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diff --git a/include/crm/common/util.h b/include/crm/common/util.h
index 2728b64492..fbea6e560c 100644
--- a/include/crm/common/util.h
+++ b/include/crm/common/util.h
@@ -1,146 +1,149 @@
/*
* Copyright 2004-2021 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_COMMON_UTIL__H
# define CRM_COMMON_UTIL__H
#ifdef __cplusplus
extern "C" {
#endif
/**
* \file
* \brief Utility functions
* \ingroup core
*/
# include <sys/types.h> // gid_t, mode_t, size_t, time_t, uid_t
# include <stdlib.h>
# include <stdbool.h>
# include <stdint.h> // uint32_t
# include <limits.h>
# include <signal.h>
# include <glib.h>
# include <libxml/tree.h>
# include <crm/lrmd.h>
# include <crm/common/acl.h>
# include <crm/common/agents.h>
# include <crm/common/results.h>
# define ONLINESTATUS "online" // Status of an online client
# define OFFLINESTATUS "offline" // Status of an offline client
/* public node attribute functions (from attrd_client.c) */
char *pcmk_promotion_score_name(const char *rsc_id);
/* public Pacemaker Remote functions (from remote.c) */
int crm_default_remote_port(void);
/* public string functions (from strings.c) */
gboolean crm_is_true(const char *s);
int crm_str_to_boolean(const char *s, int *ret);
long long crm_get_msec(const char *input);
char * crm_strip_trailing_newline(char *str);
char *crm_strdup_printf(char const *format, ...) G_GNUC_PRINTF(1, 2);
guint crm_parse_interval_spec(const char *input);
int char2score(const char *score);
char *score2char(int score);
char *score2char_stack(int score, char *buf, size_t len);
/* public operation functions (from operations.c) */
gboolean parse_op_key(const char *key, char **rsc_id, char **op_type,
guint *interval_ms);
gboolean decode_transition_key(const char *key, char **uuid, int *transition_id,
int *action_id, int *target_rc);
gboolean decode_transition_magic(const char *magic, char **uuid,
int *transition_id, int *action_id,
int *op_status, int *op_rc, int *target_rc);
int rsc_op_expected_rc(lrmd_event_data_t *event);
gboolean did_rsc_op_fail(lrmd_event_data_t *event, int target_rc);
bool crm_op_needs_metadata(const char *rsc_class, const char *op);
xmlNode *crm_create_op_xml(xmlNode *parent, const char *prefix,
const char *task, const char *interval_spec,
const char *timeout);
#define CRM_DEFAULT_OP_TIMEOUT_S "20s"
+bool pcmk_is_probe(const char *task, guint interval);
+bool pcmk_xe_is_probe(xmlNode *xml_op);
+
int compare_version(const char *version1, const char *version2);
/* coverity[+kill] */
void crm_abort(const char *file, const char *function, int line,
const char *condition, gboolean do_core, gboolean do_fork);
/*!
* \brief Check whether any of specified flags are set in a flag group
*
* \param[in] flag_group The flag group being examined
* \param[in] flags_to_check Which flags in flag_group should be checked
*
* \return true if \p flags_to_check is nonzero and any of its flags are set in
* \p flag_group, or false otherwise
*/
static inline bool
pcmk_any_flags_set(uint64_t flag_group, uint64_t flags_to_check)
{
return (flag_group & flags_to_check) != 0;
}
/*!
* \brief Check whether all of specified flags are set in a flag group
*
* \param[in] flag_group The flag group being examined
* \param[in] flags_to_check Which flags in flag_group should be checked
*
* \return true if \p flags_to_check is zero or all of its flags are set in
* \p flag_group, or false otherwise
*/
static inline bool
pcmk_all_flags_set(uint64_t flag_group, uint64_t flags_to_check)
{
return (flag_group & flags_to_check) == flags_to_check;
}
/*!
* \brief Convenience alias for pcmk_all_flags_set(), to check single flag
*/
#define pcmk_is_set(g, f) pcmk_all_flags_set((g), (f))
char *crm_meta_name(const char *field);
const char *crm_meta_value(GHashTable * hash, const char *field);
char *crm_md5sum(const char *buffer);
char *crm_generate_uuid(void);
// This belongs in ipc.h but is here for backward compatibility
bool crm_is_daemon_name(const char *name);
int crm_user_lookup(const char *name, uid_t * uid, gid_t * gid);
int pcmk_daemon_user(uid_t *uid, gid_t *gid);
#ifdef HAVE_GNUTLS_GNUTLS_H
void crm_gnutls_global_init(void);
#endif
char *pcmk_hostname(void);
bool pcmk_str_is_infinity(const char *s);
bool pcmk_str_is_minus_infinity(const char *s);
#if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1)
#include <crm/common/util_compat.h>
#endif
#ifdef __cplusplus
}
#endif
#endif
diff --git a/lib/common/operations.c b/lib/common/operations.c
index 366c189702..978df79082 100644
--- a/lib/common/operations.c
+++ b/lib/common/operations.c
@@ -1,539 +1,560 @@
/*
* Copyright 2004-2021 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>
#ifndef _GNU_SOURCE
# define _GNU_SOURCE
#endif
#include <regex.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include <ctype.h>
#include <crm/crm.h>
#include <crm/lrmd.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/common/util.h>
static regex_t *notify_migrate_re = NULL;
/*!
* \brief Generate an operation key (RESOURCE_ACTION_INTERVAL)
*
* \param[in] rsc_id ID of resource being operated on
* \param[in] op_type Operation name
* \param[in] interval_ms Operation interval
*
* \return Newly allocated memory containing operation key as string
*
* \note This function asserts on errors, so it will never return NULL.
* The caller is responsible for freeing the result with free().
*/
char *
pcmk__op_key(const char *rsc_id, const char *op_type, guint interval_ms)
{
CRM_ASSERT(rsc_id != NULL);
CRM_ASSERT(op_type != NULL);
return crm_strdup_printf(PCMK__OP_FMT, rsc_id, op_type, interval_ms);
}
static inline gboolean
convert_interval(const char *s, guint *interval_ms)
{
unsigned long l;
errno = 0;
l = strtoul(s, NULL, 10);
if (errno != 0) {
return FALSE;
}
*interval_ms = (guint) l;
return TRUE;
}
static gboolean
try_fast_match(const char *key, const char *underbar1, const char *underbar2,
char **rsc_id, char **op_type, guint *interval_ms)
{
if (interval_ms) {
if (!convert_interval(underbar2+1, interval_ms)) {
return FALSE;
}
}
if (rsc_id) {
*rsc_id = strndup(key, underbar1-key);
}
if (op_type) {
*op_type = strndup(underbar1+1, underbar2-underbar1-1);
}
return TRUE;
}
static gboolean
try_basic_match(const char *key, char **rsc_id, char **op_type, guint *interval_ms)
{
char *interval_sep = NULL;
char *type_sep = NULL;
// Parse interval at end of string
interval_sep = strrchr(key, '_');
if (interval_sep == NULL) {
return FALSE;
}
if (interval_ms) {
if (!convert_interval(interval_sep+1, interval_ms)) {
return FALSE;
}
}
type_sep = interval_sep-1;
while (1) {
if (*type_sep == '_') {
break;
} else if (type_sep == key) {
if (interval_ms) {
*interval_ms = 0;
}
return FALSE;
}
type_sep--;
}
if (op_type) {
// Add one here to skip the leading underscore we landed on in the
// while loop.
*op_type = strndup(type_sep+1, interval_sep-type_sep-1);
}
// Everything else is the name of the resource.
if (rsc_id) {
*rsc_id = strndup(key, type_sep-key);
}
return TRUE;
}
static gboolean
try_migrate_notify_match(const char *key, char **rsc_id, char **op_type, guint *interval_ms)
{
int rc = 0;
size_t nmatch = 8;
regmatch_t pmatch[nmatch];
if (notify_migrate_re == NULL) {
// cppcheck-suppress memleak
notify_migrate_re = calloc(1, sizeof(regex_t));
rc = regcomp(notify_migrate_re, "^(.*)_(migrate_(from|to)|(pre|post)_notify_([a-z]+|migrate_(from|to)))_([0-9]+)$",
REG_EXTENDED);
CRM_ASSERT(rc == 0);
}
rc = regexec(notify_migrate_re, key, nmatch, pmatch, 0);
if (rc == REG_NOMATCH) {
return FALSE;
}
if (rsc_id) {
*rsc_id = strndup(key+pmatch[1].rm_so, pmatch[1].rm_eo-pmatch[1].rm_so);
}
if (op_type) {
*op_type = strndup(key+pmatch[2].rm_so, pmatch[2].rm_eo-pmatch[2].rm_so);
}
if (interval_ms) {
if (!convert_interval(key+pmatch[7].rm_so, interval_ms)) {
if (rsc_id) {
free(*rsc_id);
*rsc_id = NULL;
}
if (op_type) {
free(*op_type);
*op_type = NULL;
}
return FALSE;
}
}
return TRUE;
}
gboolean
parse_op_key(const char *key, char **rsc_id, char **op_type, guint *interval_ms)
{
char *underbar1 = NULL;
char *underbar2 = NULL;
char *underbar3 = NULL;
// Initialize output variables in case of early return
if (rsc_id) {
*rsc_id = NULL;
}
if (op_type) {
*op_type = NULL;
}
if (interval_ms) {
*interval_ms = 0;
}
CRM_CHECK(key && *key, return FALSE);
underbar1 = strchr(key, '_');
if (!underbar1) {
return FALSE;
}
underbar2 = strchr(underbar1+1, '_');
if (!underbar2) {
return FALSE;
}
underbar3 = strchr(underbar2+1, '_');
if (!underbar3) {
return try_fast_match(key, underbar1, underbar2,
rsc_id, op_type, interval_ms);
} else if (try_migrate_notify_match(key, rsc_id, op_type, interval_ms)) {
return TRUE;
} else {
return try_basic_match(key, rsc_id, op_type, interval_ms);
}
}
char *
pcmk__notify_key(const char *rsc_id, const char *notify_type,
const char *op_type)
{
CRM_CHECK(rsc_id != NULL, return NULL);
CRM_CHECK(op_type != NULL, return NULL);
CRM_CHECK(notify_type != NULL, return NULL);
return crm_strdup_printf("%s_%s_notify_%s_0",
rsc_id, notify_type, op_type);
}
/*!
* \brief Parse a transition magic string into its constituent parts
*
* \param[in] magic Magic string to parse (must be non-NULL)
* \param[out] uuid If non-NULL, where to store copy of parsed UUID
* \param[out] transition_id If non-NULL, where to store parsed transition ID
* \param[out] action_id If non-NULL, where to store parsed action ID
* \param[out] op_status If non-NULL, where to store parsed result status
* \param[out] op_rc If non-NULL, where to store parsed actual rc
* \param[out] target_rc If non-NULL, where to stored parsed target rc
*
* \return TRUE if key was valid, FALSE otherwise
* \note If uuid is supplied and this returns TRUE, the caller is responsible
* for freeing the memory for *uuid using free().
*/
gboolean
decode_transition_magic(const char *magic, char **uuid, int *transition_id, int *action_id,
int *op_status, int *op_rc, int *target_rc)
{
int res = 0;
char *key = NULL;
gboolean result = TRUE;
int local_op_status = -1;
int local_op_rc = -1;
CRM_CHECK(magic != NULL, return FALSE);
#ifdef SSCANF_HAS_M
res = sscanf(magic, "%d:%d;%ms", &local_op_status, &local_op_rc, &key);
#else
key = calloc(1, strlen(magic) - 3); // magic must have >=4 other characters
CRM_ASSERT(key);
res = sscanf(magic, "%d:%d;%s", &local_op_status, &local_op_rc, key);
#endif
if (res == EOF) {
crm_err("Could not decode transition information '%s': %s",
magic, pcmk_strerror(errno));
result = FALSE;
} else if (res < 3) {
crm_warn("Transition information '%s' incomplete (%d of 3 expected items)",
magic, res);
result = FALSE;
} else {
if (op_status) {
*op_status = local_op_status;
}
if (op_rc) {
*op_rc = local_op_rc;
}
result = decode_transition_key(key, uuid, transition_id, action_id,
target_rc);
}
free(key);
return result;
}
char *
pcmk__transition_key(int transition_id, int action_id, int target_rc,
const char *node)
{
CRM_CHECK(node != NULL, return NULL);
return crm_strdup_printf("%d:%d:%d:%-*s",
action_id, transition_id, target_rc, 36, node);
}
/*!
* \brief Parse a transition key into its constituent parts
*
* \param[in] key Transition key to parse (must be non-NULL)
* \param[out] uuid If non-NULL, where to store copy of parsed UUID
* \param[out] transition_id If non-NULL, where to store parsed transition ID
* \param[out] action_id If non-NULL, where to store parsed action ID
* \param[out] target_rc If non-NULL, where to stored parsed target rc
*
* \return TRUE if key was valid, FALSE otherwise
* \note If uuid is supplied and this returns TRUE, the caller is responsible
* for freeing the memory for *uuid using free().
*/
gboolean
decode_transition_key(const char *key, char **uuid, int *transition_id, int *action_id,
int *target_rc)
{
int local_transition_id = -1;
int local_action_id = -1;
int local_target_rc = -1;
char local_uuid[37] = { '\0' };
// Initialize any supplied output arguments
if (uuid) {
*uuid = NULL;
}
if (transition_id) {
*transition_id = -1;
}
if (action_id) {
*action_id = -1;
}
if (target_rc) {
*target_rc = -1;
}
CRM_CHECK(key != NULL, return FALSE);
if (sscanf(key, "%d:%d:%d:%36s", &local_action_id, &local_transition_id,
&local_target_rc, local_uuid) != 4) {
crm_err("Invalid transition key '%s'", key);
return FALSE;
}
if (strlen(local_uuid) != 36) {
crm_warn("Invalid UUID '%s' in transition key '%s'", local_uuid, key);
}
if (uuid) {
*uuid = strdup(local_uuid);
CRM_ASSERT(*uuid);
}
if (transition_id) {
*transition_id = local_transition_id;
}
if (action_id) {
*action_id = local_action_id;
}
if (target_rc) {
*target_rc = local_target_rc;
}
return TRUE;
}
// Return true if a is an attribute that should be filtered
static bool
should_filter_for_digest(xmlAttrPtr a, void *user_data)
{
if (strncmp((const char *) a->name, CRM_META "_",
sizeof(CRM_META " ") - 1) == 0) {
return true;
}
return pcmk__str_any_of((const char *) a->name,
XML_ATTR_ID,
XML_ATTR_CRM_VERSION,
XML_LRM_ATTR_OP_DIGEST,
XML_LRM_ATTR_TARGET,
XML_LRM_ATTR_TARGET_UUID,
"pcmk_external_ip",
NULL);
}
/*!
* \internal
* \brief Remove XML attributes not needed for operation digest
*
* \param[in,out] param_set XML with operation parameters
*/
void
pcmk__filter_op_for_digest(xmlNode *param_set)
{
char *key = NULL;
char *timeout = NULL;
guint interval_ms = 0;
if (param_set == NULL) {
return;
}
/* Timeout is useful for recurring operation digests, so grab it before
* removing meta-attributes
*/
key = crm_meta_name(XML_LRM_ATTR_INTERVAL_MS);
if (crm_element_value_ms(param_set, key, &interval_ms) != pcmk_ok) {
interval_ms = 0;
}
free(key);
key = NULL;
if (interval_ms != 0) {
key = crm_meta_name(XML_ATTR_TIMEOUT);
timeout = crm_element_value_copy(param_set, key);
}
// Remove all CRM_meta_* attributes and certain other attributes
pcmk__xe_remove_matching_attrs(param_set, should_filter_for_digest, NULL);
// Add timeout back for recurring operation digests
if (timeout != NULL) {
crm_xml_add(param_set, key, timeout);
}
free(timeout);
free(key);
}
int
rsc_op_expected_rc(lrmd_event_data_t * op)
{
int rc = 0;
if (op && op->user_data) {
decode_transition_key(op->user_data, NULL, NULL, NULL, &rc);
}
return rc;
}
gboolean
did_rsc_op_fail(lrmd_event_data_t * op, int target_rc)
{
switch (op->op_status) {
case PCMK_EXEC_CANCELLED:
case PCMK_EXEC_PENDING:
return FALSE;
case PCMK_EXEC_NOT_SUPPORTED:
case PCMK_EXEC_TIMEOUT:
case PCMK_EXEC_ERROR:
case PCMK_EXEC_NOT_CONNECTED:
case PCMK_EXEC_NO_FENCE_DEVICE:
case PCMK_EXEC_NO_SECRETS:
case PCMK_EXEC_INVALID:
return TRUE;
default:
if (target_rc != op->rc) {
return TRUE;
}
}
return FALSE;
}
/*!
* \brief Create a CIB XML element for an operation
*
* \param[in] parent If not NULL, make new XML node a child of this one
* \param[in] prefix Generate an ID using this prefix
* \param[in] task Operation task to set
* \param[in] interval_spec Operation interval to set
* \param[in] timeout If not NULL, operation timeout to set
*
* \return New XML object on success, NULL otherwise
*/
xmlNode *
crm_create_op_xml(xmlNode *parent, const char *prefix, const char *task,
const char *interval_spec, const char *timeout)
{
xmlNode *xml_op;
CRM_CHECK(prefix && task && interval_spec, return NULL);
xml_op = create_xml_node(parent, XML_ATTR_OP);
crm_xml_set_id(xml_op, "%s-%s-%s", prefix, task, interval_spec);
crm_xml_add(xml_op, XML_LRM_ATTR_INTERVAL, interval_spec);
crm_xml_add(xml_op, "name", task);
if (timeout) {
crm_xml_add(xml_op, XML_ATTR_TIMEOUT, timeout);
}
return xml_op;
}
/*!
* \brief Check whether an operation requires resource agent meta-data
*
* \param[in] rsc_class Resource agent class (or NULL to skip class check)
* \param[in] op Operation action (or NULL to skip op check)
*
* \return TRUE if operation needs meta-data, FALSE otherwise
* \note At least one of rsc_class and op must be specified.
*/
bool
crm_op_needs_metadata(const char *rsc_class, const char *op)
{
/* Agent meta-data is used to determine whether an agent reload is possible,
* and to evaluate versioned parameters -- so if this op is not relevant to
* those features, we don't need the meta-data.
*/
CRM_CHECK((rsc_class != NULL) || (op != NULL), return false);
if ((rsc_class != NULL)
&& !pcmk_is_set(pcmk_get_ra_caps(rsc_class), pcmk_ra_cap_params)) {
/* Meta-data is only needed for resource classes that use parameters */
return false;
}
if (op == NULL) {
return true;
}
/* Meta-data is only needed for these actions */
return pcmk__str_any_of(op, CRMD_ACTION_START, CRMD_ACTION_STATUS,
CRMD_ACTION_PROMOTE, CRMD_ACTION_DEMOTE,
CRMD_ACTION_RELOAD, CRMD_ACTION_RELOAD_AGENT,
CRMD_ACTION_MIGRATE, CRMD_ACTION_MIGRATED,
CRMD_ACTION_NOTIFY, NULL);
}
/*!
* \internal
* \brief Check whether an action name is for a fencing action
*
* \param[in] action Action name to check
*
* \return true if \p action is "off", "reboot", or "poweroff", otherwise false
*/
bool
pcmk__is_fencing_action(const char *action)
{
return pcmk__str_any_of(action, "off", "reboot", "poweroff", NULL);
}
+
+bool
+pcmk_is_probe(const char *task, guint interval)
+{
+ if (task == NULL) {
+ return false;
+ }
+
+ return (interval == 0) && pcmk__str_eq(task, CRMD_ACTION_STATUS, pcmk__str_none);
+}
+
+bool
+pcmk_xe_is_probe(xmlNode *xml_op)
+{
+ const char *task = crm_element_value(xml_op, XML_LRM_ATTR_TASK);
+ const char *interval_ms_s = crm_element_value(xml_op, XML_LRM_ATTR_INTERVAL_MS);
+ int interval_ms;
+
+ pcmk__scan_min_int(interval_ms_s, &interval_ms, 0);
+ return pcmk_is_probe(task, interval_ms);
+}
diff --git a/lib/common/tests/operations/Makefile.am b/lib/common/tests/operations/Makefile.am
index c8814ff0a8..2e3d0b0679 100644
--- a/lib/common/tests/operations/Makefile.am
+++ b/lib/common/tests/operations/Makefile.am
@@ -1,17 +1,19 @@
#
-# Copyright 2020 the Pacemaker project contributors
+# Copyright 2020-2021 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.
#
AM_CPPFLAGS = -I$(top_srcdir)/include -I$(top_builddir)/include
LDADD = $(top_builddir)/lib/common/libcrmcommon.la -lcmocka
include $(top_srcdir)/mk/tap.mk
# Add "_test" to the end of all test program names to simplify .gitignore.
-check_PROGRAMS = parse_op_key_test
+check_PROGRAMS = parse_op_key_test \
+ pcmk_is_probe_test \
+ pcmk_xe_is_probe_test
TESTS = $(check_PROGRAMS)
diff --git a/lib/common/tests/operations/pcmk_is_probe_test.c b/lib/common/tests/operations/pcmk_is_probe_test.c
new file mode 100644
index 0000000000..9b449f1a70
--- /dev/null
+++ b/lib/common/tests/operations/pcmk_is_probe_test.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2021 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 <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+static void
+is_probe_test(void **state)
+{
+ assert_false(pcmk_is_probe(NULL, 0));
+ assert_false(pcmk_is_probe("", 0));
+ assert_false(pcmk_is_probe("blahblah", 0));
+ assert_false(pcmk_is_probe("monitor", 1));
+ assert_true(pcmk_is_probe("monitor", 0));
+}
+
+int main(int argc, char **argv)
+{
+ const struct CMUnitTest tests[] = {
+ cmocka_unit_test(is_probe_test),
+ };
+
+ cmocka_set_message_output(CM_OUTPUT_TAP);
+ return cmocka_run_group_tests(tests, NULL, NULL);
+}
diff --git a/lib/common/tests/operations/pcmk_xe_is_probe_test.c b/lib/common/tests/operations/pcmk_xe_is_probe_test.c
new file mode 100644
index 0000000000..0283d1c145
--- /dev/null
+++ b/lib/common/tests/operations/pcmk_xe_is_probe_test.c
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2021 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 <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+static void
+op_is_probe_test(void **state)
+{
+ xmlNode *node = NULL;
+
+ assert_false(pcmk_xe_is_probe(NULL));
+
+ node = string2xml("<lrm_rsc_op/>");
+ assert_false(pcmk_xe_is_probe(node));
+ free_xml(node);
+
+ node = string2xml("<lrm_rsc_op operation_key=\"blah\" interval=\"30s\"/>");
+ assert_false(pcmk_xe_is_probe(node));
+ free_xml(node);
+
+ node = string2xml("<lrm_rsc_op operation=\"monitor\" interval=\"30s\"/>");
+ assert_false(pcmk_xe_is_probe(node));
+ free_xml(node);
+
+ node = string2xml("<lrm_rsc_op operation=\"start\" interval=\"0\"/>");
+ assert_false(pcmk_xe_is_probe(node));
+ free_xml(node);
+
+ node = string2xml("<lrm_rsc_op operation=\"monitor\" interval=\"0\"/>");
+ assert_true(pcmk_xe_is_probe(node));
+ free_xml(node);
+}
+
+int main(int argc, char **argv)
+{
+ const struct CMUnitTest tests[] = {
+ cmocka_unit_test(op_is_probe_test),
+ };
+
+ cmocka_set_message_output(CM_OUTPUT_TAP);
+ return cmocka_run_group_tests(tests, NULL, NULL);
+}
diff --git a/lib/pengine/unpack.c b/lib/pengine/unpack.c
index ecc7275e15..7c0c66e696 100644
--- a/lib/pengine/unpack.c
+++ b/lib/pengine/unpack.c
@@ -1,4115 +1,4111 @@
/*
* Copyright 2004-2021 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU Lesser General Public License
* version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include <time.h>
#include <crm/crm.h>
#include <crm/services.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/common/util.h>
#include <crm/pengine/rules.h>
#include <crm/pengine/internal.h>
#include <pe_status_private.h>
CRM_TRACE_INIT_DATA(pe_status);
/* This uses pcmk__set_flags_as()/pcmk__clear_flags_as() directly rather than
* use pe__set_working_set_flags()/pe__clear_working_set_flags() so that the
* flag is stringified more readably in log messages.
*/
#define set_config_flag(data_set, option, flag) do { \
const char *scf_value = pe_pref((data_set)->config_hash, (option)); \
if (scf_value != NULL) { \
if (crm_is_true(scf_value)) { \
(data_set)->flags = pcmk__set_flags_as(__func__, __LINE__, \
LOG_TRACE, "Working set", \
crm_system_name, (data_set)->flags, \
(flag), #flag); \
} else { \
(data_set)->flags = pcmk__clear_flags_as(__func__, __LINE__,\
LOG_TRACE, "Working set", \
crm_system_name, (data_set)->flags, \
(flag), #flag); \
} \
} \
} while(0)
static void unpack_rsc_op(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
xmlNode **last_failure,
enum action_fail_response *failed,
pe_working_set_t *data_set);
static void determine_remote_online_status(pe_working_set_t *data_set,
pe_node_t *this_node);
static void add_node_attrs(xmlNode *attrs, pe_node_t *node, bool overwrite,
pe_working_set_t *data_set);
static void determine_online_status(xmlNode *node_state, pe_node_t *this_node,
pe_working_set_t *data_set);
static void unpack_node_lrm(pe_node_t *node, xmlNode *xml,
pe_working_set_t *data_set);
// Bitmask for warnings we only want to print once
uint32_t pe_wo = 0;
static gboolean
is_dangling_guest_node(pe_node_t *node)
{
/* we are looking for a remote-node that was supposed to be mapped to a
* container resource, but all traces of that container have disappeared
* from both the config and the status section. */
if (pe__is_guest_or_remote_node(node) &&
node->details->remote_rsc &&
node->details->remote_rsc->container == NULL &&
pcmk_is_set(node->details->remote_rsc->flags,
pe_rsc_orphan_container_filler)) {
return TRUE;
}
return FALSE;
}
-
/*!
* \brief Schedule a fence action for a node
*
* \param[in,out] data_set Current working set of cluster
* \param[in,out] node Node to fence
* \param[in] reason Text description of why fencing is needed
* \param[in] priority_delay Whether to consider `priority-fencing-delay`
*/
void
pe_fence_node(pe_working_set_t * data_set, pe_node_t * node,
const char *reason, bool priority_delay)
{
CRM_CHECK(node, return);
/* A guest node is fenced by marking its container as failed */
if (pe__is_guest_node(node)) {
pe_resource_t *rsc = node->details->remote_rsc->container;
if (!pcmk_is_set(rsc->flags, pe_rsc_failed)) {
if (!pcmk_is_set(rsc->flags, pe_rsc_managed)) {
crm_notice("Not fencing guest node %s "
"(otherwise would because %s): "
"its guest resource %s is unmanaged",
node->details->uname, reason, rsc->id);
} else {
crm_warn("Guest node %s will be fenced "
"(by recovering its guest resource %s): %s",
node->details->uname, rsc->id, reason);
/* We don't mark the node as unclean because that would prevent the
* node from running resources. We want to allow it to run resources
* in this transition if the recovery succeeds.
*/
node->details->remote_requires_reset = TRUE;
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
}
}
} else if (is_dangling_guest_node(node)) {
crm_info("Cleaning up dangling connection for guest node %s: "
"fencing was already done because %s, "
"and guest resource no longer exists",
node->details->uname, reason);
pe__set_resource_flags(node->details->remote_rsc,
pe_rsc_failed|pe_rsc_stop);
} else if (pe__is_remote_node(node)) {
pe_resource_t *rsc = node->details->remote_rsc;
if ((rsc != NULL) && !pcmk_is_set(rsc->flags, pe_rsc_managed)) {
crm_notice("Not fencing remote node %s "
"(otherwise would because %s): connection is unmanaged",
node->details->uname, reason);
} else if(node->details->remote_requires_reset == FALSE) {
node->details->remote_requires_reset = TRUE;
crm_warn("Remote node %s %s: %s",
node->details->uname,
pe_can_fence(data_set, node)? "will be fenced" : "is unclean",
reason);
}
node->details->unclean = TRUE;
// No need to apply `priority-fencing-delay` for remote nodes
pe_fence_op(node, NULL, TRUE, reason, FALSE, data_set);
} else if (node->details->unclean) {
crm_trace("Cluster node %s %s because %s",
node->details->uname,
pe_can_fence(data_set, node)? "would also be fenced" : "also is unclean",
reason);
} else {
crm_warn("Cluster node %s %s: %s",
node->details->uname,
pe_can_fence(data_set, node)? "will be fenced" : "is unclean",
reason);
node->details->unclean = TRUE;
pe_fence_op(node, NULL, TRUE, reason, priority_delay, data_set);
}
}
// @TODO xpaths can't handle templates, rules, or id-refs
// nvpair with provides or requires set to unfencing
#define XPATH_UNFENCING_NVPAIR XML_CIB_TAG_NVPAIR \
"[(@" XML_NVPAIR_ATTR_NAME "='" PCMK_STONITH_PROVIDES "'" \
"or @" XML_NVPAIR_ATTR_NAME "='" XML_RSC_ATTR_REQUIRES "') " \
"and @" XML_NVPAIR_ATTR_VALUE "='unfencing']"
// unfencing in rsc_defaults or any resource
#define XPATH_ENABLE_UNFENCING \
"/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_RESOURCES \
"//" XML_TAG_META_SETS "/" XPATH_UNFENCING_NVPAIR \
"|/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_RSCCONFIG \
"/" XML_TAG_META_SETS "/" XPATH_UNFENCING_NVPAIR
static void
set_if_xpath(uint64_t flag, const char *xpath, pe_working_set_t *data_set)
{
xmlXPathObjectPtr result = NULL;
if (!pcmk_is_set(data_set->flags, flag)) {
result = xpath_search(data_set->input, xpath);
if (result && (numXpathResults(result) > 0)) {
pe__set_working_set_flags(data_set, flag);
}
freeXpathObject(result);
}
}
gboolean
unpack_config(xmlNode * config, pe_working_set_t * data_set)
{
const char *value = NULL;
GHashTable *config_hash = pcmk__strkey_table(free, free);
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = RSC_ROLE_UNKNOWN,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
data_set->config_hash = config_hash;
pe__unpack_dataset_nvpairs(config, XML_CIB_TAG_PROPSET, &rule_data, config_hash,
CIB_OPTIONS_FIRST, FALSE, data_set);
verify_pe_options(data_set->config_hash);
set_config_flag(data_set, "enable-startup-probes", pe_flag_startup_probes);
if (!pcmk_is_set(data_set->flags, pe_flag_startup_probes)) {
crm_info("Startup probes: disabled (dangerous)");
}
value = pe_pref(data_set->config_hash, XML_ATTR_HAVE_WATCHDOG);
if (value && crm_is_true(value)) {
crm_info("Watchdog-based self-fencing will be performed via SBD if "
"fencing is required and stonith-watchdog-timeout is nonzero");
pe__set_working_set_flags(data_set, pe_flag_have_stonith_resource);
}
/* Set certain flags via xpath here, so they can be used before the relevant
* configuration sections are unpacked.
