
const char *target = NULL;
if (xml) {
target = crm_element_value(xml, XML_LRM_ATTR_TARGET);
}
if (target == NULL) {
target = controld_globals.our_nodename;
}
return target;
}
static void
fail_lrm_resource(xmlNode *xml, lrm_state_t *lrm_state, const char *user_name,
const char *from_host, const char *from_sys)
{
lrmd_event_data_t *op = NULL;
lrmd_rsc_info_t *rsc = NULL;
xmlNode *xml_rsc = find_xml_node(xml, XML_CIB_TAG_RESOURCE, TRUE);
CRM_CHECK(xml_rsc != NULL, return);
/* The executor simply executes operations and reports the results, without
* any concept of success or failure, so to fail a resource, we must fake
* what a failure looks like.
*
* To do this, we create a fake executor operation event for the resource,
* and pass that event to the executor client callback so it will be
* processed as if it came from the executor.
*/
op = construct_op(lrm_state, xml, ID(xml_rsc), "asyncmon");
free((char*) op->user_data);
op->user_data = NULL;
op->interval_ms = 0;
if (user_name && !pcmk__is_privileged(user_name)) {
crm_err("%s does not have permission to fail %s", user_name, ID(xml_rsc));
fake_op_status(lrm_state, op, PCMK_EXEC_ERROR,
PCMK_OCF_INSUFFICIENT_PRIV,
"Unprivileged user cannot fail resources");
controld_ack_event_directly(from_host, from_sys, NULL, op, ID(xml_rsc));
lrmd_free_event(op);
return;
}
if (get_lrm_resource(lrm_state, xml_rsc, TRUE, &rsc) == pcmk_ok) {
crm_info("Failing resource %s...", rsc->id);
fake_op_status(lrm_state, op, PCMK_EXEC_DONE, PCMK_OCF_UNKNOWN_ERROR,
"Simulated failure");
process_lrm_event(lrm_state, op, NULL, xml);
op->rc = PCMK_OCF_OK; // The request to fail the resource succeeded
lrmd_free_rsc_info(rsc);
} else {
crm_info("Cannot find/create resource in order to fail it...");
crm_log_xml_warn(xml, "bad input");
fake_op_status(lrm_state, op, PCMK_EXEC_ERROR, PCMK_OCF_UNKNOWN_ERROR,
"Cannot fail unknown resource");
}
controld_ack_event_directly(from_host, from_sys, NULL, op, ID(xml_rsc));
lrmd_free_event(op);
}
static void
handle_reprobe_op(lrm_state_t *lrm_state, const char *from_sys,
const char *from_host, const char *user_name,
gboolean is_remote_node, bool reprobe_all_nodes)
{
crm_notice("Forcing the status of all resources to be redetected");
force_reprobe(lrm_state, from_sys, from_host, user_name, is_remote_node,
reprobe_all_nodes);
if (!pcmk__strcase_any_of(from_sys, CRM_SYSTEM_PENGINE, CRM_SYSTEM_TENGINE, NULL)) {
xmlNode *reply = create_request(CRM_OP_INVOKE_LRM, NULL, from_host,
from_sys, CRM_SYSTEM_LRMD,
controld_globals.our_uuid);
crm_debug("ACK'ing re-probe from %s (%s)", from_sys, from_host);
if (relay_message(reply, TRUE) == FALSE) {
crm_log_xml_err(reply, "Unable to route reply");
}
free_xml(reply);
}
}
static bool do_lrm_cancel(ha_msg_input_t *input, lrm_state_t *lrm_state,
lrmd_rsc_info_t *rsc, const char *from_host, const char *from_sys)
{
char *op_key = NULL;
char *meta_key = NULL;
int call = 0;
const char *call_id = NULL;
const char *op_task = NULL;
guint interval_ms = 0;
gboolean in_progress = FALSE;
xmlNode *params = find_xml_node(input->xml, XML_TAG_ATTRS, TRUE);
CRM_CHECK(params != NULL, return FALSE);
meta_key = crm_meta_name(XML_LRM_ATTR_TASK);
op_task = crm_element_value(params, meta_key);
free(meta_key);
CRM_CHECK(op_task != NULL, return FALSE);
meta_key = crm_meta_name(XML_LRM_ATTR_INTERVAL_MS);
if (crm_element_value_ms(params, meta_key, &interval_ms) != pcmk_ok) {
free(meta_key);
return FALSE;
}
free(meta_key);
op_key = pcmk__op_key(rsc->id, op_task, interval_ms);
meta_key = crm_meta_name(XML_LRM_ATTR_CALLID);
call_id = crm_element_value(params, meta_key);
free(meta_key);
crm_debug("Scheduler requested op %s (call=%s) be cancelled",
op_key, (call_id? call_id : "NA"));
pcmk__scan_min_int(call_id, &call, 0);
if (call == 0) {
// Normal case when the scheduler cancels a recurring op
in_progress = cancel_op_key(lrm_state, rsc, op_key, TRUE);
} else {
// Normal case when the scheduler cancels an orphan op
in_progress = cancel_op(lrm_state, rsc->id, NULL, call, TRUE);
}
// Acknowledge cancellation operation if for a remote connection resource
if (!in_progress || is_remote_lrmd_ra(NULL, NULL, rsc->id)) {
char *op_id = make_stop_id(rsc->id, call);
if (is_remote_lrmd_ra(NULL, NULL, rsc->id) == FALSE) {
crm_info("Nothing known about operation %d for %s", call, op_key);
}
controld_delete_action_history_by_key(rsc->id, lrm_state->node_name,
op_key, call);
send_task_ok_ack(lrm_state, input, rsc->id, rsc, op_task,
from_host, from_sys);
/* needed at least for cancellation of a remote operation */
if (lrm_state->active_ops != NULL) {
g_hash_table_remove(lrm_state->active_ops, op_id);
}
free(op_id);
} else {
/* No ack is needed since abcdaa8, but peers with older versions
* in a rolling upgrade need one. We didn't bump the feature set
* at that commit, so we can only compare against the previous
* CRM version (3.0.8). If any peers have feature set 3.0.9 but
* not abcdaa8, they will time out waiting for the ack (no
* released versions of Pacemaker are affected).
*/
const char *peer_version = crm_element_value(params,
PCMK_XA_CRM_FEATURE_SET);
if (compare_version(peer_version, "3.0.8") <= 0) {
crm_info("Sending compatibility ack for %s cancellation to %s (CRM version %s)",
op_key, from_host, peer_version);
send_task_ok_ack(lrm_state, input, rsc->id, rsc, op_task,
from_host, from_sys);
}
}
free(op_key);
return TRUE;
}
static void
do_lrm_delete(ha_msg_input_t *input, lrm_state_t *lrm_state,
lrmd_rsc_info_t *rsc, const char *from_sys, const char *from_host,
bool crm_rsc_delete, const char *user_name)
{
bool unregister = true;
int cib_rc = controld_delete_resource_history(rsc->id, lrm_state->node_name,
user_name,
cib_dryrun|cib_sync_call);
if (cib_rc != pcmk_rc_ok) {
lrmd_event_data_t *op = NULL;
op = construct_op(lrm_state, input->xml, rsc->id, PCMK_ACTION_DELETE);
/* These are resource clean-ups, not actions, so no exit reason is
* needed.
*/
lrmd__set_result(op, pcmk_rc2ocf(cib_rc), PCMK_EXEC_ERROR, NULL);
controld_ack_event_directly(from_host, from_sys, NULL, op, rsc->id);
lrmd_free_event(op);
return;
}
if (crm_rsc_delete && is_remote_lrmd_ra(NULL, NULL, rsc->id)) {
unregister = false;
}
delete_resource(lrm_state, rsc->id, rsc, NULL, from_sys,
user_name, input, unregister, true);
}
// User data for asynchronous metadata execution
struct metadata_cb_data {
lrmd_rsc_info_t *rsc; // Copy of resource information
xmlNode *input_xml; // Copy of FSA input XML
};
static struct metadata_cb_data *
new_metadata_cb_data(lrmd_rsc_info_t *rsc, xmlNode *input_xml)
{
struct metadata_cb_data *data = NULL;
data = calloc(1, sizeof(struct metadata_cb_data));
CRM_ASSERT(data != NULL);
data->input_xml = copy_xml(input_xml);
data->rsc = lrmd_copy_rsc_info(rsc);
return data;
}
static void
free_metadata_cb_data(struct metadata_cb_data *data)
{
lrmd_free_rsc_info(data->rsc);
free_xml(data->input_xml);
free(data);
}
/*!
* \internal
* \brief Execute an action after metadata has been retrieved
*
* \param[in] pid Ignored
* \param[in] result Result of metadata action
* \param[in] user_data Metadata callback data
*/
static void
metadata_complete(int pid, const pcmk__action_result_t *result, void *user_data)
{
struct metadata_cb_data *data = (struct metadata_cb_data *) user_data;
struct ra_metadata_s *md = NULL;
lrm_state_t *lrm_state = lrm_state_find(lrm_op_target(data->input_xml));
if ((lrm_state != NULL) && pcmk__result_ok(result)) {
md = controld_cache_metadata(lrm_state->metadata_cache, data->rsc,
result->action_stdout);
}
if (!pcmk_is_set(controld_globals.fsa_input_register, R_HA_DISCONNECTED)) {
do_lrm_rsc_op(lrm_state, data->rsc, data->input_xml, md);
}
free_metadata_cb_data(data);
}
/* A_LRM_INVOKE */
void
do_lrm_invoke(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state,
enum crmd_fsa_input current_input, fsa_data_t * msg_data)
{
lrm_state_t *lrm_state = NULL;
const char *crm_op = NULL;
const char *from_sys = NULL;
const char *from_host = NULL;
const char *operation = NULL;
ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg);
const char *user_name = NULL;
const char *target_node = lrm_op_target(input->xml);
gboolean is_remote_node = FALSE;
bool crm_rsc_delete = FALSE;
// Message routed to the local node is targeting a specific, non-local node
is_remote_node = !pcmk__str_eq(target_node, controld_globals.our_nodename,
pcmk__str_casei);
lrm_state = lrm_state_find(target_node);
if ((lrm_state == NULL) && is_remote_node) {
crm_err("Failing action because local node has never had connection to remote node %s",
target_node);
synthesize_lrmd_failure(NULL, input->xml, PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR,
"Local node has no connection to remote");
return;
}
CRM_ASSERT(lrm_state != NULL);
user_name = pcmk__update_acl_user(input->msg, F_CRM_USER, NULL);
crm_op = crm_element_value(input->msg, F_CRM_TASK);
from_sys = crm_element_value(input->msg, F_CRM_SYS_FROM);
if (!pcmk__str_eq(from_sys, CRM_SYSTEM_TENGINE, pcmk__str_none)) {
from_host = crm_element_value(input->msg, F_CRM_HOST_FROM);
}
if (pcmk__str_eq(crm_op, PCMK_ACTION_LRM_DELETE, pcmk__str_none)) {
if (!pcmk__str_eq(from_sys, CRM_SYSTEM_TENGINE, pcmk__str_none)) {
crm_rsc_delete = TRUE; // from crm_resource
}
operation = PCMK_ACTION_DELETE;
} else if (input->xml != NULL) {
operation = crm_element_value(input->xml, XML_LRM_ATTR_TASK);
}
CRM_CHECK(!pcmk__str_empty(crm_op) || !pcmk__str_empty(operation), return);
crm_trace("'%s' execution request from %s as %s user",
pcmk__s(crm_op, operation),
pcmk__s(from_sys, "unknown subsystem"),
pcmk__s(user_name, "current"));
if (pcmk__str_eq(crm_op, CRM_OP_LRM_FAIL, pcmk__str_none)) {
fail_lrm_resource(input->xml, lrm_state, user_name, from_host,
from_sys);
} else if (pcmk__str_eq(crm_op, CRM_OP_LRM_REFRESH, pcmk__str_none)) {
/* @COMPAT This can only be sent by crm_resource --refresh on a
* Pacemaker Remote node running Pacemaker 1.1.9, which is extremely
* unlikely. It previously would cause the controller to re-write its
* resource history to the CIB. Just ignore it.
*/
crm_notice("Ignoring refresh request from Pacemaker Remote 1.1.9 node");
// @COMPAT DCs <1.1.14 in a rolling upgrade might schedule this op
} else if (pcmk__str_eq(operation, CRM_OP_PROBED, pcmk__str_none)) {
update_attrd(lrm_state->node_name, CRM_OP_PROBED, XML_BOOLEAN_TRUE,
user_name, is_remote_node);
} else if (pcmk__str_eq(crm_op, CRM_OP_REPROBE, pcmk__str_none)
|| pcmk__str_eq(operation, CRM_OP_REPROBE, pcmk__str_none)) {
const char *raw_target = NULL;
if (input->xml != NULL) {
// For CRM_OP_REPROBE, a NULL target means we're targeting all nodes
raw_target = crm_element_value(input->xml, XML_LRM_ATTR_TARGET);
}
handle_reprobe_op(lrm_state, from_sys, from_host, user_name,
is_remote_node, (raw_target == NULL));
} else if (operation != NULL) {
lrmd_rsc_info_t *rsc = NULL;
xmlNode *xml_rsc = find_xml_node(input->xml, XML_CIB_TAG_RESOURCE, TRUE);
gboolean create_rsc = !pcmk__str_eq(operation, PCMK_ACTION_DELETE,
pcmk__str_none);
int rc;
// We can't return anything meaningful without a resource ID
CRM_CHECK(xml_rsc && ID(xml_rsc), return);
rc = get_lrm_resource(lrm_state, xml_rsc, create_rsc, &rsc);
if (rc == -ENOTCONN) {
synthesize_lrmd_failure(lrm_state, input->xml,
PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR,
"Not connected to remote executor");
return;
} else if ((rc < 0) && !create_rsc) {
/* Delete of malformed or nonexistent resource
* (deleting something that does not exist is a success)
*/
crm_notice("Not registering resource '%s' for a %s event "
CRM_XS " get-rc=%d (%s) transition-key=%s",
ID(xml_rsc), operation,
rc, pcmk_strerror(rc), ID(input->xml));
delete_rsc_entry(lrm_state, input, ID(xml_rsc), NULL, pcmk_ok,
user_name, true);
return;
} else if (rc == -EINVAL) {
// Resource operation on malformed resource
crm_err("Invalid resource definition for %s", ID(xml_rsc));
crm_log_xml_warn(input->msg, "invalid resource");
synthesize_lrmd_failure(lrm_state, input->xml, PCMK_EXEC_ERROR,
PCMK_OCF_NOT_CONFIGURED, // fatal error
"Invalid resource definition");
return;
} else if (rc < 0) {
// Error communicating with the executor
crm_err("Could not register resource '%s' with executor: %s "
CRM_XS " rc=%d",
ID(xml_rsc), pcmk_strerror(rc), rc);
crm_log_xml_warn(input->msg, "failed registration");
synthesize_lrmd_failure(lrm_state, input->xml, PCMK_EXEC_ERROR,
PCMK_OCF_INVALID_PARAM, // hard error
"Could not register resource with executor");
return;
}
if (pcmk__str_eq(operation, PCMK_ACTION_CANCEL, pcmk__str_none)) {
if (!do_lrm_cancel(input, lrm_state, rsc, from_host, from_sys)) {
crm_log_xml_warn(input->xml, "Bad command");
}
} else if (pcmk__str_eq(operation, PCMK_ACTION_DELETE,
pcmk__str_none)) {
do_lrm_delete(input, lrm_state, rsc, from_sys, from_host,
crm_rsc_delete, user_name);
} else {
struct ra_metadata_s *md = NULL;
/* Getting metadata from cache is OK except for start actions --
* always refresh from the agent for those, in case the resource
* agent was updated.
*
* @TODO Only refresh metadata for starts if the agent actually
* changed (using something like inotify, or a hash or modification
* time of the agent executable).
*/
if (strcmp(operation, PCMK_ACTION_START) != 0) {
md = controld_get_rsc_metadata(lrm_state, rsc,
controld_metadata_from_cache);
}
if ((md == NULL) && crm_op_needs_metadata(rsc->standard,
operation)) {
/* Most likely, we'll need the agent metadata to record the
* pending operation and the operation result. Get it now rather
* than wait until then, so the metadata action doesn't eat into
* the real action's timeout.
*
* @TODO Metadata is retrieved via direct execution of the
* agent, which has a couple of related issues: the executor
* should execute agents, not the controller; and metadata for
* Pacemaker Remote nodes should be collected on those nodes,
* not locally.
*/
struct metadata_cb_data *data = NULL;
data = new_metadata_cb_data(rsc, input->xml);
crm_info("Retrieving metadata for %s (%s%s%s:%s) asynchronously",
rsc->id, rsc->standard,
((rsc->provider == NULL)? "" : ":"),
((rsc->provider == NULL)? "" : rsc->provider),
rsc->type);
(void) lrmd__metadata_async(rsc, metadata_complete,
(void *) data);
} else {
do_lrm_rsc_op(lrm_state, rsc, input->xml, md);
}
}
lrmd_free_rsc_info(rsc);
} else {
crm_err("Invalid execution request: unknown command '%s' (bug?)",
crm_op);
register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL);
}
}
static lrmd_event_data_t *
construct_op(const lrm_state_t *lrm_state, const xmlNode *rsc_op,
const char *rsc_id, const char *operation)
{
lrmd_event_data_t *op = NULL;
const char *op_delay = NULL;
const char *op_timeout = NULL;
GHashTable *params = NULL;
xmlNode *primitive = NULL;
const char *class = NULL;
const char *transition = NULL;
CRM_ASSERT(rsc_id && operation);
op = lrmd_new_event(rsc_id, operation, 0);
op->type = lrmd_event_exec_complete;
op->timeout = 0;
op->start_delay = 0;
lrmd__set_result(op, PCMK_OCF_UNKNOWN, PCMK_EXEC_PENDING, NULL);
if (rsc_op == NULL) {
CRM_LOG_ASSERT(pcmk__str_eq(operation, PCMK_ACTION_STOP,
pcmk__str_casei));
op->user_data = NULL;
/* the stop_all_resources() case
* by definition there is no DC (or they'd be shutting
* us down).