*/
set_if_xpath(pe_flag_enable_unfencing, XPATH_ENABLE_UNFENCING, data_set);
value = pe_pref(data_set->config_hash, "stonith-timeout");
data_set->stonith_timeout = (int) crm_parse_interval_spec(value);
crm_debug("STONITH timeout: %d", data_set->stonith_timeout);
set_config_flag(data_set, "stonith-enabled", pe_flag_stonith_enabled);
crm_debug("STONITH of failed nodes is %s",
pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)? "enabled" : "disabled");
data_set->stonith_action = pe_pref(data_set->config_hash, "stonith-action");
if (!strcmp(data_set->stonith_action, "poweroff")) {
pe_warn_once(pe_wo_poweroff,
"Support for stonith-action of 'poweroff' is deprecated "
"and will be removed in a future release (use 'off' instead)");
data_set->stonith_action = "off";
}
crm_trace("STONITH will %s nodes", data_set->stonith_action);
set_config_flag(data_set, "concurrent-fencing", pe_flag_concurrent_fencing);
crm_debug("Concurrent fencing is %s",
pcmk_is_set(data_set->flags, pe_flag_concurrent_fencing)? "enabled" : "disabled");
value = pe_pref(data_set->config_hash,
XML_CONFIG_ATTR_PRIORITY_FENCING_DELAY);
if (value) {
data_set->priority_fencing_delay = crm_parse_interval_spec(value) / 1000;
crm_trace("Priority fencing delay is %ds", data_set->priority_fencing_delay);
}
set_config_flag(data_set, "stop-all-resources", pe_flag_stop_everything);
crm_debug("Stop all active resources: %s",
pcmk__btoa(pcmk_is_set(data_set->flags, pe_flag_stop_everything)));
set_config_flag(data_set, "symmetric-cluster", pe_flag_symmetric_cluster);
if (pcmk_is_set(data_set->flags, pe_flag_symmetric_cluster)) {
crm_debug("Cluster is symmetric" " - resources can run anywhere by default");
}
value = pe_pref(data_set->config_hash, "no-quorum-policy");
if (pcmk__str_eq(value, "ignore", pcmk__str_casei)) {
data_set->no_quorum_policy = no_quorum_ignore;
} else if (pcmk__str_eq(value, "freeze", pcmk__str_casei)) {
data_set->no_quorum_policy = no_quorum_freeze;
} else if (pcmk__str_eq(value, "demote", pcmk__str_casei)) {
data_set->no_quorum_policy = no_quorum_demote;
} else if (pcmk__str_eq(value, "suicide", pcmk__str_casei)) {
if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
int do_panic = 0;
crm_element_value_int(data_set->input, XML_ATTR_QUORUM_PANIC,
&do_panic);
if (do_panic || pcmk_is_set(data_set->flags, pe_flag_have_quorum)) {
data_set->no_quorum_policy = no_quorum_suicide;
} else {
crm_notice("Resetting no-quorum-policy to 'stop': cluster has never had quorum");
data_set->no_quorum_policy = no_quorum_stop;
}
} else {
pcmk__config_err("Resetting no-quorum-policy to 'stop' because "
"fencing is disabled");
data_set->no_quorum_policy = no_quorum_stop;
}
} else {
data_set->no_quorum_policy = no_quorum_stop;
}
switch (data_set->no_quorum_policy) {
case no_quorum_freeze:
crm_debug("On loss of quorum: Freeze resources");
break;
case no_quorum_stop:
crm_debug("On loss of quorum: Stop ALL resources");
break;
case no_quorum_demote:
crm_debug("On loss of quorum: "
"Demote promotable resources and stop other resources");
break;
case no_quorum_suicide:
crm_notice("On loss of quorum: Fence all remaining nodes");
break;
case no_quorum_ignore:
crm_notice("On loss of quorum: Ignore");
break;
}
set_config_flag(data_set, "stop-orphan-resources", pe_flag_stop_rsc_orphans);
crm_trace("Orphan resources are %s",
pcmk_is_set(data_set->flags, pe_flag_stop_rsc_orphans)? "stopped" : "ignored");
set_config_flag(data_set, "stop-orphan-actions", pe_flag_stop_action_orphans);
crm_trace("Orphan resource actions are %s",
pcmk_is_set(data_set->flags, pe_flag_stop_action_orphans)? "stopped" : "ignored");
value = pe_pref(data_set->config_hash, "remove-after-stop");
if (value != NULL) {
if (crm_is_true(value)) {
pe__set_working_set_flags(data_set, pe_flag_remove_after_stop);
#ifndef PCMK__COMPAT_2_0
pe_warn_once(pe_wo_remove_after,
"Support for the remove-after-stop cluster property is"
" deprecated and will be removed in a future release");
#endif
} else {
pe__clear_working_set_flags(data_set, pe_flag_remove_after_stop);
}
}
set_config_flag(data_set, "maintenance-mode", pe_flag_maintenance_mode);
crm_trace("Maintenance mode: %s",
pcmk__btoa(pcmk_is_set(data_set->flags, pe_flag_maintenance_mode)));
set_config_flag(data_set, "start-failure-is-fatal", pe_flag_start_failure_fatal);
crm_trace("Start failures are %s",
pcmk_is_set(data_set->flags, pe_flag_start_failure_fatal)? "always fatal" : "handled by failcount");
if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
set_config_flag(data_set, "startup-fencing", pe_flag_startup_fencing);
}
if (pcmk_is_set(data_set->flags, pe_flag_startup_fencing)) {
crm_trace("Unseen nodes will be fenced");
} else {
pe_warn_once(pe_wo_blind, "Blind faith: not fencing unseen nodes");
}
pcmk__score_red = char2score(pe_pref(data_set->config_hash, "node-health-red"));
pcmk__score_green = char2score(pe_pref(data_set->config_hash, "node-health-green"));
pcmk__score_yellow = char2score(pe_pref(data_set->config_hash, "node-health-yellow"));
crm_debug("Node scores: 'red' = %s, 'yellow' = %s, 'green' = %s",
pe_pref(data_set->config_hash, "node-health-red"),
pe_pref(data_set->config_hash, "node-health-yellow"),
pe_pref(data_set->config_hash, "node-health-green"));
data_set->placement_strategy = pe_pref(data_set->config_hash, "placement-strategy");
crm_trace("Placement strategy: %s", data_set->placement_strategy);
set_config_flag(data_set, "shutdown-lock", pe_flag_shutdown_lock);
crm_trace("Resources will%s be locked to cleanly shut down nodes",
(pcmk_is_set(data_set->flags, pe_flag_shutdown_lock)? "" : " not"));
if (pcmk_is_set(data_set->flags, pe_flag_shutdown_lock)) {
value = pe_pref(data_set->config_hash,
XML_CONFIG_ATTR_SHUTDOWN_LOCK_LIMIT);
data_set->shutdown_lock = crm_parse_interval_spec(value) / 1000;
crm_trace("Shutdown locks expire after %us", data_set->shutdown_lock);
}
return TRUE;
}
pe_node_t *
pe_create_node(const char *id, const char *uname, const char *type,
const char *score, pe_working_set_t * data_set)
{
pe_node_t *new_node = NULL;
if (pe_find_node(data_set->nodes, uname) != NULL) {
pcmk__config_warn("More than one node entry has name '%s'", uname);
}
new_node = calloc(1, sizeof(pe_node_t));
if (new_node == NULL) {
return NULL;
}
new_node->weight = char2score(score);
new_node->fixed = FALSE;
new_node->details = calloc(1, sizeof(struct pe_node_shared_s));
if (new_node->details == NULL) {
free(new_node);
return NULL;
}
crm_trace("Creating node for entry %s/%s", uname, id);
new_node->details->id = id;
new_node->details->uname = uname;
new_node->details->online = FALSE;
new_node->details->shutdown = FALSE;
new_node->details->rsc_discovery_enabled = TRUE;
new_node->details->running_rsc = NULL;
new_node->details->type = node_ping;
if (pcmk__str_eq(type, "remote", pcmk__str_casei)) {
new_node->details->type = node_remote;
pe__set_working_set_flags(data_set, pe_flag_have_remote_nodes);
} else if (pcmk__str_eq(type, "member", pcmk__str_null_matches | pcmk__str_casei)) {
new_node->details->type = node_member;
}
new_node->details->attrs = pcmk__strkey_table(free, free);
if (pe__is_guest_or_remote_node(new_node)) {
g_hash_table_insert(new_node->details->attrs, strdup(CRM_ATTR_KIND),
strdup("remote"));
} else {
g_hash_table_insert(new_node->details->attrs, strdup(CRM_ATTR_KIND),
strdup("cluster"));
}
new_node->details->utilization = pcmk__strkey_table(free, free);
new_node->details->digest_cache = pcmk__strkey_table(free,
pe__free_digests);
data_set->nodes = g_list_insert_sorted(data_set->nodes, new_node, sort_node_uname);
return new_node;
}
static const char *
expand_remote_rsc_meta(xmlNode *xml_obj, xmlNode *parent, pe_working_set_t *data)
{
xmlNode *attr_set = NULL;
xmlNode *attr = NULL;
const char *container_id = ID(xml_obj);
const char *remote_name = NULL;
const char *remote_server = NULL;
const char *remote_port = NULL;
const char *connect_timeout = "60s";
const char *remote_allow_migrate=NULL;
const char *is_managed = NULL;
for (attr_set = pcmk__xe_first_child(xml_obj); attr_set != NULL;
attr_set = pcmk__xe_next(attr_set)) {
if (!pcmk__str_eq((const char *)attr_set->name, XML_TAG_META_SETS,
pcmk__str_casei)) {
continue;
}
for (attr = pcmk__xe_first_child(attr_set); attr != NULL;
attr = pcmk__xe_next(attr)) {
const char *value = crm_element_value(attr, XML_NVPAIR_ATTR_VALUE);
const char *name = crm_element_value(attr, XML_NVPAIR_ATTR_NAME);
if (pcmk__str_eq(name, XML_RSC_ATTR_REMOTE_NODE, pcmk__str_casei)) {
remote_name = value;
} else if (pcmk__str_eq(name, "remote-addr", pcmk__str_casei)) {
remote_server = value;
} else if (pcmk__str_eq(name, "remote-port", pcmk__str_casei)) {
remote_port = value;
} else if (pcmk__str_eq(name, "remote-connect-timeout", pcmk__str_casei)) {
connect_timeout = value;
} else if (pcmk__str_eq(name, "remote-allow-migrate", pcmk__str_casei)) {
remote_allow_migrate=value;
} else if (pcmk__str_eq(name, XML_RSC_ATTR_MANAGED, pcmk__str_casei)) {
is_managed = value;
}
}
}
if (remote_name == NULL) {
return NULL;
}
if (pe_find_resource(data->resources, remote_name) != NULL) {
return NULL;
}
pe_create_remote_xml(parent, remote_name, container_id,
remote_allow_migrate, is_managed,
connect_timeout, remote_server, remote_port);
return remote_name;
}
static void
handle_startup_fencing(pe_working_set_t *data_set, pe_node_t *new_node)
{
if ((new_node->details->type == node_remote) && (new_node->details->remote_rsc == NULL)) {
/* Ignore fencing for remote nodes that don't have a connection resource
* associated with them. This happens when remote node entries get left
* in the nodes section after the connection resource is removed.
*/
return;
}
if (pcmk_is_set(data_set->flags, pe_flag_startup_fencing)) {
// All nodes are unclean until we've seen their status entry
new_node->details->unclean = TRUE;
} else {
// Blind faith ...
new_node->details->unclean = FALSE;
}
/* We need to be able to determine if a node's status section
* exists or not separate from whether the node is unclean. */
new_node->details->unseen = TRUE;
}
gboolean
unpack_nodes(xmlNode * xml_nodes, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
pe_node_t *new_node = NULL;
const char *id = NULL;
const char *uname = NULL;
const char *type = NULL;
const char *score = NULL;
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = RSC_ROLE_UNKNOWN,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
for (xml_obj = pcmk__xe_first_child(xml_nodes); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_NODE, pcmk__str_none)) {
new_node = NULL;
id = crm_element_value(xml_obj, XML_ATTR_ID);
uname = crm_element_value(xml_obj, XML_ATTR_UNAME);
type = crm_element_value(xml_obj, XML_ATTR_TYPE);
score = crm_element_value(xml_obj, XML_RULE_ATTR_SCORE);
crm_trace("Processing node %s/%s", uname, id);
if (id == NULL) {
pcmk__config_err("Ignoring <" XML_CIB_TAG_NODE
"> entry in configuration without id");
continue;
}
new_node = pe_create_node(id, uname, type, score, data_set);
if (new_node == NULL) {
return FALSE;
}
/* if(data_set->have_quorum == FALSE */
/* && data_set->no_quorum_policy == no_quorum_stop) { */
/* /\* start shutting resources down *\/ */
/* new_node->weight = -INFINITY; */
/* } */
handle_startup_fencing(data_set, new_node);
add_node_attrs(xml_obj, new_node, FALSE, data_set);
pe__unpack_dataset_nvpairs(xml_obj, XML_TAG_UTILIZATION, &rule_data,
new_node->details->utilization, NULL,
FALSE, data_set);
crm_trace("Done with node %s", crm_element_value(xml_obj, XML_ATTR_UNAME));
}
}
if (data_set->localhost && pe_find_node(data_set->nodes, data_set->localhost) == NULL) {
crm_info("Creating a fake local node");
pe_create_node(data_set->localhost, data_set->localhost, NULL, 0,
data_set);
}
return TRUE;
}
static void
setup_container(pe_resource_t * rsc, pe_working_set_t * data_set)
{
const char *container_id = NULL;
if (rsc->children) {
g_list_foreach(rsc->children, (GFunc) setup_container, data_set);
return;
}
container_id = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_CONTAINER);
if (container_id && !pcmk__str_eq(container_id, rsc->id, pcmk__str_casei)) {
pe_resource_t *container = pe_find_resource(data_set->resources, container_id);
if (container) {
rsc->container = container;
pe__set_resource_flags(container, pe_rsc_is_container);
container->fillers = g_list_append(container->fillers, rsc);
pe_rsc_trace(rsc, "Resource %s's container is %s", rsc->id, container_id);
} else {
pe_err("Resource %s: Unknown resource container (%s)", rsc->id, container_id);
}
}
}
gboolean
unpack_remote_nodes(xmlNode * xml_resources, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
/* Create remote nodes and guest nodes from the resource configuration
* before unpacking resources.
*/
for (xml_obj = pcmk__xe_first_child(xml_resources); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
const char *new_node_id = NULL;
/* Check for remote nodes, which are defined by ocf:pacemaker:remote
* primitives.
*/
if (xml_contains_remote_node(xml_obj)) {
new_node_id = ID(xml_obj);
/* The "pe_find_node" check is here to make sure we don't iterate over
* an expanded node that has already been added to the node list. */
if (new_node_id && pe_find_node(data_set->nodes, new_node_id) == NULL) {
crm_trace("Found remote node %s defined by resource %s",
new_node_id, ID(xml_obj));
pe_create_node(new_node_id, new_node_id, "remote", NULL,
data_set);
}
continue;
}
/* Check for guest nodes, which are defined by special meta-attributes
* of a primitive of any type (for example, VirtualDomain or Xen).
*/
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_RESOURCE, pcmk__str_none)) {
/* This will add an ocf:pacemaker:remote primitive to the
* configuration for the guest node's connection, to be unpacked
* later.
*/
new_node_id = expand_remote_rsc_meta(xml_obj, xml_resources, data_set);
if (new_node_id && pe_find_node(data_set->nodes, new_node_id) == NULL) {
crm_trace("Found guest node %s in resource %s",
new_node_id, ID(xml_obj));
pe_create_node(new_node_id, new_node_id, "remote", NULL,
data_set);
}
continue;
}
/* Check for guest nodes inside a group. Clones are currently not
* supported as guest nodes.
*/
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_GROUP, pcmk__str_none)) {
xmlNode *xml_obj2 = NULL;
for (xml_obj2 = pcmk__xe_first_child(xml_obj); xml_obj2 != NULL;
xml_obj2 = pcmk__xe_next(xml_obj2)) {
new_node_id = expand_remote_rsc_meta(xml_obj2, xml_resources, data_set);
if (new_node_id && pe_find_node(data_set->nodes, new_node_id) == NULL) {
crm_trace("Found guest node %s in resource %s inside group %s",
new_node_id, ID(xml_obj2), ID(xml_obj));
pe_create_node(new_node_id, new_node_id, "remote", NULL,
data_set);
}
}
}
}
return TRUE;
}
/* Call this after all the nodes and resources have been
* unpacked, but before the status section is read.
*
* A remote node's online status is reflected by the state
* of the remote node's connection resource. We need to link
* the remote node to this connection resource so we can have
* easy access to the connection resource during the scheduler calculations.
*/
static void
link_rsc2remotenode(pe_working_set_t *data_set, pe_resource_t *new_rsc)
{
pe_node_t *remote_node = NULL;
if (new_rsc->is_remote_node == FALSE) {
return;
}
if (pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
/* remote_nodes and remote_resources are not linked in quick location calculations */
return;
}
remote_node = pe_find_node(data_set->nodes, new_rsc->id);
CRM_CHECK(remote_node != NULL, return;);
pe_rsc_trace(new_rsc, "Linking remote connection resource %s to node %s",
new_rsc->id, remote_node->details->uname);
remote_node->details->remote_rsc = new_rsc;
if (new_rsc->container == NULL) {
/* Handle start-up fencing for remote nodes (as opposed to guest nodes)
* the same as is done for cluster nodes.
*/
handle_startup_fencing(data_set, remote_node);
} else {
/* pe_create_node() marks the new node as "remote" or "cluster"; now
* that we know the node is a guest node, update it correctly.
*/
g_hash_table_replace(remote_node->details->attrs, strdup(CRM_ATTR_KIND),
strdup("container"));
}
}
static void
destroy_tag(gpointer data)
{
pe_tag_t *tag = data;
if (tag) {
free(tag->id);
g_list_free_full(tag->refs, free);
free(tag);
}
}
/*!
* \internal
* \brief Parse configuration XML for resource information
*
* \param[in] xml_resources Top of resource configuration XML
* \param[in,out] data_set Where to put resource information
*
* \return TRUE
*
* \note unpack_remote_nodes() MUST be called before this, so that the nodes can
* be used when common_unpack() calls resource_location()
*/
gboolean
unpack_resources(xmlNode * xml_resources, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
GList *gIter = NULL;
data_set->template_rsc_sets = pcmk__strkey_table(free, destroy_tag);
for (xml_obj = pcmk__xe_first_child(xml_resources); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
pe_resource_t *new_rsc = NULL;
if (pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_RSC_TEMPLATE, pcmk__str_none)) {
const char *template_id = ID(xml_obj);
if (template_id && g_hash_table_lookup_extended(data_set->template_rsc_sets,
template_id, NULL, NULL) == FALSE) {
/* Record the template's ID for the knowledge of its existence anyway. */
g_hash_table_insert(data_set->template_rsc_sets, strdup(template_id), NULL);
}
continue;
}
crm_trace("Beginning unpack... <%s id=%s... >", crm_element_name(xml_obj), ID(xml_obj));
if (common_unpack(xml_obj, &new_rsc, NULL, data_set) && (new_rsc != NULL)) {
data_set->resources = g_list_append(data_set->resources, new_rsc);
pe_rsc_trace(new_rsc, "Added resource %s", new_rsc->id);
} else {
pcmk__config_err("Ignoring <%s> resource '%s' "
"because configuration is invalid",
crm_element_name(xml_obj), crm_str(ID(xml_obj)));
if (new_rsc != NULL && new_rsc->fns != NULL) {
new_rsc->fns->free(new_rsc);
}
}
}
for (gIter = data_set->resources; gIter != NULL; gIter = gIter->next) {
pe_resource_t *rsc = (pe_resource_t *) gIter->data;
setup_container(rsc, data_set);
link_rsc2remotenode(data_set, rsc);
}
data_set->resources = g_list_sort(data_set->resources, sort_rsc_priority);
if (pcmk_is_set(data_set->flags, pe_flag_quick_location)) {
/* Ignore */
} else if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)
&& !pcmk_is_set(data_set->flags, pe_flag_have_stonith_resource)) {
pcmk__config_err("Resource start-up disabled since no STONITH resources have been defined");
pcmk__config_err("Either configure some or disable STONITH with the stonith-enabled option");
pcmk__config_err("NOTE: Clusters with shared data need STONITH to ensure data integrity");
}
return TRUE;
}
gboolean
unpack_tags(xmlNode * xml_tags, pe_working_set_t * data_set)
{
xmlNode *xml_tag = NULL;
data_set->tags = pcmk__strkey_table(free, destroy_tag);
for (xml_tag = pcmk__xe_first_child(xml_tags); xml_tag != NULL;
xml_tag = pcmk__xe_next(xml_tag)) {
xmlNode *xml_obj_ref = NULL;
const char *tag_id = ID(xml_tag);
if (!pcmk__str_eq((const char *)xml_tag->name, XML_CIB_TAG_TAG, pcmk__str_none)) {
continue;
}
if (tag_id == NULL) {
pcmk__config_err("Ignoring <%s> without " XML_ATTR_ID,
crm_element_name(xml_tag));
continue;
}
for (xml_obj_ref = pcmk__xe_first_child(xml_tag); xml_obj_ref != NULL;
xml_obj_ref = pcmk__xe_next(xml_obj_ref)) {
const char *obj_ref = ID(xml_obj_ref);
if (!pcmk__str_eq((const char *)xml_obj_ref->name, XML_CIB_TAG_OBJ_REF, pcmk__str_none)) {
continue;
}
if (obj_ref == NULL) {
pcmk__config_err("Ignoring <%s> for tag '%s' without " XML_ATTR_ID,
crm_element_name(xml_obj_ref), tag_id);
continue;
}
if (add_tag_ref(data_set->tags, tag_id, obj_ref) == FALSE) {
return FALSE;
}
}
}
return TRUE;
}
/* The ticket state section:
* "/cib/status/tickets/ticket_state" */
static gboolean
unpack_ticket_state(xmlNode * xml_ticket, pe_working_set_t * data_set)
{
const char *ticket_id = NULL;
const char *granted = NULL;
const char *last_granted = NULL;
const char *standby = NULL;
xmlAttrPtr xIter = NULL;
pe_ticket_t *ticket = NULL;
ticket_id = ID(xml_ticket);
if (pcmk__str_empty(ticket_id)) {
return FALSE;
}
crm_trace("Processing ticket state for %s", ticket_id);
ticket = g_hash_table_lookup(data_set->tickets, ticket_id);
if (ticket == NULL) {
ticket = ticket_new(ticket_id, data_set);
if (ticket == NULL) {
return FALSE;
}
}
for (xIter = xml_ticket->properties; xIter; xIter = xIter->next) {
const char *prop_name = (const char *)xIter->name;
const char *prop_value = crm_element_value(xml_ticket, prop_name);
if (pcmk__str_eq(prop_name, XML_ATTR_ID, pcmk__str_none)) {
continue;
}
g_hash_table_replace(ticket->state, strdup(prop_name), strdup(prop_value));
}
granted = g_hash_table_lookup(ticket->state, "granted");
if (granted && crm_is_true(granted)) {
ticket->granted = TRUE;
crm_info("We have ticket '%s'", ticket->id);
} else {
ticket->granted = FALSE;
crm_info("We do not have ticket '%s'", ticket->id);
}
last_granted = g_hash_table_lookup(ticket->state, "last-granted");
if (last_granted) {
long long last_granted_ll;
pcmk__scan_ll(last_granted, &last_granted_ll, 0LL);
ticket->last_granted = (time_t) last_granted_ll;
}
standby = g_hash_table_lookup(ticket->state, "standby");
if (standby && crm_is_true(standby)) {
ticket->standby = TRUE;
if (ticket->granted) {
crm_info("Granted ticket '%s' is in standby-mode", ticket->id);
}
} else {
ticket->standby = FALSE;
}
crm_trace("Done with ticket state for %s", ticket_id);
return TRUE;
}
static gboolean
unpack_tickets_state(xmlNode * xml_tickets, pe_working_set_t * data_set)
{
xmlNode *xml_obj = NULL;
for (xml_obj = pcmk__xe_first_child(xml_tickets); xml_obj != NULL;
xml_obj = pcmk__xe_next(xml_obj)) {
if (!pcmk__str_eq((const char *)xml_obj->name, XML_CIB_TAG_TICKET_STATE, pcmk__str_none)) {
continue;
}
unpack_ticket_state(xml_obj, data_set);
}
return TRUE;
}
static void
unpack_handle_remote_attrs(pe_node_t *this_node, xmlNode *state, pe_working_set_t * data_set)
{
const char *resource_discovery_enabled = NULL;
xmlNode *attrs = NULL;
pe_resource_t *rsc = NULL;
if (!pcmk__str_eq((const char *)state->name, XML_CIB_TAG_STATE, pcmk__str_none)) {
return;
}
if ((this_node == NULL) || !pe__is_guest_or_remote_node(this_node)) {
return;
}
crm_trace("Processing remote node id=%s, uname=%s", this_node->details->id, this_node->details->uname);
pcmk__scan_min_int(crm_element_value(state, XML_NODE_IS_MAINTENANCE),
&(this_node->details->remote_maintenance), 0);
rsc = this_node->details->remote_rsc;
if (this_node->details->remote_requires_reset == FALSE) {
this_node->details->unclean = FALSE;
this_node->details->unseen = FALSE;
}
attrs = find_xml_node(state, XML_TAG_TRANSIENT_NODEATTRS, FALSE);
add_node_attrs(attrs, this_node, TRUE, data_set);
if (pe__shutdown_requested(this_node)) {
crm_info("Node %s is shutting down", this_node->details->uname);
this_node->details->shutdown = TRUE;
}
if (crm_is_true(pe_node_attribute_raw(this_node, "standby"))) {
crm_info("Node %s is in standby-mode", this_node->details->uname);
this_node->details->standby = TRUE;
}
if (crm_is_true(pe_node_attribute_raw(this_node, "maintenance")) ||
((rsc != NULL) && !pcmk_is_set(rsc->flags, pe_rsc_managed))) {
crm_info("Node %s is in maintenance-mode", this_node->details->uname);
this_node->details->maintenance = TRUE;
}
resource_discovery_enabled = pe_node_attribute_raw(this_node, XML_NODE_ATTR_RSC_DISCOVERY);
if (resource_discovery_enabled && !crm_is_true(resource_discovery_enabled)) {
if (pe__is_remote_node(this_node)
&& !pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
crm_warn("Ignoring %s attribute on remote node %s because stonith is disabled",
XML_NODE_ATTR_RSC_DISCOVERY, this_node->details->uname);
} else {
/* This is either a remote node with fencing enabled, or a guest
* node. We don't care whether fencing is enabled when fencing guest
* nodes, because they are "fenced" by recovering their containing
* resource.
*/
crm_info("Node %s has resource discovery disabled", this_node->details->uname);
this_node->details->rsc_discovery_enabled = FALSE;
}
}
}
/*!
* \internal
* \brief Unpack a cluster node's transient attributes
*
* \param[in] state CIB node state XML
* \param[in] node Cluster node whose attributes are being unpacked
* \param[in] data_set Cluster working set
*/
static void
unpack_transient_attributes(xmlNode *state, pe_node_t *node,
pe_working_set_t *data_set)
{
const char *discovery = NULL;
xmlNode *attrs = find_xml_node(state, XML_TAG_TRANSIENT_NODEATTRS, FALSE);
add_node_attrs(attrs, node, TRUE, data_set);
if (crm_is_true(pe_node_attribute_raw(node, "standby"))) {
crm_info("Node %s is in standby-mode", node->details->uname);
node->details->standby = TRUE;
}
if (crm_is_true(pe_node_attribute_raw(node, "maintenance"))) {
crm_info("Node %s is in maintenance-mode", node->details->uname);
node->details->maintenance = TRUE;
}
discovery = pe_node_attribute_raw(node, XML_NODE_ATTR_RSC_DISCOVERY);
if ((discovery != NULL) && !crm_is_true(discovery)) {
crm_warn("Ignoring %s attribute for node %s because disabling "
"resource discovery is not allowed for cluster nodes",
XML_NODE_ATTR_RSC_DISCOVERY, node->details->uname);
}
}
/*!
* \internal
* \brief Unpack a node state entry (first pass)
*
* Unpack one node state entry from status. This unpacks information from the
* node_state element itself and node attributes inside it, but not the
* resource history inside it. Multiple passes through the status are needed to
* fully unpack everything.