* So we should put our version here.
*/
op->params = pcmk__strkey_table(free, free);
g_hash_table_insert(op->params, strdup(PCMK_XA_CRM_FEATURE_SET),
strdup(CRM_FEATURE_SET));
crm_trace("Constructed %s op for %s", operation, rsc_id);
return op;
}
params = xml2list(rsc_op);
g_hash_table_remove(params, CRM_META "_op_target_rc");
op_delay = crm_meta_value(params, XML_OP_ATTR_START_DELAY);
pcmk__scan_min_int(op_delay, &op->start_delay, 0);
op_timeout = crm_meta_value(params, XML_ATTR_TIMEOUT);
pcmk__scan_min_int(op_timeout, &op->timeout, 0);
if (pcmk__guint_from_hash(params, CRM_META "_" XML_LRM_ATTR_INTERVAL_MS, 0,
&(op->interval_ms)) != pcmk_rc_ok) {
op->interval_ms = 0;
}
/* Use pcmk_monitor_timeout instead of meta timeout for stonith
recurring monitor, if set */
primitive = find_xml_node(rsc_op, XML_CIB_TAG_RESOURCE, FALSE);
class = crm_element_value(primitive, XML_AGENT_ATTR_CLASS);
if (pcmk_is_set(pcmk_get_ra_caps(class), pcmk_ra_cap_fence_params)
&& pcmk__str_eq(operation, PCMK_ACTION_MONITOR, pcmk__str_casei)
&& (op->interval_ms > 0)) {
op_timeout = g_hash_table_lookup(params, "pcmk_monitor_timeout");
if (op_timeout != NULL) {
op->timeout = crm_get_msec(op_timeout);
}
}
if (!pcmk__str_eq(operation, PCMK_ACTION_STOP, pcmk__str_casei)) {
op->params = params;
} else {
rsc_history_t *entry = NULL;
if (lrm_state) {
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
}
/* If we do not have stop parameters cached, use
* whatever we are given */
if (!entry || !entry->stop_params) {
op->params = params;
} else {
/* Copy the cached parameter list so that we stop the resource
* with the old attributes, not the new ones */
op->params = pcmk__strkey_table(free, free);
g_hash_table_foreach(params, copy_meta_keys, op->params);
g_hash_table_foreach(entry->stop_params, copy_instance_keys, op->params);
g_hash_table_destroy(params);
params = NULL;
}
}
/* sanity */
if (op->timeout <= 0) {
op->timeout = op->interval_ms;
}
if (op->start_delay < 0) {
op->start_delay = 0;
}
transition = crm_element_value(rsc_op, XML_ATTR_TRANSITION_KEY);
CRM_CHECK(transition != NULL, return op);
op->user_data = strdup(transition);
if (op->interval_ms != 0) {
if (pcmk__strcase_any_of(operation, PCMK_ACTION_START, PCMK_ACTION_STOP,
NULL)) {
crm_err("Start and Stop actions cannot have an interval: %u",
op->interval_ms);
op->interval_ms = 0;
}
}
crm_trace("Constructed %s op for %s: interval=%u",
operation, rsc_id, op->interval_ms);
return op;
}
/*!
* \internal
* \brief Send a (synthesized) event result
*
* Reply with a synthesized event result directly, as opposed to going through
* the executor.
*
* \param[in] to_host Host to send result to
* \param[in] to_sys IPC name to send result (NULL for transition engine)
* \param[in] rsc Type information about resource the result is for
* \param[in,out] op Event with result to send
* \param[in] rsc_id ID of resource the result is for
*/
void
controld_ack_event_directly(const char *to_host, const char *to_sys,
const lrmd_rsc_info_t *rsc, lrmd_event_data_t *op,
const char *rsc_id)
{
xmlNode *reply = NULL;
xmlNode *update, *iter;
crm_node_t *peer = NULL;
CRM_CHECK(op != NULL, return);
if (op->rsc_id == NULL) {
CRM_ASSERT(rsc_id != NULL);
op->rsc_id = strdup(rsc_id);
}
if (to_sys == NULL) {
to_sys = CRM_SYSTEM_TENGINE;
}
peer = crm_get_peer(0, controld_globals.our_nodename);
update = create_node_state_update(peer, node_update_none, NULL,
__func__);
iter = create_xml_node(update, XML_CIB_TAG_LRM);
crm_xml_add(iter, PCMK_XA_ID, controld_globals.our_uuid);
iter = create_xml_node(iter, XML_LRM_TAG_RESOURCES);
iter = create_xml_node(iter, XML_LRM_TAG_RESOURCE);
crm_xml_add(iter, PCMK_XA_ID, op->rsc_id);
controld_add_resource_history_xml(iter, rsc, op,
controld_globals.our_nodename);
reply = create_request(CRM_OP_INVOKE_LRM, update, to_host, to_sys, CRM_SYSTEM_LRMD, NULL);
crm_log_xml_trace(update, "[direct ACK]");
crm_debug("ACK'ing resource op " PCMK__OP_FMT " from %s: %s",
op->rsc_id, op->op_type, op->interval_ms, op->user_data,
crm_element_value(reply, XML_ATTR_REFERENCE));
if (relay_message(reply, TRUE) == FALSE) {
crm_log_xml_err(reply, "Unable to route reply");
}
free_xml(update);
free_xml(reply);
}
gboolean
verify_stopped(enum crmd_fsa_state cur_state, int log_level)
{
gboolean res = TRUE;
GList *lrm_state_list = lrm_state_get_list();
GList *state_entry;
for (state_entry = lrm_state_list; state_entry != NULL; state_entry = state_entry->next) {
lrm_state_t *lrm_state = state_entry->data;
if (!lrm_state_verify_stopped(lrm_state, cur_state, log_level)) {
/* keep iterating through all even when false is returned */
res = FALSE;
}
}
controld_set_fsa_input_flags(R_SENT_RSC_STOP);
g_list_free(lrm_state_list); lrm_state_list = NULL;
return res;
}
struct stop_recurring_action_s {
lrmd_rsc_info_t *rsc;
lrm_state_t *lrm_state;
};
static gboolean
stop_recurring_action_by_rsc(gpointer key, gpointer value, gpointer user_data)
{
gboolean remove = FALSE;
struct stop_recurring_action_s *event = user_data;
active_op_t *op = value;
if ((op->interval_ms != 0)
&& pcmk__str_eq(op->rsc_id, event->rsc->id, pcmk__str_none)) {
crm_debug("Cancelling op %d for %s (%s)", op->call_id, op->rsc_id, (char*)key);
remove = !cancel_op(event->lrm_state, event->rsc->id, key, op->call_id, FALSE);
}
return remove;
}
static gboolean
stop_recurring_actions(gpointer key, gpointer value, gpointer user_data)
{
gboolean remove = FALSE;
lrm_state_t *lrm_state = user_data;
active_op_t *op = value;
if (op->interval_ms != 0) {
crm_info("Cancelling op %d for %s (%s)", op->call_id, op->rsc_id,
(const char *) key);
remove = !cancel_op(lrm_state, op->rsc_id, key, op->call_id, FALSE);
}
return remove;
}
/*!
* \internal
* \brief Check whether recurring actions should be cancelled before an action
*
* \param[in] rsc_id Resource that action is for
* \param[in] action Action being performed
* \param[in] interval_ms Operation interval of \p action (in milliseconds)
*
* \return true if recurring actions should be cancelled, otherwise false
*/
static bool
should_cancel_recurring(const char *rsc_id, const char *action, guint interval_ms)
{
if (is_remote_lrmd_ra(NULL, NULL, rsc_id) && (interval_ms == 0)
&& (strcmp(action, PCMK_ACTION_MIGRATE_TO) == 0)) {
/* Don't stop monitoring a migrating Pacemaker Remote connection
* resource until the entire migration has completed. We must detect if
* the connection is unexpectedly severed, even during a migration.
*/
return false;
}
// Cancel recurring actions before changing resource state
return (interval_ms == 0)
&& !pcmk__str_any_of(action, PCMK_ACTION_MONITOR,
PCMK_ACTION_NOTIFY, NULL);
}
/*!
* \internal
* \brief Check whether an action should not be performed at this time
*
* \param[in] operation Action to be performed
*
* \return Readable description of why action should not be performed,
* or NULL if it should be performed
*/
static const char *
should_nack_action(const char *action)
{
if (pcmk_is_set(controld_globals.fsa_input_register, R_SHUTDOWN)
&& pcmk__str_eq(action, PCMK_ACTION_START, pcmk__str_none)) {
register_fsa_input(C_SHUTDOWN, I_SHUTDOWN, NULL);
return "Not attempting start due to shutdown in progress";
}
switch (controld_globals.fsa_state) {
case S_NOT_DC:
case S_POLICY_ENGINE: // Recalculating
case S_TRANSITION_ENGINE:
break;
default:
if (!pcmk__str_eq(action, PCMK_ACTION_STOP, pcmk__str_none)) {
return "Controller cannot attempt actions at this time";
}
break;
}
return NULL;
}
static void
do_lrm_rsc_op(lrm_state_t *lrm_state, lrmd_rsc_info_t *rsc, xmlNode *msg,
struct ra_metadata_s *md)
{
int rc;
int call_id = 0;
char *op_id = NULL;
lrmd_event_data_t *op = NULL;
fsa_data_t *msg_data = NULL;
const char *transition = NULL;
const char *operation = NULL;
const char *nack_reason = NULL;
CRM_CHECK((rsc != NULL) && (msg != NULL), return);
operation = crm_element_value(msg, XML_LRM_ATTR_TASK);
CRM_CHECK(!pcmk__str_empty(operation), return);
transition = crm_element_value(msg, XML_ATTR_TRANSITION_KEY);
if (pcmk__str_empty(transition)) {
crm_log_xml_err(msg, "Missing transition number");
}
if (lrm_state == NULL) {
// This shouldn't be possible, but provide a failsafe just in case
crm_err("Cannot execute %s of %s: No executor connection "
CRM_XS " transition_key=%s",
operation, rsc->id, pcmk__s(transition, ""));
synthesize_lrmd_failure(NULL, msg, PCMK_EXEC_INVALID,
PCMK_OCF_UNKNOWN_ERROR,
"No executor connection");
return;
}
if (pcmk__str_any_of(operation, PCMK_ACTION_RELOAD,
PCMK_ACTION_RELOAD_AGENT, NULL)) {
/* Pre-2.1.0 DCs will schedule reload actions only, and 2.1.0+ DCs
* will schedule reload-agent actions only. In either case, we need
* to map that to whatever the resource agent actually supports.
* Default to the OCF 1.1 name.
*/
if ((md != NULL)
&& pcmk_is_set(md->ra_flags, ra_supports_legacy_reload)) {
operation = PCMK_ACTION_RELOAD;
} else {
operation = PCMK_ACTION_RELOAD_AGENT;
}
}
op = construct_op(lrm_state, msg, rsc->id, operation);
CRM_CHECK(op != NULL, return);
if (should_cancel_recurring(rsc->id, operation, op->interval_ms)) {
guint removed = 0;
struct stop_recurring_action_s data;
data.rsc = rsc;
data.lrm_state = lrm_state;
removed = g_hash_table_foreach_remove(lrm_state->active_ops,
stop_recurring_action_by_rsc,
&data);
if (removed) {
crm_debug("Stopped %u recurring operation%s in preparation for "
PCMK__OP_FMT, removed, pcmk__plural_s(removed),
rsc->id, operation, op->interval_ms);
}
}
/* now do the op */
crm_notice("Requesting local execution of %s operation for %s on %s "
CRM_XS " transition_key=%s op_key=" PCMK__OP_FMT,
pcmk__readable_action(op->op_type, op->interval_ms), rsc->id,
lrm_state->node_name, pcmk__s(transition, ""), rsc->id,
operation, op->interval_ms);
nack_reason = should_nack_action(operation);
if (nack_reason != NULL) {
crm_notice("Discarding attempt to perform action %s on %s in state %s "
"(shutdown=%s)", operation, rsc->id,
fsa_state2string(controld_globals.fsa_state),
pcmk__btoa(pcmk_is_set(controld_globals.fsa_input_register,
R_SHUTDOWN)));
lrmd__set_result(op, PCMK_OCF_UNKNOWN_ERROR, PCMK_EXEC_INVALID,
nack_reason);
controld_ack_event_directly(NULL, NULL, rsc, op, rsc->id);
lrmd_free_event(op);
free(op_id);
return;
}
controld_record_pending_op(lrm_state->node_name, rsc, op);
op_id = pcmk__op_key(rsc->id, op->op_type, op->interval_ms);
if (op->interval_ms > 0) {
/* cancel it so we can then restart it without conflict */
cancel_op_key(lrm_state, rsc, op_id, FALSE);
}
rc = controld_execute_resource_agent(lrm_state, rsc->id, op->op_type,
op->user_data, op->interval_ms,
op->timeout, op->start_delay,
op->params, &call_id);
if (rc == pcmk_rc_ok) {
/* record all operations so we can wait
* for them to complete during shutdown
*/
char *call_id_s = make_stop_id(rsc->id, call_id);
active_op_t *pending = NULL;
pending = calloc(1, sizeof(active_op_t));
crm_trace("Recording pending op: %d - %s %s", call_id, op_id, call_id_s);
pending->call_id = call_id;
pending->interval_ms = op->interval_ms;
pending->op_type = strdup(operation);
pending->op_key = strdup(op_id);
pending->rsc_id = strdup(rsc->id);
pending->start_time = time(NULL);
pcmk__str_update(&pending->user_data, op->user_data);
if (crm_element_value_epoch(msg, PCMK_OPT_SHUTDOWN_LOCK,
&(pending->lock_time)) != pcmk_ok) {
pending->lock_time = 0;
}
g_hash_table_replace(lrm_state->active_ops, call_id_s, pending);
if ((op->interval_ms > 0)
&& (op->start_delay > START_DELAY_THRESHOLD)) {
int target_rc = PCMK_OCF_OK;
crm_info("Faking confirmation of %s: execution postponed for over 5 minutes", op_id);
decode_transition_key(op->user_data, NULL, NULL, NULL, &target_rc);
lrmd__set_result(op, target_rc, PCMK_EXEC_DONE, NULL);
controld_ack_event_directly(NULL, NULL, rsc, op, rsc->id);
}
pending->params = op->params;
op->params = NULL;
} else if (lrm_state_is_local(lrm_state)) {
crm_err("Could not initiate %s action for resource %s locally: %s "
CRM_XS " rc=%d", operation, rsc->id, pcmk_rc_str(rc), rc);
fake_op_status(lrm_state, op, PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR, pcmk_rc_str(rc));
process_lrm_event(lrm_state, op, NULL, NULL);
register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL);
} else {
crm_err("Could not initiate %s action for resource %s remotely on %s: "
"%s " CRM_XS " rc=%d",
operation, rsc->id, lrm_state->node_name, pcmk_rc_str(rc), rc);
fake_op_status(lrm_state, op, PCMK_EXEC_NOT_CONNECTED,
PCMK_OCF_UNKNOWN_ERROR, pcmk_rc_str(rc));
process_lrm_event(lrm_state, op, NULL, NULL);
}
free(op_id);
lrmd_free_event(op);
}
void
do_lrm_event(long long action,
enum crmd_fsa_cause cause,
enum crmd_fsa_state cur_state, enum crmd_fsa_input cur_input, fsa_data_t * msg_data)
{
CRM_CHECK(FALSE, return);
}
static char *
unescape_newlines(const char *string)
{
char *pch = NULL;
char *ret = NULL;
static const char *escaped_newline = "\\n";
if (!string) {
return NULL;
}
ret = strdup(string);
pch = strstr(ret, escaped_newline);
while (pch != NULL) {
/* Replace newline escape pattern with actual newline (and a space so we
* don't have to shuffle the rest of the buffer)
*/
pch[0] = '\n';
pch[1] = ' ';
pch = strstr(pch, escaped_newline);
}
return ret;
}
static bool
did_lrm_rsc_op_fail(lrm_state_t *lrm_state, const char * rsc_id,
const char * op_type, guint interval_ms)
{
rsc_history_t *entry = NULL;
CRM_CHECK(lrm_state != NULL, return FALSE);
CRM_CHECK(rsc_id != NULL, return FALSE);
CRM_CHECK(op_type != NULL, return FALSE);
entry = g_hash_table_lookup(lrm_state->resource_history, rsc_id);
if (entry == NULL || entry->failed == NULL) {
return FALSE;
}
if (pcmk__str_eq(entry->failed->rsc_id, rsc_id, pcmk__str_none)
&& pcmk__str_eq(entry->failed->op_type, op_type, pcmk__str_casei)
&& entry->failed->interval_ms == interval_ms) {
return TRUE;
}
return FALSE;
}
/*!
* \internal
* \brief Log the result of an executor action (actual or synthesized)
*
* \param[in] op Executor action to log result for
* \param[in] op_key Operation key for action
* \param[in] node_name Name of node action was performed on, if known
* \param[in] confirmed Whether to log that graph action was confirmed
*/
static void
log_executor_event(const lrmd_event_data_t *op, const char *op_key,
const char *node_name, gboolean confirmed)
{
int log_level = LOG_ERR;
GString *str = g_string_sized_new(100); // reasonable starting size
pcmk__g_strcat(str,
"Result of ",
pcmk__readable_action(op->op_type, op->interval_ms),
" operation for ", op->rsc_id, NULL);
if (node_name != NULL) {
pcmk__g_strcat(str, " on ", node_name, NULL);
}
switch (op->op_status) {
case PCMK_EXEC_DONE:
log_level = LOG_NOTICE;
pcmk__g_strcat(str, ": ", services_ocf_exitcode_str(op->rc), NULL);
break;
case PCMK_EXEC_TIMEOUT:
pcmk__g_strcat(str,
": ", pcmk_exec_status_str(op->op_status), " after ",
pcmk__readable_interval(op->timeout), NULL);
break;
case PCMK_EXEC_CANCELLED:
log_level = LOG_INFO;
/* order of __attribute__ and Fall through comment is IMPORTANT!
* do not change it without proper testing with both clang and gcc
* in multiple versions.
* the clang check allows to build with all versions of clang.
* the has_c_attribute check is to workaround a bug in clang version
* in rhel7. has_attribute would happily return "YES SIR WE GOT IT"
* and fail the build the next line.
*/
#ifdef __clang__
#ifdef __has_c_attribute
#if __has_attribute(fallthrough)
__attribute__((fallthrough));
#endif
#endif
#endif
// Fall through
default:
pcmk__g_strcat(str, ": ", pcmk_exec_status_str(op->op_status),
NULL);
}
if ((op->exit_reason != NULL)
&& ((op->op_status != PCMK_EXEC_DONE) || (op->rc != PCMK_OCF_OK))) {
pcmk__g_strcat(str, " (", op->exit_reason, ")", NULL);
}
g_string_append(str, " " CRM_XS);
g_string_append_printf(str, " graph action %sconfirmed; call=%d key=%s",
(confirmed? "" : "un"), op->call_id, op_key);
if (op->op_status == PCMK_EXEC_DONE) {
g_string_append_printf(str, " rc=%d", op->rc);
}
do_crm_log(log_level, "%s", str->str);
g_string_free(str, TRUE);
/* The services library has already logged the output at info or debug
* level, so just raise to notice if it looks like a failure.
*/
if ((op->output != NULL) && (op->rc != PCMK_OCF_OK)) {
char *prefix = crm_strdup_printf(PCMK__OP_FMT "@%s output",
op->rsc_id, op->op_type,
op->interval_ms, node_name);
crm_log_output(LOG_NOTICE, prefix, op->output);
free(prefix);
}
}
void
process_lrm_event(lrm_state_t *lrm_state, lrmd_event_data_t *op,
active_op_t *pending, const xmlNode *action_xml)
{
char *op_id = NULL;
char *op_key = NULL;
gboolean remove = FALSE;
gboolean removed = FALSE;
bool need_direct_ack = FALSE;
lrmd_rsc_info_t *rsc = NULL;
const char *node_name = NULL;
CRM_CHECK(op != NULL, return);
CRM_CHECK(op->rsc_id != NULL, return);
// Remap new status codes for older DCs
if (compare_version(controld_globals.dc_version, "3.2.0") < 0) {
switch (op->op_status) {
case PCMK_EXEC_NOT_CONNECTED:
lrmd__set_result(op, PCMK_OCF_CONNECTION_DIED,
PCMK_EXEC_ERROR, op->exit_reason);
break;
case PCMK_EXEC_INVALID:
lrmd__set_result(op, CRM_DIRECT_NACK_RC, PCMK_EXEC_ERROR,
op->exit_reason);
break;
default:
break;
}
}
op_id = make_stop_id(op->rsc_id, op->call_id);
op_key = pcmk__op_key(op->rsc_id, op->op_type, op->interval_ms);
// Get resource info if available (from executor state or action XML)
if (lrm_state) {
rsc = lrm_state_get_rsc_info(lrm_state, op->rsc_id, 0);
}
if ((rsc == NULL) && action_xml) {
xmlNode *xml = find_xml_node(action_xml, XML_CIB_TAG_RESOURCE, TRUE);
const char *standard = crm_element_value(xml, XML_AGENT_ATTR_CLASS);
const char *provider = crm_element_value(xml, XML_AGENT_ATTR_PROVIDER);
const char *type = crm_element_value(xml, XML_ATTR_TYPE);
if (standard && type) {
crm_info("%s agent information not cached, using %s%s%s:%s from action XML",
op->rsc_id, standard,
(provider? ":" : ""), (provider? provider : ""), type);
rsc = lrmd_new_rsc_info(op->rsc_id, standard, provider, type);
} else {
crm_err("Can't process %s result because %s agent information not cached or in XML",
op_key, op->rsc_id);
}
}
// Get node name if available (from executor state or action XML)
if (lrm_state) {
node_name = lrm_state->node_name;
} else if (action_xml) {
node_name = crm_element_value(action_xml, XML_LRM_ATTR_TARGET);
}
if(pending == NULL) {
remove = TRUE;
if (lrm_state) {
pending = g_hash_table_lookup(lrm_state->active_ops, op_id);
}
}
if (op->op_status == PCMK_EXEC_ERROR) {
switch(op->rc) {
case PCMK_OCF_NOT_RUNNING:
case PCMK_OCF_RUNNING_PROMOTED:
case PCMK_OCF_DEGRADED:
case PCMK_OCF_DEGRADED_PROMOTED:
// Leave it to the TE/scheduler to decide if this is an error
op->op_status = PCMK_EXEC_DONE;
break;
default:
/* Nothing to do */
break;
}
}
if (op->op_status != PCMK_EXEC_CANCELLED) {
/* We might not record the result, so directly acknowledge it to the
* originator instead, so it doesn't time out waiting for the result
* (especially important if part of a transition).
*/
need_direct_ack = TRUE;
if (controld_action_is_recordable(op->op_type)) {
if (node_name && rsc) {
// We should record the result, and happily, we can
time_t lock_time = (pending == NULL)? 0 : pending->lock_time;
controld_update_resource_history(node_name, rsc, op, lock_time);
need_direct_ack = FALSE;
} else if (op->rsc_deleted) {
/* We shouldn't record the result (likely the resource was
* refreshed, cleaned, or removed while this operation was
* in flight).
*/
crm_notice("Not recording %s result in CIB because "
"resource information was removed since it was initiated",
op_key);
} else {
/* This shouldn't be possible; the executor didn't consider the
* resource deleted, but we couldn't find resource or node
* information.
*/
crm_err("Unable to record %s result in CIB: %s", op_key,
(node_name? "No resource information" : "No node name"));
}
}
} else if (op->interval_ms == 0) {
/* A non-recurring operation was cancelled. Most likely, the
* never-initiated action was removed from the executor's pending
* operations list upon resource removal.
*/
need_direct_ack = TRUE;
} else if (pending == NULL) {
/* This recurring operation was cancelled, but was not pending. No
* transition actions are waiting on it, nothing needs to be done.
*/
} else if (op->user_data == NULL) {
/* This recurring operation was cancelled and pending, but we don't
* have a transition key. This should never happen.
*/
crm_err("Recurring operation %s was cancelled without transition information",
op_key);
} else if (pcmk_is_set(pending->flags, active_op_remove)) {
/* This recurring operation was cancelled (by us) and pending, and we
* have been waiting for it to finish.
*/
if (lrm_state) {
controld_delete_action_history(op);
}
/* Directly acknowledge failed recurring actions here. The above call to
* controld_delete_action_history() will not erase any corresponding
* last_failure entry, which means that the DC won't confirm the
* cancellation via process_op_deletion(), and the transition would
* otherwise wait for the action timer to pop.
*/
if (did_lrm_rsc_op_fail(lrm_state, pending->rsc_id,
pending->op_type, pending->interval_ms)) {
need_direct_ack = TRUE;
}
} else if (op->rsc_deleted) {
/* This recurring operation was cancelled (but not by us, and the
* executor does not have resource information, likely due to resource
* cleanup, refresh, or removal) and pending.
*/
crm_debug("Recurring op %s was cancelled due to resource deletion",
op_key);
need_direct_ack = TRUE;
} else {
/* This recurring operation was cancelled (but not by us, likely by the
* executor before stopping the resource) and pending. We don't need to
* do anything special.
*/
}
if (need_direct_ack) {
controld_ack_event_directly(NULL, NULL, NULL, op, op->rsc_id);
}
if(remove == FALSE) {
/* The caller will do this afterwards, but keep the logging consistent */
removed = TRUE;
} else if (lrm_state && ((op->interval_ms == 0)
|| (op->op_status == PCMK_EXEC_CANCELLED))) {
gboolean found = g_hash_table_remove(lrm_state->active_ops, op_id);
if (op->interval_ms != 0) {
removed = TRUE;
} else if (found) {
removed = TRUE;
crm_trace("Op %s (call=%d, stop-id=%s, remaining=%u): Confirmed",
op_key, op->call_id, op_id,
g_hash_table_size(lrm_state->active_ops));
}
}
log_executor_event(op, op_key, node_name, removed);
if (lrm_state) {
if (!pcmk__str_eq(op->op_type, PCMK_ACTION_META_DATA,
pcmk__str_casei)) {
crmd_alert_resource_op(lrm_state->node_name, op);
} else if (rsc && (op->rc == PCMK_OCF_OK)) {
char *metadata = unescape_newlines(op->output);
controld_cache_metadata(lrm_state->metadata_cache, rsc, metadata);
free(metadata);
}
}
if (op->rsc_deleted) {
crm_info("Deletion of resource '%s' complete after %s", op->rsc_id, op_key);
if (lrm_state) {
delete_rsc_entry(lrm_state, NULL, op->rsc_id, NULL, pcmk_ok, NULL,
true);
}
}
/* If a shutdown was escalated while operations were pending,
* then the FSA will be stalled right now... allow it to continue
*/
controld_trigger_fsa();
if (lrm_state && rsc) {
update_history_cache(lrm_state, rsc, op);
}
lrmd_free_rsc_info(rsc);
free(op_key);
free(op_id);
}
diff --git a/include/crm_internal.h b/include/crm_internal.h
index 17e5803c7a..a2f1e467ce 100644
--- a/include/crm_internal.h
+++ b/include/crm_internal.h
@@ -1,129 +1,130 @@
/*
* Copyright 2006-2023 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 CRM_INTERNAL__H
# define CRM_INTERNAL__H
# ifndef PCMK__CONFIG_H
# define PCMK__CONFIG_H
# include <config.h>
# endif
# include <portability.h>
/* Our minimum glib dependency is 2.42. Define that as both the minimum and
* maximum glib APIs that are allowed (i.e. APIs that were already deprecated
* in 2.42, and APIs introduced after 2.42, cannot be used by Pacemaker code).
*/
#define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_42
#define GLIB_VERSION_MAX_ALLOWED GLIB_VERSION_2_42
# include <glib.h>
# include <stdbool.h>
# include <libxml/tree.h>
/* Public API headers can guard including deprecated API headers with this
* symbol, thus preventing internal code (which includes this header) from using
* deprecated APIs, while still allowing external code to use them by default.
*/
#define PCMK_ALLOW_DEPRECATED 0
# include <crm/lrmd.h>
# include <crm/common/logging.h>
# include <crm/common/logging_internal.h>
# include <crm/common/ipc_internal.h>
# include <crm/common/options_internal.h>
# include <crm/common/output_internal.h>
# include <crm/common/xml_internal.h>
# include <crm/common/internal.h>
# include <locale.h>
# include <gettext.h>
#define N_(String) (String)
#ifdef ENABLE_NLS
# define _(String) gettext(String)
#else
# define _(String) (String)
#endif
/*
* XML attribute names used only by internal code
*/
#define PCMK__XA_ATTR_DAMPENING "attr_dampening"
#define PCMK__XA_ATTR_FORCE "attrd_is_force_write"
#define PCMK__XA_ATTR_INTERVAL "attr_clear_interval"
#define PCMK__XA_ATTR_IS_PRIVATE "attr_is_private"
#define PCMK__XA_ATTR_IS_REMOTE "attr_is_remote"
#define PCMK__XA_ATTR_NAME "attr_name"
#define PCMK__XA_ATTR_NODE_ID "attr_host_id"
#define PCMK__XA_ATTR_NODE_NAME "attr_host"
#define PCMK__XA_ATTR_OPERATION "attr_clear_operation"
#define PCMK__XA_ATTR_PATTERN "attr_regex"
#define PCMK__XA_ATTR_RESOURCE "attr_resource"
#define PCMK__XA_ATTR_SECTION "attr_section"
#define PCMK__XA_ATTR_SET "attr_set"
#define PCMK__XA_ATTR_SET_TYPE "attr_set_type"
#define PCMK__XA_ATTR_SYNC_POINT "attr_sync_point"
#define PCMK__XA_ATTR_USER "attr_user"
#define PCMK__XA_ATTR_UUID "attr_key"
#define PCMK__XA_ATTR_VALUE "attr_value"
#define PCMK__XA_ATTR_VERSION "attr_version"
#define PCMK__XA_ATTR_WRITER "attr_writer"
#define PCMK__XA_CONFIG_ERRORS "config-errors"
#define PCMK__XA_CONFIG_WARNINGS "config-warnings"
#define PCMK__XA_CONFIRM "confirm"
#define PCMK__XA_CONN_HOST "connection_host"
#define PCMK__XA_CRMD "crmd"
#define PCMK__XA_DIGEST "digest"
#define PCMK__XA_EXPECTED "expected"
#define PCMK__XA_FILE "file"
#define PCMK__XA_GRAPH_ERRORS "graph-errors"
#define PCMK__XA_GRAPH_WARNINGS "graph-warnings"
#define PCMK__XA_IN_CCM "in_ccm"
#define PCMK__XA_JOIN "join"
+#define PCMK__XA_LONG_ID "long-id"
#define PCMK__XA_MODE "mode"
#define PCMK__XA_NODE_START_STATE "node_start_state"
#define PCMK__XA_PATH "path"
#define PCMK__XA_REAP "reap"
#define PCMK__XA_SCHEMA "schema"
#define PCMK__XA_SCHEMAS "schemas"
#define PCMK__XA_TASK "task"
#define PCMK__XA_UPTIME "uptime"
/*
* IPC service names that are only used internally
*/
# define PCMK__SERVER_BASED_RO "cib_ro"
# define PCMK__SERVER_BASED_RW "cib_rw"
# define PCMK__SERVER_BASED_SHM "cib_shm"
/*
* IPC commands that can be sent to Pacemaker daemons
*/
#define PCMK__ATTRD_CMD_PEER_REMOVE "peer-remove"
#define PCMK__ATTRD_CMD_UPDATE "update"
#define PCMK__ATTRD_CMD_UPDATE_BOTH "update-both"
#define PCMK__ATTRD_CMD_UPDATE_DELAY "update-delay"
#define PCMK__ATTRD_CMD_QUERY "query"
#define PCMK__ATTRD_CMD_REFRESH "refresh"
#define PCMK__ATTRD_CMD_FLUSH "flush"
#define PCMK__ATTRD_CMD_SYNC "sync"
#define PCMK__ATTRD_CMD_SYNC_RESPONSE "sync-response"
#define PCMK__ATTRD_CMD_CLEAR_FAILURE "clear-failure"
#define PCMK__ATTRD_CMD_CONFIRM "confirm"
#define PCMK__CONTROLD_CMD_NODES "list-nodes"
#endif /* CRM_INTERNAL__H */
diff --git a/lib/common/ipc_controld.c b/lib/common/ipc_controld.c
index 5198c9dd73..d46fff3e64 100644
--- a/lib/common/ipc_controld.c
+++ b/lib/common/ipc_controld.c
@@ -1,657 +1,657 @@
/*
* Copyright 2020-2024 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 <stdbool.h>
#include <errno.h>
#include <libxml/tree.h>
#include <crm/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/ipc.h>
#include <crm/common/ipc_internal.h>
#include <crm/common/ipc_controld.h>
#include "crmcommon_private.h"
struct controld_api_private_s {
char *client_uuid;
unsigned int replies_expected;
};
/*!
* \internal
* \brief Get a string representation of a controller API reply type
*
* \param[in] reply Controller API reply type
*
* \return String representation of a controller API reply type
*/
const char *
pcmk__controld_api_reply2str(enum pcmk_controld_api_reply reply)
{
switch (reply) {
case pcmk_controld_reply_reprobe:
return "reprobe";
case pcmk_controld_reply_info:
return "info";
case pcmk_controld_reply_resource:
return "resource";
case pcmk_controld_reply_ping:
return "ping";
case pcmk_controld_reply_nodes:
return "nodes";
default:
return "unknown";
}
}
// \return Standard Pacemaker return code
static int
new_data(pcmk_ipc_api_t *api)
{
struct controld_api_private_s *private = NULL;
api->api_data = calloc(1, sizeof(struct controld_api_private_s));
if (api->api_data == NULL) {
return errno;
}
private = api->api_data;
/* This is set to the PID because that's how it was always done, but PIDs
* are not unique because clients can be remote. The value appears to be
* unused other than as part of F_CRM_SYS_FROM in IPC requests, which is
* only compared against the internal system names (CRM_SYSTEM_TENGINE,
* etc.), so it shouldn't be a problem.