*
* \param[in] state CIB node state XML
* \param[in] data_set Cluster working set
*/
static void
unpack_node_state(xmlNode *state, pe_working_set_t *data_set)
{
const char *id = NULL;
const char *uname = NULL;
pe_node_t *this_node = NULL;
id = crm_element_value(state, XML_ATTR_ID);
if (id == NULL) {
crm_warn("Ignoring malformed " XML_CIB_TAG_STATE " entry without "
XML_ATTR_ID);
return;
}
uname = crm_element_value(state, XML_ATTR_UNAME);
if (uname == NULL) {
crm_warn("Ignoring malformed " XML_CIB_TAG_STATE " entry without "
XML_ATTR_UNAME);
return;
}
this_node = pe_find_node_any(data_set->nodes, id, uname);
if (this_node == NULL) {
pcmk__config_warn("Ignoring recorded node state for '%s' because "
"it is no longer in the configuration", uname);
return;
}
if (pe__is_guest_or_remote_node(this_node)) {
/* We can't determine the online status of Pacemaker Remote nodes until
* after all resource history has been unpacked. In this first pass, we
* do need to mark whether the node has been fenced, as this plays a
* role during unpacking cluster node resource state.
*/
pcmk__scan_min_int(crm_element_value(state, XML_NODE_IS_FENCED),
&(this_node->details->remote_was_fenced), 0);
return;
}
unpack_transient_attributes(state, this_node, data_set);
/* Provisionally mark this cluster node as clean. We have at least seen it
* in the current cluster's lifetime.
*/
this_node->details->unclean = FALSE;
this_node->details->unseen = FALSE;
crm_trace("Determining online status of cluster node %s (id %s)",
this_node->details->uname, id);
determine_online_status(state, this_node, data_set);
if (!pcmk_is_set(data_set->flags, pe_flag_have_quorum)
&& this_node->details->online
&& (data_set->no_quorum_policy == no_quorum_suicide)) {
/* Everything else should flow from this automatically
* (at least until the scheduler becomes able to migrate off
* healthy resources)
*/
pe_fence_node(data_set, this_node, "cluster does not have quorum",
FALSE);
}
}
/*!
* \internal
* \brief Unpack nodes' resource history as much as possible
*
* Unpack as many nodes' resource history as possible in one pass through the
* status. We need to process Pacemaker Remote nodes' connections/containers
* before unpacking their history; the connection/container history will be
* in another node's history, so it might take multiple passes to unpack
* everything.
*
* \param[in] status CIB XML status section
* \param[in] fence If true, treat any not-yet-unpacked nodes as unseen
* \param[in] data_set Cluster working set
*
* \return Standard Pacemaker return code (specifically pcmk_rc_ok if done,
* or EAGAIN if more unpacking remains to be done)
*/
static int
unpack_node_history(xmlNode *status, bool fence, pe_working_set_t *data_set)
{
int rc = pcmk_rc_ok;
// Loop through all node_state entries in CIB status
for (xmlNode *state = first_named_child(status, XML_CIB_TAG_STATE);
state != NULL; state = crm_next_same_xml(state)) {
const char *id = ID(state);
const char *uname = crm_element_value(state, XML_ATTR_UNAME);
pe_node_t *this_node = NULL;
if ((id == NULL) || (uname == NULL)) {
// Warning already logged in first pass through status section
crm_trace("Not unpacking resource history from malformed "
XML_CIB_TAG_STATE " without id and/or uname");
continue;
}
this_node = pe_find_node_any(data_set->nodes, id, uname);
if (this_node == NULL) {
// Warning already logged in first pass through status section
crm_trace("Not unpacking resource history for node %s because "
"no longer in configuration", id);
continue;
}
if (this_node->details->unpacked) {
crm_trace("Not unpacking resource history for node %s because "
"already unpacked", id);
continue;
}
if (fence) {
// We're processing all remaining nodes
} else if (pe__is_guest_node(this_node)) {
/* We can unpack a guest node's history only after we've unpacked
* other resource history to the point that we know that the node's
* connection and containing resource are both up.
*/
pe_resource_t *rsc = this_node->details->remote_rsc;
if ((rsc == NULL) || (rsc->role != RSC_ROLE_STARTED)
|| (rsc->container->role != RSC_ROLE_STARTED)) {
crm_trace("Not unpacking resource history for guest node %s "
"because container and connection are not known to "
"be up", id);
continue;
}
} else if (pe__is_remote_node(this_node)) {
/* We can unpack a remote node's history only after we've unpacked
* other resource history to the point that we know that the node's
* connection is up, with the exception of when shutdown locks are
* in use.
*/
pe_resource_t *rsc = this_node->details->remote_rsc;
if ((rsc == NULL)
|| (!pcmk_is_set(data_set->flags, pe_flag_shutdown_lock)
&& (rsc->role != RSC_ROLE_STARTED))) {
crm_trace("Not unpacking resource history for remote node %s "
"because connection is not known to be up", id);
continue;
}
/* If fencing and shutdown locks are disabled and we're not processing
* unseen nodes, then we don't want to unpack offline nodes until online
* nodes have been unpacked. This allows us to number active clone
* instances first.
*/
} else if (!pcmk_any_flags_set(data_set->flags, pe_flag_stonith_enabled
|pe_flag_shutdown_lock)
&& !this_node->details->online) {
crm_trace("Not unpacking resource history for offline "
"cluster node %s", id);
continue;
}
if (pe__is_guest_or_remote_node(this_node)) {
determine_remote_online_status(data_set, this_node);
unpack_handle_remote_attrs(this_node, state, data_set);
}
crm_trace("Unpacking resource history for %snode %s",
(fence? "unseen " : ""), id);
this_node->details->unpacked = TRUE;
unpack_node_lrm(this_node, state, data_set);
rc = EAGAIN; // Other node histories might depend on this one
}
return rc;
}
/* remove nodes that are down, stopping */
/* create positive rsc_to_node constraints between resources and the nodes they are running on */
/* anything else? */
gboolean
unpack_status(xmlNode * status, pe_working_set_t * data_set)
{
xmlNode *state = NULL;
crm_trace("Beginning unpack");
if (data_set->tickets == NULL) {
data_set->tickets = pcmk__strkey_table(free, destroy_ticket);
}
for (state = pcmk__xe_first_child(status); state != NULL;
state = pcmk__xe_next(state)) {
if (pcmk__str_eq((const char *)state->name, XML_CIB_TAG_TICKETS, pcmk__str_none)) {
unpack_tickets_state((xmlNode *) state, data_set);
} else if (pcmk__str_eq((const char *)state->name, XML_CIB_TAG_STATE, pcmk__str_none)) {
unpack_node_state(state, data_set);
}
}
while (unpack_node_history(status, FALSE, data_set) == EAGAIN) {
crm_trace("Another pass through node resource histories is needed");
}
// Now catch any nodes we didn't see
unpack_node_history(status,
pcmk_is_set(data_set->flags, pe_flag_stonith_enabled),
data_set);
/* Now that we know where resources are, we can schedule stops of containers
* with failed bundle connections
*/
if (data_set->stop_needed != NULL) {
for (GList *item = data_set->stop_needed; item; item = item->next) {
pe_resource_t *container = item->data;
pe_node_t *node = pe__current_node(container);
if (node) {
stop_action(container, node, FALSE);
}
}
g_list_free(data_set->stop_needed);
data_set->stop_needed = NULL;
}
/* Now that we know status of all Pacemaker Remote connections and nodes,
* we can stop connections for node shutdowns, and check the online status
* of remote/guest nodes that didn't have any node history to unpack.
*/
for (GList *gIter = data_set->nodes; gIter != NULL; gIter = gIter->next) {
pe_node_t *this_node = gIter->data;
if (!pe__is_guest_or_remote_node(this_node)) {
continue;
}
if (this_node->details->shutdown
&& (this_node->details->remote_rsc != NULL)) {
pe__set_next_role(this_node->details->remote_rsc, RSC_ROLE_STOPPED,
"remote shutdown");
}
if (!this_node->details->unpacked) {
determine_remote_online_status(data_set, this_node);
}
}
return TRUE;
}
static gboolean
determine_online_status_no_fencing(pe_working_set_t * data_set, xmlNode * node_state,
pe_node_t * this_node)
{
gboolean online = FALSE;
const char *join = crm_element_value(node_state, XML_NODE_JOIN_STATE);
const char *is_peer = crm_element_value(node_state, XML_NODE_IS_PEER);
const char *in_cluster = crm_element_value(node_state, XML_NODE_IN_CLUSTER);
const char *exp_state = crm_element_value(node_state, XML_NODE_EXPECTED);
if (!crm_is_true(in_cluster)) {
crm_trace("Node is down: in_cluster=%s", crm_str(in_cluster));
} else if (pcmk__str_eq(is_peer, ONLINESTATUS, pcmk__str_casei)) {
if (pcmk__str_eq(join, CRMD_JOINSTATE_MEMBER, pcmk__str_casei)) {
online = TRUE;
} else {
crm_debug("Node is not ready to run resources: %s", join);
}
} else if (this_node->details->expected_up == FALSE) {
crm_trace("Controller is down: in_cluster=%s", crm_str(in_cluster));
crm_trace("\tis_peer=%s, join=%s, expected=%s",
crm_str(is_peer), crm_str(join), crm_str(exp_state));
} else {
/* mark it unclean */
pe_fence_node(data_set, this_node, "peer is unexpectedly down", FALSE);
crm_info("\tin_cluster=%s, is_peer=%s, join=%s, expected=%s",
crm_str(in_cluster), crm_str(is_peer), crm_str(join), crm_str(exp_state));
}
return online;
}
static gboolean
determine_online_status_fencing(pe_working_set_t * data_set, xmlNode * node_state,
pe_node_t * this_node)
{
gboolean online = FALSE;
gboolean do_terminate = FALSE;
bool crmd_online = FALSE;
const char *join = crm_element_value(node_state, XML_NODE_JOIN_STATE);
const char *is_peer = crm_element_value(node_state, XML_NODE_IS_PEER);
const char *in_cluster = crm_element_value(node_state, XML_NODE_IN_CLUSTER);
const char *exp_state = crm_element_value(node_state, XML_NODE_EXPECTED);
const char *terminate = pe_node_attribute_raw(this_node, "terminate");
/*
- XML_NODE_IN_CLUSTER ::= true|false
- XML_NODE_IS_PEER ::= online|offline
- XML_NODE_JOIN_STATE ::= member|down|pending|banned
- XML_NODE_EXPECTED ::= member|down
*/
if (crm_is_true(terminate)) {
do_terminate = TRUE;
} else if (terminate != NULL && strlen(terminate) > 0) {
/* could be a time() value */
char t = terminate[0];
if (t != '0' && isdigit(t)) {
do_terminate = TRUE;
}
}
crm_trace("%s: in_cluster=%s, is_peer=%s, join=%s, expected=%s, term=%d",
this_node->details->uname, crm_str(in_cluster), crm_str(is_peer),
crm_str(join), crm_str(exp_state), do_terminate);
online = crm_is_true(in_cluster);
crmd_online = pcmk__str_eq(is_peer, ONLINESTATUS, pcmk__str_casei);
if (exp_state == NULL) {
exp_state = CRMD_JOINSTATE_DOWN;
}
if (this_node->details->shutdown) {
crm_debug("%s is shutting down", this_node->details->uname);
/* Slightly different criteria since we can't shut down a dead peer */
online = crmd_online;
} else if (in_cluster == NULL) {
pe_fence_node(data_set, this_node, "peer has not been seen by the cluster", FALSE);
} else if (pcmk__str_eq(join, CRMD_JOINSTATE_NACK, pcmk__str_casei)) {
pe_fence_node(data_set, this_node,
"peer failed Pacemaker membership criteria", FALSE);
} else if (do_terminate == FALSE && pcmk__str_eq(exp_state, CRMD_JOINSTATE_DOWN, pcmk__str_casei)) {
if (crm_is_true(in_cluster) || crmd_online) {
crm_info("- Node %s is not ready to run resources", this_node->details->uname);
this_node->details->standby = TRUE;
this_node->details->pending = TRUE;
} else {
crm_trace("%s is down or still coming up", this_node->details->uname);
}
} else if (do_terminate && pcmk__str_eq(join, CRMD_JOINSTATE_DOWN, pcmk__str_casei)
&& crm_is_true(in_cluster) == FALSE && !crmd_online) {
crm_info("Node %s was just shot", this_node->details->uname);
online = FALSE;
} else if (crm_is_true(in_cluster) == FALSE) {
// Consider `priority-fencing-delay` for lost nodes
pe_fence_node(data_set, this_node, "peer is no longer part of the cluster", TRUE);
} else if (!crmd_online) {
pe_fence_node(data_set, this_node, "peer process is no longer available", FALSE);
/* Everything is running at this point, now check join state */
} else if (do_terminate) {
pe_fence_node(data_set, this_node, "termination was requested", FALSE);
} else if (pcmk__str_eq(join, CRMD_JOINSTATE_MEMBER, pcmk__str_casei)) {
crm_info("Node %s is active", this_node->details->uname);
} else if (pcmk__strcase_any_of(join, CRMD_JOINSTATE_PENDING, CRMD_JOINSTATE_DOWN, NULL)) {
crm_info("Node %s is not ready to run resources", this_node->details->uname);
this_node->details->standby = TRUE;
this_node->details->pending = TRUE;
} else {
pe_fence_node(data_set, this_node, "peer was in an unknown state", FALSE);
crm_warn("%s: in-cluster=%s, is-peer=%s, join=%s, expected=%s, term=%d, shutdown=%d",
this_node->details->uname, crm_str(in_cluster), crm_str(is_peer),
crm_str(join), crm_str(exp_state), do_terminate, this_node->details->shutdown);
}
return online;
}
static void
determine_remote_online_status(pe_working_set_t * data_set, pe_node_t * this_node)
{
pe_resource_t *rsc = this_node->details->remote_rsc;
pe_resource_t *container = NULL;
pe_node_t *host = NULL;
/* If there is a node state entry for a (former) Pacemaker Remote node
* but no resource creating that node, the node's connection resource will
* be NULL. Consider it an offline remote node in that case.
*/
if (rsc == NULL) {
this_node->details->online = FALSE;
goto remote_online_done;
}
container = rsc->container;
if (container && pcmk__list_of_1(rsc->running_on)) {
host = rsc->running_on->data;
}
/* If the resource is currently started, mark it online. */
if (rsc->role == RSC_ROLE_STARTED) {
crm_trace("%s node %s presumed ONLINE because connection resource is started",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->online = TRUE;
}
/* consider this node shutting down if transitioning start->stop */
if (rsc->role == RSC_ROLE_STARTED && rsc->next_role == RSC_ROLE_STOPPED) {
crm_trace("%s node %s shutting down because connection resource is stopping",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->shutdown = TRUE;
}
/* Now check all the failure conditions. */
if(container && pcmk_is_set(container->flags, pe_rsc_failed)) {
crm_trace("Guest node %s UNCLEAN because guest resource failed",
this_node->details->id);
this_node->details->online = FALSE;
this_node->details->remote_requires_reset = TRUE;
} else if (pcmk_is_set(rsc->flags, pe_rsc_failed)) {
crm_trace("%s node %s OFFLINE because connection resource failed",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->online = FALSE;
} else if (rsc->role == RSC_ROLE_STOPPED
|| (container && container->role == RSC_ROLE_STOPPED)) {
crm_trace("%s node %s OFFLINE because its resource is stopped",
(container? "Guest" : "Remote"), this_node->details->id);
this_node->details->online = FALSE;
this_node->details->remote_requires_reset = FALSE;
} else if (host && (host->details->online == FALSE)
&& host->details->unclean) {
crm_trace("Guest node %s UNCLEAN because host is unclean",
this_node->details->id);
this_node->details->online = FALSE;
this_node->details->remote_requires_reset = TRUE;
}
remote_online_done:
crm_trace("Remote node %s online=%s",
this_node->details->id, this_node->details->online ? "TRUE" : "FALSE");
}
static void
determine_online_status(xmlNode * node_state, pe_node_t * this_node, pe_working_set_t * data_set)
{
gboolean online = FALSE;
const char *exp_state = crm_element_value(node_state, XML_NODE_EXPECTED);
CRM_CHECK(this_node != NULL, return);
this_node->details->shutdown = FALSE;
this_node->details->expected_up = FALSE;
if (pe__shutdown_requested(this_node)) {
this_node->details->shutdown = TRUE;
} else if (pcmk__str_eq(exp_state, CRMD_JOINSTATE_MEMBER, pcmk__str_casei)) {
this_node->details->expected_up = TRUE;
}
if (this_node->details->type == node_ping) {
this_node->details->unclean = FALSE;
online = FALSE; /* As far as resource management is concerned,
* the node is safely offline.
* Anyone caught abusing this logic will be shot
*/
} else if (!pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
online = determine_online_status_no_fencing(data_set, node_state, this_node);
} else {
online = determine_online_status_fencing(data_set, node_state, this_node);
}
if (online) {
this_node->details->online = TRUE;
} else {
/* remove node from contention */
this_node->fixed = TRUE;
this_node->weight = -INFINITY;
}
if (online && this_node->details->shutdown) {
/* don't run resources here */
this_node->fixed = TRUE;
this_node->weight = -INFINITY;
}
if (this_node->details->type == node_ping) {
crm_info("Node %s is not a Pacemaker node", this_node->details->uname);
} else if (this_node->details->unclean) {
pe_proc_warn("Node %s is unclean", this_node->details->uname);
} else if (this_node->details->online) {
crm_info("Node %s is %s", this_node->details->uname,
this_node->details->shutdown ? "shutting down" :
this_node->details->pending ? "pending" :
this_node->details->standby ? "standby" :
this_node->details->maintenance ? "maintenance" : "online");
} else {
crm_trace("Node %s is offline", this_node->details->uname);
}
}
/*!
* \internal
* \brief Find the end of a resource's name, excluding any clone suffix
*
* \param[in] id Resource ID to check
*
* \return Pointer to last character of resource's base name
*/
const char *
pe_base_name_end(const char *id)
{
if (!pcmk__str_empty(id)) {
const char *end = id + strlen(id) - 1;
for (const char *s = end; s > id; --s) {
switch (*s) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
break;
case ':':
return (s == end)? s : (s - 1);
default:
return end;
}
}
return end;
}
return NULL;
}
/*!
* \internal
* \brief Get a resource name excluding any clone suffix
*
* \param[in] last_rsc_id Resource ID to check
*
* \return Pointer to newly allocated string with resource's base name
* \note It is the caller's responsibility to free() the result.
* This asserts on error, so callers can assume result is not NULL.
*/
char *
clone_strip(const char *last_rsc_id)
{
const char *end = pe_base_name_end(last_rsc_id);
char *basename = NULL;
CRM_ASSERT(end);
basename = strndup(last_rsc_id, end - last_rsc_id + 1);
CRM_ASSERT(basename);
return basename;
}
/*!
* \internal
* \brief Get the name of the first instance of a cloned resource
*
* \param[in] last_rsc_id Resource ID to check
*
* \return Pointer to newly allocated string with resource's base name plus :0
* \note It is the caller's responsibility to free() the result.
* This asserts on error, so callers can assume result is not NULL.
*/
char *
clone_zero(const char *last_rsc_id)
{
const char *end = pe_base_name_end(last_rsc_id);
size_t base_name_len = end - last_rsc_id + 1;
char *zero = NULL;
CRM_ASSERT(end);
zero = calloc(base_name_len + 3, sizeof(char));
CRM_ASSERT(zero);
memcpy(zero, last_rsc_id, base_name_len);
zero[base_name_len] = ':';
zero[base_name_len + 1] = '0';
return zero;
}
static pe_resource_t *
create_fake_resource(const char *rsc_id, xmlNode * rsc_entry, pe_working_set_t * data_set)
{
pe_resource_t *rsc = NULL;
xmlNode *xml_rsc = create_xml_node(NULL, XML_CIB_TAG_RESOURCE);
copy_in_properties(xml_rsc, rsc_entry);
crm_xml_add(xml_rsc, XML_ATTR_ID, rsc_id);
crm_log_xml_debug(xml_rsc, "Orphan resource");
if (!common_unpack(xml_rsc, &rsc, NULL, data_set)) {
return NULL;
}
if (xml_contains_remote_node(xml_rsc)) {
pe_node_t *node;
crm_debug("Detected orphaned remote node %s", rsc_id);
node = pe_find_node(data_set->nodes, rsc_id);
if (node == NULL) {
node = pe_create_node(rsc_id, rsc_id, "remote", NULL, data_set);
}
link_rsc2remotenode(data_set, rsc);
if (node) {
crm_trace("Setting node %s as shutting down due to orphaned connection resource", rsc_id);
node->details->shutdown = TRUE;
}
}
if (crm_element_value(rsc_entry, XML_RSC_ATTR_CONTAINER)) {
/* This orphaned rsc needs to be mapped to a container. */
crm_trace("Detected orphaned container filler %s", rsc_id);
pe__set_resource_flags(rsc, pe_rsc_orphan_container_filler);
}
pe__set_resource_flags(rsc, pe_rsc_orphan);
data_set->resources = g_list_append(data_set->resources, rsc);
return rsc;
}
/*!
* \internal
* \brief Create orphan instance for anonymous clone resource history
*/
static pe_resource_t *
create_anonymous_orphan(pe_resource_t *parent, const char *rsc_id,
pe_node_t *node, pe_working_set_t *data_set)
{
pe_resource_t *top = pe__create_clone_child(parent, data_set);
// find_rsc() because we might be a cloned group
pe_resource_t *orphan = top->fns->find_rsc(top, rsc_id, NULL, pe_find_clone);
pe_rsc_debug(parent, "Created orphan %s for %s: %s on %s",
top->id, parent->id, rsc_id, node->details->uname);
return orphan;
}
/*!
* \internal
* \brief Check a node for an instance of an anonymous clone
*
* Return a child instance of the specified anonymous clone, in order of
* preference: (1) the instance running on the specified node, if any;
* (2) an inactive instance (i.e. within the total of clone-max instances);
* (3) a newly created orphan (i.e. clone-max instances are already active).
*
* \param[in] data_set Cluster information
* \param[in] node Node on which to check for instance
* \param[in] parent Clone to check
* \param[in] rsc_id Name of cloned resource in history (without instance)
*/
static pe_resource_t *
find_anonymous_clone(pe_working_set_t * data_set, pe_node_t * node, pe_resource_t * parent,
const char *rsc_id)
{
GList *rIter = NULL;
pe_resource_t *rsc = NULL;
pe_resource_t *inactive_instance = NULL;
gboolean skip_inactive = FALSE;
CRM_ASSERT(parent != NULL);
CRM_ASSERT(pe_rsc_is_clone(parent));
CRM_ASSERT(!pcmk_is_set(parent->flags, pe_rsc_unique));
// Check for active (or partially active, for cloned groups) instance
pe_rsc_trace(parent, "Looking for %s on %s in %s", rsc_id, node->details->uname, parent->id);
for (rIter = parent->children; rsc == NULL && rIter; rIter = rIter->next) {
GList *locations = NULL;
pe_resource_t *child = rIter->data;
/* Check whether this instance is already known to be active or pending
* anywhere, at this stage of unpacking. Because this function is called
* for a resource before the resource's individual operation history
* entries are unpacked, locations will generally not contain the
* desired node.
*
* However, there are three exceptions:
* (1) when child is a cloned group and we have already unpacked the
* history of another member of the group on the same node;
* (2) when we've already unpacked the history of another numbered
* instance on the same node (which can happen if globally-unique
* was flipped from true to false); and
* (3) when we re-run calculations on the same data set as part of a
* simulation.
*/
child->fns->location(child, &locations, 2);
if (locations) {
/* We should never associate the same numbered anonymous clone
* instance with multiple nodes, and clone instances can't migrate,
* so there must be only one location, regardless of history.
*/
CRM_LOG_ASSERT(locations->next == NULL);
if (((pe_node_t *)locations->data)->details == node->details) {
/* This child instance is active on the requested node, so check
* for a corresponding configured resource. We use find_rsc()
* instead of child because child may be a cloned group, and we
* need the particular member corresponding to rsc_id.
*
* If the history entry is orphaned, rsc will be NULL.
*/
rsc = parent->fns->find_rsc(child, rsc_id, NULL, pe_find_clone);
if (rsc) {
/* If there are multiple instance history entries for an
* anonymous clone in a single node's history (which can
* happen if globally-unique is switched from true to
* false), we want to consider the instances beyond the
* first as orphans, even if there are inactive instance
* numbers available.
*/
if (rsc->running_on) {
crm_notice("Active (now-)anonymous clone %s has "
"multiple (orphan) instance histories on %s",
parent->id, node->details->uname);
skip_inactive = TRUE;
rsc = NULL;
} else {
pe_rsc_trace(parent, "Resource %s, active", rsc->id);
}
}
}
g_list_free(locations);
} else {
pe_rsc_trace(parent, "Resource %s, skip inactive", child->id);
if (!skip_inactive && !inactive_instance
&& !pcmk_is_set(child->flags, pe_rsc_block)) {
// Remember one inactive instance in case we don't find active
inactive_instance = parent->fns->find_rsc(child, rsc_id, NULL,
pe_find_clone);
/* ... but don't use it if it was already associated with a
* pending action on another node
*/
if (inactive_instance && inactive_instance->pending_node
&& (inactive_instance->pending_node->details != node->details)) {
inactive_instance = NULL;
}
}
}
}
if ((rsc == NULL) && !skip_inactive && (inactive_instance != NULL)) {
pe_rsc_trace(parent, "Resource %s, empty slot", inactive_instance->id);
rsc = inactive_instance;
}
/* If the resource has "requires" set to "quorum" or "nothing", and we don't
* have a clone instance for every node, we don't want to consume a valid
* instance number for unclean nodes. Such instances may appear to be active
* according to the history, but should be considered inactive, so we can
* start an instance elsewhere. Treat such instances as orphans.
*
* An exception is instances running on guest nodes -- since guest node
* "fencing" is actually just a resource stop, requires shouldn't apply.
*
* @TODO Ideally, we'd use an inactive instance number if it is not needed
* for any clean instances. However, we don't know that at this point.
*/
if ((rsc != NULL) && !pcmk_is_set(rsc->flags, pe_rsc_needs_fencing)
&& (!node->details->online || node->details->unclean)
&& !pe__is_guest_node(node)
&& !pe__is_universal_clone(parent, data_set)) {
rsc = NULL;
}
if (rsc == NULL) {
rsc = create_anonymous_orphan(parent, rsc_id, node, data_set);
pe_rsc_trace(parent, "Resource %s, orphan", rsc->id);
}
return rsc;
}
static pe_resource_t *
unpack_find_resource(pe_working_set_t * data_set, pe_node_t * node, const char *rsc_id,
xmlNode * rsc_entry)
{
pe_resource_t *rsc = NULL;
pe_resource_t *parent = NULL;
crm_trace("looking for %s", rsc_id);
rsc = pe_find_resource(data_set->resources, rsc_id);
if (rsc == NULL) {
/* If we didn't find the resource by its name in the operation history,
* check it again as a clone instance. Even when clone-max=0, we create
* a single :0 orphan to match against here.
*/
char *clone0_id = clone_zero(rsc_id);
pe_resource_t *clone0 = pe_find_resource(data_set->resources, clone0_id);
if (clone0 && !pcmk_is_set(clone0->flags, pe_rsc_unique)) {
rsc = clone0;
parent = uber_parent(clone0);
crm_trace("%s found as %s (%s)", rsc_id, clone0_id, parent->id);
} else {
crm_trace("%s is not known as %s either (orphan)",
rsc_id, clone0_id);
}
free(clone0_id);
} else if (rsc->variant > pe_native) {
crm_trace("Resource history for %s is orphaned because it is no longer primitive",
rsc_id);
return NULL;
} else {
parent = uber_parent(rsc);
}
if (pe_rsc_is_anon_clone(parent)) {
if (pe_rsc_is_bundled(parent)) {
rsc = pe__find_bundle_replica(parent->parent, node);
} else {
char *base = clone_strip(rsc_id);
rsc = find_anonymous_clone(data_set, node, parent, base);
free(base);
CRM_ASSERT(rsc != NULL);
}
}
if (rsc && !pcmk__str_eq(rsc_id, rsc->id, pcmk__str_casei)
&& !pcmk__str_eq(rsc_id, rsc->clone_name, pcmk__str_casei)) {
free(rsc->clone_name);
rsc->clone_name = strdup(rsc_id);
pe_rsc_debug(rsc, "Internally renamed %s on %s to %s%s",
rsc_id, node->details->uname, rsc->id,
(pcmk_is_set(rsc->flags, pe_rsc_orphan)? " (ORPHAN)" : ""));
}
return rsc;
}
static pe_resource_t *
process_orphan_resource(xmlNode * rsc_entry, pe_node_t * node, pe_working_set_t * data_set)
{
pe_resource_t *rsc = NULL;
const char *rsc_id = crm_element_value(rsc_entry, XML_ATTR_ID);
crm_debug("Detected orphan resource %s on %s", rsc_id, node->details->uname);
rsc = create_fake_resource(rsc_id, rsc_entry, data_set);
if (rsc == NULL) {
return NULL;
}
if (!pcmk_is_set(data_set->flags, pe_flag_stop_rsc_orphans)) {
pe__clear_resource_flags(rsc, pe_rsc_managed);
} else {
CRM_CHECK(rsc != NULL, return NULL);
pe_rsc_trace(rsc, "Added orphan %s", rsc->id);
resource_location(rsc, NULL, -INFINITY, "__orphan_do_not_run__", data_set);
}
return rsc;
}
static void
process_rsc_state(pe_resource_t * rsc, pe_node_t * node,
enum action_fail_response on_fail,
xmlNode * migrate_op, pe_working_set_t * data_set)
{
pe_node_t *tmpnode = NULL;
char *reason = NULL;
enum action_fail_response save_on_fail = action_fail_ignore;
CRM_ASSERT(rsc);
pe_rsc_trace(rsc, "Resource %s is %s on %s: on_fail=%s",
rsc->id, role2text(rsc->role), node->details->uname, fail2text(on_fail));
/* process current state */
if (rsc->role != RSC_ROLE_UNKNOWN) {
pe_resource_t *iter = rsc;
while (iter) {
if (g_hash_table_lookup(iter->known_on, node->details->id) == NULL) {
pe_node_t *n = pe__copy_node(node);
pe_rsc_trace(rsc, "%s (aka. %s) known on %s", rsc->id, rsc->clone_name,
n->details->uname);
g_hash_table_insert(iter->known_on, (gpointer) n->details->id, n);
}
if (pcmk_is_set(iter->flags, pe_rsc_unique)) {
break;
}
iter = iter->parent;
}
}
/* If a managed resource is believed to be running, but node is down ... */
if (rsc->role > RSC_ROLE_STOPPED
&& node->details->online == FALSE
&& node->details->maintenance == FALSE
&& pcmk_is_set(rsc->flags, pe_rsc_managed)) {
gboolean should_fence = FALSE;
/* If this is a guest node, fence it (regardless of whether fencing is
* enabled, because guest node fencing is done by recovery of the
* container resource rather than by the fencer). Mark the resource
* we're processing as failed. When the guest comes back up, its
* operation history in the CIB will be cleared, freeing the affected
* resource to run again once we are sure we know its state.