*/
private->client_uuid = pcmk__getpid_s();
/* @TODO Implement a call ID model similar to the CIB, executor, and fencer
* IPC APIs, so that requests and replies can be matched, and
* duplicate replies can be discarded.
*/
return pcmk_rc_ok;
}
static void
free_data(void *data)
{
free(((struct controld_api_private_s *) data)->client_uuid);
free(data);
}
// \return Standard Pacemaker return code
static int
post_connect(pcmk_ipc_api_t *api)
{
/* The controller currently requires clients to register via a hello
* request, but does not reply back.
*/
struct controld_api_private_s *private = api->api_data;
const char *client_name = crm_system_name? crm_system_name : "client";
xmlNode *hello;
int rc;
hello = create_hello_message(private->client_uuid, client_name,
PCMK__CONTROLD_API_MAJOR,
PCMK__CONTROLD_API_MINOR);
rc = pcmk__send_ipc_request(api, hello);
free_xml(hello);
if (rc != pcmk_rc_ok) {
crm_info("Could not send IPC hello to %s: %s " CRM_XS " rc=%s",
pcmk_ipc_name(api, true), pcmk_rc_str(rc), rc);
} else {
crm_debug("Sent IPC hello to %s", pcmk_ipc_name(api, true));
}
return rc;
}
static void
set_node_info_data(pcmk_controld_api_reply_t *data, xmlNode *msg_data)
{
data->reply_type = pcmk_controld_reply_info;
if (msg_data == NULL) {
return;
}
data->data.node_info.have_quorum =
pcmk__xe_attr_is_true(msg_data, PCMK_XA_HAVE_QUORUM);
data->data.node_info.is_remote = pcmk__xe_attr_is_true(msg_data, XML_NODE_IS_REMOTE);
/* Integer node_info.id is currently valid only for Corosync nodes.
*
* @TODO: Improve handling after crm_node_t is refactored to handle layer-
* specific data better.
*/
crm_element_value_int(msg_data, PCMK_XA_ID, &(data->data.node_info.id));
data->data.node_info.uuid = crm_element_value(msg_data, PCMK_XA_ID);
data->data.node_info.uname = crm_element_value(msg_data, XML_ATTR_UNAME);
data->data.node_info.state = crm_element_value(msg_data, PCMK__XA_CRMD);
}
static void
set_ping_data(pcmk_controld_api_reply_t *data, xmlNode *msg_data)
{
data->reply_type = pcmk_controld_reply_ping;
if (msg_data == NULL) {
return;
}
data->data.ping.sys_from = crm_element_value(msg_data,
XML_PING_ATTR_SYSFROM);
data->data.ping.fsa_state = crm_element_value(msg_data,
XML_PING_ATTR_CRMDSTATE);
data->data.ping.result = crm_element_value(msg_data, XML_PING_ATTR_STATUS);
}
static void
set_nodes_data(pcmk_controld_api_reply_t *data, xmlNode *msg_data)
{
pcmk_controld_api_node_t *node_info;
data->reply_type = pcmk_controld_reply_nodes;
for (xmlNode *node = first_named_child(msg_data, XML_CIB_TAG_NODE);
node != NULL; node = crm_next_same_xml(node)) {
long long id_ll = 0;
node_info = calloc(1, sizeof(pcmk_controld_api_node_t));
crm_element_value_ll(node, PCMK_XA_ID, &id_ll);
if (id_ll > 0) {
node_info->id = id_ll;
}
node_info->uname = crm_element_value(node, XML_ATTR_UNAME);
node_info->state = crm_element_value(node, PCMK__XA_IN_CCM);
data->data.nodes = g_list_prepend(data->data.nodes, node_info);
}
}
static bool
reply_expected(pcmk_ipc_api_t *api, const xmlNode *request)
{
// We only need to handle commands that API functions can send
return pcmk__str_any_of(crm_element_value(request, F_CRM_TASK),
PCMK__CONTROLD_CMD_NODES,
CRM_OP_LRM_DELETE,
CRM_OP_LRM_FAIL,
CRM_OP_NODE_INFO,
CRM_OP_PING,
CRM_OP_REPROBE,
CRM_OP_RM_NODE_CACHE,
NULL);
}
static bool
dispatch(pcmk_ipc_api_t *api, xmlNode *reply)
{
struct controld_api_private_s *private = api->api_data;
crm_exit_t status = CRM_EX_OK;
xmlNode *msg_data = NULL;
const char *value = NULL;
pcmk_controld_api_reply_t reply_data = {
pcmk_controld_reply_unknown, NULL, NULL,
};
if (pcmk__xe_is(reply, "ack")) {
/* ACKs are trivial responses that do not count toward expected replies,
* and do not have all the fields that validation requires, so skip that
* processing.
*/
return private->replies_expected > 0;
}
if (private->replies_expected > 0) {
private->replies_expected--;
}
// Do some basic validation of the reply
/* @TODO We should be able to verify that value is always a response, but
* currently the controller doesn't always properly set the type. Even
* if we fix the controller, we'll still need to handle replies from
* old versions (feature set could be used to differentiate).
*/
value = crm_element_value(reply, F_CRM_MSG_TYPE);
if (pcmk__str_empty(value)
|| !pcmk__str_any_of(value, XML_ATTR_REQUEST, XML_ATTR_RESPONSE, NULL)) {
crm_info("Unrecognizable message from controller: "
"invalid message type '%s'", pcmk__s(value, ""));
status = CRM_EX_PROTOCOL;
goto done;
}
if (pcmk__str_empty(crm_element_value(reply, XML_ATTR_REFERENCE))) {
crm_info("Unrecognizable message from controller: no reference");
status = CRM_EX_PROTOCOL;
goto done;
}
value = crm_element_value(reply, F_CRM_TASK);
if (pcmk__str_empty(value)) {
crm_info("Unrecognizable message from controller: no command name");
status = CRM_EX_PROTOCOL;
goto done;
}
// Parse useful info from reply
reply_data.feature_set = crm_element_value(reply, PCMK_XA_VERSION);
reply_data.host_from = crm_element_value(reply, F_CRM_HOST_FROM);
msg_data = get_message_xml(reply, F_CRM_DATA);
if (!strcmp(value, CRM_OP_REPROBE)) {
reply_data.reply_type = pcmk_controld_reply_reprobe;
} else if (!strcmp(value, CRM_OP_NODE_INFO)) {
set_node_info_data(&reply_data, msg_data);
} else if (!strcmp(value, CRM_OP_INVOKE_LRM)) {
reply_data.reply_type = pcmk_controld_reply_resource;
reply_data.data.resource.node_state = msg_data;
} else if (!strcmp(value, CRM_OP_PING)) {
set_ping_data(&reply_data, msg_data);
} else if (!strcmp(value, PCMK__CONTROLD_CMD_NODES)) {
set_nodes_data(&reply_data, msg_data);
} else {
crm_info("Unrecognizable message from controller: unknown command '%s'",
value);
status = CRM_EX_PROTOCOL;
}
done:
pcmk__call_ipc_callback(api, pcmk_ipc_event_reply, status, &reply_data);
// Free any reply data that was allocated
if (pcmk__str_eq(value, PCMK__CONTROLD_CMD_NODES, pcmk__str_casei)) {
g_list_free_full(reply_data.data.nodes, free);
}
return false; // No further replies needed
}
pcmk__ipc_methods_t *
pcmk__controld_api_methods(void)
{
pcmk__ipc_methods_t *cmds = calloc(1, sizeof(pcmk__ipc_methods_t));
if (cmds != NULL) {
cmds->new_data = new_data;
cmds->free_data = free_data;
cmds->post_connect = post_connect;
cmds->reply_expected = reply_expected;
cmds->dispatch = dispatch;
}
return cmds;
}
/*!
* \internal
* \brief Create XML for a controller IPC request
*
* \param[in] api Controller connection
* \param[in] op Controller IPC command name
* \param[in] node Node name to set as destination host
* \param[in] msg_data XML to attach to request as message data
*
* \return Newly allocated XML for request
*/
static xmlNode *
create_controller_request(const pcmk_ipc_api_t *api, const char *op,
const char *node, xmlNode *msg_data)
{
struct controld_api_private_s *private = NULL;
const char *sys_to = NULL;
if (api == NULL) {
return NULL;
}
private = api->api_data;
if ((node == NULL) && !strcmp(op, CRM_OP_PING)) {
sys_to = CRM_SYSTEM_DC;
} else {
sys_to = CRM_SYSTEM_CRMD;
}
return create_request(op, msg_data, node, sys_to,
(crm_system_name? crm_system_name : "client"),
private->client_uuid);
}
// \return Standard Pacemaker return code
static int
send_controller_request(pcmk_ipc_api_t *api, const xmlNode *request,
bool reply_is_expected)
{
if (crm_element_value(request, XML_ATTR_REFERENCE) == NULL) {
return EINVAL;
}
if (reply_is_expected) {
struct controld_api_private_s *private = api->api_data;
private->replies_expected++;
}
return pcmk__send_ipc_request(api, request);
}
static xmlNode *
create_reprobe_message_data(const char *target_node, const char *router_node)
{
xmlNode *msg_data;
msg_data = create_xml_node(NULL, "data_for_" CRM_OP_REPROBE);
crm_xml_add(msg_data, XML_LRM_ATTR_TARGET, target_node);
if ((router_node != NULL) && !pcmk__str_eq(router_node, target_node, pcmk__str_casei)) {
crm_xml_add(msg_data, XML_LRM_ATTR_ROUTER_NODE, router_node);
}
return msg_data;
}
/*!
* \brief Send a reprobe controller operation
*
* \param[in,out] api Controller connection
* \param[in] target_node Name of node to reprobe
* \param[in] router_node Router node for host
*
* \return Standard Pacemaker return code
* \note Event callback will get a reply of type pcmk_controld_reply_reprobe.
*/
int
pcmk_controld_api_reprobe(pcmk_ipc_api_t *api, const char *target_node,
const char *router_node)
{
xmlNode *request;
xmlNode *msg_data;
int rc = pcmk_rc_ok;
if (api == NULL) {
return EINVAL;
}
if (router_node == NULL) {
router_node = target_node;
}
crm_debug("Sending %s IPC request to reprobe %s via %s",
pcmk_ipc_name(api, true), pcmk__s(target_node, "local node"),
pcmk__s(router_node, "local node"));
msg_data = create_reprobe_message_data(target_node, router_node);
request = create_controller_request(api, CRM_OP_REPROBE, router_node,
msg_data);
rc = send_controller_request(api, request, true);
free_xml(msg_data);
free_xml(request);
return rc;
}
/*!
* \brief Send a "node info" controller operation
*
* \param[in,out] api Controller connection
* \param[in] nodeid ID of node to get info for (or 0 for local node)
*
* \return Standard Pacemaker return code
* \note Event callback will get a reply of type pcmk_controld_reply_info.
*/
int
pcmk_controld_api_node_info(pcmk_ipc_api_t *api, uint32_t nodeid)
{
xmlNode *request;
int rc = pcmk_rc_ok;
request = create_controller_request(api, CRM_OP_NODE_INFO, NULL, NULL);
if (request == NULL) {
return EINVAL;
}
if (nodeid > 0) {
crm_xml_set_id(request, "%lu", (unsigned long) nodeid);
}
rc = send_controller_request(api, request, true);
free_xml(request);
return rc;
}
/*!
* \brief Ask the controller for status
*
* \param[in,out] api Controller connection
* \param[in] node_name Name of node whose status is desired (NULL for DC)
*
* \return Standard Pacemaker return code
* \note Event callback will get a reply of type pcmk_controld_reply_ping.
*/
int
pcmk_controld_api_ping(pcmk_ipc_api_t *api, const char *node_name)
{
xmlNode *request;
int rc = pcmk_rc_ok;
request = create_controller_request(api, CRM_OP_PING, node_name, NULL);
if (request == NULL) {
return EINVAL;
}
rc = send_controller_request(api, request, true);
free_xml(request);
return rc;
}
/*!
* \brief Ask the controller for cluster information
*
* \param[in,out] api Controller connection
*
* \return Standard Pacemaker return code
* \note Event callback will get a reply of type pcmk_controld_reply_nodes.
*/
int
pcmk_controld_api_list_nodes(pcmk_ipc_api_t *api)
{
xmlNode *request;
int rc = EINVAL;
request = create_controller_request(api, PCMK__CONTROLD_CMD_NODES, NULL,
NULL);
if (request != NULL) {
rc = send_controller_request(api, request, true);
free_xml(request);
}
return rc;
}
// \return Standard Pacemaker return code
static int
controller_resource_op(pcmk_ipc_api_t *api, const char *op,
const char *target_node, const char *router_node,
bool cib_only, const char *rsc_id,
const char *rsc_long_id, const char *standard,
const char *provider, const char *type)
{
int rc = pcmk_rc_ok;
char *key;
xmlNode *request, *msg_data, *xml_rsc, *params;
if (api == NULL) {
return EINVAL;
}
if (router_node == NULL) {
router_node = target_node;
}
msg_data = create_xml_node(NULL, XML_GRAPH_TAG_RSC_OP);
/* The controller logs the transition key from resource op requests, so we
* need to have *something* for it.
* @TODO don't use "crm-resource"
*/
key = pcmk__transition_key(0, getpid(), 0,
"xxxxxxxx-xrsc-opxx-xcrm-resourcexxxx");
crm_xml_add(msg_data, XML_ATTR_TRANSITION_KEY, key);
free(key);
crm_xml_add(msg_data, XML_LRM_ATTR_TARGET, target_node);
if (!pcmk__str_eq(router_node, target_node, pcmk__str_casei)) {
crm_xml_add(msg_data, XML_LRM_ATTR_ROUTER_NODE, router_node);
}
if (cib_only) {
// Indicate that only the CIB needs to be cleaned
crm_xml_add(msg_data, PCMK__XA_MODE, XML_TAG_CIB);
}
xml_rsc = create_xml_node(msg_data, XML_CIB_TAG_RESOURCE);
crm_xml_add(xml_rsc, PCMK_XA_ID, rsc_id);
- crm_xml_add(xml_rsc, XML_ATTR_ID_LONG, rsc_long_id);
+ crm_xml_add(xml_rsc, PCMK__XA_LONG_ID, rsc_long_id);
crm_xml_add(xml_rsc, XML_AGENT_ATTR_CLASS, standard);
crm_xml_add(xml_rsc, XML_AGENT_ATTR_PROVIDER, provider);
crm_xml_add(xml_rsc, XML_ATTR_TYPE, type);
params = create_xml_node(msg_data, XML_TAG_ATTRS);
crm_xml_add(params, PCMK_XA_CRM_FEATURE_SET, CRM_FEATURE_SET);
// The controller parses the timeout from the request
key = crm_meta_name(XML_ATTR_TIMEOUT);
crm_xml_add(params, key, "60000"); /* 1 minute */ //@TODO pass as arg
free(key);
request = create_controller_request(api, op, router_node, msg_data);
rc = send_controller_request(api, request, true);
free_xml(msg_data);
free_xml(request);
return rc;
}
/*!
* \brief Ask the controller to fail a resource
*
* \param[in,out] api Controller connection
* \param[in] target_node Name of node resource is on
* \param[in] router_node Router node for target
* \param[in] rsc_id ID of resource to fail
* \param[in] rsc_long_id Long ID of resource (if any)
* \param[in] standard Standard of resource
* \param[in] provider Provider of resource (if any)
* \param[in] type Type of resource to fail
*
* \return Standard Pacemaker return code
* \note Event callback will get a reply of type pcmk_controld_reply_resource.
*/
int
pcmk_controld_api_fail(pcmk_ipc_api_t *api,
const char *target_node, const char *router_node,
const char *rsc_id, const char *rsc_long_id,
const char *standard, const char *provider,
const char *type)
{
crm_debug("Sending %s IPC request to fail %s (a.k.a. %s) on %s via %s",
pcmk_ipc_name(api, true), pcmk__s(rsc_id, "unknown resource"),
pcmk__s(rsc_long_id, "no other names"),
pcmk__s(target_node, "unspecified node"),
pcmk__s(router_node, "unspecified node"));
return controller_resource_op(api, CRM_OP_LRM_FAIL, target_node,
router_node, false, rsc_id, rsc_long_id,
standard, provider, type);
}
/*!
* \brief Ask the controller to refresh a resource
*
* \param[in,out] api Controller connection
* \param[in] target_node Name of node resource is on
* \param[in] router_node Router node for target
* \param[in] rsc_id ID of resource to refresh
* \param[in] rsc_long_id Long ID of resource (if any)
* \param[in] standard Standard of resource
* \param[in] provider Provider of resource (if any)
* \param[in] type Type of resource
* \param[in] cib_only If true, clean resource from CIB only
*
* \return Standard Pacemaker return code
* \note Event callback will get a reply of type pcmk_controld_reply_resource.
*/
int
pcmk_controld_api_refresh(pcmk_ipc_api_t *api, const char *target_node,
const char *router_node,
const char *rsc_id, const char *rsc_long_id,
const char *standard, const char *provider,
const char *type, bool cib_only)
{
crm_debug("Sending %s IPC request to refresh %s (a.k.a. %s) on %s via %s",
pcmk_ipc_name(api, true), pcmk__s(rsc_id, "unknown resource"),
pcmk__s(rsc_long_id, "no other names"),
pcmk__s(target_node, "unspecified node"),
pcmk__s(router_node, "unspecified node"));
return controller_resource_op(api, CRM_OP_LRM_DELETE, target_node,
router_node, cib_only, rsc_id, rsc_long_id,
standard, provider, type);
}
/*!
* \brief Get the number of IPC replies currently expected from the controller
*
* \param[in] api Controller IPC API connection
*
* \return Number of replies expected
*/
unsigned int
pcmk_controld_api_replies_expected(const pcmk_ipc_api_t *api)
{
struct controld_api_private_s *private = api->api_data;
return private->replies_expected;
}
/*!
* \brief Create XML for a controller IPC "hello" message
*
* \deprecated This function is deprecated as part of the public C API.
*/
// \todo make this static to this file when breaking API backward compatibility
xmlNode *
create_hello_message(const char *uuid, const char *client_name,
const char *major_version, const char *minor_version)
{
xmlNode *hello_node = NULL;
xmlNode *hello = NULL;
if (pcmk__str_empty(uuid) || pcmk__str_empty(client_name)
|| pcmk__str_empty(major_version) || pcmk__str_empty(minor_version)) {
crm_err("Could not create IPC hello message from %s (UUID %s): "
"missing information",
client_name? client_name : "unknown client",
uuid? uuid : "unknown");
return NULL;
}
hello_node = create_xml_node(NULL, XML_TAG_OPTIONS);
if (hello_node == NULL) {
crm_err("Could not create IPC hello message from %s (UUID %s): "
"Message data creation failed", client_name, uuid);
return NULL;
}
crm_xml_add(hello_node, "major_version", major_version);
crm_xml_add(hello_node, "minor_version", minor_version);
crm_xml_add(hello_node, "client_name", client_name);
crm_xml_add(hello_node, "client_uuid", uuid);
hello = create_request(CRM_OP_HELLO, hello_node, NULL, NULL, client_name, uuid);
if (hello == NULL) {
crm_err("Could not create IPC hello message from %s (UUID %s): "
"Request creation failed", client_name, uuid);
return NULL;
}
free_xml(hello_node);
crm_trace("Created hello message from %s (UUID %s)", client_name, uuid);
return hello;
}
diff --git a/lib/pacemaker/pcmk_graph_producer.c b/lib/pacemaker/pcmk_graph_producer.c
index 9299909b79..3753d64218 100644
--- a/lib/pacemaker/pcmk_graph_producer.c
+++ b/lib/pacemaker/pcmk_graph_producer.c
@@ -1,1097 +1,1097 @@
/*
* Copyright 2004-2024 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 <crm/crm.h>
#include <crm/cib.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <glib.h>
#include <pacemaker-internal.h>
#include "libpacemaker_private.h"
// Convenience macros for logging action properties
#define action_type_str(flags) \
(pcmk_is_set((flags), pcmk_action_pseudo)? "pseudo-action" : "action")
#define action_optional_str(flags) \
(pcmk_is_set((flags), pcmk_action_optional)? "optional" : "required")
#define action_runnable_str(flags) \
(pcmk_is_set((flags), pcmk_action_runnable)? "runnable" : "unrunnable")
#define action_node_str(a) \
(((a)->node == NULL)? "no node" : (a)->node->details->uname)
/*!
* \internal
* \brief Add an XML node tag for a specified ID
*
* \param[in] id Node UUID to add
* \param[in,out] xml Parent XML tag to add to
*/
static xmlNode*
add_node_to_xml_by_id(const char *id, xmlNode *xml)
{
xmlNode *node_xml;
node_xml = create_xml_node(xml, XML_CIB_TAG_NODE);
crm_xml_add(node_xml, PCMK_XA_ID, id);
return node_xml;
}
/*!
* \internal
* \brief Add an XML node tag for a specified node
*
* \param[in] node Node to add
* \param[in,out] xml XML to add node to
*/
static void
add_node_to_xml(const pcmk_node_t *node, void *xml)
{
add_node_to_xml_by_id(node->details->id, (xmlNode *) xml);
}
/*!
* \internal
* \brief Count (optionally add to XML) nodes needing maintenance state update
*
* \param[in,out] xml Parent XML tag to add to, if any
* \param[in] scheduler Scheduler data
*
* \return Count of nodes added
* \note Only Pacemaker Remote nodes are considered currently
*/
static int
add_maintenance_nodes(xmlNode *xml, const pcmk_scheduler_t *scheduler)
{
xmlNode *maintenance = NULL;
int count = 0;
if (xml != NULL) {
maintenance = create_xml_node(xml, XML_GRAPH_TAG_MAINTENANCE);
}
for (const GList *iter = scheduler->nodes;
iter != NULL; iter = iter->next) {
const pcmk_node_t *node = iter->data;
if (pe__is_guest_or_remote_node(node) &&
(node->details->maintenance != node->details->remote_maintenance)) {
if (maintenance != NULL) {
crm_xml_add(add_node_to_xml_by_id(node->details->id,
maintenance),
XML_NODE_IS_MAINTENANCE,
(node->details->maintenance? "1" : "0"));
}
count++;
}
}
crm_trace("%s %d nodes in need of maintenance mode update in state",
((maintenance == NULL)? "Counted" : "Added"), count);
return count;
}
/*!
* \internal
* \brief Add pseudo action with nodes needing maintenance state update
*
* \param[in,out] scheduler Scheduler data
*/
static void
add_maintenance_update(pcmk_scheduler_t *scheduler)
{
pcmk_action_t *action = NULL;
if (add_maintenance_nodes(NULL, scheduler) != 0) {
action = get_pseudo_op(PCMK_ACTION_MAINTENANCE_NODES, scheduler);
pcmk__set_action_flags(action, pcmk_action_always_in_graph);
}
}
/*!
* \internal
* \brief Add XML with nodes that an action is expected to bring down
*
* If a specified action is expected to bring any nodes down, add an XML block
* with their UUIDs. When a node is lost, this allows the controller to
* determine whether it was expected.
*
* \param[in,out] xml Parent XML tag to add to
* \param[in] action Action to check for downed nodes
*/
static void
add_downed_nodes(xmlNode *xml, const pcmk_action_t *action)
{
CRM_CHECK((xml != NULL) && (action != NULL) && (action->node != NULL),
return);
if (pcmk__str_eq(action->task, PCMK_ACTION_DO_SHUTDOWN, pcmk__str_none)) {
/* Shutdown makes the action's node down */
xmlNode *downed = create_xml_node(xml, XML_GRAPH_TAG_DOWNED);
add_node_to_xml_by_id(action->node->details->id, downed);
} else if (pcmk__str_eq(action->task, PCMK_ACTION_STONITH,
pcmk__str_none)) {
/* Fencing makes the action's node and any hosted guest nodes down */
const char *fence = g_hash_table_lookup(action->meta, "stonith_action");
if (pcmk__is_fencing_action(fence)) {
xmlNode *downed = create_xml_node(xml, XML_GRAPH_TAG_DOWNED);
add_node_to_xml_by_id(action->node->details->id, downed);
pe_foreach_guest_node(action->node->details->data_set,
action->node, add_node_to_xml, downed);
}
} else if (action->rsc && action->rsc->is_remote_node
&& pcmk__str_eq(action->task, PCMK_ACTION_STOP,
pcmk__str_none)) {
/* Stopping a remote connection resource makes connected node down,
* unless it's part of a migration
*/
GList *iter;
pcmk_action_t *input;
bool migrating = false;
for (iter = action->actions_before; iter != NULL; iter = iter->next) {
input = ((pcmk__related_action_t *) iter->data)->action;
if ((input->rsc != NULL)
&& pcmk__str_eq(action->rsc->id, input->rsc->id, pcmk__str_none)
&& pcmk__str_eq(input->task, PCMK_ACTION_MIGRATE_FROM,
pcmk__str_none)) {
migrating = true;
break;
}
}
if (!migrating) {
xmlNode *downed = create_xml_node(xml, XML_GRAPH_TAG_DOWNED);
add_node_to_xml_by_id(action->rsc->id, downed);
}
}
}
/*!
* \internal
* \brief Create a transition graph operation key for a clone action
*
* \param[in] action Clone action
* \param[in] interval_ms Action interval in milliseconds
*
* \return Newly allocated string with transition graph operation key
*/
static char *
clone_op_key(const pcmk_action_t *action, guint interval_ms)
{
if (pcmk__str_eq(action->task, PCMK_ACTION_NOTIFY, pcmk__str_none)) {
const char *n_type = g_hash_table_lookup(action->meta, "notify_type");
const char *n_task = g_hash_table_lookup(action->meta,
"notify_operation");
CRM_LOG_ASSERT((n_type != NULL) && (n_task != NULL));
return pcmk__notify_key(action->rsc->clone_name, n_type, n_task);
} else if (action->cancel_task != NULL) {
return pcmk__op_key(action->rsc->clone_name, action->cancel_task,
interval_ms);
} else {
return pcmk__op_key(action->rsc->clone_name, action->task, interval_ms);
}
}
/*!
* \internal
* \brief Add node details to transition graph action XML
*
* \param[in] action Scheduled action
* \param[in,out] xml Transition graph action XML for \p action
*/
static void
add_node_details(const pcmk_action_t *action, xmlNode *xml)
{
pcmk_node_t *router_node = pcmk__connection_host_for_action(action);
crm_xml_add(xml, XML_LRM_ATTR_TARGET, action->node->details->uname);
crm_xml_add(xml, XML_LRM_ATTR_TARGET_UUID, action->node->details->id);
if (router_node != NULL) {
crm_xml_add(xml, XML_LRM_ATTR_ROUTER_NODE, router_node->details->uname);
}
}
/*!
* \internal
* \brief Add resource details to transition graph action XML
*
* \param[in] action Scheduled action
* \param[in,out] action_xml Transition graph action XML for \p action
*/
static void
add_resource_details(const pcmk_action_t *action, xmlNode *action_xml)
{
xmlNode *rsc_xml = NULL;
const char *attr_list[] = {
XML_AGENT_ATTR_CLASS,
XML_AGENT_ATTR_PROVIDER,
XML_ATTR_TYPE
};
/* If a resource is locked to a node via PCMK_OPT_SHUTDOWN_LOCK, mark its
* actions so the controller can preserve the lock when the action
* completes.
*/
if (pcmk__action_locks_rsc_to_node(action)) {
crm_xml_add_ll(action_xml, PCMK_OPT_SHUTDOWN_LOCK,
(long long) action->rsc->lock_time);
}
// List affected resource
rsc_xml = create_xml_node(action_xml,
(const char *) action->rsc->xml->name);
if (pcmk_is_set(action->rsc->flags, pcmk_rsc_removed)
&& (action->rsc->clone_name != NULL)) {
/* Use the numbered instance name here, because if there is more
* than one instance on a node, we need to make sure the command
* goes to the right one.
*
* This is important even for anonymous clones, because the clone's
* unique meta-attribute might have just been toggled from on to
* off.
*/
crm_debug("Using orphan clone name %s instead of %s",
action->rsc->id, action->rsc->clone_name);
crm_xml_add(rsc_xml, PCMK_XA_ID, action->rsc->clone_name);
- crm_xml_add(rsc_xml, XML_ATTR_ID_LONG, action->rsc->id);
+ crm_xml_add(rsc_xml, PCMK__XA_LONG_ID, action->rsc->id);
} else if (!pcmk_is_set(action->rsc->flags, pcmk_rsc_unique)) {
const char *xml_id = ID(action->rsc->xml);
crm_debug("Using anonymous clone name %s for %s (aka %s)",
xml_id, action->rsc->id, action->rsc->clone_name);
/* ID is what we'd like client to use
- * ID_LONG is what they might know it as instead
+ * LONG_ID is what they might know it as instead
*
- * ID_LONG is only strictly needed /here/ during the
+ * LONG_ID is only strictly needed /here/ during the
* transition period until all nodes in the cluster
* are running the new software /and/ have rebooted
* once (meaning that they've only ever spoken to a DC
* supporting this feature).
*
* If anyone toggles the unique flag to 'on', the
* 'instance free' name will correspond to an orphan
* and fall into the clause above instead
*/
crm_xml_add(rsc_xml, PCMK_XA_ID, xml_id);
if ((action->rsc->clone_name != NULL)
&& !pcmk__str_eq(xml_id, action->rsc->clone_name,
pcmk__str_none)) {
- crm_xml_add(rsc_xml, XML_ATTR_ID_LONG, action->rsc->clone_name);
+ crm_xml_add(rsc_xml, PCMK__XA_LONG_ID, action->rsc->clone_name);
} else {
- crm_xml_add(rsc_xml, XML_ATTR_ID_LONG, action->rsc->id);
+ crm_xml_add(rsc_xml, PCMK__XA_LONG_ID, action->rsc->id);
}
} else {
CRM_ASSERT(action->rsc->clone_name == NULL);
crm_xml_add(rsc_xml, PCMK_XA_ID, action->rsc->id);
}
for (int lpc = 0; lpc < PCMK__NELEM(attr_list); lpc++) {
crm_xml_add(rsc_xml, attr_list[lpc],
g_hash_table_lookup(action->rsc->meta, attr_list[lpc]));
}
}
/*!
* \internal
* \brief Add action attributes to transition graph action XML
*
* \param[in,out] action Scheduled action
* \param[in,out] action_xml Transition graph action XML for \p action
*/
static void
add_action_attributes(pcmk_action_t *action, xmlNode *action_xml)
{
xmlNode *args_xml = NULL;
/* We create free-standing XML to start, so we can sort the attributes
* before adding it to action_xml, which keeps the scheduler regression
* test graphs comparable.
*/
args_xml = create_xml_node(NULL, XML_TAG_ATTRS);
crm_xml_add(args_xml, PCMK_XA_CRM_FEATURE_SET, CRM_FEATURE_SET);
g_hash_table_foreach(action->extra, hash2field, args_xml);
if ((action->rsc != NULL) && (action->node != NULL)) {
// Get the resource instance attributes, evaluated properly for node
GHashTable *params = pe_rsc_params(action->rsc, action->node,
action->rsc->cluster);
pcmk__substitute_remote_addr(action->rsc, params);
g_hash_table_foreach(params, hash2smartfield, args_xml);
} else if ((action->rsc != NULL)
&& (action->rsc->variant <= pcmk_rsc_variant_primitive)) {
GHashTable *params = pe_rsc_params(action->rsc, NULL,
action->rsc->cluster);
g_hash_table_foreach(params, hash2smartfield, args_xml);
}
g_hash_table_foreach(action->meta, hash2metafield, args_xml);
if (action->rsc != NULL) {
pcmk_resource_t *parent = action->rsc;
while (parent != NULL) {
parent->cmds->add_graph_meta(parent, args_xml);
parent = parent->parent;
}
pcmk__add_guest_meta_to_xml(args_xml, action);
} else if (pcmk__str_eq(action->task, PCMK_ACTION_STONITH, pcmk__str_none)
&& (action->node != NULL)) {
/* Pass the node's attributes as meta-attributes.
*
* @TODO: Determine whether it is still necessary to do this. It was
* added in 33d99707, probably for the libfence-based implementation in
* c9a90bd, which is no longer used.
*/
g_hash_table_foreach(action->node->details->attrs, hash2metafield,
args_xml);
}
sorted_xml(args_xml, action_xml, FALSE);
free_xml(args_xml);
}
/*!
* \internal
* \brief Create the transition graph XML for a scheduled action
*
* \param[in,out] parent Parent XML element to add action to
* \param[in,out] action Scheduled action
* \param[in] skip_details If false, add action details as sub-elements
* \param[in] scheduler Scheduler data
*/
static void
create_graph_action(xmlNode *parent, pcmk_action_t *action, bool skip_details,
const pcmk_scheduler_t *scheduler)
{
bool needs_node_info = true;
bool needs_maintenance_info = false;
xmlNode *action_xml = NULL;
if ((action == NULL) || (scheduler == NULL)) {
return;
}
// Create the top-level element based on task
if (pcmk__str_eq(action->task, PCMK_ACTION_STONITH, pcmk__str_none)) {
/* All fences need node info; guest node fences are pseudo-events */
if (pcmk_is_set(action->flags, pcmk_action_pseudo)) {
action_xml = create_xml_node(parent, XML_GRAPH_TAG_PSEUDO_EVENT);
} else {
action_xml = create_xml_node(parent, XML_GRAPH_TAG_CRM_EVENT);
}
} else if (pcmk__str_any_of(action->task,
PCMK_ACTION_DO_SHUTDOWN,
PCMK_ACTION_CLEAR_FAILCOUNT, NULL)) {
action_xml = create_xml_node(parent, XML_GRAPH_TAG_CRM_EVENT);
} else if (pcmk__str_eq(action->task, PCMK_ACTION_LRM_DELETE,
pcmk__str_none)) {
// CIB-only clean-up for shutdown locks
action_xml = create_xml_node(parent, XML_GRAPH_TAG_CRM_EVENT);
crm_xml_add(action_xml, PCMK__XA_MODE, XML_TAG_CIB);
} else if (pcmk_is_set(action->flags, pcmk_action_pseudo)) {
if (pcmk__str_eq(action->task, PCMK_ACTION_MAINTENANCE_NODES,
pcmk__str_none)) {
needs_maintenance_info = true;
}
action_xml = create_xml_node(parent, XML_GRAPH_TAG_PSEUDO_EVENT);
needs_node_info = false;
} else {
action_xml = create_xml_node(parent, XML_GRAPH_TAG_RSC_OP);
}
crm_xml_add_int(action_xml, PCMK_XA_ID, action->id);
crm_xml_add(action_xml, XML_LRM_ATTR_TASK, action->task);
if ((action->rsc != NULL) && (action->rsc->clone_name != NULL)) {
char *clone_key = NULL;
guint interval_ms;
if (pcmk__guint_from_hash(action->meta, XML_LRM_ATTR_INTERVAL_MS, 0,
&interval_ms) != pcmk_rc_ok) {
interval_ms = 0;
}
clone_key = clone_op_key(action, interval_ms);
crm_xml_add(action_xml, XML_LRM_ATTR_TASK_KEY, clone_key);
crm_xml_add(action_xml, "internal_" XML_LRM_ATTR_TASK_KEY,
action->uuid);
free(clone_key);
} else {
crm_xml_add(action_xml, XML_LRM_ATTR_TASK_KEY, action->uuid);
}
if (needs_node_info && (action->node != NULL)) {
add_node_details(action, action_xml);
g_hash_table_insert(action->meta, strdup(XML_LRM_ATTR_TARGET),
strdup(action->node->details->uname));
g_hash_table_insert(action->meta, strdup(XML_LRM_ATTR_TARGET_UUID),
strdup(action->node->details->id));
}
if (skip_details) {
return;
}
if ((action->rsc != NULL)
&& !pcmk_is_set(action->flags, pcmk_action_pseudo)) {
// This is a real resource action, so add resource details
add_resource_details(action, action_xml);
}
/* List any attributes in effect */
add_action_attributes(action, action_xml);
/* List any nodes this action is expected to make down */
if (needs_node_info && (action->node != NULL)) {
add_downed_nodes(action_xml, action);
}
if (needs_maintenance_info) {
add_maintenance_nodes(action_xml, scheduler);
}
}
/*!