*/
if (pe__is_guest_node(node)) {
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
should_fence = TRUE;
} else if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
if (pe__is_remote_node(node) && node->details->remote_rsc
&& !pcmk_is_set(node->details->remote_rsc->flags, pe_rsc_failed)) {
/* Setting unseen means that fencing of the remote node will
* occur only if the connection resource is not going to start
* somewhere. This allows connection resources on a failed
* cluster node to move to another node without requiring the
* remote nodes to be fenced as well.
*/
node->details->unseen = TRUE;
reason = crm_strdup_printf("%s is active there (fencing will be"
" revoked if remote connection can "
"be re-established elsewhere)",
rsc->id);
}
should_fence = TRUE;
}
if (should_fence) {
if (reason == NULL) {
reason = crm_strdup_printf("%s is thought to be active there", rsc->id);
}
pe_fence_node(data_set, node, reason, FALSE);
}
free(reason);
}
/* In order to calculate priority_fencing_delay correctly, save the failure information and pass it to native_add_running(). */
save_on_fail = on_fail;
if (node->details->unclean) {
/* No extra processing needed
* Also allows resources to be started again after a node is shot
*/
on_fail = action_fail_ignore;
}
switch (on_fail) {
case action_fail_ignore:
/* nothing to do */
break;
case action_fail_demote:
pe__set_resource_flags(rsc, pe_rsc_failed);
demote_action(rsc, node, FALSE);
break;
case action_fail_fence:
/* treat it as if it is still running
* but also mark the node as unclean
*/
reason = crm_strdup_printf("%s failed there", rsc->id);
pe_fence_node(data_set, node, reason, FALSE);
free(reason);
break;
case action_fail_standby:
node->details->standby = TRUE;
node->details->standby_onfail = TRUE;
break;
case action_fail_block:
/* is_managed == FALSE will prevent any
* actions being sent for the resource
*/
pe__clear_resource_flags(rsc, pe_rsc_managed);
pe__set_resource_flags(rsc, pe_rsc_block);
break;
case action_fail_migrate:
/* make sure it comes up somewhere else
* or not at all
*/
resource_location(rsc, node, -INFINITY, "__action_migration_auto__", data_set);
break;
case action_fail_stop:
pe__set_next_role(rsc, RSC_ROLE_STOPPED, "on-fail=stop");
break;
case action_fail_recover:
if (rsc->role != RSC_ROLE_STOPPED && rsc->role != RSC_ROLE_UNKNOWN) {
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
stop_action(rsc, node, FALSE);
}
break;
case action_fail_restart_container:
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
if (rsc->container && pe_rsc_is_bundled(rsc)) {
/* A bundle's remote connection can run on a different node than
* the bundle's container. We don't necessarily know where the
* container is running yet, so remember it and add a stop
* action for it later.
*/
data_set->stop_needed = g_list_prepend(data_set->stop_needed,
rsc->container);
} else if (rsc->container) {
stop_action(rsc->container, node, FALSE);
} else if (rsc->role != RSC_ROLE_STOPPED && rsc->role != RSC_ROLE_UNKNOWN) {
stop_action(rsc, node, FALSE);
}
break;
case action_fail_reset_remote:
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
tmpnode = NULL;
if (rsc->is_remote_node) {
tmpnode = pe_find_node(data_set->nodes, rsc->id);
}
if (tmpnode &&
pe__is_remote_node(tmpnode) &&
tmpnode->details->remote_was_fenced == 0) {
/* The remote connection resource failed in a way that
* should result in fencing the remote node.
*/
pe_fence_node(data_set, tmpnode,
"remote connection is unrecoverable", FALSE);
}
}
/* require the stop action regardless if fencing is occurring or not. */
if (rsc->role > RSC_ROLE_STOPPED) {
stop_action(rsc, node, FALSE);
}
/* if reconnect delay is in use, prevent the connection from exiting the
* "STOPPED" role until the failure is cleared by the delay timeout. */
if (rsc->remote_reconnect_ms) {
pe__set_next_role(rsc, RSC_ROLE_STOPPED, "remote reset");
}
break;
}
/* ensure a remote-node connection failure forces an unclean remote-node
* to be fenced. By setting unseen = FALSE, the remote-node failure will
* result in a fencing operation regardless if we're going to attempt to
* reconnect to the remote-node in this transition or not. */
if (pcmk_is_set(rsc->flags, pe_rsc_failed) && rsc->is_remote_node) {
tmpnode = pe_find_node(data_set->nodes, rsc->id);
if (tmpnode && tmpnode->details->unclean) {
tmpnode->details->unseen = FALSE;
}
}
if (rsc->role != RSC_ROLE_STOPPED && rsc->role != RSC_ROLE_UNKNOWN) {
if (pcmk_is_set(rsc->flags, pe_rsc_orphan)) {
if (pcmk_is_set(rsc->flags, pe_rsc_managed)) {
pcmk__config_warn("Detected active orphan %s running on %s",
rsc->id, node->details->uname);
} else {
pcmk__config_warn("Resource '%s' must be stopped manually on "
"%s because cluster is configured not to "
"stop active orphans",
rsc->id, node->details->uname);
}
}
native_add_running(rsc, node, data_set, (save_on_fail != action_fail_ignore));
switch (on_fail) {
case action_fail_ignore:
break;
case action_fail_demote:
case action_fail_block:
pe__set_resource_flags(rsc, pe_rsc_failed);
break;
default:
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
break;
}
} else if (rsc->clone_name && strchr(rsc->clone_name, ':') != NULL) {
/* Only do this for older status sections that included instance numbers
* Otherwise stopped instances will appear as orphans
*/
pe_rsc_trace(rsc, "Resetting clone_name %s for %s (stopped)", rsc->clone_name, rsc->id);
free(rsc->clone_name);
rsc->clone_name = NULL;
} else {
GList *possible_matches = pe__resource_actions(rsc, node, RSC_STOP,
FALSE);
GList *gIter = possible_matches;
for (; gIter != NULL; gIter = gIter->next) {
pe_action_t *stop = (pe_action_t *) gIter->data;
pe__set_action_flags(stop, pe_action_optional);
}
g_list_free(possible_matches);
}
}
/* create active recurring operations as optional */
static void
process_recurring(pe_node_t * node, pe_resource_t * rsc,
int start_index, int stop_index,
GList *sorted_op_list, pe_working_set_t * data_set)
{
int counter = -1;
const char *task = NULL;
const char *status = NULL;
GList *gIter = sorted_op_list;
CRM_ASSERT(rsc);
pe_rsc_trace(rsc, "%s: Start index %d, stop index = %d", rsc->id, start_index, stop_index);
for (; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
guint interval_ms = 0;
char *key = NULL;
const char *id = ID(rsc_op);
counter++;
if (node->details->online == FALSE) {
pe_rsc_trace(rsc, "Skipping %s/%s: node is offline", rsc->id, node->details->uname);
break;
/* Need to check if there's a monitor for role="Stopped" */
} else if (start_index < stop_index && counter <= stop_index) {
pe_rsc_trace(rsc, "Skipping %s/%s: resource is not active", id, node->details->uname);
continue;
} else if (counter < start_index) {
pe_rsc_trace(rsc, "Skipping %s/%s: old %d", id, node->details->uname, counter);
continue;
}
crm_element_value_ms(rsc_op, XML_LRM_ATTR_INTERVAL_MS, &interval_ms);
if (interval_ms == 0) {
pe_rsc_trace(rsc, "Skipping %s/%s: non-recurring", id, node->details->uname);
continue;
}
status = crm_element_value(rsc_op, XML_LRM_ATTR_OPSTATUS);
if (pcmk__str_eq(status, "-1", pcmk__str_casei)) {
pe_rsc_trace(rsc, "Skipping %s/%s: status", id, node->details->uname);
continue;
}
task = crm_element_value(rsc_op, XML_LRM_ATTR_TASK);
/* create the action */
key = pcmk__op_key(rsc->id, task, interval_ms);
pe_rsc_trace(rsc, "Creating %s/%s", key, node->details->uname);
custom_action(rsc, key, task, node, TRUE, TRUE, data_set);
}
}
void
calculate_active_ops(GList *sorted_op_list, int *start_index, int *stop_index)
{
int counter = -1;
int implied_monitor_start = -1;
int implied_clone_start = -1;
const char *task = NULL;
const char *status = NULL;
GList *gIter = sorted_op_list;
*stop_index = -1;
*start_index = -1;
for (; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
counter++;
task = crm_element_value(rsc_op, XML_LRM_ATTR_TASK);
status = crm_element_value(rsc_op, XML_LRM_ATTR_OPSTATUS);
if (pcmk__str_eq(task, CRMD_ACTION_STOP, pcmk__str_casei)
&& pcmk__str_eq(status, "0", pcmk__str_casei)) {
*stop_index = counter;
} else if (pcmk__strcase_any_of(task, CRMD_ACTION_START, CRMD_ACTION_MIGRATED, NULL)) {
*start_index = counter;
} else if ((implied_monitor_start <= *stop_index) && pcmk__str_eq(task, CRMD_ACTION_STATUS, pcmk__str_casei)) {
const char *rc = crm_element_value(rsc_op, XML_LRM_ATTR_RC);
if (pcmk__strcase_any_of(rc, "0", "8", NULL)) {
implied_monitor_start = counter;
}
} else if (pcmk__strcase_any_of(task, CRMD_ACTION_PROMOTE, CRMD_ACTION_DEMOTE, NULL)) {
implied_clone_start = counter;
}
}
if (*start_index == -1) {
if (implied_clone_start != -1) {
*start_index = implied_clone_start;
} else if (implied_monitor_start != -1) {
*start_index = implied_monitor_start;
}
}
}
// If resource history entry has shutdown lock, remember lock node and time
static void
unpack_shutdown_lock(xmlNode *rsc_entry, pe_resource_t *rsc, pe_node_t *node,
pe_working_set_t *data_set)
{
time_t lock_time = 0; // When lock started (i.e. node shutdown time)
if ((crm_element_value_epoch(rsc_entry, XML_CONFIG_ATTR_SHUTDOWN_LOCK,
&lock_time) == pcmk_ok) && (lock_time != 0)) {
if ((data_set->shutdown_lock > 0)
&& (get_effective_time(data_set)
> (lock_time + data_set->shutdown_lock))) {
pe_rsc_info(rsc, "Shutdown lock for %s on %s expired",
rsc->id, node->details->uname);
pe__clear_resource_history(rsc, node, data_set);
} else {
rsc->lock_node = node;
rsc->lock_time = lock_time;
}
}
}
/*!
* \internal
* \brief Unpack one lrm_resource entry from a node's CIB status
*
* \param[in] node Node whose status is being unpacked
* \param[in] rsc_entry lrm_resource XML being unpacked
* \param[in] data_set Cluster working set
*
* \return Resource corresponding to the entry, or NULL if no operation history
*/
static pe_resource_t *
unpack_lrm_resource(pe_node_t *node, xmlNode *lrm_resource,
pe_working_set_t *data_set)
{
GList *gIter = NULL;
int stop_index = -1;
int start_index = -1;
enum rsc_role_e req_role = RSC_ROLE_UNKNOWN;
const char *task = NULL;
const char *rsc_id = ID(lrm_resource);
pe_resource_t *rsc = NULL;
GList *op_list = NULL;
GList *sorted_op_list = NULL;
xmlNode *migrate_op = NULL;
xmlNode *rsc_op = NULL;
xmlNode *last_failure = NULL;
enum action_fail_response on_fail = action_fail_ignore;
enum rsc_role_e saved_role = RSC_ROLE_UNKNOWN;
if (rsc_id == NULL) {
crm_warn("Ignoring malformed " XML_LRM_TAG_RESOURCE
" entry without id");
return NULL;
}
crm_trace("Unpacking " XML_LRM_TAG_RESOURCE " for %s on %s",
rsc_id, node->details->uname);
// Build a list of individual lrm_rsc_op entries, so we can sort them
for (rsc_op = first_named_child(lrm_resource, XML_LRM_TAG_RSC_OP);
rsc_op != NULL; rsc_op = crm_next_same_xml(rsc_op)) {
op_list = g_list_prepend(op_list, rsc_op);
}
if (!pcmk_is_set(data_set->flags, pe_flag_shutdown_lock)) {
if (op_list == NULL) {
// If there are no operations, there is nothing to do
return NULL;
}
}
/* find the resource */
rsc = unpack_find_resource(data_set, node, rsc_id, lrm_resource);
if (rsc == NULL) {
if (op_list == NULL) {
// If there are no operations, there is nothing to do
return NULL;
} else {
rsc = process_orphan_resource(lrm_resource, node, data_set);
}
}
CRM_ASSERT(rsc != NULL);
// Check whether the resource is "shutdown-locked" to this node
if (pcmk_is_set(data_set->flags, pe_flag_shutdown_lock)) {
unpack_shutdown_lock(lrm_resource, rsc, node, data_set);
}
/* process operations */
saved_role = rsc->role;
rsc->role = RSC_ROLE_UNKNOWN;
sorted_op_list = g_list_sort(op_list, sort_op_by_callid);
for (gIter = sorted_op_list; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
task = crm_element_value(rsc_op, XML_LRM_ATTR_TASK);
if (pcmk__str_eq(task, CRMD_ACTION_MIGRATED, pcmk__str_casei)) {
migrate_op = rsc_op;
}
unpack_rsc_op(rsc, node, rsc_op, &last_failure, &on_fail, data_set);
}
/* create active recurring operations as optional */
calculate_active_ops(sorted_op_list, &start_index, &stop_index);
process_recurring(node, rsc, start_index, stop_index, sorted_op_list, data_set);
/* no need to free the contents */
g_list_free(sorted_op_list);
process_rsc_state(rsc, node, on_fail, migrate_op, data_set);
if (get_target_role(rsc, &req_role)) {
if (rsc->next_role == RSC_ROLE_UNKNOWN || req_role < rsc->next_role) {
pe__set_next_role(rsc, req_role, XML_RSC_ATTR_TARGET_ROLE);
} else if (req_role > rsc->next_role) {
pe_rsc_info(rsc, "%s: Not overwriting calculated next role %s"
" with requested next role %s",
rsc->id, role2text(rsc->next_role), role2text(req_role));
}
}
if (saved_role > rsc->role) {
rsc->role = saved_role;
}
return rsc;
}
static void
handle_orphaned_container_fillers(xmlNode * lrm_rsc_list, pe_working_set_t * data_set)
{
xmlNode *rsc_entry = NULL;
for (rsc_entry = pcmk__xe_first_child(lrm_rsc_list); rsc_entry != NULL;
rsc_entry = pcmk__xe_next(rsc_entry)) {
pe_resource_t *rsc;
pe_resource_t *container;
const char *rsc_id;
const char *container_id;
if (!pcmk__str_eq((const char *)rsc_entry->name, XML_LRM_TAG_RESOURCE, pcmk__str_casei)) {
continue;
}
container_id = crm_element_value(rsc_entry, XML_RSC_ATTR_CONTAINER);
rsc_id = crm_element_value(rsc_entry, XML_ATTR_ID);
if (container_id == NULL || rsc_id == NULL) {
continue;
}
container = pe_find_resource(data_set->resources, container_id);
if (container == NULL) {
continue;
}
rsc = pe_find_resource(data_set->resources, rsc_id);
if (rsc == NULL ||
!pcmk_is_set(rsc->flags, pe_rsc_orphan_container_filler) ||
rsc->container != NULL) {
continue;
}
pe_rsc_trace(rsc, "Mapped container of orphaned resource %s to %s",
rsc->id, container_id);
rsc->container = container;
container->fillers = g_list_append(container->fillers, rsc);
}
}
/*!
* \internal
* \brief Unpack one node's lrm status section
*
* \param[in] node Node whose status is being unpacked
* \param[in] xml CIB node state XML
* \param[in] data_set Cluster working set
*/
static void
unpack_node_lrm(pe_node_t *node, xmlNode *xml, pe_working_set_t *data_set)
{
bool found_orphaned_container_filler = false;
// Drill down to lrm_resources section
xml = find_xml_node(xml, XML_CIB_TAG_LRM, FALSE);
if (xml == NULL) {
return;
}
xml = find_xml_node(xml, XML_LRM_TAG_RESOURCES, FALSE);
if (xml == NULL) {
return;
}
// Unpack each lrm_resource entry
for (xmlNode *rsc_entry = first_named_child(xml, XML_LRM_TAG_RESOURCE);
rsc_entry != NULL; rsc_entry = crm_next_same_xml(rsc_entry)) {
pe_resource_t *rsc = unpack_lrm_resource(node, rsc_entry, data_set);
if ((rsc != NULL)
&& pcmk_is_set(rsc->flags, pe_rsc_orphan_container_filler)) {
found_orphaned_container_filler = true;
}
}
/* Now that all resource state has been unpacked for this node, map any
* orphaned container fillers to their container resource.
*/
if (found_orphaned_container_filler) {
handle_orphaned_container_fillers(xml, data_set);
}
}
static void
set_active(pe_resource_t * rsc)
{
pe_resource_t *top = uber_parent(rsc);
if (top && pcmk_is_set(top->flags, pe_rsc_promotable)) {
rsc->role = RSC_ROLE_UNPROMOTED;
} else {
rsc->role = RSC_ROLE_STARTED;
}
}
static void
set_node_score(gpointer key, gpointer value, gpointer user_data)
{
pe_node_t *node = value;
int *score = user_data;
node->weight = *score;
}
#define STATUS_PATH_MAX 1024
static xmlNode *
find_lrm_op(const char *resource, const char *op, const char *node, const char *source,
bool success_only, pe_working_set_t *data_set)
{
int offset = 0;
char xpath[STATUS_PATH_MAX];
xmlNode *xml = NULL;
offset += snprintf(xpath + offset, STATUS_PATH_MAX - offset, "//node_state[@uname='%s']", node);
offset +=
snprintf(xpath + offset, STATUS_PATH_MAX - offset, "//" XML_LRM_TAG_RESOURCE "[@id='%s']",
resource);
/* Need to check against transition_magic too? */
if (source && pcmk__str_eq(op, CRMD_ACTION_MIGRATE, pcmk__str_casei)) {
offset +=
snprintf(xpath + offset, STATUS_PATH_MAX - offset,
"/" XML_LRM_TAG_RSC_OP "[@operation='%s' and @migrate_target='%s']", op,
source);
} else if (source && pcmk__str_eq(op, CRMD_ACTION_MIGRATED, pcmk__str_casei)) {
offset +=
snprintf(xpath + offset, STATUS_PATH_MAX - offset,
"/" XML_LRM_TAG_RSC_OP "[@operation='%s' and @migrate_source='%s']", op,
source);
} else {
offset +=
snprintf(xpath + offset, STATUS_PATH_MAX - offset,
"/" XML_LRM_TAG_RSC_OP "[@operation='%s']", op);
}
CRM_LOG_ASSERT(offset > 0);
xml = get_xpath_object(xpath, data_set->input, LOG_DEBUG);
if (xml && success_only) {
int rc = PCMK_OCF_UNKNOWN_ERROR;
int status = PCMK_EXEC_ERROR;
crm_element_value_int(xml, XML_LRM_ATTR_RC, &rc);
crm_element_value_int(xml, XML_LRM_ATTR_OPSTATUS, &status);
if ((rc != PCMK_OCF_OK) || (status != PCMK_EXEC_DONE)) {
return NULL;
}
}
return xml;
}
static int
pe__call_id(xmlNode *op_xml)
{
int id = 0;
if (op_xml) {
crm_element_value_int(op_xml, XML_LRM_ATTR_CALLID, &id);
}
return id;
}
/*!
* \brief Check whether a stop happened on the same node after some event
*
* \param[in] rsc Resource being checked
* \param[in] node Node being checked
* \param[in] xml_op Event that stop is being compared to
* \param[in] data_set Cluster working set
*
* \return TRUE if stop happened after event, FALSE otherwise
*
* \note This is really unnecessary, but kept as a safety mechanism. We
* currently don't save more than one successful event in history, so this
* only matters when processing really old CIB files that we don't
* technically support anymore, or as preparation for logging an extended
* history in the future.
*/
static bool
stop_happened_after(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
pe_working_set_t *data_set)
{
xmlNode *stop_op = find_lrm_op(rsc->id, CRMD_ACTION_STOP,
node->details->uname, NULL, TRUE, data_set);
return (stop_op && (pe__call_id(stop_op) > pe__call_id(xml_op)));
}
static void
unpack_migrate_to_success(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
pe_working_set_t *data_set)
{
/* A successful migration sequence is:
* migrate_to on source node
* migrate_from on target node
* stop on source node
*
* If a migrate_to is followed by a stop, the entire migration (successful
* or failed) is complete, and we don't care what happened on the target.
*
* If no migrate_from has happened, the migration is considered to be
* "partial". If the migrate_from failed, make sure the resource gets
* stopped on both source and target (if up).
*
* If the migrate_to and migrate_from both succeeded (which also implies the
* resource is no longer running on the source), but there is no stop, the
* migration is considered to be "dangling". Schedule a stop on the source
* in this case.
*/
int from_rc = 0;
int from_status = 0;
pe_node_t *target_node = NULL;
pe_node_t *source_node = NULL;
xmlNode *migrate_from = NULL;
const char *source = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_SOURCE);
const char *target = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_TARGET);
// Sanity check
CRM_CHECK(source && target && !strcmp(source, node->details->uname), return);
if (stop_happened_after(rsc, node, xml_op, data_set)) {
return;
}
// Clones are not allowed to migrate, so role can't be promoted
rsc->role = RSC_ROLE_STARTED;
target_node = pe_find_node(data_set->nodes, target);
source_node = pe_find_node(data_set->nodes, source);
// Check whether there was a migrate_from action on the target
migrate_from = find_lrm_op(rsc->id, CRMD_ACTION_MIGRATED, target,
source, FALSE, data_set);
if (migrate_from) {
crm_element_value_int(migrate_from, XML_LRM_ATTR_RC, &from_rc);
crm_element_value_int(migrate_from, XML_LRM_ATTR_OPSTATUS, &from_status);
pe_rsc_trace(rsc, "%s op on %s exited with status=%d, rc=%d",
ID(migrate_from), target, from_status, from_rc);
}
if (migrate_from && from_rc == PCMK_OCF_OK
&& (from_status == PCMK_EXEC_DONE)) {
/* The migrate_to and migrate_from both succeeded, so mark the migration
* as "dangling". This will be used to schedule a stop action on the
* source without affecting the target.
*/
pe_rsc_trace(rsc, "Detected dangling migration op: %s on %s", ID(xml_op),
source);
rsc->role = RSC_ROLE_STOPPED;
rsc->dangling_migrations = g_list_prepend(rsc->dangling_migrations, node);
} else if (migrate_from && (from_status != PCMK_EXEC_PENDING)) { // Failed
if (target_node && target_node->details->online) {
pe_rsc_trace(rsc, "Marking active on %s %p %d", target, target_node,
target_node->details->online);
native_add_running(rsc, target_node, data_set, TRUE);
}
} else { // Pending, or complete but erased
if (target_node && target_node->details->online) {
pe_rsc_trace(rsc, "Marking active on %s %p %d", target, target_node,
target_node->details->online);
native_add_running(rsc, target_node, data_set, FALSE);
if (source_node && source_node->details->online) {
/* This is a partial migration: the migrate_to completed
* successfully on the source, but the migrate_from has not
* completed. Remember the source and target; if the newly
* chosen target remains the same when we schedule actions
* later, we may continue with the migration.
*/
rsc->partial_migration_target = target_node;
rsc->partial_migration_source = source_node;
}
} else {
/* Consider it failed here - forces a restart, prevents migration */
pe__set_resource_flags(rsc, pe_rsc_failed|pe_rsc_stop);
pe__clear_resource_flags(rsc, pe_rsc_allow_migrate);
}
}
}
// Is there an action_name in node_name's rsc history newer than call_id?
static bool
newer_op(pe_resource_t *rsc, const char *action_name, const char *node_name,
int call_id, pe_working_set_t *data_set)
{
xmlNode *action = find_lrm_op(rsc->id, action_name, node_name, NULL, TRUE,
data_set);
return pe__call_id(action) > call_id;
}
static void
unpack_migrate_to_failure(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
pe_working_set_t *data_set)
{
int target_stop_id = 0;
int target_migrate_from_id = 0;
xmlNode *target_stop = NULL;
xmlNode *target_migrate_from = NULL;
const char *source = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_SOURCE);
const char *target = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_TARGET);
// Sanity check
CRM_CHECK(source && target && !strcmp(source, node->details->uname), return);
/* If a migration failed, we have to assume the resource is active. Clones
* are not allowed to migrate, so role can't be promoted.
*/
rsc->role = RSC_ROLE_STARTED;
// Check for stop on the target
target_stop = find_lrm_op(rsc->id, CRMD_ACTION_STOP, target, NULL,
TRUE, data_set);
target_stop_id = pe__call_id(target_stop);
// Check for migrate_from on the target
target_migrate_from = find_lrm_op(rsc->id, CRMD_ACTION_MIGRATED, target,
source, TRUE, data_set);
target_migrate_from_id = pe__call_id(target_migrate_from);
if ((target_stop == NULL) || (target_stop_id < target_migrate_from_id)) {
/* There was no stop on the target, or a stop that happened before a
* migrate_from, so assume the resource is still active on the target
* (if it is up).
*/
pe_node_t *target_node = pe_find_node(data_set->nodes, target);
pe_rsc_trace(rsc, "stop (%d) + migrate_from (%d)",
target_stop_id, target_migrate_from_id);
if (target_node && target_node->details->online) {
native_add_running(rsc, target_node, data_set, FALSE);
}
} else if (target_migrate_from == NULL) {
/* We know there was a stop on the target, but there may not have been a
* migrate_from (the stop could have happened before migrate_from was
* scheduled or attempted).
*
* That means this could be a "dangling" migration. But first, check
* whether there is a newer successful stop, start, or migrate_from on
* the source node -- it's possible the failed migration was followed by
* a successful stop, full restart, or migration in the reverse
* direction, in which case we don't want to force a stop.
*/
int source_migrate_to_id = pe__call_id(xml_op);
if (newer_op(rsc, CRMD_ACTION_MIGRATED, source, source_migrate_to_id,
data_set)
|| newer_op(rsc, CRMD_ACTION_START, source, source_migrate_to_id,
data_set)
|| newer_op(rsc, CRMD_ACTION_STOP, source, source_migrate_to_id,
data_set)) {
return;
}
// Mark node as having dangling migration so we can force a stop later
rsc->dangling_migrations = g_list_prepend(rsc->dangling_migrations, node);
}
}
static void
unpack_migrate_from_failure(pe_resource_t *rsc, pe_node_t *node,
xmlNode *xml_op, pe_working_set_t *data_set)
{
xmlNode *source_stop = NULL;
xmlNode *source_migrate_to = NULL;
const char *source = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_SOURCE);
const char *target = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_TARGET);
// Sanity check
CRM_CHECK(source && target && !strcmp(target, node->details->uname), return);
/* If a migration failed, we have to assume the resource is active. Clones
* are not allowed to migrate, so role can't be promoted.
*/
rsc->role = RSC_ROLE_STARTED;
// Check for a stop on the source
source_stop = find_lrm_op(rsc->id, CRMD_ACTION_STOP, source, NULL,
TRUE, data_set);
// Check for a migrate_to on the source
source_migrate_to = find_lrm_op(rsc->id, CRMD_ACTION_MIGRATE,
source, target, TRUE, data_set);
if ((source_stop == NULL)
|| (pe__call_id(source_stop) < pe__call_id(source_migrate_to))) {
/* There was no stop on the source, or a stop that happened before
* migrate_to, so assume the resource is still active on the source (if
* it is up).
*/
pe_node_t *source_node = pe_find_node(data_set->nodes, source);
if (source_node && source_node->details->online) {
native_add_running(rsc, source_node, data_set, TRUE);
}
}
}
static void
record_failed_op(xmlNode *op, const pe_node_t *node,
const pe_resource_t *rsc, pe_working_set_t *data_set)
{
xmlNode *xIter = NULL;
const char *op_key = crm_element_value(op, XML_LRM_ATTR_TASK_KEY);
if (node->details->online == FALSE) {
return;
}
for (xIter = data_set->failed->children; xIter; xIter = xIter->next) {
const char *key = crm_element_value(xIter, XML_LRM_ATTR_TASK_KEY);
const char *uname = crm_element_value(xIter, XML_ATTR_UNAME);
if(pcmk__str_eq(op_key, key, pcmk__str_casei) && pcmk__str_eq(uname, node->details->uname, pcmk__str_casei)) {
crm_trace("Skipping duplicate entry %s on %s", op_key, node->details->uname);
return;
}
}
crm_trace("Adding entry %s on %s", op_key, node->details->uname);
crm_xml_add(op, XML_ATTR_UNAME, node->details->uname);
crm_xml_add(op, XML_LRM_ATTR_RSCID, rsc->id);
add_node_copy(data_set->failed, op);
}
static const char *get_op_key(xmlNode *xml_op)
{
const char *key = crm_element_value(xml_op, XML_LRM_ATTR_TASK_KEY);
if(key == NULL) {
key = ID(xml_op);
}
return key;
}
static const char *
last_change_str(xmlNode *xml_op)
{
time_t when;
const char *when_s = NULL;
if (crm_element_value_epoch(xml_op, XML_RSC_OP_LAST_CHANGE,
&when) == pcmk_ok) {
when_s = pcmk__epoch2str(&when);
if (when_s) {
// Skip day of week to make message shorter
when_s = strchr(when_s, ' ');
if (when_s) {
++when_s;
}
}
}
return ((when_s && *when_s)? when_s : "unknown time");
}
/*!