* \internal
* \brief Check whether an action should be added to the transition graph
*
* \param[in] action Action to check
*
* \return true if action should be added to graph, otherwise false
*/
static bool
should_add_action_to_graph(const pcmk_action_t *action)
{
if (!pcmk_is_set(action->flags, pcmk_action_runnable)) {
crm_trace("Ignoring action %s (%d): unrunnable",
action->uuid, action->id);
return false;
}
if (pcmk_is_set(action->flags, pcmk_action_optional)
&& !pcmk_is_set(action->flags, pcmk_action_always_in_graph)) {
crm_trace("Ignoring action %s (%d): optional",
action->uuid, action->id);
return false;
}
/* Actions for unmanaged resources should be excluded from the graph,
* with the exception of monitors and cancellation of recurring monitors.
*/
if ((action->rsc != NULL)
&& !pcmk_is_set(action->rsc->flags, pcmk_rsc_managed)
&& !pcmk__str_eq(action->task, PCMK_ACTION_MONITOR, pcmk__str_none)) {
const char *interval_ms_s;
/* A cancellation of a recurring monitor will get here because the task
* is cancel rather than monitor, but the interval can still be used to
* recognize it. The interval has been normalized to milliseconds by
* this point, so a string comparison is sufficient.
*/
interval_ms_s = g_hash_table_lookup(action->meta,
XML_LRM_ATTR_INTERVAL_MS);
if (pcmk__str_eq(interval_ms_s, "0", pcmk__str_null_matches)) {
crm_trace("Ignoring action %s (%d): for unmanaged resource (%s)",
action->uuid, action->id, action->rsc->id);
return false;
}
}
/* Always add pseudo-actions, fence actions, and shutdown actions (already
* determined to be required and runnable by this point)
*/
if (pcmk_is_set(action->flags, pcmk_action_pseudo)
|| pcmk__strcase_any_of(action->task, PCMK_ACTION_STONITH,
PCMK_ACTION_DO_SHUTDOWN, NULL)) {
return true;
}
if (action->node == NULL) {
pcmk__sched_err("Skipping action %s (%d) "
"because it was not assigned to a node (bug?)",
action->uuid, action->id);
pcmk__log_action("Unassigned", action, false);
return false;
}
if (pcmk_is_set(action->flags, pcmk_action_on_dc)) {
crm_trace("Action %s (%d) should be dumped: "
"can run on DC instead of %s",
action->uuid, action->id, pe__node_name(action->node));
} else if (pe__is_guest_node(action->node)
&& !action->node->details->remote_requires_reset) {
crm_trace("Action %s (%d) should be dumped: "
"assuming will be runnable on guest %s",
action->uuid, action->id, pe__node_name(action->node));
} else if (!action->node->details->online) {
pcmk__sched_err("Skipping action %s (%d) "
"because it was scheduled for offline node (bug?)",
action->uuid, action->id);
pcmk__log_action("Offline node", action, false);
return false;
} else if (action->node->details->unclean) {
pcmk__sched_err("Skipping action %s (%d) "
"because it was scheduled for unclean node (bug?)",
action->uuid, action->id);
pcmk__log_action("Unclean node", action, false);
return false;
}
return true;
}
/*!
* \internal
* \brief Check whether an ordering's flags can change an action
*
* \param[in] ordering Ordering to check
*
* \return true if ordering has flags that can change an action, false otherwise
*/
static bool
ordering_can_change_actions(const pcmk__related_action_t *ordering)
{
return pcmk_any_flags_set(ordering->type,
~(pcmk__ar_then_implies_first_graphed
|pcmk__ar_first_implies_then_graphed
|pcmk__ar_ordered));
}
/*!
* \internal
* \brief Check whether an action input should be in the transition graph
*
* \param[in] action Action to check
* \param[in,out] input Action input to check
*
* \return true if input should be in graph, false otherwise
* \note This function may not only check an input, but disable it under certian
* circumstances (load or anti-colocation orderings that are not needed).
*/
static bool
should_add_input_to_graph(const pcmk_action_t *action,
pcmk__related_action_t *input)
{
if (input->state == pe_link_dumped) {
return true;
}
if ((uint32_t) input->type == pcmk__ar_none) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"ordering disabled",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
} else if (!pcmk_is_set(input->action->flags, pcmk_action_runnable)
&& !ordering_can_change_actions(input)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"optional and input unrunnable",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
} else if (!pcmk_is_set(input->action->flags, pcmk_action_runnable)
&& pcmk_is_set(input->type, pcmk__ar_min_runnable)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"minimum number of instances required but input unrunnable",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
} else if (pcmk_is_set(input->type, pcmk__ar_unmigratable_then_blocks)
&& !pcmk_is_set(input->action->flags, pcmk_action_runnable)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"input blocked if 'then' unmigratable",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
} else if (pcmk_is_set(input->type, pcmk__ar_if_first_unmigratable)
&& pcmk_is_set(input->action->flags, pcmk_action_migratable)) {
crm_trace("Ignoring %s (%d) input %s (%d): ordering applies "
"only if input is unmigratable, but it is migratable",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
} else if (((uint32_t) input->type == pcmk__ar_ordered)
&& pcmk_is_set(input->action->flags, pcmk_action_migratable)
&& pcmk__ends_with(input->action->uuid, "_stop_0")) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"optional but stop in migration",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
} else if ((uint32_t) input->type == pcmk__ar_if_on_same_node_or_target) {
pcmk_node_t *input_node = input->action->node;
if ((action->rsc != NULL)
&& pcmk__str_eq(action->task, PCMK_ACTION_MIGRATE_TO,
pcmk__str_none)) {
pcmk_node_t *assigned = action->rsc->allocated_to;
/* For load_stopped -> migrate_to orderings, we care about where
* the resource has been assigned, not where migrate_to will be
* executed.
*/
if (!pe__same_node(input_node, assigned)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"migration target %s is not same as input node %s",
action->uuid, action->id,
input->action->uuid, input->action->id,
(assigned? assigned->details->uname : "<none>"),
(input_node? input_node->details->uname : "<none>"));
input->type = (enum pe_ordering) pcmk__ar_none;
return false;
}
} else if (!pe__same_node(input_node, action->node)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"not on same node (%s vs %s)",
action->uuid, action->id,
input->action->uuid, input->action->id,
(action->node? action->node->details->uname : "<none>"),
(input_node? input_node->details->uname : "<none>"));
input->type = (enum pe_ordering) pcmk__ar_none;
return false;
} else if (pcmk_is_set(input->action->flags, pcmk_action_optional)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"ordering optional",
action->uuid, action->id,
input->action->uuid, input->action->id);
input->type = (enum pe_ordering) pcmk__ar_none;
return false;
}
} else if ((uint32_t) input->type == pcmk__ar_if_required_on_same_node) {
if (input->action->node && action->node
&& !pe__same_node(input->action->node, action->node)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"not on same node (%s vs %s)",
action->uuid, action->id,
input->action->uuid, input->action->id,
pe__node_name(action->node),
pe__node_name(input->action->node));
input->type = (enum pe_ordering) pcmk__ar_none;
return false;
} else if (pcmk_is_set(input->action->flags, pcmk_action_optional)) {
crm_trace("Ignoring %s (%d) input %s (%d): optional",
action->uuid, action->id,
input->action->uuid, input->action->id);
input->type = (enum pe_ordering) pcmk__ar_none;
return false;
}
} else if (input->action->rsc
&& input->action->rsc != action->rsc
&& pcmk_is_set(input->action->rsc->flags, pcmk_rsc_failed)
&& !pcmk_is_set(input->action->rsc->flags, pcmk_rsc_managed)
&& pcmk__ends_with(input->action->uuid, "_stop_0")
&& action->rsc && pe_rsc_is_clone(action->rsc)) {
crm_warn("Ignoring requirement that %s complete before %s:"
" unmanaged failed resources cannot prevent clone shutdown",
input->action->uuid, action->uuid);
return false;
} else if (pcmk_is_set(input->action->flags, pcmk_action_optional)
&& !pcmk_any_flags_set(input->action->flags,
pcmk_action_always_in_graph
|pcmk_action_added_to_graph)
&& !should_add_action_to_graph(input->action)) {
crm_trace("Ignoring %s (%d) input %s (%d): "
"input optional",
action->uuid, action->id,
input->action->uuid, input->action->id);
return false;
}
crm_trace("%s (%d) input %s %s (%d) on %s should be dumped: %s %s %#.6x",
action->uuid, action->id, action_type_str(input->action->flags),
input->action->uuid, input->action->id,
action_node_str(input->action),
action_runnable_str(input->action->flags),
action_optional_str(input->action->flags), input->type);
return true;
}
/*!
* \internal
* \brief Check whether an ordering creates an ordering loop
*
* \param[in] init_action "First" action in ordering
* \param[in] action Callers should always set this the same as
* \p init_action (this function may use a different
* value for recursive calls)
* \param[in,out] input Action wrapper for "then" action in ordering
*
* \return true if the ordering creates a loop, otherwise false
*/
bool
pcmk__graph_has_loop(const pcmk_action_t *init_action,
const pcmk_action_t *action, pcmk__related_action_t *input)
{
bool has_loop = false;
if (pcmk_is_set(input->action->flags, pcmk_action_detect_loop)) {
crm_trace("Breaking tracking loop: %s@%s -> %s@%s (%#.6x)",
input->action->uuid,
input->action->node? input->action->node->details->uname : "",
action->uuid,
action->node? action->node->details->uname : "",
input->type);
return false;
}
// Don't need to check inputs that won't be used
if (!should_add_input_to_graph(action, input)) {
return false;
}
if (input->action == init_action) {
crm_debug("Input loop found in %s@%s ->...-> %s@%s",
action->uuid,
action->node? action->node->details->uname : "",
init_action->uuid,
init_action->node? init_action->node->details->uname : "");
return true;
}
pcmk__set_action_flags(input->action, pcmk_action_detect_loop);
crm_trace("Checking inputs of action %s@%s input %s@%s (%#.6x)"
"for graph loop with %s@%s ",
action->uuid,
action->node? action->node->details->uname : "",
input->action->uuid,
input->action->node? input->action->node->details->uname : "",
input->type,
init_action->uuid,
init_action->node? init_action->node->details->uname : "");
// Recursively check input itself for loops
for (GList *iter = input->action->actions_before;
iter != NULL; iter = iter->next) {
if (pcmk__graph_has_loop(init_action, input->action,
(pcmk__related_action_t *) iter->data)) {
// Recursive call already logged a debug message
has_loop = true;
break;
}
}
pcmk__clear_action_flags(input->action, pcmk_action_detect_loop);
if (!has_loop) {
crm_trace("No input loop found in %s@%s -> %s@%s (%#.6x)",
input->action->uuid,
input->action->node? input->action->node->details->uname : "",
action->uuid,
action->node? action->node->details->uname : "",
input->type);
}
return has_loop;
}
/*!
* \internal
* \brief Create a synapse XML element for a transition graph
*
* \param[in] action Action that synapse is for
* \param[in,out] scheduler Scheduler data containing graph
*
* \return Newly added XML element for new graph synapse
*/
static xmlNode *
create_graph_synapse(const pcmk_action_t *action, pcmk_scheduler_t *scheduler)
{
int synapse_priority = 0;
xmlNode *syn = create_xml_node(scheduler->graph, "synapse");
crm_xml_add_int(syn, PCMK_XA_ID, scheduler->num_synapse);
scheduler->num_synapse++;
if (action->rsc != NULL) {
synapse_priority = action->rsc->priority;
}
if (action->priority > synapse_priority) {
synapse_priority = action->priority;
}
if (synapse_priority > 0) {
crm_xml_add_int(syn, XML_CIB_ATTR_PRIORITY, synapse_priority);
}
return syn;
}
/*!
* \internal
* \brief Add an action to the transition graph XML if appropriate
*
* \param[in,out] data Action to possibly add
* \param[in,out] user_data Scheduler data
*
* \note This will de-duplicate the action inputs, meaning that the
* pcmk__related_action_t:type flags can no longer be relied on to retain
* their original settings. That means this MUST be called after
* pcmk__apply_orderings() is complete, and nothing after this should rely
* on those type flags. (For example, some code looks for type equal to
* some flag rather than whether the flag is set, and some code looks for
* particular combinations of flags -- such code must be done before
* pcmk__create_graph().)
*/
static void
add_action_to_graph(gpointer data, gpointer user_data)
{
pcmk_action_t *action = (pcmk_action_t *) data;
pcmk_scheduler_t *scheduler = (pcmk_scheduler_t *) user_data;
xmlNode *syn = NULL;
xmlNode *set = NULL;
xmlNode *in = NULL;
/* If we haven't already, de-duplicate inputs (even if we won't be adding
* the action to the graph, so that crm_simulate's dot graphs don't have
* duplicates).
*/
if (!pcmk_is_set(action->flags, pcmk_action_inputs_deduplicated)) {
pcmk__deduplicate_action_inputs(action);
pcmk__set_action_flags(action, pcmk_action_inputs_deduplicated);
}
if (pcmk_is_set(action->flags, pcmk_action_added_to_graph)
|| !should_add_action_to_graph(action)) {
return; // Already added, or shouldn't be
}
pcmk__set_action_flags(action, pcmk_action_added_to_graph);
crm_trace("Adding action %d (%s%s%s) to graph",
action->id, action->uuid,
((action->node == NULL)? "" : " on "),
((action->node == NULL)? "" : action->node->details->uname));
syn = create_graph_synapse(action, scheduler);
set = create_xml_node(syn, "action_set");
in = create_xml_node(syn, "inputs");
create_graph_action(set, action, false, scheduler);
for (GList *lpc = action->actions_before; lpc != NULL; lpc = lpc->next) {
pcmk__related_action_t *input = lpc->data;
if (should_add_input_to_graph(action, input)) {
xmlNode *input_xml = create_xml_node(in, "trigger");
input->state = pe_link_dumped;
create_graph_action(input_xml, input->action, true, scheduler);
}
}
}
static int transition_id = -1;
/*!
* \internal
* \brief Log a message after calculating a transition
*
* \param[in] filename Where transition input is stored
*/
void
pcmk__log_transition_summary(const char *filename)
{
if (was_processing_error || crm_config_error) {
crm_err("Calculated transition %d (with errors)%s%s",
transition_id,
(filename == NULL)? "" : ", saving inputs in ",
(filename == NULL)? "" : filename);
} else if (was_processing_warning || crm_config_warning) {
crm_warn("Calculated transition %d (with warnings)%s%s",
transition_id,
(filename == NULL)? "" : ", saving inputs in ",
(filename == NULL)? "" : filename);
} else {
crm_notice("Calculated transition %d%s%s",
transition_id,
(filename == NULL)? "" : ", saving inputs in ",
(filename == NULL)? "" : filename);
}
if (crm_config_error) {
crm_notice("Configuration errors found during scheduler processing,"
" please run \"crm_verify -L\" to identify issues");
}
}
/*!
* \internal
* \brief Add a resource's actions to the transition graph
*
* \param[in,out] rsc Resource whose actions should be added
*/
void
pcmk__add_rsc_actions_to_graph(pcmk_resource_t *rsc)
{
GList *iter = NULL;
CRM_ASSERT(rsc != NULL);
pcmk__rsc_trace(rsc, "Adding actions for %s to graph", rsc->id);
// First add the resource's own actions
g_list_foreach(rsc->actions, add_action_to_graph, rsc->cluster);
// Then recursively add its children's actions (appropriate to variant)
for (iter = rsc->children; iter != NULL; iter = iter->next) {
pcmk_resource_t *child_rsc = (pcmk_resource_t *) iter->data;
child_rsc->cmds->add_actions_to_graph(child_rsc);
}
}
/*!