* \internal
* \brief Compare two on-fail values
*
* \param[in] first One on-fail value to compare
* \param[in] second The other on-fail value to compare
*
* \return A negative number if second is more severe than first, zero if they
* are equal, or a positive number if first is more severe than second.
* \note This is only needed until the action_fail_response values can be
* renumbered at the next API compatibility break.
*/
static int
cmp_on_fail(enum action_fail_response first, enum action_fail_response second)
{
switch (first) {
case action_fail_demote:
switch (second) {
case action_fail_ignore:
return 1;
case action_fail_demote:
return 0;
default:
return -1;
}
break;
case action_fail_reset_remote:
switch (second) {
case action_fail_ignore:
case action_fail_demote:
case action_fail_recover:
return 1;
case action_fail_reset_remote:
return 0;
default:
return -1;
}
break;
case action_fail_restart_container:
switch (second) {
case action_fail_ignore:
case action_fail_demote:
case action_fail_recover:
case action_fail_reset_remote:
return 1;
case action_fail_restart_container:
return 0;
default:
return -1;
}
break;
default:
break;
}
switch (second) {
case action_fail_demote:
return (first == action_fail_ignore)? -1 : 1;
case action_fail_reset_remote:
switch (first) {
case action_fail_ignore:
case action_fail_demote:
case action_fail_recover:
return -1;
default:
return 1;
}
break;
case action_fail_restart_container:
switch (first) {
case action_fail_ignore:
case action_fail_demote:
case action_fail_recover:
case action_fail_reset_remote:
return -1;
default:
return 1;
}
break;
default:
break;
}
return first - second;
}
static void
unpack_rsc_op_failure(pe_resource_t * rsc, pe_node_t * node, int rc, xmlNode * xml_op, xmlNode ** last_failure,
enum action_fail_response * on_fail, pe_working_set_t * data_set)
{
- guint interval_ms = 0;
bool is_probe = false;
pe_action_t *action = NULL;
const char *key = get_op_key(xml_op);
const char *task = crm_element_value(xml_op, XML_LRM_ATTR_TASK);
const char *exit_reason = crm_element_value(xml_op,
XML_LRM_ATTR_EXIT_REASON);
CRM_ASSERT(rsc);
CRM_CHECK(task != NULL, return);
*last_failure = xml_op;
- crm_element_value_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS, &interval_ms);
- if ((interval_ms == 0) && !strcmp(task, CRMD_ACTION_STATUS)) {
- is_probe = true;
- }
+ is_probe = pcmk_xe_is_probe(xml_op);
if (exit_reason == NULL) {
exit_reason = "";
}
if (!pcmk_is_set(data_set->flags, pe_flag_symmetric_cluster)
&& (rc == PCMK_OCF_NOT_INSTALLED)) {
crm_trace("Unexpected result (%s%s%s) was recorded for "
"%s of %s on %s at %s " CRM_XS " rc=%d id=%s",
services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason,
(is_probe? "probe" : task), rsc->id, node->details->uname,
last_change_str(xml_op), rc, ID(xml_op));
} else {
crm_warn("Unexpected result (%s%s%s) was recorded for "
"%s of %s on %s at %s " CRM_XS " rc=%d id=%s",
services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason,
(is_probe? "probe" : task), rsc->id, node->details->uname,
last_change_str(xml_op), rc, ID(xml_op));
if (is_probe && (rc != PCMK_OCF_OK)
&& (rc != PCMK_OCF_NOT_RUNNING)
&& (rc != PCMK_OCF_RUNNING_PROMOTED)) {
/* A failed (not just unexpected) probe result could mean the user
* didn't know resources will be probed even where they can't run.
*/
crm_notice("If it is not possible for %s to run on %s, see "
"the resource-discovery option for location constraints",
rsc->id, node->details->uname);
}
record_failed_op(xml_op, node, rsc, data_set);
}
action = custom_action(rsc, strdup(key), task, NULL, TRUE, FALSE, data_set);
if (cmp_on_fail(*on_fail, action->on_fail) < 0) {
pe_rsc_trace(rsc, "on-fail %s -> %s for %s (%s)", fail2text(*on_fail),
fail2text(action->on_fail), action->uuid, key);
*on_fail = action->on_fail;
}
if (!strcmp(task, CRMD_ACTION_STOP)) {
resource_location(rsc, node, -INFINITY, "__stop_fail__", data_set);
} else if (!strcmp(task, CRMD_ACTION_MIGRATE)) {
unpack_migrate_to_failure(rsc, node, xml_op, data_set);
} else if (!strcmp(task, CRMD_ACTION_MIGRATED)) {
unpack_migrate_from_failure(rsc, node, xml_op, data_set);
} else if (!strcmp(task, CRMD_ACTION_PROMOTE)) {
rsc->role = RSC_ROLE_PROMOTED;
} else if (!strcmp(task, CRMD_ACTION_DEMOTE)) {
if (action->on_fail == action_fail_block) {
rsc->role = RSC_ROLE_PROMOTED;
pe__set_next_role(rsc, RSC_ROLE_STOPPED,
"demote with on-fail=block");
} else if(rc == PCMK_OCF_NOT_RUNNING) {
rsc->role = RSC_ROLE_STOPPED;
} else {
/* Staying in the promoted role would put the scheduler and
* controller into a loop. Setting the role to unpromoted is not
* dangerous because the resource will be stopped as part of
* recovery, and any promotion will be ordered after that stop.
*/
rsc->role = RSC_ROLE_UNPROMOTED;
}
}
if(is_probe && rc == PCMK_OCF_NOT_INSTALLED) {
/* leave stopped */
pe_rsc_trace(rsc, "Leaving %s stopped", rsc->id);
rsc->role = RSC_ROLE_STOPPED;
} else if (rsc->role < RSC_ROLE_STARTED) {
pe_rsc_trace(rsc, "Setting %s active", rsc->id);
set_active(rsc);
}
pe_rsc_trace(rsc, "Resource %s: role=%s, unclean=%s, on_fail=%s, fail_role=%s",
rsc->id, role2text(rsc->role),
pcmk__btoa(node->details->unclean),
fail2text(action->on_fail), role2text(action->fail_role));
if (action->fail_role != RSC_ROLE_STARTED && rsc->next_role < action->fail_role) {
pe__set_next_role(rsc, action->fail_role, "failure");
}
if (action->fail_role == RSC_ROLE_STOPPED) {
int score = -INFINITY;
pe_resource_t *fail_rsc = rsc;
if (fail_rsc->parent) {
pe_resource_t *parent = uber_parent(fail_rsc);
if (pe_rsc_is_clone(parent)
&& !pcmk_is_set(parent->flags, pe_rsc_unique)) {
/* For clone resources, if a child fails on an operation
* with on-fail = stop, all the resources fail. Do this by preventing
* the parent from coming up again. */
fail_rsc = parent;
}
}
crm_notice("%s will not be started under current conditions",
fail_rsc->id);
/* make sure it doesn't come up again */
if (fail_rsc->allowed_nodes != NULL) {
g_hash_table_destroy(fail_rsc->allowed_nodes);
}
fail_rsc->allowed_nodes = pe__node_list2table(data_set->nodes);
g_hash_table_foreach(fail_rsc->allowed_nodes, set_node_score, &score);
}
pe_free_action(action);
}
/*!
* \internal
* \brief Remap operation status based on action result
*
* Given an action result, determine an appropriate operation status for the
* purposes of responding to the action (the status provided by the executor is
* not directly usable since the executor does not know what was expected).
*
* \param[in,out] rsc Resource that operation history entry is for
* \param[in] rc Actual return code of operation
* \param[in] target_rc Expected return code of operation
* \param[in] node Node where operation was executed
* \param[in] xml_op Operation history entry XML from CIB status
* \param[in,out] on_fail What should be done about the result
* \param[in] data_set Current cluster working set
*
* \return Operation status based on return code and action info
* \note This may update the resource's current and next role.
*/
static int
determine_op_status(
pe_resource_t *rsc, int rc, int target_rc, pe_node_t * node, xmlNode * xml_op, enum action_fail_response * on_fail, pe_working_set_t * data_set)
{
guint interval_ms = 0;
bool is_probe = false;
int result = PCMK_EXEC_DONE;
const char *key = get_op_key(xml_op);
const char *task = crm_element_value(xml_op, XML_LRM_ATTR_TASK);
const char *exit_reason = crm_element_value(xml_op,
XML_LRM_ATTR_EXIT_REASON);
CRM_ASSERT(rsc);
CRM_CHECK(task != NULL, return PCMK_EXEC_ERROR);
if (exit_reason == NULL) {
exit_reason = "";
}
crm_element_value_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS, &interval_ms);
- if ((interval_ms == 0) && !strcmp(task, CRMD_ACTION_STATUS)) {
- is_probe = true;
+ is_probe = pcmk_xe_is_probe(xml_op);
+
+ if (is_probe) {
task = "probe";
}
if (target_rc < 0) {
/* Pre-1.0 Pacemaker versions, and Pacemaker 1.1.6 or earlier with
* Heartbeat 2.0.7 or earlier as the cluster layer, did not include the
* target_rc in the transition key, which (along with the similar case
* of a corrupted transition key in the CIB) will be reported to this
* function as -1. Pacemaker 2.0+ does not support rolling upgrades from
* those versions or processing of saved CIB files from those versions,
* so we do not need to care much about this case.
*/
result = PCMK_EXEC_ERROR;
crm_warn("Expected result not found for %s on %s (corrupt or obsolete CIB?)",
key, node->details->uname);
} else if (target_rc != rc) {
result = PCMK_EXEC_ERROR;
pe_rsc_debug(rsc, "%s on %s: expected %d (%s), got %d (%s%s%s)",
key, node->details->uname,
target_rc, services_ocf_exitcode_str(target_rc),
rc, services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason);
}
switch (rc) {
case PCMK_OCF_OK:
if (is_probe && (target_rc == PCMK_OCF_NOT_RUNNING)) {
result = PCMK_EXEC_DONE;
pe_rsc_info(rsc, "Probe found %s active on %s at %s",
rsc->id, node->details->uname,
last_change_str(xml_op));
}
break;
case PCMK_OCF_NOT_RUNNING:
if (is_probe || (target_rc == rc)
|| !pcmk_is_set(rsc->flags, pe_rsc_managed)) {
result = PCMK_EXEC_DONE;
rsc->role = RSC_ROLE_STOPPED;
/* clear any previous failure actions */
*on_fail = action_fail_ignore;
pe__set_next_role(rsc, RSC_ROLE_UNKNOWN, "not running");
}
break;
case PCMK_OCF_RUNNING_PROMOTED:
if (is_probe && (rc != target_rc)) {
result = PCMK_EXEC_DONE;
pe_rsc_info(rsc,
"Probe found %s active and promoted on %s at %s",
rsc->id, node->details->uname,
last_change_str(xml_op));
}
rsc->role = RSC_ROLE_PROMOTED;
break;
case PCMK_OCF_DEGRADED_PROMOTED:
case PCMK_OCF_FAILED_PROMOTED:
rsc->role = RSC_ROLE_PROMOTED;
result = PCMK_EXEC_ERROR;
break;
case PCMK_OCF_NOT_CONFIGURED:
result = PCMK_EXEC_ERROR_FATAL;
break;
case PCMK_OCF_UNIMPLEMENT_FEATURE:
if (interval_ms > 0) {
result = PCMK_EXEC_NOT_SUPPORTED;
break;
}
// fall through
case PCMK_OCF_NOT_INSTALLED:
case PCMK_OCF_INVALID_PARAM:
case PCMK_OCF_INSUFFICIENT_PRIV:
if (!pe_can_fence(data_set, node)
&& !strcmp(task, CRMD_ACTION_STOP)) {
/* If a stop fails and we can't fence, there's nothing else we can do */
pe_proc_err("No further recovery can be attempted for %s "
"because %s on %s failed (%s%s%s) at %s "
CRM_XS " rc=%d id=%s", rsc->id, task,
node->details->uname, services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason,
last_change_str(xml_op), rc, ID(xml_op));
pe__clear_resource_flags(rsc, pe_rsc_managed);
pe__set_resource_flags(rsc, pe_rsc_block);
}
result = PCMK_EXEC_ERROR_HARD;
break;
default:
if (result == PCMK_EXEC_DONE) {
crm_info("Treating unknown exit status %d from %s of %s "
"on %s at %s as failure",
rc, task, rsc->id, node->details->uname,
last_change_str(xml_op));
result = PCMK_EXEC_ERROR;
}
break;
}
return result;
}
// return TRUE if start or monitor last failure but parameters changed
static bool
should_clear_for_param_change(xmlNode *xml_op, const char *task,
pe_resource_t *rsc, pe_node_t *node,
pe_working_set_t *data_set)
{
if (!strcmp(task, "start") || !strcmp(task, "monitor")) {
if (pe__bundle_needs_remote_name(rsc, data_set)) {
/* We haven't allocated resources yet, so we can't reliably
* substitute addr parameters for the REMOTE_CONTAINER_HACK.
* When that's needed, defer the check until later.
*/
pe__add_param_check(xml_op, rsc, node, pe_check_last_failure,
data_set);
} else {
op_digest_cache_t *digest_data = NULL;
digest_data = rsc_action_digest_cmp(rsc, xml_op, node, data_set);
switch (digest_data->rc) {
case RSC_DIGEST_UNKNOWN:
crm_trace("Resource %s history entry %s on %s"
" has no digest to compare",
rsc->id, get_op_key(xml_op), node->details->id);
break;
case RSC_DIGEST_MATCH:
break;
default:
return TRUE;
}
}
}
return FALSE;
}
// Order action after fencing of remote node, given connection rsc
static void
order_after_remote_fencing(pe_action_t *action, pe_resource_t *remote_conn,
pe_working_set_t *data_set)
{
pe_node_t *remote_node = pe_find_node(data_set->nodes, remote_conn->id);
if (remote_node) {
pe_action_t *fence = pe_fence_op(remote_node, NULL, TRUE, NULL,
FALSE, data_set);
order_actions(fence, action, pe_order_implies_then);
}
}
static bool
should_ignore_failure_timeout(pe_resource_t *rsc, xmlNode *xml_op,
const char *task, guint interval_ms,
bool is_last_failure, pe_working_set_t *data_set)
{
/* Clearing failures of recurring monitors has special concerns. The
* executor reports only changes in the monitor result, so if the
* monitor is still active and still getting the same failure result,
* that will go undetected after the failure is cleared.
*
* Also, the operation history will have the time when the recurring
* monitor result changed to the given code, not the time when the
* result last happened.
*
* @TODO We probably should clear such failures only when the failure
* timeout has passed since the last occurrence of the failed result.
* However we don't record that information. We could maybe approximate
* that by clearing only if there is a more recent successful monitor or
* stop result, but we don't even have that information at this point
* since we are still unpacking the resource's operation history.
*
* This is especially important for remote connection resources with a
* reconnect interval, so in that case, we skip clearing failures
* if the remote node hasn't been fenced.
*/
if (rsc->remote_reconnect_ms
&& pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)
&& (interval_ms != 0) && pcmk__str_eq(task, CRMD_ACTION_STATUS, pcmk__str_casei)) {
pe_node_t *remote_node = pe_find_node(data_set->nodes, rsc->id);
if (remote_node && !remote_node->details->remote_was_fenced) {
if (is_last_failure) {
crm_info("Waiting to clear monitor failure for remote node %s"
" until fencing has occurred", rsc->id);
}
return TRUE;
}
}
return FALSE;
}
/*!
* \internal
* \brief Check operation age and schedule failure clearing when appropriate
*
* This function has two distinct purposes. The first is to check whether an
* operation history entry is expired (i.e. the resource has a failure timeout,
* the entry is older than the timeout, and the resource either has no fail
* count or its fail count is entirely older than the timeout). The second is to
* schedule fail count clearing when appropriate (i.e. the operation is expired
* and either the resource has an expired fail count or the operation is a
* last_failure for a remote connection resource with a reconnect interval,
* or the operation is a last_failure for a start or monitor operation and the
* resource's parameters have changed since the operation).
*
* \param[in] rsc Resource that operation happened to
* \param[in] node Node that operation happened on
* \param[in] rc Actual result of operation
* \param[in] xml_op Operation history entry XML
* \param[in] data_set Current working set
*
* \return TRUE if operation history entry is expired, FALSE otherwise
*/
static bool
check_operation_expiry(pe_resource_t *rsc, pe_node_t *node, int rc,
xmlNode *xml_op, pe_working_set_t *data_set)
{
bool expired = FALSE;
bool is_last_failure = pcmk__ends_with(ID(xml_op), "_last_failure_0");
time_t last_run = 0;
guint interval_ms = 0;
int unexpired_fail_count = 0;
const char *task = crm_element_value(xml_op, XML_LRM_ATTR_TASK);
const char *clear_reason = NULL;
crm_element_value_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS, &interval_ms);
if ((rsc->failure_timeout > 0)
&& (crm_element_value_epoch(xml_op, XML_RSC_OP_LAST_CHANGE,
&last_run) == 0)) {
// Resource has a failure-timeout, and history entry has a timestamp
time_t now = get_effective_time(data_set);
time_t last_failure = 0;
// Is this particular operation history older than the failure timeout?
if ((now >= (last_run + rsc->failure_timeout))
&& !should_ignore_failure_timeout(rsc, xml_op, task, interval_ms,
is_last_failure, data_set)) {
expired = TRUE;
}
// Does the resource as a whole have an unexpired fail count?
unexpired_fail_count = pe_get_failcount(node, rsc, &last_failure,
pe_fc_effective, xml_op,
data_set);
// Update scheduler recheck time according to *last* failure
crm_trace("%s@%lld is %sexpired @%lld with unexpired_failures=%d timeout=%ds"
" last-failure@%lld",
ID(xml_op), (long long) last_run, (expired? "" : "not "),
(long long) now, unexpired_fail_count, rsc->failure_timeout,
(long long) last_failure);
last_failure += rsc->failure_timeout + 1;
if (unexpired_fail_count && (now < last_failure)) {
pe__update_recheck_time(last_failure, data_set);
}
}
if (expired) {
if (pe_get_failcount(node, rsc, NULL, pe_fc_default, xml_op, data_set)) {
// There is a fail count ignoring timeout
if (unexpired_fail_count == 0) {
// There is no fail count considering timeout
clear_reason = "it expired";
} else {
/* This operation is old, but there is an unexpired fail count.
* In a properly functioning cluster, this should only be
* possible if this operation is not a failure (otherwise the
* fail count should be expired too), so this is really just a
* failsafe.
*/
expired = FALSE;
}
} else if (is_last_failure && rsc->remote_reconnect_ms) {
/* Clear any expired last failure when reconnect interval is set,
* even if there is no fail count.
*/
clear_reason = "reconnect interval is set";
}
}
if (!expired && is_last_failure
&& should_clear_for_param_change(xml_op, task, rsc, node, data_set)) {
clear_reason = "resource parameters have changed";
}
if (clear_reason != NULL) {
// Schedule clearing of the fail count
pe_action_t *clear_op = pe__clear_failcount(rsc, node, clear_reason,
data_set);
if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)
&& rsc->remote_reconnect_ms) {
/* If we're clearing a remote connection due to a reconnect
* interval, we want to wait until any scheduled fencing
* completes.
*
* We could limit this to remote_node->details->unclean, but at
* this point, that's always true (it won't be reliable until
* after unpack_node_history() is done).
*/
crm_info("Clearing %s failure will wait until any scheduled "
"fencing of %s completes", task, rsc->id);
order_after_remote_fencing(clear_op, rsc, data_set);
}
}
if (expired && (interval_ms == 0) && pcmk__str_eq(task, CRMD_ACTION_STATUS, pcmk__str_casei)) {
switch(rc) {
case PCMK_OCF_OK:
case PCMK_OCF_NOT_RUNNING:
case PCMK_OCF_RUNNING_PROMOTED:
case PCMK_OCF_DEGRADED:
case PCMK_OCF_DEGRADED_PROMOTED:
// Don't expire probes that return these values
expired = FALSE;
break;
}
}
return expired;
}
int pe__target_rc_from_xml(xmlNode *xml_op)
{
int target_rc = 0;
const char *key = crm_element_value(xml_op, XML_ATTR_TRANSITION_KEY);
if (key == NULL) {
return -1;
}
decode_transition_key(key, NULL, NULL, NULL, &target_rc);
return target_rc;
}
static enum action_fail_response
get_action_on_fail(pe_resource_t *rsc, const char *key, const char *task, pe_working_set_t * data_set)
{
enum action_fail_response result = action_fail_recover;
pe_action_t *action = custom_action(rsc, strdup(key), task, NULL, TRUE, FALSE, data_set);
result = action->on_fail;
pe_free_action(action);
return result;
}
static void
update_resource_state(pe_resource_t * rsc, pe_node_t * node, xmlNode * xml_op, const char * task, int rc,
xmlNode * last_failure, enum action_fail_response * on_fail, pe_working_set_t * data_set)
{
gboolean clear_past_failure = FALSE;
CRM_ASSERT(rsc);
CRM_ASSERT(xml_op);
if (rc == PCMK_OCF_NOT_RUNNING) {
clear_past_failure = TRUE;
} else if (rc == PCMK_OCF_NOT_INSTALLED) {
rsc->role = RSC_ROLE_STOPPED;
} else if (pcmk__str_eq(task, CRMD_ACTION_STATUS, pcmk__str_casei)) {
if (last_failure) {
const char *op_key = get_op_key(xml_op);
const char *last_failure_key = get_op_key(last_failure);
if (pcmk__str_eq(op_key, last_failure_key, pcmk__str_casei)) {
clear_past_failure = TRUE;
}
}
if (rsc->role < RSC_ROLE_STARTED) {
set_active(rsc);
}
} else if (pcmk__str_eq(task, CRMD_ACTION_START, pcmk__str_casei)) {
rsc->role = RSC_ROLE_STARTED;
clear_past_failure = TRUE;
} else if (pcmk__str_eq(task, CRMD_ACTION_STOP, pcmk__str_casei)) {
rsc->role = RSC_ROLE_STOPPED;
clear_past_failure = TRUE;
} else if (pcmk__str_eq(task, CRMD_ACTION_PROMOTE, pcmk__str_casei)) {
rsc->role = RSC_ROLE_PROMOTED;
clear_past_failure = TRUE;
} else if (pcmk__str_eq(task, CRMD_ACTION_DEMOTE, pcmk__str_casei)) {
if (*on_fail == action_fail_demote) {
// Demote clears an error only if on-fail=demote
clear_past_failure = TRUE;
}
rsc->role = RSC_ROLE_UNPROMOTED;
} else if (pcmk__str_eq(task, CRMD_ACTION_MIGRATED, pcmk__str_casei)) {
rsc->role = RSC_ROLE_STARTED;
clear_past_failure = TRUE;
} else if (pcmk__str_eq(task, CRMD_ACTION_MIGRATE, pcmk__str_casei)) {
unpack_migrate_to_success(rsc, node, xml_op, data_set);
} else if (rsc->role < RSC_ROLE_STARTED) {
pe_rsc_trace(rsc, "%s active on %s", rsc->id, node->details->uname);
set_active(rsc);
}
/* clear any previous failure actions */
if (clear_past_failure) {
switch (*on_fail) {
case action_fail_stop:
case action_fail_fence:
case action_fail_migrate:
case action_fail_standby:
pe_rsc_trace(rsc, "%s.%s is not cleared by a completed stop",
rsc->id, fail2text(*on_fail));
break;
case action_fail_block:
case action_fail_ignore:
case action_fail_demote:
case action_fail_recover:
case action_fail_restart_container:
*on_fail = action_fail_ignore;
pe__set_next_role(rsc, RSC_ROLE_UNKNOWN, "clear past failures");
break;
case action_fail_reset_remote:
if (rsc->remote_reconnect_ms == 0) {
/* With no reconnect interval, the connection is allowed to
* start again after the remote node is fenced and
* completely stopped. (With a reconnect interval, we wait
* for the failure to be cleared entirely before attempting
* to reconnect.)
*/
*on_fail = action_fail_ignore;
pe__set_next_role(rsc, RSC_ROLE_UNKNOWN,
"clear past failures and reset remote");
}
break;
}
}
}
/*!
* \internal
* \brief Remap informational monitor results to usual values
*
* Certain OCF result codes are for providing extended information to the
* user about services that aren't yet failed but not entirely healthy either.
* These must be treated as the "normal" result by Pacemaker.
*
* \param[in] rc Actual result of a monitor action
* \param[in] xml_op Operation history XML
* \param[in] node Node that operation happened on
* \param[in] rsc Resource that operation happened to
* \param[in] data_set Cluster working set
*
* \return Result code that pacemaker should use
*
* \note If the result is remapped, and the node is not shutting down or failed,
* the operation will be recorded in the data set's list of failed
* operations, to highlight it for the user.
*/
static int
remap_monitor_rc(int rc, xmlNode *xml_op, const pe_node_t *node,
const pe_resource_t *rsc, pe_working_set_t *data_set)
{
int remapped_rc = pcmk__effective_rc(rc);
if (rc != remapped_rc) {
crm_trace("Remapping monitor result %d to %d", rc, remapped_rc);
if (!node->details->shutdown || node->details->online) {
record_failed_op(xml_op, node, rsc, data_set);
}
}
return remapped_rc;
}
static void
unpack_rsc_op(pe_resource_t *rsc, pe_node_t *node, xmlNode *xml_op,
xmlNode **last_failure, enum action_fail_response *on_fail,
pe_working_set_t *data_set)
{
int rc = 0;
int task_id = 0;
int target_rc = 0;
int status = PCMK_EXEC_UNKNOWN;
guint interval_ms = 0;
const char *task = NULL;
const char *task_key = NULL;
const char *exit_reason = NULL;
bool expired = false;
pe_resource_t *parent = rsc;
enum action_fail_response failure_strategy = action_fail_recover;
CRM_CHECK(rsc && node && xml_op, return);
target_rc = pe__target_rc_from_xml(xml_op);
task_key = get_op_key(xml_op);
task = crm_element_value(xml_op, XML_LRM_ATTR_TASK);
exit_reason = crm_element_value(xml_op, XML_LRM_ATTR_EXIT_REASON);
if (exit_reason == NULL) {
exit_reason = "";
}
crm_element_value_int(xml_op, XML_LRM_ATTR_RC, &rc);
crm_element_value_int(xml_op, XML_LRM_ATTR_CALLID, &task_id);
crm_element_value_int(xml_op, XML_LRM_ATTR_OPSTATUS, &status);
crm_element_value_ms(xml_op, XML_LRM_ATTR_INTERVAL_MS, &interval_ms);
CRM_CHECK(task != NULL, return);
CRM_CHECK((status >= PCMK_EXEC_PENDING) && (status <= PCMK_EXEC_MAX),
return);
if (!strcmp(task, CRMD_ACTION_NOTIFY) ||
!strcmp(task, CRMD_ACTION_METADATA)) {
/* safe to ignore these */
return;
}
if (!pcmk_is_set(rsc->flags, pe_rsc_unique)) {
parent = uber_parent(rsc);
}
pe_rsc_trace(rsc, "Unpacking task %s/%s (call_id=%d, status=%d, rc=%d) on %s (role=%s)",
task_key, task, task_id, status, rc, node->details->uname, role2text(rsc->role));
if (node->details->unclean) {
pe_rsc_trace(rsc, "Node %s (where %s is running) is unclean."
" Further action depends on the value of the stop's on-fail attribute",
node->details->uname, rsc->id);
}
/* It should be possible to call remap_monitor_rc() first then call
* check_operation_expiry() only if rc != target_rc, because there should
* never be a fail count without at least one unexpected result in the
* resource history. That would be more efficient by avoiding having to call
* check_operation_expiry() for expected results.
*
* However, we do have such configurations in the scheduler regression
* tests, even if it shouldn't be possible with the current code. It's
* probably a good idea anyway, but that would require updating the test
* inputs to something currently possible.
*/
if ((status != PCMK_EXEC_NOT_INSTALLED)
&& check_operation_expiry(rsc, node, rc, xml_op, data_set)) {
expired = true;
}
if (!strcmp(task, CRMD_ACTION_STATUS)) {
rc = remap_monitor_rc(rc, xml_op, node, rsc, data_set);
}
if (expired && (rc != target_rc)) {
const char *magic = crm_element_value(xml_op, XML_ATTR_TRANSITION_MAGIC);
if (interval_ms == 0) {
crm_notice("Ignoring expired %s failure on %s "
CRM_XS " actual=%d expected=%d magic=%s",
task_key, node->details->uname, rc, target_rc, magic);
goto done;
} else if(node->details->online && node->details->unclean == FALSE) {
/* Reschedule the recurring monitor. CancelXmlOp() won't work at
* this stage, so as a hacky workaround, forcibly change the restart
* digest so check_action_definition() does what we want later.
*
* @TODO We should skip this if there is a newer successful monitor.
* Also, this causes rescheduling only if the history entry
* has an op-digest (which the expire-non-blocked-failure
* scheduler regression test doesn't, but that may not be a
* realistic scenario in production).
*/
crm_notice("Rescheduling %s after failure expired on %s "
CRM_XS " actual=%d expected=%d magic=%s",
task_key, node->details->uname, rc, target_rc, magic);
crm_xml_add(xml_op, XML_LRM_ATTR_RESTART_DIGEST, "calculated-failure-timeout");
goto done;
}
}
/* If the executor reported an operation status of anything but done or
* error, consider that final. But for done or error, we know better whether
* it should be treated as a failure or not, because we know the expected
* result.
*/
if(status == PCMK_EXEC_DONE || status == PCMK_EXEC_ERROR) {
status = determine_op_status(rsc, rc, target_rc, node, xml_op, on_fail, data_set);
pe_rsc_trace(rsc, "Remapped %s status to %d", task_key, status);
}
switch (status) {
case PCMK_EXEC_CANCELLED:
// Should never happen
pe_err("Resource history contains cancellation '%s' "
"(%s of %s on %s at %s)",
ID(xml_op), task, rsc->id, node->details->uname,
last_change_str(xml_op));
goto done;
case PCMK_EXEC_PENDING:
if (!strcmp(task, CRMD_ACTION_START)) {
pe__set_resource_flags(rsc, pe_rsc_start_pending);
set_active(rsc);
} else if (!strcmp(task, CRMD_ACTION_PROMOTE)) {
rsc->role = RSC_ROLE_PROMOTED;
} else if (!strcmp(task, CRMD_ACTION_MIGRATE) && node->details->unclean) {
/* If a pending migrate_to action is out on a unclean node,
* we have to force the stop action on the target. */
const char *migrate_target = crm_element_value(xml_op, XML_LRM_ATTR_MIGRATE_TARGET);
pe_node_t *target = pe_find_node(data_set->nodes, migrate_target);
if (target) {
stop_action(rsc, target, FALSE);
}
}
if (rsc->pending_task == NULL) {
if ((interval_ms != 0) || strcmp(task, CRMD_ACTION_STATUS)) {
rsc->pending_task = strdup(task);
rsc->pending_node = node;
} else {
/* Pending probes are not printed, even if pending
* operations are requested. If someone ever requests that
* behavior, enable the below and the corresponding part of
* native.c:native_pending_task().
*/
#if 0
rsc->pending_task = strdup("probe");
rsc->pending_node = node;
#endif
}
}
goto done;
case PCMK_EXEC_DONE:
pe_rsc_trace(rsc, "%s of %s on %s completed at %s " CRM_XS " id=%s",
task, rsc->id, node->details->uname,
last_change_str(xml_op), ID(xml_op));
update_resource_state(rsc, node, xml_op, task, rc, *last_failure, on_fail, data_set);
goto done;
case PCMK_EXEC_NOT_INSTALLED:
failure_strategy = get_action_on_fail(rsc, task_key, task, data_set);
if (failure_strategy == action_fail_ignore) {
crm_warn("Cannot ignore failed %s of %s on %s: "
"Resource agent doesn't exist "
CRM_XS " status=%d rc=%d id=%s",
task, rsc->id, node->details->uname, status, rc,
ID(xml_op));
/* Also for printing it as "FAILED" by marking it as pe_rsc_failed later */
*on_fail = action_fail_migrate;
}
resource_location(parent, node, -INFINITY, "hard-error", data_set);
unpack_rsc_op_failure(rsc, node, rc, xml_op, last_failure, on_fail, data_set);
goto done;
case PCMK_EXEC_NOT_CONNECTED:
if (pe__is_guest_or_remote_node(node)
&& pcmk_is_set(node->details->remote_rsc->flags, pe_rsc_managed)) {
/* We should never get into a situation where a managed remote
* connection resource is considered OK but a resource action
* behind the connection gets a "not connected" status. But as a
* fail-safe in case a bug or unusual circumstances do lead to
* that, ensure the remote connection is considered failed.
*/
pe__set_resource_flags(node->details->remote_rsc,
pe_rsc_failed|pe_rsc_stop);
}
break; // Not done, do error handling
case PCMK_EXEC_ERROR:
case PCMK_EXEC_ERROR_HARD:
case PCMK_EXEC_ERROR_FATAL:
case PCMK_EXEC_TIMEOUT:
case PCMK_EXEC_NOT_SUPPORTED:
case PCMK_EXEC_INVALID:
break; // Not done, do error handling
/* These should only be possible in fence action results, not operation
* history, but have some handling in place as a fail-safe.
*/
case PCMK_EXEC_NO_FENCE_DEVICE:
case PCMK_EXEC_NO_SECRETS:
status = PCMK_EXEC_ERROR_HARD;
break; // Not done, do error handling
}
failure_strategy = get_action_on_fail(rsc, task_key, task, data_set);
if ((failure_strategy == action_fail_ignore)
|| (failure_strategy == action_fail_restart_container
&& !strcmp(task, CRMD_ACTION_STOP))) {
crm_warn("Pretending failed %s (%s%s%s) of %s on %s at %s "
"succeeded " CRM_XS " rc=%d id=%s",
task, services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason, rsc->id,
node->details->uname, last_change_str(xml_op), rc,
ID(xml_op));
update_resource_state(rsc, node, xml_op, task, target_rc, *last_failure,
on_fail, data_set);
crm_xml_add(xml_op, XML_ATTR_UNAME, node->details->uname);
pe__set_resource_flags(rsc, pe_rsc_failure_ignored);
record_failed_op(xml_op, node, rsc, data_set);
if ((failure_strategy == action_fail_restart_container)
&& cmp_on_fail(*on_fail, action_fail_recover) <= 0) {
*on_fail = failure_strategy;
}
} else {
unpack_rsc_op_failure(rsc, node, rc, xml_op, last_failure, on_fail,
data_set);
if (status == PCMK_EXEC_ERROR_HARD) {
do_crm_log(rc != PCMK_OCF_NOT_INSTALLED?LOG_ERR:LOG_NOTICE,
"Preventing %s from restarting on %s because "
"of hard failure (%s%s%s)" CRM_XS " rc=%d id=%s",
parent->id, node->details->uname,
services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason,
rc, ID(xml_op));
resource_location(parent, node, -INFINITY, "hard-error", data_set);
} else if (status == PCMK_EXEC_ERROR_FATAL) {
crm_err("Preventing %s from restarting anywhere because "
"of fatal failure (%s%s%s) " CRM_XS " rc=%d id=%s",
parent->id, services_ocf_exitcode_str(rc),
(*exit_reason? ": " : ""), exit_reason,
rc, ID(xml_op));
resource_location(parent, NULL, -INFINITY, "fatal-error", data_set);
}
}
done:
pe_rsc_trace(rsc, "Resource %s after %s: role=%s, next=%s",
rsc->id, task, role2text(rsc->role),
role2text(rsc->next_role));
}
static void
add_node_attrs(xmlNode *xml_obj, pe_node_t *node, bool overwrite,
pe_working_set_t *data_set)
{
const char *cluster_name = NULL;
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = RSC_ROLE_UNKNOWN,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_UNAME), strdup(node->details->uname));
g_hash_table_insert(node->details->attrs, strdup(CRM_ATTR_ID),
strdup(node->details->id));
if (pcmk__str_eq(node->details->id, data_set->dc_uuid, pcmk__str_casei)) {
data_set->dc_node = node;
node->details->is_dc = TRUE;
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_IS_DC), strdup(XML_BOOLEAN_TRUE));
} else {
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_IS_DC), strdup(XML_BOOLEAN_FALSE));
}
cluster_name = g_hash_table_lookup(data_set->config_hash, "cluster-name");
if (cluster_name) {
g_hash_table_insert(node->details->attrs, strdup(CRM_ATTR_CLUSTER_NAME),
strdup(cluster_name));
}
pe__unpack_dataset_nvpairs(xml_obj, XML_TAG_ATTR_SETS, &rule_data,
node->details->attrs, NULL, overwrite, data_set);
if (pe_node_attribute_raw(node, CRM_ATTR_SITE_NAME) == NULL) {
const char *site_name = pe_node_attribute_raw(node, "site-name");
if (site_name) {
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_SITE_NAME),
strdup(site_name));
} else if (cluster_name) {
/* Default to cluster-name if unset */
g_hash_table_insert(node->details->attrs,
strdup(CRM_ATTR_SITE_NAME),
strdup(cluster_name));
}
}
}
static GList *
extract_operations(const char *node, const char *rsc, xmlNode * rsc_entry, gboolean active_filter)
{
int counter = -1;
int stop_index = -1;
int start_index = -1;
xmlNode *rsc_op = NULL;
GList *gIter = NULL;
GList *op_list = NULL;
GList *sorted_op_list = NULL;
/* extract operations */
op_list = NULL;
sorted_op_list = NULL;
for (rsc_op = pcmk__xe_first_child(rsc_entry);
rsc_op != NULL; rsc_op = pcmk__xe_next(rsc_op)) {
if (pcmk__str_eq((const char *)rsc_op->name, XML_LRM_TAG_RSC_OP,
pcmk__str_none)) {
crm_xml_add(rsc_op, "resource", rsc);
crm_xml_add(rsc_op, XML_ATTR_UNAME, node);
op_list = g_list_prepend(op_list, rsc_op);
}
}
if (op_list == NULL) {
/* if there are no operations, there is nothing to do */
return NULL;
}
sorted_op_list = g_list_sort(op_list, sort_op_by_callid);
/* create active recurring operations as optional */
if (active_filter == FALSE) {
return sorted_op_list;
}
op_list = NULL;
calculate_active_ops(sorted_op_list, &start_index, &stop_index);
for (gIter = sorted_op_list; gIter != NULL; gIter = gIter->next) {
xmlNode *rsc_op = (xmlNode *) gIter->data;
counter++;
if (start_index < stop_index) {
crm_trace("Skipping %s: not active", ID(rsc_entry));
break;
} else if (counter < start_index) {
crm_trace("Skipping %s: old", ID(rsc_op));
continue;
}
op_list = g_list_append(op_list, rsc_op);
}
g_list_free(sorted_op_list);
return op_list;
}
GList *
find_operations(const char *rsc, const char *node, gboolean active_filter,
pe_working_set_t * data_set)
{
GList *output = NULL;
GList *intermediate = NULL;
xmlNode *tmp = NULL;
xmlNode *status = find_xml_node(data_set->input, XML_CIB_TAG_STATUS, TRUE);
pe_node_t *this_node = NULL;
xmlNode *node_state = NULL;
for (node_state = pcmk__xe_first_child(status); node_state != NULL;
node_state = pcmk__xe_next(node_state)) {
if (pcmk__str_eq((const char *)node_state->name, XML_CIB_TAG_STATE, pcmk__str_none)) {
const char *uname = crm_element_value(node_state, XML_ATTR_UNAME);
if (node != NULL && !pcmk__str_eq(uname, node, pcmk__str_casei)) {
continue;
}
this_node = pe_find_node(data_set->nodes, uname);
if(this_node == NULL) {
CRM_LOG_ASSERT(this_node != NULL);
continue;
} else if (pe__is_guest_or_remote_node(this_node)) {
determine_remote_online_status(data_set, this_node);
} else {
determine_online_status(node_state, this_node, data_set);
}
if (this_node->details->online
|| pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
/* offline nodes run no resources...
* unless stonith is enabled in which case we need to
* make sure rsc start events happen after the stonith
*/
xmlNode *lrm_rsc = NULL;
tmp = find_xml_node(node_state, XML_CIB_TAG_LRM, FALSE);
tmp = find_xml_node(tmp, XML_LRM_TAG_RESOURCES, FALSE);
for (lrm_rsc = pcmk__xe_first_child(tmp); lrm_rsc != NULL;
lrm_rsc = pcmk__xe_next(lrm_rsc)) {
if (pcmk__str_eq((const char *)lrm_rsc->name,
XML_LRM_TAG_RESOURCE, pcmk__str_none)) {
const char *rsc_id = crm_element_value(lrm_rsc, XML_ATTR_ID);
if (rsc != NULL && !pcmk__str_eq(rsc_id, rsc, pcmk__str_casei)) {
continue;
}
intermediate = extract_operations(uname, rsc_id, lrm_rsc, active_filter);
output = g_list_concat(output, intermediate);
}
}
}
}
}
return output;
}
diff --git a/lib/pengine/utils.c b/lib/pengine/utils.c
index c5eda3898e..07753e173a 100644
--- a/lib/pengine/utils.c
+++ b/lib/pengine/utils.c
@@ -1,2570 +1,2571 @@
/*
* Copyright 2004-2021 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/crm.h>
#include <crm/msg_xml.h>
#include <crm/common/xml.h>
#include <crm/common/xml_internal.h>
#include <crm/common/util.h>
#include <glib.h>
#include <stdbool.h>
#include <crm/pengine/rules.h>
#include <crm/pengine/internal.h>
#include "pe_status_private.h"
extern bool pcmk__is_daemon;
void print_str_str(gpointer key, gpointer value, gpointer user_data);
gboolean ghash_free_str_str(gpointer key, gpointer value, gpointer user_data);
static void unpack_operation(pe_action_t * action, xmlNode * xml_obj, pe_resource_t * container,
pe_working_set_t * data_set, guint interval_ms);
static xmlNode *find_rsc_op_entry_helper(pe_resource_t * rsc, const char *key,
gboolean include_disabled);
#if ENABLE_VERSIONED_ATTRS
pe_rsc_action_details_t *
pe_rsc_action_details(pe_action_t *action)
{
pe_rsc_action_details_t *details;
CRM_CHECK(action != NULL, return NULL);
if (action->action_details == NULL) {
action->action_details = calloc(1, sizeof(pe_rsc_action_details_t));
CRM_CHECK(action->action_details != NULL, return NULL);
}
details = (pe_rsc_action_details_t *) action->action_details;
if (details->versioned_parameters == NULL) {
details->versioned_parameters = create_xml_node(NULL,
XML_TAG_OP_VER_ATTRS);
}
if (details->versioned_meta == NULL) {
details->versioned_meta = create_xml_node(NULL, XML_TAG_OP_VER_META);
}
return details;
}
static void
pe_free_rsc_action_details(pe_action_t *action)
{
pe_rsc_action_details_t *details;
if ((action == NULL) || (action->action_details == NULL)) {
return;
}
details = (pe_rsc_action_details_t *) action->action_details;
if (details->versioned_parameters) {
free_xml(details->versioned_parameters);
}
if (details->versioned_meta) {
free_xml(details->versioned_meta);
}
action->action_details = NULL;
}
#endif
/*!
* \internal
* \brief Check whether we can fence a particular node
*
* \param[in] data_set Working set for cluster
* \param[in] node Name of node to check
*
* \return true if node can be fenced, false otherwise
*/
bool
pe_can_fence(pe_working_set_t *data_set, pe_node_t *node)
{
if (pe__is_guest_node(node)) {
/* Guest nodes are fenced by stopping their container resource. We can
* do that if the container's host is either online or fenceable.
*/
pe_resource_t *rsc = node->details->remote_rsc->container;
for (GList *n = rsc->running_on; n != NULL; n = n->next) {
pe_node_t *container_node = n->data;
if (!container_node->details->online
&& !pe_can_fence(data_set, container_node)) {
return false;
}
}
return true;
} else if (!pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
return false; /* Turned off */
} else if (!pcmk_is_set(data_set->flags, pe_flag_have_stonith_resource)) {
return false; /* No devices */
} else if (pcmk_is_set(data_set->flags, pe_flag_have_quorum)) {
return true;
} else if (data_set->no_quorum_policy == no_quorum_ignore) {
return true;
} else if(node == NULL) {
return false;
} else if(node->details->online) {
crm_notice("We can fence %s without quorum because they're in our membership", node->details->uname);
return true;
}
crm_trace("Cannot fence %s", node->details->uname);
return false;
}
/*!
* \internal
* \brief Copy a node object
*
* \param[in] this_node Node object to copy
*
* \return Newly allocated shallow copy of this_node
* \note This function asserts on errors and is guaranteed to return non-NULL.
*/
pe_node_t *
pe__copy_node(const pe_node_t *this_node)
{
pe_node_t *new_node = NULL;
CRM_ASSERT(this_node != NULL);
new_node = calloc(1, sizeof(pe_node_t));
CRM_ASSERT(new_node != NULL);
new_node->rsc_discover_mode = this_node->rsc_discover_mode;
new_node->weight = this_node->weight;
new_node->fixed = this_node->fixed;
new_node->details = this_node->details;
return new_node;
}
/* any node in list1 or list2 and not in the other gets a score of -INFINITY */
void
node_list_exclude(GHashTable * hash, GList *list, gboolean merge_scores)
{
GHashTable *result = hash;
pe_node_t *other_node = NULL;
GList *gIter = list;
GHashTableIter iter;
pe_node_t *node = NULL;
g_hash_table_iter_init(&iter, hash);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
other_node = pe_find_node_id(list, node->details->id);
if (other_node == NULL) {
node->weight = -INFINITY;
} else if (merge_scores) {
node->weight = pe__add_scores(node->weight, other_node->weight);
}
}
for (; gIter != NULL; gIter = gIter->next) {
pe_node_t *node = (pe_node_t *) gIter->data;
other_node = pe_hash_table_lookup(result, node->details->id);
if (other_node == NULL) {
pe_node_t *new_node = pe__copy_node(node);
new_node->weight = -INFINITY;
g_hash_table_insert(result, (gpointer) new_node->details->id, new_node);
}
}
}
/*!
* \internal
* \brief Create a node hash table from a node list
*
* \param[in] list Node list
*
* \return Hash table equivalent of node list
*/
GHashTable *
pe__node_list2table(GList *list)
{
GHashTable *result = NULL;
result = pcmk__strkey_table(NULL, free);
for (GList *gIter = list; gIter != NULL; gIter = gIter->next) {
pe_node_t *new_node = pe__copy_node((pe_node_t *) gIter->data);
g_hash_table_insert(result, (gpointer) new_node->details->id, new_node);
}
return result;
}
gint
sort_node_uname(gconstpointer a, gconstpointer b)
{
return pcmk__numeric_strcasecmp(((const pe_node_t *) a)->details->uname,
((const pe_node_t *) b)->details->uname);
}
/*!
* \internal
* \brief Output node weights to stdout
*
* \param[in] rsc Use allowed nodes for this resource
* \param[in] comment Text description to prefix lines with
* \param[in] nodes If rsc is not specified, use these nodes
*/
static void
pe__output_node_weights(pe_resource_t *rsc, const char *comment,
GHashTable *nodes, pe_working_set_t *data_set)
{
pcmk__output_t *out = data_set->priv;
char score[128]; // Stack-allocated since this is called frequently
// Sort the nodes so the output is consistent for regression tests
GList *list = g_list_sort(g_hash_table_get_values(nodes), sort_node_uname);
for (GList *gIter = list; gIter != NULL; gIter = gIter->next) {
pe_node_t *node = (pe_node_t *) gIter->data;
score2char_stack(node->weight, score, sizeof(score));
out->message(out, "node-weight", rsc, comment, node->details->uname, score);
}
g_list_free(list);
}
/*!
* \internal
* \brief Log node weights at trace level
*
* \param[in] file Caller's filename
* \param[in] function Caller's function name
* \param[in] line Caller's line number
* \param[in] rsc Use allowed nodes for this resource
* \param[in] comment Text description to prefix lines with
* \param[in] nodes If rsc is not specified, use these nodes
*/
static void
pe__log_node_weights(const char *file, const char *function, int line,
pe_resource_t *rsc, const char *comment, GHashTable *nodes)
{
GHashTableIter iter;
pe_node_t *node = NULL;
char score[128]; // Stack-allocated since this is called frequently
// Don't waste time if we're not tracing at this point
pcmk__log_else(LOG_TRACE, return);
g_hash_table_iter_init(&iter, nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **) &node)) {
score2char_stack(node->weight, score, sizeof(score));
if (rsc) {
qb_log_from_external_source(function, file,
"%s: %s allocation score on %s: %s",
LOG_TRACE, line, 0,
comment, rsc->id,
node->details->uname, score);
} else {
qb_log_from_external_source(function, file, "%s: %s = %s",
LOG_TRACE, line, 0,
comment, node->details->uname,
score);
}
}
}
/*!
* \internal
* \brief Log or output node weights
*
* \param[in] file Caller's filename
* \param[in] function Caller's function name
* \param[in] line Caller's line number
* \param[in] to_log Log if true, otherwise output
* \param[in] rsc Use allowed nodes for this resource
* \param[in] comment Text description to prefix lines with
* \param[in] nodes Use these nodes
*/
void
pe__show_node_weights_as(const char *file, const char *function, int line,
bool to_log, pe_resource_t *rsc, const char *comment,
GHashTable *nodes, pe_working_set_t *data_set)
{
if (rsc != NULL && pcmk_is_set(rsc->flags, pe_rsc_orphan)) {
// Don't show allocation scores for orphans
return;
}
if (nodes == NULL) {
// Nothing to show
return;
}
if (to_log) {
pe__log_node_weights(file, function, line, rsc, comment, nodes);
} else {
pe__output_node_weights(rsc, comment, nodes, data_set);
}
// If this resource has children, repeat recursively for each
if (rsc && rsc->children) {
for (GList *gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
pe_resource_t *child = (pe_resource_t *) gIter->data;
pe__show_node_weights_as(file, function, line, to_log, child,
comment, child->allowed_nodes, data_set);
}
}
}
gint
sort_rsc_index(gconstpointer a, gconstpointer b)
{
const pe_resource_t *resource1 = (const pe_resource_t *)a;
const pe_resource_t *resource2 = (const pe_resource_t *)b;
if (a == NULL && b == NULL) {
return 0;
}
if (a == NULL) {
return 1;
}
if (b == NULL) {
return -1;
}
if (resource1->sort_index > resource2->sort_index) {
return -1;
}
if (resource1->sort_index < resource2->sort_index) {
return 1;
}
return 0;
}
gint
sort_rsc_priority(gconstpointer a, gconstpointer b)
{
const pe_resource_t *resource1 = (const pe_resource_t *)a;
const pe_resource_t *resource2 = (const pe_resource_t *)b;
if (a == NULL && b == NULL) {
return 0;
}
if (a == NULL) {
return 1;
}
if (b == NULL) {
return -1;
}
if (resource1->priority > resource2->priority) {
return -1;
}
if (resource1->priority < resource2->priority) {
return 1;
}
return 0;
}
static enum pe_quorum_policy
effective_quorum_policy(pe_resource_t *rsc, pe_working_set_t *data_set)
{
enum pe_quorum_policy policy = data_set->no_quorum_policy;
if (pcmk_is_set(data_set->flags, pe_flag_have_quorum)) {
policy = no_quorum_ignore;
} else if (data_set->no_quorum_policy == no_quorum_demote) {
switch (rsc->role) {
case RSC_ROLE_PROMOTED:
case RSC_ROLE_UNPROMOTED:
if (rsc->next_role > RSC_ROLE_UNPROMOTED) {
pe__set_next_role(rsc, RSC_ROLE_UNPROMOTED,
"no-quorum-policy=demote");
}
policy = no_quorum_ignore;
break;
default:
policy = no_quorum_stop;
break;
}
}
return policy;
}
static void
add_singleton(pe_working_set_t *data_set, pe_action_t *action)
{
if (data_set->singletons == NULL) {
data_set->singletons = pcmk__strkey_table(NULL, NULL);
}
g_hash_table_insert(data_set->singletons, action->uuid, action);
}
static pe_action_t *
lookup_singleton(pe_working_set_t *data_set, const char *action_uuid)
{
if (data_set->singletons == NULL) {
return NULL;
}
return g_hash_table_lookup(data_set->singletons, action_uuid);
}
/*!
* \internal
* \brief Find an existing action that matches arguments
*
* \param[in] key Action key to match
* \param[in] rsc Resource to match (if any)
* \param[in] node Node to match (if any)
* \param[in] data_set Cluster working set
*
* \return Existing action that matches arguments (or NULL if none)
*/
static pe_action_t *
find_existing_action(const char *key, pe_resource_t *rsc, pe_node_t *node,
pe_working_set_t *data_set)
{
GList *matches = NULL;
pe_action_t *action = NULL;
/* When rsc is NULL, it would be quicker to check data_set->singletons,
* but checking all data_set->actions takes the node into account.
*/
matches = find_actions(((rsc == NULL)? data_set->actions : rsc->actions),
key, node);
if (matches == NULL) {
return NULL;
}
CRM_LOG_ASSERT(!pcmk__list_of_multiple(matches));
action = matches->data;
g_list_free(matches);
return action;
}
/*!
* \internal
* \brief Create a new action object
*
* \param[in] key Action key
* \param[in] task Action name
* \param[in] rsc Resource that action is for (if any)
* \param[in] node Node that action is on (if any)
* \param[in] optional Whether action should be considered optional
* \param[in] for_graph Whether action should be recorded in transition graph
* \param[in] data_set Cluster working set
*
* \return Newly allocated action
* \note This function takes ownership of \p key. It is the caller's
* responsibility to free the return value with pe_free_action().
*/
static pe_action_t *
new_action(char *key, const char *task, pe_resource_t *rsc, pe_node_t *node,
bool optional, bool for_graph, pe_working_set_t *data_set)
{
pe_action_t *action = calloc(1, sizeof(pe_action_t));
CRM_ASSERT(action != NULL);
action->rsc = rsc;
action->task = strdup(task); CRM_ASSERT(action->task != NULL);
action->uuid = key;
action->extra = pcmk__strkey_table(free, free);
action->meta = pcmk__strkey_table(free, free);
if (node) {
action->node = pe__copy_node(node);
}
if (pcmk__str_eq(task, CRM_OP_LRM_DELETE, pcmk__str_casei)) {
// Resource history deletion for a node can be done on the DC
pe__set_action_flags(action, pe_action_dc);
}
pe__set_action_flags(action, pe_action_runnable);
if (optional) {
pe__set_action_flags(action, pe_action_optional);
} else {
pe__clear_action_flags(action, pe_action_optional);
}
if (rsc != NULL) {
guint interval_ms = 0;
action->op_entry = find_rsc_op_entry_helper(rsc, key, TRUE);
parse_op_key(key, NULL, NULL, &interval_ms);
unpack_operation(action, action->op_entry, rsc->container, data_set,
interval_ms);
}
if (for_graph) {
pe_rsc_trace(rsc, "Created %s action %d (%s): %s for %s on %s",
(optional? "optional" : "required"),
data_set->action_id, key, task,
((rsc == NULL)? "no resource" : rsc->id),
((node == NULL)? "no node" : node->details->uname));
action->id = data_set->action_id++;
data_set->actions = g_list_prepend(data_set->actions, action);
if (rsc == NULL) {
add_singleton(data_set, action);
} else {
rsc->actions = g_list_prepend(rsc->actions, action);
}
}
return action;
}
/*!
* \internal
* \brief Evaluate node attribute values for an action
*
* \param[in] action Action to unpack attributes for
* \param[in] data_set Cluster working set
*/
static void
unpack_action_node_attributes(pe_action_t *action, pe_working_set_t *data_set)
{
if (!pcmk_is_set(action->flags, pe_action_have_node_attrs)
&& (action->op_entry != NULL)) {
pe_rule_eval_data_t rule_data = {
.node_hash = action->node->details->attrs,
.role = RSC_ROLE_UNKNOWN,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
pe__set_action_flags(action, pe_action_have_node_attrs);
pe__unpack_dataset_nvpairs(action->op_entry, XML_TAG_ATTR_SETS,
&rule_data, action->extra, NULL,
FALSE, data_set);
}
}
/*!
* \internal
* \brief Update an action's optional flag
*
* \param[in] action Action to update
* \param[in] optional Requested optional status
*/
static void
update_action_optional(pe_action_t *action, gboolean optional)
{
// Force a non-recurring action to be optional if its resource is unmanaged
if ((action->rsc != NULL) && (action->node != NULL)
&& !pcmk_is_set(action->flags, pe_action_pseudo)
&& !pcmk_is_set(action->rsc->flags, pe_rsc_managed)
&& (g_hash_table_lookup(action->meta,
XML_LRM_ATTR_INTERVAL_MS) == NULL)) {
pe_rsc_debug(action->rsc, "%s on %s is optional (%s is unmanaged)",
action->uuid, action->node->details->uname,
action->rsc->id);
pe__set_action_flags(action, pe_action_optional);
// We shouldn't clear runnable here because ... something
// Otherwise require the action if requested
} else if (!optional) {
pe__clear_action_flags(action, pe_action_optional);
}
}
/*!
* \internal
* \brief Update a resource action's runnable flag
*
* \param[in] action Action to update
* \param[in] for_graph Whether action should be recorded in transition graph
* \param[in] data_set Cluster working set
*
* \note This may also schedule fencing if a stop is unrunnable.
*/
static void
update_resource_action_runnable(pe_action_t *action, bool for_graph,
pe_working_set_t *data_set)
{
if (pcmk_is_set(action->flags, pe_action_pseudo)) {
return;
}
if (action->node == NULL) {
pe_rsc_trace(action->rsc, "%s is unrunnable (unallocated)",
action->uuid);
pe__clear_action_flags(action, pe_action_runnable);
} else if (!pcmk_is_set(action->flags, pe_action_dc)
&& !(action->node->details->online)
&& (!pe__is_guest_node(action->node)
|| action->node->details->remote_requires_reset)) {
pe__clear_action_flags(action, pe_action_runnable);
do_crm_log((for_graph? LOG_WARNING: LOG_TRACE),
"%s on %s is unrunnable (node is offline)",
action->uuid, action->node->details->uname);
if (pcmk_is_set(action->rsc->flags, pe_rsc_managed)
&& for_graph
&& pcmk__str_eq(action->task, CRMD_ACTION_STOP, pcmk__str_casei)
&& !(action->node->details->unclean)) {
pe_fence_node(data_set, action->node, "stop is unrunnable", false);
}
} else if (!pcmk_is_set(action->flags, pe_action_dc)
&& action->node->details->pending) {
pe__clear_action_flags(action, pe_action_runnable);
do_crm_log((for_graph? LOG_WARNING: LOG_TRACE),
"Action %s on %s is unrunnable (node is pending)",
action->uuid, action->node->details->uname);
} else if (action->needs == rsc_req_nothing) {
pe_action_set_reason(action, NULL, TRUE);
if (pe__is_guest_node(action->node)
&& !pe_can_fence(data_set, action->node)) {
/* An action that requires nothing usually does not require any
* fencing in order to be runnable. However, there is an exception:
* such an action cannot be completed if it is on a guest node whose
* host is unclean and cannot be fenced.