* \internal
* \brief Create a transition graph with all cluster actions needed
*
* \param[in,out] scheduler Scheduler data
*/
void
pcmk__create_graph(pcmk_scheduler_t *scheduler)
{
GList *iter = NULL;
const char *value = NULL;
long long limit = 0LL;
transition_id++;
crm_trace("Creating transition graph %d", transition_id);
scheduler->graph = create_xml_node(NULL, XML_TAG_GRAPH);
value = pe_pref(scheduler->config_hash, PCMK_OPT_CLUSTER_DELAY);
crm_xml_add(scheduler->graph, PCMK_OPT_CLUSTER_DELAY, value);
value = pe_pref(scheduler->config_hash, PCMK_OPT_STONITH_TIMEOUT);
crm_xml_add(scheduler->graph, PCMK_OPT_STONITH_TIMEOUT, value);
crm_xml_add(scheduler->graph, "failed-stop-offset", "INFINITY");
if (pcmk_is_set(scheduler->flags, pcmk_sched_start_failure_fatal)) {
crm_xml_add(scheduler->graph, "failed-start-offset", "INFINITY");
} else {
crm_xml_add(scheduler->graph, "failed-start-offset", "1");
}
value = pe_pref(scheduler->config_hash, PCMK_OPT_BATCH_LIMIT);
crm_xml_add(scheduler->graph, PCMK_OPT_BATCH_LIMIT, value);
crm_xml_add_int(scheduler->graph, "transition_id", transition_id);
value = pe_pref(scheduler->config_hash, PCMK_OPT_MIGRATION_LIMIT);
if ((pcmk__scan_ll(value, &limit, 0LL) == pcmk_rc_ok) && (limit > 0)) {
crm_xml_add(scheduler->graph, PCMK_OPT_MIGRATION_LIMIT, value);
}
if (scheduler->recheck_by > 0) {
char *recheck_epoch = NULL;
recheck_epoch = crm_strdup_printf("%llu",
(long long) scheduler->recheck_by);
crm_xml_add(scheduler->graph, "recheck-by", recheck_epoch);
free(recheck_epoch);
}
/* The following code will de-duplicate action inputs, so nothing past this
* should rely on the action input type flags retaining their original
* values.
*/
// Add resource actions to graph
for (iter = scheduler->resources; iter != NULL; iter = iter->next) {
pcmk_resource_t *rsc = (pcmk_resource_t *) iter->data;
pcmk__rsc_trace(rsc, "Processing actions for %s", rsc->id);
rsc->cmds->add_actions_to_graph(rsc);
}
// Add pseudo-action for list of nodes with maintenance state update
add_maintenance_update(scheduler);
// Add non-resource (node) actions
for (iter = scheduler->actions; iter != NULL; iter = iter->next) {
pcmk_action_t *action = (pcmk_action_t *) iter->data;
if ((action->rsc != NULL)
&& (action->node != NULL)
&& action->node->details->shutdown
&& !pcmk_is_set(action->rsc->flags, pcmk_rsc_maintenance)
&& !pcmk_any_flags_set(action->flags,
pcmk_action_optional|pcmk_action_runnable)
&& pcmk__str_eq(action->task, PCMK_ACTION_STOP, pcmk__str_none)) {
/* Eventually we should just ignore the 'fence' case, but for now
* it's the best way to detect (in CTS) when CIB resource updates
* are being lost.
*/
if (pcmk_is_set(scheduler->flags, pcmk_sched_quorate)
|| (scheduler->no_quorum_policy == pcmk_no_quorum_ignore)) {
const bool managed = pcmk_is_set(action->rsc->flags,
pcmk_rsc_managed);
const bool failed = pcmk_is_set(action->rsc->flags,
pcmk_rsc_failed);
crm_crit("Cannot %s %s because of %s:%s%s (%s)",
action->node->details->unclean? "fence" : "shut down",
pe__node_name(action->node), action->rsc->id,
(managed? " blocked" : " unmanaged"),
(failed? " failed" : ""), action->uuid);
}
}
add_action_to_graph((gpointer) action, (gpointer) scheduler);
}
crm_log_xml_trace(scheduler->graph, "graph");
}
diff --git a/lib/pacemaker/pcmk_simulate.c b/lib/pacemaker/pcmk_simulate.c
index 75b9d3bd6c..a69ac3310a 100644
--- a/lib/pacemaker/pcmk_simulate.c
+++ b/lib/pacemaker/pcmk_simulate.c
@@ -1,1006 +1,1006 @@
/*
* Copyright 2021-2024 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 <crm/cib/internal.h>
#include <crm/common/output.h>
#include <crm/common/results.h>
#include <crm/common/scheduler.h>
#include <pacemaker-internal.h>
#include <pacemaker.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "libpacemaker_private.h"
static pcmk__output_t *out = NULL;
static cib_t *fake_cib = NULL;
static GList *fake_resource_list = NULL;
static const GList *fake_op_fail_list = NULL;
static void set_effective_date(pcmk_scheduler_t *scheduler, bool print_original,
const char *use_date);
/*!
* \internal
* \brief Create an action name for use in a dot graph
*
* \param[in] action Action to create name for
* \param[in] verbose If true, add action ID to name
*
* \return Newly allocated string with action name
* \note It is the caller's responsibility to free the result.
*/
static char *
create_action_name(const pcmk_action_t *action, bool verbose)
{
char *action_name = NULL;
const char *prefix = "";
const char *action_host = NULL;
const char *clone_name = NULL;
const char *task = action->task;
if (action->node != NULL) {
action_host = action->node->details->uname;
} else if (!pcmk_is_set(action->flags, pcmk_action_pseudo)) {
action_host = "<none>";
}
if (pcmk__str_eq(action->task, PCMK_ACTION_CANCEL, pcmk__str_none)) {
prefix = "Cancel ";
task = action->cancel_task;
}
if (action->rsc != NULL) {
clone_name = action->rsc->clone_name;
}
if (clone_name != NULL) {
char *key = NULL;
guint interval_ms = 0;
if (pcmk__guint_from_hash(action->meta,
XML_LRM_ATTR_INTERVAL_MS, 0,
&interval_ms) != pcmk_rc_ok) {
interval_ms = 0;
}
if (pcmk__strcase_any_of(action->task, PCMK_ACTION_NOTIFY,
PCMK_ACTION_NOTIFIED, NULL)) {
const char *n_type = g_hash_table_lookup(action->meta,
"notify_key_type");
const char *n_task = g_hash_table_lookup(action->meta,
"notify_key_operation");
CRM_ASSERT(n_type != NULL);
CRM_ASSERT(n_task != NULL);
key = pcmk__notify_key(clone_name, n_type, n_task);
} else {
key = pcmk__op_key(clone_name, task, interval_ms);
}
if (action_host != NULL) {
action_name = crm_strdup_printf("%s%s %s",
prefix, key, action_host);
} else {
action_name = crm_strdup_printf("%s%s", prefix, key);
}
free(key);
} else if (pcmk__str_eq(action->task, PCMK_ACTION_STONITH,
pcmk__str_none)) {
const char *op = g_hash_table_lookup(action->meta, "stonith_action");
action_name = crm_strdup_printf("%s%s '%s' %s",
prefix, action->task, op, action_host);
} else if (action->rsc && action_host) {
action_name = crm_strdup_printf("%s%s %s",
prefix, action->uuid, action_host);
} else if (action_host) {
action_name = crm_strdup_printf("%s%s %s",
prefix, action->task, action_host);
} else {
action_name = crm_strdup_printf("%s", action->uuid);
}
if (verbose) {
char *with_id = crm_strdup_printf("%s (%d)", action_name, action->id);
free(action_name);
action_name = with_id;
}
return action_name;
}
/*!
* \internal
* \brief Display the status of a cluster
*
* \param[in,out] scheduler Scheduler data
* \param[in] show_opts How to modify display (as pcmk_show_opt_e flags)
* \param[in] section_opts Sections to display (as pcmk_section_e flags)
* \param[in] title What to use as list title
* \param[in] print_spacer Whether to display a spacer first
*/
static void
print_cluster_status(pcmk_scheduler_t *scheduler, uint32_t show_opts,
uint32_t section_opts, const char *title,
bool print_spacer)
{
pcmk__output_t *out = scheduler->priv;
GList *all = NULL;
crm_exit_t stonith_rc = 0;
enum pcmk_pacemakerd_state state = pcmk_pacemakerd_state_invalid;
section_opts |= pcmk_section_nodes | pcmk_section_resources;
show_opts |= pcmk_show_inactive_rscs | pcmk_show_failed_detail;
all = g_list_prepend(all, (gpointer) "*");
PCMK__OUTPUT_SPACER_IF(out, print_spacer);
out->begin_list(out, NULL, NULL, "%s", title);
out->message(out, "cluster-status",
scheduler, state, stonith_rc, NULL,
false, section_opts, show_opts, NULL, all, all);
out->end_list(out);
g_list_free(all);
}
/*!
* \internal
* \brief Display a summary of all actions scheduled in a transition
*
* \param[in,out] scheduler Scheduler data (fully scheduled)
* \param[in] print_spacer Whether to display a spacer first
*/
static void
print_transition_summary(pcmk_scheduler_t *scheduler, bool print_spacer)
{
pcmk__output_t *out = scheduler->priv;
PCMK__OUTPUT_SPACER_IF(out, print_spacer);
out->begin_list(out, NULL, NULL, "Transition Summary");
pcmk__output_actions(scheduler);
out->end_list(out);
}
/*!
* \internal
* \brief Reset scheduler input, output, date, and flags
*
* \param[in,out] scheduler Scheduler data
* \param[in] input What to set as cluster input
* \param[in] out What to set as cluster output object
* \param[in] use_date What to set as cluster's current timestamp
* \param[in] flags Group of enum pcmk_scheduler_flags to set
*/
static void
reset(pcmk_scheduler_t *scheduler, xmlNodePtr input, pcmk__output_t *out,
const char *use_date, unsigned int flags)
{
scheduler->input = input;
scheduler->priv = out;
set_effective_date(scheduler, true, use_date);
if (pcmk_is_set(flags, pcmk_sim_sanitized)) {
pcmk__set_scheduler_flags(scheduler, pcmk_sched_sanitized);
}
if (pcmk_is_set(flags, pcmk_sim_show_scores)) {
pcmk__set_scheduler_flags(scheduler, pcmk_sched_output_scores);
}
if (pcmk_is_set(flags, pcmk_sim_show_utilization)) {
pcmk__set_scheduler_flags(scheduler, pcmk_sched_show_utilization);
}
}
/*!
* \brief Write out a file in dot(1) format describing the actions that will
* be taken by the scheduler in response to an input CIB file.
*
* \param[in,out] scheduler Scheduler data
* \param[in] dot_file The filename to write
* \param[in] all_actions Write all actions, even those that are optional
* or are on unmanaged resources
* \param[in] verbose Add extra information, such as action IDs, to the
* output
*
* \return Standard Pacemaker return code
*/
static int
write_sim_dotfile(pcmk_scheduler_t *scheduler, const char *dot_file,
bool all_actions, bool verbose)
{
GList *iter = NULL;
FILE *dot_strm = fopen(dot_file, "w");
if (dot_strm == NULL) {
return errno;
}
fprintf(dot_strm, " digraph \"g\" {\n");
for (iter = scheduler->actions; iter != NULL; iter = iter->next) {
pcmk_action_t *action = (pcmk_action_t *) iter->data;
const char *style = "dashed";
const char *font = "black";
const char *color = "black";
char *action_name = create_action_name(action, verbose);
if (pcmk_is_set(action->flags, pcmk_action_pseudo)) {
font = "orange";
}
if (pcmk_is_set(action->flags, pcmk_action_added_to_graph)) {
style = "bold";
color = "green";
} else if ((action->rsc != NULL)
&& !pcmk_is_set(action->rsc->flags, pcmk_rsc_managed)) {
color = "red";
font = "purple";
if (!all_actions) {
goto do_not_write;
}
} else if (pcmk_is_set(action->flags, pcmk_action_optional)) {
color = "blue";
if (!all_actions) {
goto do_not_write;
}
} else {
color = "red";
CRM_LOG_ASSERT(!pcmk_is_set(action->flags, pcmk_action_runnable));
}
pcmk__set_action_flags(action, pcmk_action_added_to_graph);
fprintf(dot_strm, "\"%s\" [ style=%s color=\"%s\" fontcolor=\"%s\"]\n",
action_name, style, color, font);
do_not_write:
free(action_name);
}
for (iter = scheduler->actions; iter != NULL; iter = iter->next) {
pcmk_action_t *action = (pcmk_action_t *) iter->data;
for (GList *before_iter = action->actions_before;
before_iter != NULL; before_iter = before_iter->next) {
pcmk__related_action_t *before = before_iter->data;
char *before_name = NULL;
char *after_name = NULL;
const char *style = "dashed";
bool optional = true;
if (before->state == pe_link_dumped) {
optional = false;
style = "bold";
} else if ((uint32_t) before->type == pcmk__ar_none) {
continue;
} else if (pcmk_is_set(before->action->flags,
pcmk_action_added_to_graph)
&& pcmk_is_set(action->flags, pcmk_action_added_to_graph)
&& (uint32_t) before->type != pcmk__ar_if_on_same_node_or_target) {
optional = false;
}
if (all_actions || !optional) {
before_name = create_action_name(before->action, verbose);
after_name = create_action_name(action, verbose);
fprintf(dot_strm, "\"%s\" -> \"%s\" [ style = %s]\n",
before_name, after_name, style);
free(before_name);
free(after_name);
}
}
}
fprintf(dot_strm, "}\n");
fflush(dot_strm);
fclose(dot_strm);
return pcmk_rc_ok;
}
/*!
* \brief Profile the configuration updates and scheduler actions in a single
* CIB file, printing the profiling timings.
*
* \note \p scheduler->priv must have been set to a valid \p pcmk__output_t
* object before this function is called.
*
* \param[in] xml_file The CIB file to profile
* \param[in] repeat Number of times to run
* \param[in,out] scheduler Scheduler data
* \param[in] use_date The date to set the cluster's time to (may be NULL)
*/
static void
profile_file(const char *xml_file, long long repeat,
pcmk_scheduler_t *scheduler, const char *use_date)
{
pcmk__output_t *out = scheduler->priv;
xmlNode *cib_object = NULL;
clock_t start = 0;
clock_t end;
unsigned long long scheduler_flags = pcmk_sched_no_compat;
CRM_ASSERT(out != NULL);
cib_object = filename2xml(xml_file);
start = clock();
if (pcmk_find_cib_element(cib_object, XML_CIB_TAG_STATUS) == NULL) {
create_xml_node(cib_object, XML_CIB_TAG_STATUS);
}
if (cli_config_update(&cib_object, NULL, FALSE) == FALSE) {
free_xml(cib_object);
return;
}
if (validate_xml(cib_object, NULL, FALSE) != TRUE) {
free_xml(cib_object);
return;
}
if (pcmk_is_set(scheduler->flags, pcmk_sched_output_scores)) {
scheduler_flags |= pcmk_sched_output_scores;
}
if (pcmk_is_set(scheduler->flags, pcmk_sched_show_utilization)) {
scheduler_flags |= pcmk_sched_show_utilization;
}
for (int i = 0; i < repeat; ++i) {
xmlNode *input = (repeat == 1)? cib_object : copy_xml(cib_object);
scheduler->input = input;
set_effective_date(scheduler, false, use_date);
pcmk__schedule_actions(input, scheduler_flags, scheduler);
pe_reset_working_set(scheduler);
}
end = clock();
out->message(out, "profile", xml_file, start, end);
}
void
pcmk__profile_dir(const char *dir, long long repeat,
pcmk_scheduler_t *scheduler, const char *use_date)
{
pcmk__output_t *out = scheduler->priv;
struct dirent **namelist;
int file_num = scandir(dir, &namelist, 0, alphasort);
CRM_ASSERT(out != NULL);
if (file_num > 0) {
struct stat prop;
char buffer[FILENAME_MAX];
out->begin_list(out, NULL, NULL, "Timings");
while (file_num--) {
if ('.' == namelist[file_num]->d_name[0]) {
free(namelist[file_num]);
continue;
} else if (!pcmk__ends_with_ext(namelist[file_num]->d_name,
".xml")) {
free(namelist[file_num]);
continue;
}
snprintf(buffer, sizeof(buffer), "%s/%s",
dir, namelist[file_num]->d_name);
if (stat(buffer, &prop) == 0 && S_ISREG(prop.st_mode)) {
profile_file(buffer, repeat, scheduler, use_date);
}
free(namelist[file_num]);
}
free(namelist);
out->end_list(out);
}
}
/*!
* \brief Set the date of the cluster, either to the value given by
* \p use_date, or to the "execution-date" value in the CIB.
*
* \note \p scheduler->priv must have been set to a valid \p pcmk__output_t
* object before this function is called.
*
* \param[in,out] scheduler Scheduler data
* \param[in] print_original If \p true, the "execution-date" should
* also be printed
* \param[in] use_date The date to set the cluster's time to
* (may be NULL)
*/
static void
set_effective_date(pcmk_scheduler_t *scheduler, bool print_original,
const char *use_date)
{
pcmk__output_t *out = scheduler->priv;
time_t original_date = 0;
CRM_ASSERT(out != NULL);
crm_element_value_epoch(scheduler->input, "execution-date", &original_date);
if (use_date) {
scheduler->now = crm_time_new(use_date);
out->info(out, "Setting effective cluster time: %s", use_date);
crm_time_log(LOG_NOTICE, "Pretending 'now' is", scheduler->now,
crm_time_log_date | crm_time_log_timeofday);
} else if (original_date != 0) {
scheduler->now = pcmk__copy_timet(original_date);
if (print_original) {
char *when = crm_time_as_string(scheduler->now,
crm_time_log_date|crm_time_log_timeofday);
out->info(out, "Using the original execution date of: %s", when);
free(when);
}
}
}
/*!
* \internal
* \brief Simulate successfully executing a pseudo-action in a graph
*
* \param[in,out] graph Graph to update with pseudo-action result
* \param[in,out] action Pseudo-action to simulate executing
*
* \return Standard Pacemaker return code
*/
static int
simulate_pseudo_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
const char *node = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
const char *task = crm_element_value(action->xml, XML_LRM_ATTR_TASK_KEY);
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
out->message(out, "inject-pseudo-action", node, task);
pcmk__update_graph(graph, action);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Simulate executing a resource action in a graph
*
* \param[in,out] graph Graph to update with resource action result
* \param[in,out] action Resource action to simulate executing
*
* \return Standard Pacemaker return code
*/
static int
simulate_resource_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
int rc;
lrmd_event_data_t *op = NULL;
int target_outcome = PCMK_OCF_OK;
const char *rtype = NULL;
const char *rclass = NULL;
const char *resource = NULL;
const char *rprovider = NULL;
const char *resource_config_name = NULL;
const char *operation = crm_element_value(action->xml, "operation");
const char *target_rc_s = crm_meta_value(action->params,
XML_ATTR_TE_TARGET_RC);
xmlNode *cib_node = NULL;
xmlNode *cib_resource = NULL;
xmlNode *action_rsc = first_named_child(action->xml, XML_CIB_TAG_RESOURCE);
char *node = crm_element_value_copy(action->xml, XML_LRM_ATTR_TARGET);
char *uuid = NULL;
const char *router_node = crm_element_value(action->xml,
XML_LRM_ATTR_ROUTER_NODE);
// Certain actions don't need to be displayed or history entries
if (pcmk__str_eq(operation, CRM_OP_REPROBE, pcmk__str_none)) {
crm_debug("No history injection for %s op on %s", operation, node);
goto done; // Confirm action and update graph
}
if (action_rsc == NULL) { // Shouldn't be possible
crm_log_xml_err(action->xml, "Bad");
free(node);
return EPROTO;
}
/* A resource might be known by different names in the configuration and in
* the action (for example, a clone instance). Grab the configuration name
* (which is preferred when writing history), and if necessary, the instance
* name.
*/
resource_config_name = crm_element_value(action_rsc, PCMK_XA_ID);
if (resource_config_name == NULL) { // Shouldn't be possible
crm_log_xml_err(action->xml, "No ID");
free(node);
return EPROTO;
}
resource = resource_config_name;
if (pe_find_resource(fake_resource_list, resource) == NULL) {
- const char *longname = crm_element_value(action_rsc, XML_ATTR_ID_LONG);
+ const char *longname = crm_element_value(action_rsc, PCMK__XA_LONG_ID);
if ((longname != NULL)
&& (pe_find_resource(fake_resource_list, longname) != NULL)) {
resource = longname;
}
}
// Certain actions need to be displayed but don't need history entries
if (pcmk__strcase_any_of(operation, PCMK_ACTION_DELETE,
PCMK_ACTION_META_DATA, NULL)) {
out->message(out, "inject-rsc-action", resource, operation, node,
(guint) 0);
goto done; // Confirm action and update graph
}
rclass = crm_element_value(action_rsc, XML_AGENT_ATTR_CLASS);
rtype = crm_element_value(action_rsc, XML_ATTR_TYPE);
rprovider = crm_element_value(action_rsc, XML_AGENT_ATTR_PROVIDER);
pcmk__scan_min_int(target_rc_s, &target_outcome, 0);
CRM_ASSERT(fake_cib->cmds->query(fake_cib, NULL, NULL,
cib_sync_call|cib_scope_local) == pcmk_ok);
// Ensure the action node is in the CIB
uuid = crm_element_value_copy(action->xml, XML_LRM_ATTR_TARGET_UUID);
cib_node = pcmk__inject_node(fake_cib, node,
((router_node == NULL)? uuid: node));
free(uuid);
CRM_ASSERT(cib_node != NULL);
// Add a history entry for the action
cib_resource = pcmk__inject_resource_history(out, cib_node, resource,
resource_config_name,
rclass, rtype, rprovider);
if (cib_resource == NULL) {
crm_err("Could not simulate action %d history for resource %s",
action->id, resource);
free(node);
free_xml(cib_node);
return EINVAL;
}
// Simulate and display an executor event for the action result
op = pcmk__event_from_graph_action(cib_resource, action, PCMK_EXEC_DONE,
target_outcome, "User-injected result");
out->message(out, "inject-rsc-action", resource, op->op_type, node,
op->interval_ms);
// Check whether action is in a list of desired simulated failures
for (const GList *iter = fake_op_fail_list;
iter != NULL; iter = iter->next) {
const char *spec = (const char *) iter->data;
char *key = NULL;
const char *match_name = NULL;
// Allow user to specify anonymous clone with or without instance number
key = crm_strdup_printf(PCMK__OP_FMT "@%s=", resource, op->op_type,
op->interval_ms, node);
if (strncasecmp(key, spec, strlen(key)) == 0) {
match_name = resource;
}
free(key);
// If not found, try the resource's name in the configuration
if ((match_name == NULL)
&& (strcmp(resource, resource_config_name) != 0)) {
key = crm_strdup_printf(PCMK__OP_FMT "@%s=", resource_config_name,
op->op_type, op->interval_ms, node);
if (strncasecmp(key, spec, strlen(key)) == 0) {
match_name = resource_config_name;
}
free(key);
}
if (match_name == NULL) {
continue; // This failed action entry doesn't match
}
// ${match_name}_${task}_${interval_in_ms}@${node}=${rc}
rc = sscanf(spec, "%*[^=]=%d", (int *) &op->rc);
if (rc != 1) {
out->err(out, "Invalid failed operation '%s' "
"(result code must be integer)", spec);
continue; // Keep checking other list entries
}
out->info(out, "Pretending action %d failed with rc=%d",
action->id, op->rc);
pcmk__set_graph_action_flags(action, pcmk__graph_action_failed);
graph->abort_priority = INFINITY;
pcmk__inject_failcount(out, cib_node, match_name, op->op_type,
op->interval_ms, op->rc);
break;
}
pcmk__inject_action_result(cib_resource, op, target_outcome);
lrmd_free_event(op);
rc = fake_cib->cmds->modify(fake_cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call|cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
done:
free(node);
free_xml(cib_node);
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
pcmk__update_graph(graph, action);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Simulate successfully executing a cluster action
*
* \param[in,out] graph Graph to update with action result
* \param[in,out] action Cluster action to simulate
*
* \return Standard Pacemaker return code
*/
static int
simulate_cluster_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
const char *node = crm_element_value(action->xml, XML_LRM_ATTR_TARGET);
const char *task = crm_element_value(action->xml, XML_LRM_ATTR_TASK);
xmlNode *rsc = first_named_child(action->xml, XML_CIB_TAG_RESOURCE);
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
out->message(out, "inject-cluster-action", node, task, rsc);
pcmk__update_graph(graph, action);
return pcmk_rc_ok;
}
/*!
* \internal
* \brief Simulate successfully executing a fencing action
*
* \param[in,out] graph Graph to update with action result
* \param[in,out] action Fencing action to simulate
*
* \return Standard Pacemaker return code
*/
static int
simulate_fencing_action(pcmk__graph_t *graph, pcmk__graph_action_t *action)
{
const char *op = crm_meta_value(action->params, "stonith_action");
char *target = crm_element_value_copy(action->xml, XML_LRM_ATTR_TARGET);
out->message(out, "inject-fencing-action", target, op);
if (!pcmk__str_eq(op, PCMK_ACTION_ON, pcmk__str_casei)) {
int rc = pcmk_ok;
GString *xpath = g_string_sized_new(512);
// Set node state to offline
xmlNode *cib_node = pcmk__inject_node_state_change(fake_cib, target,
false);
CRM_ASSERT(cib_node != NULL);
crm_xml_add(cib_node, PCMK_XA_CRM_DEBUG_ORIGIN, __func__);
rc = fake_cib->cmds->replace(fake_cib, XML_CIB_TAG_STATUS, cib_node,
cib_sync_call|cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
// Simulate controller clearing node's resource history and attributes
pcmk__g_strcat(xpath,
"//" XML_CIB_TAG_STATE
"[@" XML_ATTR_UNAME "='", target, "']/" XML_CIB_TAG_LRM,
NULL);
fake_cib->cmds->remove(fake_cib, (const char *) xpath->str, NULL,
cib_xpath|cib_sync_call|cib_scope_local);
g_string_truncate(xpath, 0);
pcmk__g_strcat(xpath,
"//" XML_CIB_TAG_STATE
"[@" XML_ATTR_UNAME "='", target, "']"
"/" XML_TAG_TRANSIENT_NODEATTRS, NULL);
fake_cib->cmds->remove(fake_cib, (const char *) xpath->str, NULL,
cib_xpath|cib_sync_call|cib_scope_local);
free_xml(cib_node);
g_string_free(xpath, TRUE);
}
pcmk__set_graph_action_flags(action, pcmk__graph_action_confirmed);
pcmk__update_graph(graph, action);
free(target);
return pcmk_rc_ok;
}
enum pcmk__graph_status
pcmk__simulate_transition(pcmk_scheduler_t *scheduler, cib_t *cib,
const GList *op_fail_list)
{
pcmk__graph_t *transition = NULL;
enum pcmk__graph_status graph_rc;
pcmk__graph_functions_t simulation_fns = {
simulate_pseudo_action,
simulate_resource_action,
simulate_cluster_action,
simulate_fencing_action,
};
out = scheduler->priv;
fake_cib = cib;
fake_op_fail_list = op_fail_list;
if (!out->is_quiet(out)) {
out->begin_list(out, NULL, NULL, "Executing Cluster Transition");
}
pcmk__set_graph_functions(&simulation_fns);
transition = pcmk__unpack_graph(scheduler->graph, crm_system_name);
pcmk__log_graph(LOG_DEBUG, transition);
fake_resource_list = scheduler->resources;
do {
graph_rc = pcmk__execute_graph(transition);
} while (graph_rc == pcmk__graph_active);
fake_resource_list = NULL;
if (graph_rc != pcmk__graph_complete) {
out->err(out, "Transition failed: %s",
pcmk__graph_status2text(graph_rc));
pcmk__log_graph(LOG_ERR, transition);
out->err(out, "An invalid transition was produced");
}
pcmk__free_graph(transition);
if (!out->is_quiet(out)) {
// If not quiet, we'll need the resulting CIB for later display
xmlNode *cib_object = NULL;
int rc = fake_cib->cmds->query(fake_cib, NULL, &cib_object,
cib_sync_call|cib_scope_local);
CRM_ASSERT(rc == pcmk_ok);
pe_reset_working_set(scheduler);
scheduler->input = cib_object;
out->end_list(out);
}
return graph_rc;
}
int
pcmk__simulate(pcmk_scheduler_t *scheduler, pcmk__output_t *out,
const pcmk_injections_t *injections, unsigned int flags,
uint32_t section_opts, const char *use_date,
const char *input_file, const char *graph_file,
const char *dot_file)
{
int printed = pcmk_rc_no_output;
int rc = pcmk_rc_ok;
xmlNodePtr input = NULL;
cib_t *cib = NULL;
rc = cib__signon_query(out, &cib, &input);
if (rc != pcmk_rc_ok) {
goto simulate_done;
}
reset(scheduler, input, out, use_date, flags);
cluster_status(scheduler);
if ((cib->variant == cib_native)
&& pcmk_is_set(section_opts, pcmk_section_times)) {
if (pcmk__our_nodename == NULL) {
// Currently used only in the times section
pcmk__query_node_name(out, 0, &pcmk__our_nodename, 0);
}
scheduler->localhost = pcmk__our_nodename;
}
if (!out->is_quiet(out)) {
const bool show_pending = pcmk_is_set(flags, pcmk_sim_show_pending);
if (pcmk_is_set(scheduler->flags, pcmk_sched_in_maintenance)) {
printed = out->message(out, "maint-mode", scheduler->flags);
}
if (scheduler->disabled_resources || scheduler->blocked_resources) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
printed = out->info(out,
"%d of %d resource instances DISABLED and "
"%d BLOCKED from further action due to failure",
scheduler->disabled_resources,
scheduler->ninstances,
scheduler->blocked_resources);
}
/* Most formatted output headers use caps for each word, but this one
* only has the first word capitalized for compatibility with pcs.
*/
print_cluster_status(scheduler, (show_pending? pcmk_show_pending : 0),
section_opts, "Current cluster status",
(printed == pcmk_rc_ok));
printed = pcmk_rc_ok;
}
// If the user requested any injections, handle them
if ((injections->node_down != NULL)
|| (injections->node_fail != NULL)
|| (injections->node_up != NULL)
|| (injections->op_inject != NULL)
|| (injections->ticket_activate != NULL)
|| (injections->ticket_grant != NULL)
|| (injections->ticket_revoke != NULL)
|| (injections->ticket_standby != NULL)
|| (injections->watchdog != NULL)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
pcmk__inject_scheduler_input(scheduler, cib, injections);
printed = pcmk_rc_ok;
rc = cib->cmds->query(cib, NULL, &input, cib_sync_call);
if (rc != pcmk_rc_ok) {
rc = pcmk_legacy2rc(rc);
goto simulate_done;
}
cleanup_calculations(scheduler);
reset(scheduler, input, out, use_date, flags);
cluster_status(scheduler);
}
if (input_file != NULL) {
rc = write_xml_file(input, input_file, FALSE);
if (rc < 0) {
rc = pcmk_legacy2rc(rc);
goto simulate_done;
}
}
if (pcmk_any_flags_set(flags, pcmk_sim_process | pcmk_sim_simulate)) {
pcmk__output_t *logger_out = NULL;
unsigned long long scheduler_flags = pcmk_sched_no_compat;
if (pcmk_is_set(scheduler->flags, pcmk_sched_output_scores)) {
scheduler_flags |= pcmk_sched_output_scores;
}
if (pcmk_is_set(scheduler->flags, pcmk_sched_show_utilization)) {
scheduler_flags |= pcmk_sched_show_utilization;
}
if (pcmk_all_flags_set(scheduler->flags,
pcmk_sched_output_scores
|pcmk_sched_show_utilization)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
out->begin_list(out, NULL, NULL,
"Assignment Scores and Utilization Information");
printed = pcmk_rc_ok;
} else if (pcmk_is_set(scheduler->flags, pcmk_sched_output_scores)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
out->begin_list(out, NULL, NULL, "Assignment Scores");
printed = pcmk_rc_ok;
} else if (pcmk_is_set(scheduler->flags, pcmk_sched_show_utilization)) {
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
out->begin_list(out, NULL, NULL, "Utilization Information");
printed = pcmk_rc_ok;
} else {
rc = pcmk__log_output_new(&logger_out);
if (rc != pcmk_rc_ok) {
goto simulate_done;
}
pe__register_messages(logger_out);
pcmk__register_lib_messages(logger_out);
scheduler->priv = logger_out;
}
pcmk__schedule_actions(input, scheduler_flags, scheduler);
if (logger_out == NULL) {
out->end_list(out);
} else {
logger_out->finish(logger_out, CRM_EX_OK, true, NULL);
pcmk__output_free(logger_out);
scheduler->priv = out;
}
input = NULL; /* Don't try and free it twice */
if (graph_file != NULL) {
rc = write_xml_file(scheduler->graph, graph_file, FALSE);
if (rc < 0) {
rc = pcmk_rc_graph_error;
goto simulate_done;
}
}
if (dot_file != NULL) {
rc = write_sim_dotfile(scheduler, dot_file,
pcmk_is_set(flags, pcmk_sim_all_actions),
pcmk_is_set(flags, pcmk_sim_verbose));
if (rc != pcmk_rc_ok) {
rc = pcmk_rc_dot_error;
goto simulate_done;
}
}
if (!out->is_quiet(out)) {
print_transition_summary(scheduler, printed == pcmk_rc_ok);
}
}
rc = pcmk_rc_ok;
if (!pcmk_is_set(flags, pcmk_sim_simulate)) {
goto simulate_done;
}
PCMK__OUTPUT_SPACER_IF(out, printed == pcmk_rc_ok);
if (pcmk__simulate_transition(scheduler, cib, injections->op_fail)
!= pcmk__graph_complete) {
rc = pcmk_rc_invalid_transition;
}
if (out->is_quiet(out)) {
goto simulate_done;
}
set_effective_date(scheduler, true, use_date);
if (pcmk_is_set(flags, pcmk_sim_show_scores)) {
pcmk__set_scheduler_flags(scheduler, pcmk_sched_output_scores);
}
if (pcmk_is_set(flags, pcmk_sim_show_utilization)) {
pcmk__set_scheduler_flags(scheduler, pcmk_sched_show_utilization);
}
cluster_status(scheduler);
print_cluster_status(scheduler, 0, section_opts, "Revised Cluster Status",
true);
simulate_done:
cib__clean_up_connection(&cib);
return rc;
}
int
pcmk_simulate(xmlNodePtr *xml, pcmk_scheduler_t *scheduler,
const pcmk_injections_t *injections, unsigned int flags,
unsigned int section_opts, const char *use_date,
const char *input_file, const char *graph_file,
const char *dot_file)
{
pcmk__output_t *out = NULL;
int rc = pcmk_rc_ok;
rc = pcmk__xml_output_new(&out, xml);
if (rc != pcmk_rc_ok) {
return rc;
}
pe__register_messages(out);
pcmk__register_lib_messages(out);
rc = pcmk__simulate(scheduler, out, injections, flags, section_opts,
use_date, input_file, graph_file, dot_file);
pcmk__xml_output_finish(out, pcmk_rc2exitc(rc), xml);
return rc;
}

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