*/
pe_rsc_debug(action->rsc, "%s on %s is unrunnable "
"(node's host cannot be fenced)",
action->uuid, action->node->details->uname);
pe__clear_action_flags(action, pe_action_runnable);
} else {
pe_rsc_trace(action->rsc,
"%s on %s does not require fencing or quorum",
action->uuid, action->node->details->uname);
pe__set_action_flags(action, pe_action_runnable);
}
} else {
switch (effective_quorum_policy(action->rsc, data_set)) {
case no_quorum_stop:
pe_rsc_debug(action->rsc, "%s on %s is unrunnable (no quorum)",
action->uuid, action->node->details->uname);
pe__clear_action_flags(action, pe_action_runnable);
pe_action_set_reason(action, "no quorum", true);
break;
case no_quorum_freeze:
if (!action->rsc->fns->active(action->rsc, TRUE)
|| (action->rsc->next_role > action->rsc->role)) {
pe_rsc_debug(action->rsc,
"%s on %s is unrunnable (no quorum)",
action->uuid, action->node->details->uname);
pe__clear_action_flags(action, pe_action_runnable);
pe_action_set_reason(action, "quorum freeze", true);
}
break;
default:
//pe_action_set_reason(action, NULL, TRUE);
pe__set_action_flags(action, pe_action_runnable);
break;
}
}
}
/*!
* \internal
* \brief Update a resource object's flags for a new action on it
*
* \param[in] rsc Resource that action is for (if any)
* \param[in] action New action
*/
static void
update_resource_flags_for_action(pe_resource_t *rsc, pe_action_t *action)
{
/* @COMPAT pe_rsc_starting and pe_rsc_stopping are not actually used
* within Pacemaker, and should be deprecated and eventually removed
*/
if (pcmk__str_eq(action->task, CRMD_ACTION_STOP, pcmk__str_casei)) {
pe__set_resource_flags(rsc, pe_rsc_stopping);
} else if (pcmk__str_eq(action->task, CRMD_ACTION_START, pcmk__str_casei)) {
if (pcmk_is_set(action->flags, pe_action_runnable)) {
pe__set_resource_flags(rsc, pe_rsc_starting);
} else {
pe__clear_resource_flags(rsc, pe_rsc_starting);
}
}
}
/*!
* \brief Create or update an action object
*
* \param[in] rsc Resource that action is for (if any)
* \param[in] key Action key (must be non-NULL)
* \param[in] task Action name (must be non-NULL)
* \param[in] on_node Node that action is on (if any)
* \param[in] optional Whether action should be considered optional
* \param[in] save_action Whether action should be recorded in transition graph
* \param[in] data_set Cluster working set
*
* \return Action object corresponding to arguments
* \note This function takes ownership of (and might free) \p key. If
* \p save_action is true, \p data_set will own the returned action,
* otherwise it is the caller's responsibility to free the return value
* with pe_free_action().
*/
pe_action_t *
custom_action(pe_resource_t *rsc, char *key, const char *task,
pe_node_t *on_node, gboolean optional, gboolean save_action,
pe_working_set_t *data_set)
{
pe_action_t *action = NULL;
CRM_ASSERT((key != NULL) && (task != NULL) && (data_set != NULL));
if (save_action) {
action = find_existing_action(key, rsc, on_node, data_set);
}
if (action == NULL) {
action = new_action(key, task, rsc, on_node, optional, save_action,
data_set);
} else {
free(key);
}
update_action_optional(action, optional);
if (rsc != NULL) {
if (action->node != NULL) {
unpack_action_node_attributes(action, data_set);
}
update_resource_action_runnable(action, save_action, data_set);
if (save_action) {
update_resource_flags_for_action(rsc, action);
}
}
return action;
}
static bool
valid_stop_on_fail(const char *value)
{
return !pcmk__strcase_any_of(value, "standby", "demote", "stop", NULL);
}
static const char *
unpack_operation_on_fail(pe_action_t * action)
{
const char *name = NULL;
const char *role = NULL;
const char *on_fail = NULL;
const char *interval_spec = NULL;
const char *value = g_hash_table_lookup(action->meta, XML_OP_ATTR_ON_FAIL);
if (pcmk__str_eq(action->task, CRMD_ACTION_STOP, pcmk__str_casei)
&& !valid_stop_on_fail(value)) {
pcmk__config_err("Resetting '" XML_OP_ATTR_ON_FAIL "' for %s stop "
"action to default value because '%s' is not "
"allowed for stop", action->rsc->id, value);
return NULL;
} else if (pcmk__str_eq(action->task, CRMD_ACTION_DEMOTE, pcmk__str_casei) && !value) {
// demote on_fail defaults to monitor value for promoted role if present
xmlNode *operation = NULL;
CRM_CHECK(action->rsc != NULL, return NULL);
for (operation = pcmk__xe_first_child(action->rsc->ops_xml);
(operation != NULL) && (value == NULL);
operation = pcmk__xe_next(operation)) {
bool enabled = false;
if (!pcmk__str_eq((const char *)operation->name, "op", pcmk__str_none)) {
continue;
}
name = crm_element_value(operation, "name");
role = crm_element_value(operation, "role");
on_fail = crm_element_value(operation, XML_OP_ATTR_ON_FAIL);
interval_spec = crm_element_value(operation, XML_LRM_ATTR_INTERVAL);
if (!on_fail) {
continue;
} else if (pcmk__xe_get_bool_attr(operation, "enabled", &enabled) == pcmk_rc_ok && !enabled) {
continue;
} else if (!pcmk__str_eq(name, "monitor", pcmk__str_casei)
|| !pcmk__strcase_any_of(role, RSC_ROLE_PROMOTED_S,
RSC_ROLE_PROMOTED_LEGACY_S,
NULL)) {
continue;
} else if (crm_parse_interval_spec(interval_spec) == 0) {
continue;
} else if (pcmk__str_eq(on_fail, "demote", pcmk__str_casei)) {
continue;
}
value = on_fail;
}
} else if (pcmk__str_eq(action->task, CRM_OP_LRM_DELETE, pcmk__str_casei)) {
value = "ignore";
} else if (pcmk__str_eq(value, "demote", pcmk__str_casei)) {
name = crm_element_value(action->op_entry, "name");
role = crm_element_value(action->op_entry, "role");
interval_spec = crm_element_value(action->op_entry,
XML_LRM_ATTR_INTERVAL);
if (!pcmk__str_eq(name, CRMD_ACTION_PROMOTE, pcmk__str_casei)
&& (!pcmk__str_eq(name, CRMD_ACTION_STATUS, pcmk__str_casei)
|| !pcmk__strcase_any_of(role, RSC_ROLE_PROMOTED_S,
RSC_ROLE_PROMOTED_LEGACY_S, NULL)
|| (crm_parse_interval_spec(interval_spec) == 0))) {
pcmk__config_err("Resetting '" XML_OP_ATTR_ON_FAIL "' for %s %s "
"action to default value because 'demote' is not "
"allowed for it", action->rsc->id, name);
return NULL;
}
}
return value;
}
static xmlNode *
find_min_interval_mon(pe_resource_t * rsc, gboolean include_disabled)
{
guint interval_ms = 0;
guint min_interval_ms = G_MAXUINT;
const char *name = NULL;
const char *interval_spec = NULL;
xmlNode *op = NULL;
xmlNode *operation = NULL;
for (operation = pcmk__xe_first_child(rsc->ops_xml);
operation != NULL;
operation = pcmk__xe_next(operation)) {
if (pcmk__str_eq((const char *)operation->name, "op", pcmk__str_none)) {
bool enabled = false;
name = crm_element_value(operation, "name");
interval_spec = crm_element_value(operation, XML_LRM_ATTR_INTERVAL);
if (!include_disabled && pcmk__xe_get_bool_attr(operation, "enabled", &enabled) == pcmk_rc_ok &&
!enabled) {
continue;
}
if (!pcmk__str_eq(name, RSC_STATUS, pcmk__str_casei)) {
continue;
}
interval_ms = crm_parse_interval_spec(interval_spec);
if (interval_ms && (interval_ms < min_interval_ms)) {
min_interval_ms = interval_ms;
op = operation;
}
}
}
return op;
}
static int
unpack_start_delay(const char *value, GHashTable *meta)
{
int start_delay = 0;
if (value != NULL) {
start_delay = crm_get_msec(value);
if (start_delay < 0) {
start_delay = 0;
}
if (meta) {
g_hash_table_replace(meta, strdup(XML_OP_ATTR_START_DELAY),
pcmk__itoa(start_delay));
}
}
return start_delay;
}
// true if value contains valid, non-NULL interval origin for recurring op
static bool
unpack_interval_origin(const char *value, xmlNode *xml_obj, guint interval_ms,
crm_time_t *now, long long *start_delay)
{
long long result = 0;
guint interval_sec = interval_ms / 1000;
crm_time_t *origin = NULL;
// Ignore unspecified values and non-recurring operations
if ((value == NULL) || (interval_ms == 0) || (now == NULL)) {
return false;
}
// Parse interval origin from text
origin = crm_time_new(value);
if (origin == NULL) {
pcmk__config_err("Ignoring '" XML_OP_ATTR_ORIGIN "' for operation "
"'%s' because '%s' is not valid",
(ID(xml_obj)? ID(xml_obj) : "(missing ID)"), value);
return false;
}
// Get seconds since origin (negative if origin is in the future)
result = crm_time_get_seconds(now) - crm_time_get_seconds(origin);
crm_time_free(origin);
// Calculate seconds from closest interval to now
result = result % interval_sec;
// Calculate seconds remaining until next interval
result = ((result <= 0)? 0 : interval_sec) - result;
crm_info("Calculated a start delay of %llds for operation '%s'",
result,
(ID(xml_obj)? ID(xml_obj) : "(unspecified)"));
if (start_delay != NULL) {
*start_delay = result * 1000; // milliseconds
}
return true;
}
static int
unpack_timeout(const char *value)
{
int timeout_ms = crm_get_msec(value);
if (timeout_ms < 0) {
timeout_ms = crm_get_msec(CRM_DEFAULT_OP_TIMEOUT_S);
}
return timeout_ms;
}
int
pe_get_configured_timeout(pe_resource_t *rsc, const char *action, pe_working_set_t *data_set)
{
xmlNode *child = NULL;
GHashTable *action_meta = NULL;
const char *timeout_spec = NULL;
int timeout_ms = 0;
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = RSC_ROLE_UNKNOWN,
.now = data_set->now,
.match_data = NULL,
.rsc_data = NULL,
.op_data = NULL
};
for (child = first_named_child(rsc->ops_xml, XML_ATTR_OP);
child != NULL; child = crm_next_same_xml(child)) {
if (pcmk__str_eq(action, crm_element_value(child, XML_NVPAIR_ATTR_NAME),
pcmk__str_casei)) {
timeout_spec = crm_element_value(child, XML_ATTR_TIMEOUT);
break;
}
}
if (timeout_spec == NULL && data_set->op_defaults) {
action_meta = pcmk__strkey_table(free, free);
pe__unpack_dataset_nvpairs(data_set->op_defaults, XML_TAG_META_SETS,
&rule_data, action_meta, NULL, FALSE, data_set);
timeout_spec = g_hash_table_lookup(action_meta, XML_ATTR_TIMEOUT);
}
// @TODO check meta-attributes (including versioned meta-attributes)
// @TODO maybe use min-interval monitor timeout as default for monitors
timeout_ms = crm_get_msec(timeout_spec);
if (timeout_ms < 0) {
timeout_ms = crm_get_msec(CRM_DEFAULT_OP_TIMEOUT_S);
}
if (action_meta != NULL) {
g_hash_table_destroy(action_meta);
}
return timeout_ms;
}
#if ENABLE_VERSIONED_ATTRS
static void
unpack_versioned_meta(xmlNode *versioned_meta, xmlNode *xml_obj,
guint interval_ms, crm_time_t *now)
{
xmlNode *attrs = NULL;
xmlNode *attr = NULL;
for (attrs = pcmk__xe_first_child(versioned_meta); attrs != NULL;
attrs = pcmk__xe_next(attrs)) {
for (attr = pcmk__xe_first_child(attrs); attr != NULL;
attr = pcmk__xe_next(attr)) {
const char *name = crm_element_value(attr, XML_NVPAIR_ATTR_NAME);
const char *value = crm_element_value(attr, XML_NVPAIR_ATTR_VALUE);
if (pcmk__str_eq(name, XML_OP_ATTR_START_DELAY, pcmk__str_casei)) {
int start_delay = unpack_start_delay(value, NULL);
crm_xml_add_int(attr, XML_NVPAIR_ATTR_VALUE, start_delay);
} else if (pcmk__str_eq(name, XML_OP_ATTR_ORIGIN, pcmk__str_casei)) {
long long start_delay = 0;
if (unpack_interval_origin(value, xml_obj, interval_ms, now,
&start_delay)) {
crm_xml_add(attr, XML_NVPAIR_ATTR_NAME,
XML_OP_ATTR_START_DELAY);
crm_xml_add_ll(attr, XML_NVPAIR_ATTR_VALUE, start_delay);
}
} else if (pcmk__str_eq(name, XML_ATTR_TIMEOUT, pcmk__str_casei)) {
int timeout_ms = unpack_timeout(value);
crm_xml_add_int(attr, XML_NVPAIR_ATTR_VALUE, timeout_ms);
}
}
}
}
#endif
/*!
* \brief Unpack operation XML into an action structure
*
* Unpack an operation's meta-attributes (normalizing the interval, timeout,
* and start delay values as integer milliseconds), requirements, and
* failure policy.
*
* \param[in,out] action Action to unpack into
* \param[in] xml_obj Operation XML (or NULL if all defaults)
* \param[in] container Resource that contains affected resource, if any
* \param[in] data_set Cluster state
* \param[in] interval_ms How frequently to perform the operation
*/
static void
unpack_operation(pe_action_t * action, xmlNode * xml_obj, pe_resource_t * container,
pe_working_set_t * data_set, guint interval_ms)
{
int timeout_ms = 0;
const char *value = NULL;
- bool is_probe = pcmk__str_eq(action->task, RSC_STATUS, pcmk__str_casei)
- && (interval_ms == 0);
+ bool is_probe = false;
#if ENABLE_VERSIONED_ATTRS
pe_rsc_action_details_t *rsc_details = NULL;
#endif
pe_rsc_eval_data_t rsc_rule_data = {
.standard = crm_element_value(action->rsc->xml, XML_AGENT_ATTR_CLASS),
.provider = crm_element_value(action->rsc->xml, XML_AGENT_ATTR_PROVIDER),
.agent = crm_element_value(action->rsc->xml, XML_EXPR_ATTR_TYPE)
};
pe_op_eval_data_t op_rule_data = {
.op_name = action->task,
.interval = interval_ms
};
pe_rule_eval_data_t rule_data = {
.node_hash = NULL,
.role = RSC_ROLE_UNKNOWN,
.now = data_set->now,
.match_data = NULL,
.rsc_data = &rsc_rule_data,
.op_data = &op_rule_data
};
CRM_CHECK(action && action->rsc, return);
+ is_probe = pcmk_is_probe(action->task, interval_ms);
+
// Cluster-wide <op_defaults> <meta_attributes>
pe__unpack_dataset_nvpairs(data_set->op_defaults, XML_TAG_META_SETS, &rule_data,
action->meta, NULL, FALSE, data_set);
// Determine probe default timeout differently
if (is_probe) {
xmlNode *min_interval_mon = find_min_interval_mon(action->rsc, FALSE);
if (min_interval_mon) {
value = crm_element_value(min_interval_mon, XML_ATTR_TIMEOUT);
if (value) {
crm_trace("\t%s: Setting default timeout to minimum-interval "
"monitor's timeout '%s'", action->uuid, value);
g_hash_table_replace(action->meta, strdup(XML_ATTR_TIMEOUT),
strdup(value));
}
}
}
if (xml_obj) {
xmlAttrPtr xIter = NULL;
// <op> <meta_attributes> take precedence over defaults
pe__unpack_dataset_nvpairs(xml_obj, XML_TAG_META_SETS, &rule_data,
action->meta, NULL, TRUE, data_set);
#if ENABLE_VERSIONED_ATTRS
rsc_details = pe_rsc_action_details(action);
pe_eval_versioned_attributes(data_set->input, xml_obj,
XML_TAG_ATTR_SETS, &rule_data,
rsc_details->versioned_parameters,
NULL);
pe_eval_versioned_attributes(data_set->input, xml_obj,
XML_TAG_META_SETS, &rule_data,
rsc_details->versioned_meta,
NULL);
#endif
/* Anything set as an <op> XML property has highest precedence.
* This ensures we use the name and interval from the <op> tag.
*/
for (xIter = xml_obj->properties; xIter; xIter = xIter->next) {
const char *prop_name = (const char *)xIter->name;
const char *prop_value = crm_element_value(xml_obj, prop_name);
g_hash_table_replace(action->meta, strdup(prop_name), strdup(prop_value));
}
}
g_hash_table_remove(action->meta, "id");
// Normalize interval to milliseconds
if (interval_ms > 0) {
g_hash_table_replace(action->meta, strdup(XML_LRM_ATTR_INTERVAL),
crm_strdup_printf("%u", interval_ms));
} else {
g_hash_table_remove(action->meta, XML_LRM_ATTR_INTERVAL);
}
/*
* Timeout order of precedence:
* 1. pcmk_monitor_timeout (if rsc has pcmk_ra_cap_fence_params
* and task is start or a probe; pcmk_monitor_timeout works
* by default for a recurring monitor)
* 2. explicit op timeout on the primitive
* 3. default op timeout
* a. if probe, then min-interval monitor's timeout
* b. else, in XML_CIB_TAG_OPCONFIG
* 4. CRM_DEFAULT_OP_TIMEOUT_S
*
* #1 overrides general rule of <op> XML property having highest
* precedence.
*/
if (pcmk_is_set(pcmk_get_ra_caps(rsc_rule_data.standard),
pcmk_ra_cap_fence_params)
&& (pcmk__str_eq(action->task, RSC_START, pcmk__str_casei)
|| is_probe)) {
GHashTable *params = pe_rsc_params(action->rsc, action->node, data_set);
value = g_hash_table_lookup(params, "pcmk_monitor_timeout");
if (value) {
crm_trace("\t%s: Setting timeout to pcmk_monitor_timeout '%s', "
"overriding default", action->uuid, value);
g_hash_table_replace(action->meta, strdup(XML_ATTR_TIMEOUT),
strdup(value));
}
}
// Normalize timeout to positive milliseconds
value = g_hash_table_lookup(action->meta, XML_ATTR_TIMEOUT);
timeout_ms = unpack_timeout(value);
g_hash_table_replace(action->meta, strdup(XML_ATTR_TIMEOUT),
pcmk__itoa(timeout_ms));
if (!pcmk__strcase_any_of(action->task, RSC_START, RSC_PROMOTE, NULL)) {
action->needs = rsc_req_nothing;
value = "nothing (not start or promote)";
} else if (pcmk_is_set(action->rsc->flags, pe_rsc_needs_fencing)) {
action->needs = rsc_req_stonith;
value = "fencing";
} else if (pcmk_is_set(action->rsc->flags, pe_rsc_needs_quorum)) {
action->needs = rsc_req_quorum;
value = "quorum";
} else {
action->needs = rsc_req_nothing;
value = "nothing";
}
pe_rsc_trace(action->rsc, "%s requires %s", action->uuid, value);
value = unpack_operation_on_fail(action);
if (value == NULL) {
} else if (pcmk__str_eq(value, "block", pcmk__str_casei)) {
action->on_fail = action_fail_block;
g_hash_table_insert(action->meta, strdup(XML_OP_ATTR_ON_FAIL), strdup("block"));
value = "block"; // The above could destroy the original string
} else if (pcmk__str_eq(value, "fence", pcmk__str_casei)) {
action->on_fail = action_fail_fence;
value = "node fencing";
if (!pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
pcmk__config_err("Resetting '" XML_OP_ATTR_ON_FAIL "' for "
"operation '%s' to 'stop' because 'fence' is not "
"valid when fencing is disabled", action->uuid);
action->on_fail = action_fail_stop;
action->fail_role = RSC_ROLE_STOPPED;
value = "stop resource";
}
} else if (pcmk__str_eq(value, "standby", pcmk__str_casei)) {
action->on_fail = action_fail_standby;
value = "node standby";
} else if (pcmk__strcase_any_of(value, "ignore", "nothing", NULL)) {
action->on_fail = action_fail_ignore;
value = "ignore";
} else if (pcmk__str_eq(value, "migrate", pcmk__str_casei)) {
action->on_fail = action_fail_migrate;
value = "force migration";
} else if (pcmk__str_eq(value, "stop", pcmk__str_casei)) {
action->on_fail = action_fail_stop;
action->fail_role = RSC_ROLE_STOPPED;
value = "stop resource";
} else if (pcmk__str_eq(value, "restart", pcmk__str_casei)) {
action->on_fail = action_fail_recover;
value = "restart (and possibly migrate)";
} else if (pcmk__str_eq(value, "restart-container", pcmk__str_casei)) {
if (container) {
action->on_fail = action_fail_restart_container;
value = "restart container (and possibly migrate)";
} else {
value = NULL;
}
} else if (pcmk__str_eq(value, "demote", pcmk__str_casei)) {
action->on_fail = action_fail_demote;
value = "demote instance";
} else {
pe_err("Resource %s: Unknown failure type (%s)", action->rsc->id, value);
value = NULL;
}
/* defaults */
if (value == NULL && container) {
action->on_fail = action_fail_restart_container;
value = "restart container (and possibly migrate) (default)";
/* For remote nodes, ensure that any failure that results in dropping an
* active connection to the node results in fencing of the node.
*
* There are only two action failures that don't result in fencing.
* 1. probes - probe failures are expected.
* 2. start - a start failure indicates that an active connection does not already
* exist. The user can set op on-fail=fence if they really want to fence start
* failures. */
} else if (((value == NULL) || !pcmk_is_set(action->rsc->flags, pe_rsc_managed))
&& pe__resource_is_remote_conn(action->rsc, data_set)
&& !(pcmk__str_eq(action->task, CRMD_ACTION_STATUS, pcmk__str_casei)
&& (interval_ms == 0))
&& !pcmk__str_eq(action->task, CRMD_ACTION_START, pcmk__str_casei)) {
if (!pcmk_is_set(action->rsc->flags, pe_rsc_managed)) {
action->on_fail = action_fail_stop;
action->fail_role = RSC_ROLE_STOPPED;
value = "stop unmanaged remote node (enforcing default)";
} else {
if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
value = "fence remote node (default)";
} else {
value = "recover remote node connection (default)";
}
if (action->rsc->remote_reconnect_ms) {
action->fail_role = RSC_ROLE_STOPPED;
}
action->on_fail = action_fail_reset_remote;
}
} else if (value == NULL && pcmk__str_eq(action->task, CRMD_ACTION_STOP, pcmk__str_casei)) {
if (pcmk_is_set(data_set->flags, pe_flag_stonith_enabled)) {
action->on_fail = action_fail_fence;
value = "resource fence (default)";
} else {
action->on_fail = action_fail_block;
value = "resource block (default)";
}
} else if (value == NULL) {
action->on_fail = action_fail_recover;
value = "restart (and possibly migrate) (default)";
}
pe_rsc_trace(action->rsc, "%s failure handling: %s",
action->uuid, value);
value = NULL;
if (xml_obj != NULL) {
value = g_hash_table_lookup(action->meta, "role_after_failure");
if (value) {
pe_warn_once(pe_wo_role_after,
"Support for role_after_failure is deprecated and will be removed in a future release");
}
}
if (value != NULL && action->fail_role == RSC_ROLE_UNKNOWN) {
action->fail_role = text2role(value);
}
/* defaults */
if (action->fail_role == RSC_ROLE_UNKNOWN) {
if (pcmk__str_eq(action->task, CRMD_ACTION_PROMOTE, pcmk__str_casei)) {
action->fail_role = RSC_ROLE_UNPROMOTED;
} else {
action->fail_role = RSC_ROLE_STARTED;
}
}
pe_rsc_trace(action->rsc, "%s failure results in: %s",
action->uuid, role2text(action->fail_role));
value = g_hash_table_lookup(action->meta, XML_OP_ATTR_START_DELAY);
if (value) {
unpack_start_delay(value, action->meta);
} else {
long long start_delay = 0;
value = g_hash_table_lookup(action->meta, XML_OP_ATTR_ORIGIN);
if (unpack_interval_origin(value, xml_obj, interval_ms, data_set->now,
&start_delay)) {
g_hash_table_replace(action->meta, strdup(XML_OP_ATTR_START_DELAY),
crm_strdup_printf("%lld", start_delay));
}
}
#if ENABLE_VERSIONED_ATTRS
unpack_versioned_meta(rsc_details->versioned_meta, xml_obj, interval_ms,
data_set->now);
#endif
}
static xmlNode *
find_rsc_op_entry_helper(pe_resource_t * rsc, const char *key, gboolean include_disabled)
{
guint interval_ms = 0;
gboolean do_retry = TRUE;
char *local_key = NULL;
const char *name = NULL;
const char *interval_spec = NULL;
char *match_key = NULL;
xmlNode *op = NULL;
xmlNode *operation = NULL;
retry:
for (operation = pcmk__xe_first_child(rsc->ops_xml); operation != NULL;
operation = pcmk__xe_next(operation)) {
if (pcmk__str_eq((const char *)operation->name, "op", pcmk__str_none)) {
bool enabled = false;
name = crm_element_value(operation, "name");
interval_spec = crm_element_value(operation, XML_LRM_ATTR_INTERVAL);
if (!include_disabled && pcmk__xe_get_bool_attr(operation, "enabled", &enabled) == pcmk_rc_ok &&
!enabled) {
continue;
}
interval_ms = crm_parse_interval_spec(interval_spec);
match_key = pcmk__op_key(rsc->id, name, interval_ms);
if (pcmk__str_eq(key, match_key, pcmk__str_casei)) {
op = operation;
}
free(match_key);
if (rsc->clone_name) {
match_key = pcmk__op_key(rsc->clone_name, name, interval_ms);
if (pcmk__str_eq(key, match_key, pcmk__str_casei)) {
op = operation;
}
free(match_key);
}
if (op != NULL) {
free(local_key);
return op;
}
}
}
free(local_key);
if (do_retry == FALSE) {
return NULL;
}
do_retry = FALSE;
if (strstr(key, CRMD_ACTION_MIGRATE) || strstr(key, CRMD_ACTION_MIGRATED)) {
local_key = pcmk__op_key(rsc->id, "migrate", 0);
key = local_key;
goto retry;
} else if (strstr(key, "_notify_")) {
local_key = pcmk__op_key(rsc->id, "notify", 0);
key = local_key;
goto retry;
}
return NULL;
}
xmlNode *
find_rsc_op_entry(pe_resource_t * rsc, const char *key)
{
return find_rsc_op_entry_helper(rsc, key, FALSE);
}
/*
* Used by the HashTable for-loop
*/
void
print_str_str(gpointer key, gpointer value, gpointer user_data)
{
crm_trace("%s%s %s ==> %s",
user_data == NULL ? "" : (char *)user_data,
user_data == NULL ? "" : ": ", (char *)key, (char *)value);
}
void
pe_free_action(pe_action_t * action)
{
if (action == NULL) {
return;
}
g_list_free_full(action->actions_before, free); /* pe_action_wrapper_t* */
g_list_free_full(action->actions_after, free); /* pe_action_wrapper_t* */
if (action->extra) {
g_hash_table_destroy(action->extra);
}
if (action->meta) {
g_hash_table_destroy(action->meta);
}
#if ENABLE_VERSIONED_ATTRS
if (action->rsc) {
pe_free_rsc_action_details(action);
}
#endif
free(action->cancel_task);
free(action->reason);
free(action->task);
free(action->uuid);
free(action->node);
free(action);
}
GList *
find_recurring_actions(GList *input, pe_node_t * not_on_node)
{
const char *value = NULL;
GList *result = NULL;
GList *gIter = input;
CRM_CHECK(input != NULL, return NULL);
for (; gIter != NULL; gIter = gIter->next) {
pe_action_t *action = (pe_action_t *) gIter->data;
value = g_hash_table_lookup(action->meta, XML_LRM_ATTR_INTERVAL_MS);
if (value == NULL) {
/* skip */
} else if (pcmk__str_eq(value, "0", pcmk__str_casei)) {
/* skip */
} else if (pcmk__str_eq(CRMD_ACTION_CANCEL, action->task, pcmk__str_casei)) {
/* skip */
} else if (not_on_node == NULL) {
crm_trace("(null) Found: %s", action->uuid);
result = g_list_prepend(result, action);
} else if (action->node == NULL) {
/* skip */
} else if (action->node->details != not_on_node->details) {
crm_trace("Found: %s", action->uuid);
result = g_list_prepend(result, action);
}
}
return result;
}
enum action_tasks
get_complex_task(pe_resource_t * rsc, const char *name, gboolean allow_non_atomic)
{
enum action_tasks task = text2task(name);
if (rsc == NULL) {
return task;
} else if (allow_non_atomic == FALSE || rsc->variant == pe_native) {
switch (task) {
case stopped_rsc:
case started_rsc:
case action_demoted:
case action_promoted:
crm_trace("Folding %s back into its atomic counterpart for %s", name, rsc->id);
return task - 1;
default:
break;
}
}
return task;
}
pe_action_t *
find_first_action(GList *input, const char *uuid, const char *task, pe_node_t * on_node)
{
GList *gIter = NULL;
CRM_CHECK(uuid || task, return NULL);
for (gIter = input; gIter != NULL; gIter = gIter->next) {
pe_action_t *action = (pe_action_t *) gIter->data;
if (uuid != NULL && !pcmk__str_eq(uuid, action->uuid, pcmk__str_casei)) {
continue;
} else if (task != NULL && !pcmk__str_eq(task, action->task, pcmk__str_casei)) {
continue;
} else if (on_node == NULL) {
return action;
} else if (action->node == NULL) {
continue;
} else if (on_node->details == action->node->details) {
return action;
}
}
return NULL;
}
GList *
find_actions(GList *input, const char *key, const pe_node_t *on_node)
{
GList *gIter = input;
GList *result = NULL;
CRM_CHECK(key != NULL, return NULL);
for (; gIter != NULL; gIter = gIter->next) {
pe_action_t *action = (pe_action_t *) gIter->data;
if (!pcmk__str_eq(key, action->uuid, pcmk__str_casei)) {
continue;
} else if (on_node == NULL) {
crm_trace("Action %s matches (ignoring node)", key);
result = g_list_prepend(result, action);
} else if (action->node == NULL) {
crm_trace("Action %s matches (unallocated, assigning to %s)",
key, on_node->details->uname);
action->node = pe__copy_node(on_node);
result = g_list_prepend(result, action);
} else if (on_node->details == action->node->details) {
crm_trace("Action %s on %s matches", key, on_node->details->uname);
result = g_list_prepend(result, action);
}
}
return result;
}
GList *
find_actions_exact(GList *input, const char *key, const pe_node_t *on_node)
{
GList *result = NULL;
CRM_CHECK(key != NULL, return NULL);
if (on_node == NULL) {
return NULL;
}
for (GList *gIter = input; gIter != NULL; gIter = gIter->next) {
pe_action_t *action = (pe_action_t *) gIter->data;
if ((action->node != NULL)
&& pcmk__str_eq(key, action->uuid, pcmk__str_casei)
&& pcmk__str_eq(on_node->details->id, action->node->details->id,
pcmk__str_casei)) {
crm_trace("Action %s on %s matches", key, on_node->details->uname);
result = g_list_prepend(result, action);
}
}
return result;
}
/*!
* \brief Find all actions of given type for a resource
*
* \param[in] rsc Resource to search
* \param[in] node Find only actions scheduled on this node
* \param[in] task Action name to search for
* \param[in] require_node If TRUE, NULL node or action node will not match
*
* \return List of actions found (or NULL if none)
* \note If node is not NULL and require_node is FALSE, matching actions
* without a node will be assigned to node.
*/
GList *
pe__resource_actions(const pe_resource_t *rsc, const pe_node_t *node,
const char *task, bool require_node)
{
GList *result = NULL;
char *key = pcmk__op_key(rsc->id, task, 0);
if (require_node) {
result = find_actions_exact(rsc->actions, key, node);
} else {
result = find_actions(rsc->actions, key, node);
}
free(key);
return result;
}
static void
resource_node_score(pe_resource_t * rsc, pe_node_t * node, int score, const char *tag)
{
pe_node_t *match = NULL;
if ((rsc->exclusive_discover || (node->rsc_discover_mode == pe_discover_never))
&& pcmk__str_eq(tag, "symmetric_default", pcmk__str_casei)) {
/* This string comparision may be fragile, but exclusive resources and
* exclusive nodes should not have the symmetric_default constraint
* applied to them.
*/
return;
} else if (rsc->children) {
GList *gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
pe_resource_t *child_rsc = (pe_resource_t *) gIter->data;
resource_node_score(child_rsc, node, score, tag);
}
}
pe_rsc_trace(rsc, "Setting %s for %s on %s: %d", tag, rsc->id, node->details->uname, score);
match = pe_hash_table_lookup(rsc->allowed_nodes, node->details->id);
if (match == NULL) {
match = pe__copy_node(node);
g_hash_table_insert(rsc->allowed_nodes, (gpointer) match->details->id, match);
}
match->weight = pe__add_scores(match->weight, score);
}
void
resource_location(pe_resource_t * rsc, pe_node_t * node, int score, const char *tag,
pe_working_set_t * data_set)
{
if (node != NULL) {
resource_node_score(rsc, node, score, tag);
} else if (data_set != NULL) {
GList *gIter = data_set->nodes;
for (; gIter != NULL; gIter = gIter->next) {
pe_node_t *node_iter = (pe_node_t *) gIter->data;
resource_node_score(rsc, node_iter, score, tag);
}
} else {
GHashTableIter iter;
pe_node_t *node_iter = NULL;
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node_iter)) {
resource_node_score(rsc, node_iter, score, tag);
}
}
if (node == NULL && score == -INFINITY) {
if (rsc->allocated_to) {
crm_info("Deallocating %s from %s", rsc->id, rsc->allocated_to->details->uname);
free(rsc->allocated_to);
rsc->allocated_to = NULL;
}
}
}
#define sort_return(an_int, why) do { \
free(a_uuid); \
free(b_uuid); \
crm_trace("%s (%d) %c %s (%d) : %s", \
a_xml_id, a_call_id, an_int>0?'>':an_int<0?'<':'=', \
b_xml_id, b_call_id, why); \
return an_int; \
} while(0)
gint
sort_op_by_callid(gconstpointer a, gconstpointer b)
{
int a_call_id = -1;
int b_call_id = -1;
char *a_uuid = NULL;
char *b_uuid = NULL;
const xmlNode *xml_a = a;
const xmlNode *xml_b = b;
const char *a_xml_id = crm_element_value(xml_a, XML_ATTR_ID);
const char *b_xml_id = crm_element_value(xml_b, XML_ATTR_ID);
if (pcmk__str_eq(a_xml_id, b_xml_id, pcmk__str_casei)) {
/* We have duplicate lrm_rsc_op entries in the status
* section which is unlikely to be a good thing
* - we can handle it easily enough, but we need to get
* to the bottom of why it's happening.
*/
pe_err("Duplicate lrm_rsc_op entries named %s", a_xml_id);
sort_return(0, "duplicate");
}
crm_element_value_int(xml_a, XML_LRM_ATTR_CALLID, &a_call_id);
crm_element_value_int(xml_b, XML_LRM_ATTR_CALLID, &b_call_id);
if (a_call_id == -1 && b_call_id == -1) {
/* both are pending ops so it doesn't matter since
* stops are never pending
*/
sort_return(0, "pending");
} else if (a_call_id >= 0 && a_call_id < b_call_id) {
sort_return(-1, "call id");
} else if (b_call_id >= 0 && a_call_id > b_call_id) {
sort_return(1, "call id");
} else if (b_call_id >= 0 && a_call_id == b_call_id) {
/*
* The op and last_failed_op are the same
* Order on last-rc-change
*/
time_t last_a = -1;
time_t last_b = -1;
crm_element_value_epoch(xml_a, XML_RSC_OP_LAST_CHANGE, &last_a);
crm_element_value_epoch(xml_b, XML_RSC_OP_LAST_CHANGE, &last_b);
crm_trace("rc-change: %lld vs %lld",
(long long) last_a, (long long) last_b);
if (last_a >= 0 && last_a < last_b) {
sort_return(-1, "rc-change");
} else if (last_b >= 0 && last_a > last_b) {
sort_return(1, "rc-change");
}
sort_return(0, "rc-change");
} else {
/* One of the inputs is a pending operation
* Attempt to use XML_ATTR_TRANSITION_MAGIC to determine its age relative to the other
*/
int a_id = -1;
int b_id = -1;
const char *a_magic = crm_element_value(xml_a, XML_ATTR_TRANSITION_MAGIC);
const char *b_magic = crm_element_value(xml_b, XML_ATTR_TRANSITION_MAGIC);
CRM_CHECK(a_magic != NULL && b_magic != NULL, sort_return(0, "No magic"));
if (!decode_transition_magic(a_magic, &a_uuid, &a_id, NULL, NULL, NULL,
NULL)) {
sort_return(0, "bad magic a");
}
if (!decode_transition_magic(b_magic, &b_uuid, &b_id, NULL, NULL, NULL,
NULL)) {
sort_return(0, "bad magic b");
}
/* try to determine the relative age of the operation...
* some pending operations (e.g. a start) may have been superseded
* by a subsequent stop
*
* [a|b]_id == -1 means it's a shutdown operation and _always_ comes last
*/
if (!pcmk__str_eq(a_uuid, b_uuid, pcmk__str_casei) || a_id == b_id) {
/*
* some of the logic in here may be redundant...
*
* if the UUID from the TE doesn't match then one better
* be a pending operation.
* pending operations don't survive between elections and joins
* because we query the LRM directly
*/
if (b_call_id == -1) {
sort_return(-1, "transition + call");
} else if (a_call_id == -1) {
sort_return(1, "transition + call");
}
} else if ((a_id >= 0 && a_id < b_id) || b_id == -1) {
sort_return(-1, "transition");
} else if ((b_id >= 0 && a_id > b_id) || a_id == -1) {
sort_return(1, "transition");
}
}
/* we should never end up here */
CRM_CHECK(FALSE, sort_return(0, "default"));
}
time_t
get_effective_time(pe_working_set_t * data_set)
{
if(data_set) {
if (data_set->now == NULL) {
crm_trace("Recording a new 'now'");
data_set->now = crm_time_new(NULL);
}
return crm_time_get_seconds_since_epoch(data_set->now);
}
crm_trace("Defaulting to 'now'");
return time(NULL);
}
gboolean
get_target_role(pe_resource_t * rsc, enum rsc_role_e * role)
{
enum rsc_role_e local_role = RSC_ROLE_UNKNOWN;
const char *value = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_TARGET_ROLE);
CRM_CHECK(role != NULL, return FALSE);
if (pcmk__str_eq(value, "started", pcmk__str_null_matches | pcmk__str_casei)
|| pcmk__str_eq("default", value, pcmk__str_casei)) {
return FALSE;
}
local_role = text2role(value);
if (local_role == RSC_ROLE_UNKNOWN) {
pcmk__config_err("Ignoring '" XML_RSC_ATTR_TARGET_ROLE "' for %s "
"because '%s' is not valid", rsc->id, value);
return FALSE;
} else if (local_role > RSC_ROLE_STARTED) {
if (pcmk_is_set(uber_parent(rsc)->flags, pe_rsc_promotable)) {
if (local_role > RSC_ROLE_UNPROMOTED) {
/* This is what we'd do anyway, just leave the default to avoid messing up the placement algorithm */
return FALSE;
}
} else {
pcmk__config_err("Ignoring '" XML_RSC_ATTR_TARGET_ROLE "' for %s "
"because '%s' only makes sense for promotable "
"clones", rsc->id, value);
return FALSE;
}
}
*role = local_role;
return TRUE;
}
gboolean
order_actions(pe_action_t * lh_action, pe_action_t * rh_action, enum pe_ordering order)
{
GList *gIter = NULL;
pe_action_wrapper_t *wrapper = NULL;
GList *list = NULL;
if (order == pe_order_none) {
return FALSE;
}
if (lh_action == NULL || rh_action == NULL) {
return FALSE;
}
crm_trace("Creating action wrappers for ordering: %s then %s",
lh_action->uuid, rh_action->uuid);
/* Ensure we never create a dependency on ourselves... it's happened */
CRM_ASSERT(lh_action != rh_action);
/* Filter dups, otherwise update_action_states() has too much work to do */
gIter = lh_action->actions_after;
for (; gIter != NULL; gIter = gIter->next) {
pe_action_wrapper_t *after = (pe_action_wrapper_t *) gIter->data;
if (after->action == rh_action && (after->type & order)) {
return FALSE;
}
}
wrapper = calloc(1, sizeof(pe_action_wrapper_t));
wrapper->action = rh_action;
wrapper->type = order;
list = lh_action->actions_after;
list = g_list_prepend(list, wrapper);
lh_action->actions_after = list;
wrapper = calloc(1, sizeof(pe_action_wrapper_t));
wrapper->action = lh_action;
wrapper->type = order;
list = rh_action->actions_before;
list = g_list_prepend(list, wrapper);
rh_action->actions_before = list;
return TRUE;
}
pe_action_t *
get_pseudo_op(const char *name, pe_working_set_t * data_set)
{
pe_action_t *op = lookup_singleton(data_set, name);
if (op == NULL) {
op = custom_action(NULL, strdup(name), name, NULL, TRUE, TRUE, data_set);
pe__set_action_flags(op, pe_action_pseudo|pe_action_runnable);
}
return op;
}
void
destroy_ticket(gpointer data)
{
pe_ticket_t *ticket = data;
if (ticket->state) {
g_hash_table_destroy(ticket->state);
}
free(ticket->id);
free(ticket);
}
pe_ticket_t *
ticket_new(const char *ticket_id, pe_working_set_t * data_set)
{
pe_ticket_t *ticket = NULL;
if (pcmk__str_empty(ticket_id)) {
return NULL;
}
if (data_set->tickets == NULL) {
data_set->tickets = pcmk__strkey_table(free, destroy_ticket);
}
ticket = g_hash_table_lookup(data_set->tickets, ticket_id);
if (ticket == NULL) {
ticket = calloc(1, sizeof(pe_ticket_t));
if (ticket == NULL) {
crm_err("Cannot allocate ticket '%s'", ticket_id);
return NULL;
}
crm_trace("Creaing ticket entry for %s", ticket_id);
ticket->id = strdup(ticket_id);
ticket->granted = FALSE;
ticket->last_granted = -1;
ticket->standby = FALSE;
ticket->state = pcmk__strkey_table(free, free);
g_hash_table_insert(data_set->tickets, strdup(ticket->id), ticket);
}
return ticket;
}
const char *rsc_printable_id(pe_resource_t *rsc)
{
if (!pcmk_is_set(rsc->flags, pe_rsc_unique)) {
return ID(rsc->xml);
}
return rsc->id;
}
void
pe__clear_resource_flags_recursive(pe_resource_t *rsc, uint64_t flags)
{
pe__clear_resource_flags(rsc, flags);
for (GList *gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
pe__clear_resource_flags_recursive((pe_resource_t *) gIter->data, flags);
}
}
void
pe__clear_resource_flags_on_all(pe_working_set_t *data_set, uint64_t flag)
{
for (GList *lpc = data_set->resources; lpc != NULL; lpc = lpc->next) {
pe_resource_t *r = (pe_resource_t *) lpc->data;
pe__clear_resource_flags_recursive(r, flag);
}
}
void
pe__set_resource_flags_recursive(pe_resource_t *rsc, uint64_t flags)
{
pe__set_resource_flags(rsc, flags);
for (GList *gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
pe__set_resource_flags_recursive((pe_resource_t *) gIter->data, flags);
}
}
static GList *
find_unfencing_devices(GList *candidates, GList *matches)
{
for (GList *gIter = candidates; gIter != NULL; gIter = gIter->next) {
pe_resource_t *candidate = gIter->data;
const char *provides = g_hash_table_lookup(candidate->meta,
PCMK_STONITH_PROVIDES);
const char *requires = g_hash_table_lookup(candidate->meta, XML_RSC_ATTR_REQUIRES);
if(candidate->children) {
matches = find_unfencing_devices(candidate->children, matches);
} else if (!pcmk_is_set(candidate->flags, pe_rsc_fence_device)) {
continue;
} else if (pcmk__str_eq(provides, "unfencing", pcmk__str_casei) || pcmk__str_eq(requires, "unfencing", pcmk__str_casei)) {
matches = g_list_prepend(matches, candidate);
}
}
return matches;
}
static int
node_priority_fencing_delay(pe_node_t * node, pe_working_set_t * data_set)
{
int member_count = 0;
int online_count = 0;
int top_priority = 0;
int lowest_priority = 0;
GList *gIter = NULL;
// `priority-fencing-delay` is disabled
if (data_set->priority_fencing_delay <= 0) {
return 0;
}
/* No need to request a delay if the fencing target is not a normal cluster
* member, for example if it's a remote node or a guest node. */
if (node->details->type != node_member) {
return 0;
}
// No need to request a delay if the fencing target is in our partition
if (node->details->online) {
return 0;
}
for (gIter = data_set->nodes; gIter != NULL; gIter = gIter->next) {
pe_node_t *n = gIter->data;
if (n->details->type != node_member) {
continue;
}
member_count ++;
if (n->details->online) {
online_count++;
}
if (member_count == 1
|| n->details->priority > top_priority) {
top_priority = n->details->priority;
}
if (member_count == 1
|| n->details->priority < lowest_priority) {
lowest_priority = n->details->priority;
}
}
// No need to delay if we have more than half of the cluster members
if (online_count > member_count / 2) {
return 0;
}
/* All the nodes have equal priority.
* Any configured corresponding `pcmk_delay_base/max` will be applied. */
if (lowest_priority == top_priority) {
return 0;
}
if (node->details->priority < top_priority) {
return 0;
}
return data_set->priority_fencing_delay;
}
pe_action_t *
pe_fence_op(pe_node_t * node, const char *op, bool optional, const char *reason,
bool priority_delay, pe_working_set_t * data_set)
{
char *op_key = NULL;
pe_action_t *stonith_op = NULL;
if(op == NULL) {
op = data_set->stonith_action;
}
op_key = crm_strdup_printf("%s-%s-%s", CRM_OP_FENCE, node->details->uname, op);
stonith_op = lookup_singleton(data_set, op_key);
if(stonith_op == NULL) {
stonith_op = custom_action(NULL, op_key, CRM_OP_FENCE, node, TRUE, TRUE, data_set);
add_hash_param(stonith_op->meta, XML_LRM_ATTR_TARGET, node->details->uname);
add_hash_param(stonith_op->meta, XML_LRM_ATTR_TARGET_UUID, node->details->id);
add_hash_param(stonith_op->meta, "stonith_action", op);
if (pe__is_guest_or_remote_node(node)
&& pcmk_is_set(data_set->flags, pe_flag_enable_unfencing)) {
/* Extra work to detect device changes on remotes
*
* We may do this for all nodes in the future, but for now
* the check_action_definition() based stuff works fine.
*/
long max = 1024;
long digests_all_offset = 0;
long digests_secure_offset = 0;
char *digests_all = calloc(max, sizeof(char));
char *digests_secure = calloc(max, sizeof(char));
GList *matches = find_unfencing_devices(data_set->resources, NULL);
for (GList *gIter = matches; gIter != NULL; gIter = gIter->next) {
pe_resource_t *match = gIter->data;
const char *agent = g_hash_table_lookup(match->meta,
XML_ATTR_TYPE);
op_digest_cache_t *data = NULL;
data = pe__compare_fencing_digest(match, agent, node, data_set);
if(data->rc == RSC_DIGEST_ALL) {
optional = FALSE;
crm_notice("Unfencing %s (remote): because the definition of %s changed", node->details->uname, match->id);
if (!pcmk__is_daemon && data_set->priv != NULL) {
pcmk__output_t *out = data_set->priv;
out->info(out, "notice: Unfencing %s (remote): because the definition of %s changed",
node->details->uname, match->id);
}
}
digests_all_offset += snprintf(
digests_all+digests_all_offset, max-digests_all_offset,
"%s:%s:%s,", match->id, agent, data->digest_all_calc);
digests_secure_offset += snprintf(
digests_secure+digests_secure_offset, max-digests_secure_offset,
"%s:%s:%s,", match->id, agent, data->digest_secure_calc);
}
g_hash_table_insert(stonith_op->meta,
strdup(XML_OP_ATTR_DIGESTS_ALL),
digests_all);
g_hash_table_insert(stonith_op->meta,
strdup(XML_OP_ATTR_DIGESTS_SECURE),
digests_secure);
}
} else {
free(op_key);
}
if (data_set->priority_fencing_delay > 0
/* It's a suitable case where `priority-fencing-delay` applies.
* At least add `priority-fencing-delay` field as an indicator. */
&& (priority_delay
/* Re-calculate priority delay for the suitable case when
* pe_fence_op() is called again by stage6() after node priority has
* been actually calculated with native_add_running() */
|| g_hash_table_lookup(stonith_op->meta,
XML_CONFIG_ATTR_PRIORITY_FENCING_DELAY) != NULL)) {
/* Add `priority-fencing-delay` to the fencing op even if it's 0 for
* the targeting node. So that it takes precedence over any possible
* `pcmk_delay_base/max`.
*/
char *delay_s = pcmk__itoa(node_priority_fencing_delay(node, data_set));
g_hash_table_insert(stonith_op->meta,
strdup(XML_CONFIG_ATTR_PRIORITY_FENCING_DELAY),
delay_s);
}
if(optional == FALSE && pe_can_fence(data_set, node)) {
pe__clear_action_flags(stonith_op, pe_action_optional);
pe_action_set_reason(stonith_op, reason, false);
} else if(reason && stonith_op->reason == NULL) {
stonith_op->reason = strdup(reason);
}
return stonith_op;
}
void
trigger_unfencing(
pe_resource_t * rsc, pe_node_t *node, const char *reason, pe_action_t *dependency, pe_working_set_t * data_set)
{
if (!pcmk_is_set(data_set->flags, pe_flag_enable_unfencing)) {
/* No resources require it */
return;
} else if ((rsc != NULL)
&& !pcmk_is_set(rsc->flags, pe_rsc_fence_device)) {
/* Wasn't a stonith device */
return;
} else if(node
&& node->details->online
&& node->details->unclean == FALSE
&& node->details->shutdown == FALSE) {
pe_action_t *unfence = pe_fence_op(node, "on", FALSE, reason, FALSE, data_set);
if(dependency) {
order_actions(unfence, dependency, pe_order_optional);
}
} else if(rsc) {
GHashTableIter iter;
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
if(node->details->online && node->details->unclean == FALSE && node->details->shutdown == FALSE) {
trigger_unfencing(rsc, node, reason, dependency, data_set);
}
}
}
}
gboolean
add_tag_ref(GHashTable * tags, const char * tag_name, const char * obj_ref)
{
pe_tag_t *tag = NULL;
GList *gIter = NULL;
gboolean is_existing = FALSE;
CRM_CHECK(tags && tag_name && obj_ref, return FALSE);
tag = g_hash_table_lookup(tags, tag_name);
if (tag == NULL) {
tag = calloc(1, sizeof(pe_tag_t));
if (tag == NULL) {
return FALSE;
}
tag->id = strdup(tag_name);
tag->refs = NULL;
g_hash_table_insert(tags, strdup(tag_name), tag);
}
for (gIter = tag->refs; gIter != NULL; gIter = gIter->next) {
const char *existing_ref = (const char *) gIter->data;
if (pcmk__str_eq(existing_ref, obj_ref, pcmk__str_none)){
is_existing = TRUE;
break;
}
}
if (is_existing == FALSE) {
tag->refs = g_list_append(tag->refs, strdup(obj_ref));
crm_trace("Added: tag=%s ref=%s", tag->id, obj_ref);
}
return TRUE;
}
/*!
* \internal
* \brief Create an action reason string based on the action itself
*
* \param[in] action Action to create reason string for
* \param[in] flag Action flag that was cleared
*
* \return Newly allocated string suitable for use as action reason
* \note It is the caller's responsibility to free() the result.
*/
char *
pe__action2reason(pe_action_t *action, enum pe_action_flags flag)
{
const char *change = NULL;
switch (flag) {
case pe_action_runnable:
case pe_action_migrate_runnable:
change = "unrunnable";
break;
case pe_action_optional:
change = "required";
break;
default:
// Bug: caller passed unsupported flag
CRM_CHECK(change != NULL, change = "");
break;
}
return crm_strdup_printf("%s%s%s %s", change,
(action->rsc == NULL)? "" : " ",
(action->rsc == NULL)? "" : action->rsc->id,
action->task);
}
void pe_action_set_reason(pe_action_t *action, const char *reason, bool overwrite)
{
if (action->reason != NULL && overwrite) {
pe_rsc_trace(action->rsc, "Changing %s reason from '%s' to '%s'",
action->uuid, action->reason, crm_str(reason));
free(action->reason);
} else if (action->reason == NULL) {
pe_rsc_trace(action->rsc, "Set %s reason to '%s'",
action->uuid, crm_str(reason));
} else {
// crm_assert(action->reason != NULL && !overwrite);
return;
}
if (reason != NULL) {
action->reason = strdup(reason);
} else {
action->reason = NULL;
}
}
/*!
* \internal
* \brief Check whether shutdown has been requested for a node
*
* \param[in] node Node to check
*
* \return TRUE if node has shutdown attribute set and nonzero, FALSE otherwise
* \note This differs from simply using node->details->shutdown in that it can
* be used before that has been determined (and in fact to determine it),
* and it can also be used to distinguish requested shutdown from implicit
* shutdown of remote nodes by virtue of their connection stopping.
*/
bool
pe__shutdown_requested(pe_node_t *node)
{
const char *shutdown = pe_node_attribute_raw(node, XML_CIB_ATTR_SHUTDOWN);
return !pcmk__str_eq(shutdown, "0", pcmk__str_null_matches);
}
/*!
* \internal
* \brief Update a data set's "recheck by" time
*
* \param[in] recheck Epoch time when recheck should happen
* \param[in,out] data_set Current working set
*/
void
pe__update_recheck_time(time_t recheck, pe_working_set_t *data_set)
{
if ((recheck > get_effective_time(data_set))
&& ((data_set->recheck_by == 0)
|| (data_set->recheck_by > recheck))) {
data_set->recheck_by = recheck;
}
}
/*!
* \internal
* \brief Wrapper for pe_unpack_nvpairs() using a cluster working set
*/
void
pe__unpack_dataset_nvpairs(xmlNode *xml_obj, const char *set_name,
pe_rule_eval_data_t *rule_data, GHashTable *hash,
const char *always_first, gboolean overwrite,
pe_working_set_t *data_set)
{
crm_time_t *next_change = crm_time_new_undefined();
pe_eval_nvpairs(data_set->input, xml_obj, set_name, rule_data, hash,
always_first, overwrite, next_change);
if (crm_time_is_defined(next_change)) {
time_t recheck = (time_t) crm_time_get_seconds_since_epoch(next_change);
pe__update_recheck_time(recheck, data_set);
}
crm_time_free(next_change);
}
bool
pe__resource_is_disabled(pe_resource_t *rsc)
{
const char *target_role = NULL;
CRM_CHECK(rsc != NULL, return false);
target_role = g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_TARGET_ROLE);
if (target_role) {
enum rsc_role_e target_role_e = text2role(target_role);
if ((target_role_e == RSC_ROLE_STOPPED)
|| ((target_role_e == RSC_ROLE_UNPROMOTED)
&& pcmk_is_set(uber_parent(rsc)->flags, pe_rsc_promotable))) {
return true;
}
}
return false;
}
/*!
* \internal
* \brief Create an action to clear a resource's history from CIB
*
* \param[in] rsc Resource to clear
* \param[in] node Node to clear history on
*
* \return New action to clear resource history
*/
pe_action_t *
pe__clear_resource_history(pe_resource_t *rsc, pe_node_t *node,
pe_working_set_t *data_set)
{
char *key = NULL;
CRM_ASSERT(rsc && node);
key = pcmk__op_key(rsc->id, CRM_OP_LRM_DELETE, 0);
return custom_action(rsc, key, CRM_OP_LRM_DELETE, node, FALSE, TRUE,
data_set);
}
bool
pe__rsc_running_on_any(pe_resource_t *rsc, GList *node_list)
{
for (GList *ele = rsc->running_on; ele; ele = ele->next) {
pe_node_t *node = (pe_node_t *) ele->data;
if (pcmk__str_in_list(node->details->uname, node_list,
pcmk__str_star_matches|pcmk__str_casei)) {
return true;
}
}
return false;
}
bool
pcmk__rsc_filtered_by_node(pe_resource_t *rsc, GList *only_node)
{
return (rsc->fns->active(rsc, FALSE) && !pe__rsc_running_on_any(rsc, only_node));
}
GList *
pe__filter_rsc_list(GList *rscs, GList *filter)
{
GList *retval = NULL;
for (GList *gIter = rscs; gIter; gIter = gIter->next) {
pe_resource_t *rsc = (pe_resource_t *) gIter->data;
/* I think the second condition is safe here for all callers of this
* function. If not, it needs to move into pe__node_text.
*/
if (pcmk__str_in_list(rsc_printable_id(rsc), filter, pcmk__str_star_matches) ||
(rsc->parent && pcmk__str_in_list(rsc_printable_id(rsc->parent), filter, pcmk__str_star_matches))) {
retval = g_list_prepend(retval, rsc);
}
}
return retval;
}
GList *
pe__build_node_name_list(pe_working_set_t *data_set, const char *s) {
GList *nodes = NULL;
if (pcmk__str_eq(s, "*", pcmk__str_null_matches)) {
/* Nothing was given so return a list of all node names. Or, '*' was
* given. This would normally fall into the pe__unames_with_tag branch
* where it will return an empty list. Catch it here instead.
*/
nodes = g_list_prepend(nodes, strdup("*"));
} else {
pe_node_t *node = pe_find_node(data_set->nodes, s);
if (node) {
/* The given string was a valid uname for a node. Return a
* singleton list containing just that uname.
*/
nodes = g_list_prepend(nodes, strdup(s));
} else {
/* The given string was not a valid uname. It's either a tag or
* it's a typo or something. In the first case, we'll return a
* list of all the unames of the nodes with the given tag. In the
* second case, we'll return a NULL pointer and nothing will
* get displayed.
*/
nodes = pe__unames_with_tag(data_set, s);
}
}
return nodes;
}
GList *
pe__build_rsc_list(pe_working_set_t *data_set, const char *s) {
GList *resources = NULL;
if (pcmk__str_eq(s, "*", pcmk__str_null_matches)) {
resources = g_list_prepend(resources, strdup("*"));
} else {
pe_resource_t *rsc = pe_find_resource_with_flags(data_set->resources, s,
pe_find_renamed|pe_find_any);
if (rsc) {
/* A colon in the name we were given means we're being asked to filter
* on a specific instance of a cloned resource. Put that exact string
* into the filter list. Otherwise, use the printable ID of whatever
* resource was found that matches what was asked for.
*/
if (strstr(s, ":") != NULL) {
resources = g_list_prepend(resources, strdup(rsc->id));
} else {
resources = g_list_prepend(resources, strdup(rsc_printable_id(rsc)));
}
} else {
/* The given string was not a valid resource name. It's either
* a tag or it's a typo or something. See build_uname_list for
* more detail.
*/
resources = pe__rscs_with_tag(data_set, s);
}
}
return resources;
}

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