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native.c
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native.c
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/*
* Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <crm_internal.h>
#include <pengine.h>
#include <crm/pengine/rules.h>
#include <lib/pengine/utils.h>
#include <crm/msg_xml.h>
#include <allocate.h>
#include <utils.h>
#define DELETE_THEN_REFRESH 1 /* The crmd will remove the resource from the CIB itself, making this redundant */
#define INFINITY_HACK (INFINITY * -100)
#define VARIANT_NATIVE 1
#include <lib/pengine/variant.h>
void native_rsc_colocation_rh_must(resource_t * rsc_lh, gboolean update_lh,
resource_t * rsc_rh, gboolean update_rh);
void native_rsc_colocation_rh_mustnot(resource_t * rsc_lh, gboolean update_lh,
resource_t * rsc_rh, gboolean update_rh);
void Recurring(resource_t * rsc, action_t * start, node_t * node, pe_working_set_t * data_set);
void RecurringOp(resource_t * rsc, action_t * start, node_t * node,
xmlNode * operation, pe_working_set_t * data_set);
void Recurring_Stopped(resource_t * rsc, action_t * start, node_t * node,
pe_working_set_t * data_set);
void RecurringOp_Stopped(resource_t * rsc, action_t * start, node_t * node,
xmlNode * operation, pe_working_set_t * data_set);
void pe_post_notify(resource_t * rsc, node_t * node, action_t * op,
notify_data_t * n_data, pe_working_set_t * data_set);
void NoRoleChange(resource_t * rsc, node_t * current, node_t * next, pe_working_set_t * data_set);
gboolean DeleteRsc(resource_t * rsc, node_t * node, gboolean optional, pe_working_set_t * data_set);
gboolean StopRsc(resource_t * rsc, node_t * next, gboolean optional, pe_working_set_t * data_set);
gboolean StartRsc(resource_t * rsc, node_t * next, gboolean optional, pe_working_set_t * data_set);
gboolean DemoteRsc(resource_t * rsc, node_t * next, gboolean optional, pe_working_set_t * data_set);
gboolean PromoteRsc(resource_t * rsc, node_t * next, gboolean optional,
pe_working_set_t * data_set);
gboolean RoleError(resource_t * rsc, node_t * next, gboolean optional, pe_working_set_t * data_set);
gboolean NullOp(resource_t * rsc, node_t * next, gboolean optional, pe_working_set_t * data_set);
/* *INDENT-OFF* */
enum rsc_role_e rsc_state_matrix[RSC_ROLE_MAX][RSC_ROLE_MAX] = {
/* Current State */
/* Next State: Unknown Stopped Started Slave Master */
/* Unknown */ { RSC_ROLE_UNKNOWN, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, },
/* Stopped */ { RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STARTED, RSC_ROLE_SLAVE, RSC_ROLE_SLAVE, },
/* Started */ { RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_STARTED, RSC_ROLE_SLAVE, RSC_ROLE_MASTER, },
/* Slave */ { RSC_ROLE_STOPPED, RSC_ROLE_STOPPED, RSC_ROLE_UNKNOWN, RSC_ROLE_SLAVE, RSC_ROLE_MASTER, },
/* Master */ { RSC_ROLE_STOPPED, RSC_ROLE_SLAVE, RSC_ROLE_UNKNOWN, RSC_ROLE_SLAVE, RSC_ROLE_MASTER, },
};
gboolean (*rsc_action_matrix[RSC_ROLE_MAX][RSC_ROLE_MAX])(resource_t*,node_t*,gboolean,pe_working_set_t*) = {
/* Current State */
/* Next State: Unknown Stopped Started Slave Master */
/* Unknown */ { RoleError, StopRsc, RoleError, RoleError, RoleError, },
/* Stopped */ { RoleError, NullOp, StartRsc, StartRsc, RoleError, },
/* Started */ { RoleError, StopRsc, NullOp, NullOp, PromoteRsc, },
/* Slave */ { RoleError, StopRsc, RoleError, NullOp, PromoteRsc, },
/* Master */ { RoleError, RoleError, RoleError, DemoteRsc, NullOp, },
};
/* *INDENT-ON* */
struct capacity_data {
node_t *node;
resource_t *rsc;
gboolean is_enough;
};
static void
check_capacity(gpointer key, gpointer value, gpointer user_data)
{
int required = 0;
int remaining = 0;
struct capacity_data *data = user_data;
required = crm_parse_int(value, "0");
remaining = crm_parse_int(g_hash_table_lookup(data->node->details->utilization, key), "0");
if (required > remaining) {
crm_debug("Node %s has no enough %s for resource %s: required=%d remaining=%d",
data->node->details->uname, (char *)key, data->rsc->id, required, remaining);
data->is_enough = FALSE;
}
}
static gboolean
have_enough_capacity(node_t * node, resource_t * rsc)
{
struct capacity_data data;
data.node = node;
data.rsc = rsc;
data.is_enough = TRUE;
g_hash_table_foreach(rsc->utilization, check_capacity, &data);
return data.is_enough;
}
static gboolean
native_choose_node(resource_t * rsc, node_t * prefer, pe_working_set_t * data_set)
{
/*
1. Sort by weight
2. color.chosen_node = the node (of those with the highest wieght)
with the fewest resources
3. remove color.chosen_node from all other colors
*/
int alloc_details = scores_log_level + 1;
GListPtr nodes = NULL;
node_t *chosen = NULL;
int lpc = 0;
int multiple = 0;
int length = 0;
gboolean result = FALSE;
if (safe_str_neq(data_set->placement_strategy, "default")) {
GListPtr gIter = NULL;
for (gIter = data_set->nodes; gIter != NULL; gIter = gIter->next) {
node_t *node = (node_t *) gIter->data;
if (have_enough_capacity(node, rsc) == FALSE) {
crm_debug("Resource %s cannot be allocated to node %s: none of enough capacity",
rsc->id, node->details->uname);
resource_location(rsc, node, -INFINITY, "__limit_utilization_", data_set);
}
}
dump_node_scores(alloc_details, rsc, "Post-utilization", rsc->allowed_nodes);
}
length = g_hash_table_size(rsc->allowed_nodes);
if (is_not_set(rsc->flags, pe_rsc_provisional)) {
return rsc->allocated_to ? TRUE : FALSE;
}
if (prefer) {
chosen = g_hash_table_lookup(rsc->allowed_nodes, prefer->details->id);
if (chosen && chosen->weight >= 0 && can_run_resources(chosen)) {
crm_trace("Using preferred node %s for %s instead of choosing from %d candidates",
chosen->details->uname, rsc->id, length);
} else if (chosen && chosen->weight < 0) {
crm_trace("Preferred node %s for %s was unavailable", chosen->details->uname, rsc->id);
chosen = NULL;
} else if (chosen && can_run_resources(chosen)) {
crm_trace("Preferred node %s for %s was unsuitable", chosen->details->uname, rsc->id);
chosen = NULL;
} else {
crm_trace("Preferred node %s for %s was unknown", prefer->details->uname, rsc->id);
}
}
if (chosen == NULL && rsc->allowed_nodes) {
nodes = g_hash_table_get_values(rsc->allowed_nodes);
nodes = g_list_sort_with_data(nodes, sort_node_weight, g_list_nth_data(rsc->running_on, 0));
chosen = g_list_nth_data(nodes, 0);
crm_trace("Chose node %s for %s from %d candidates",
chosen ? chosen->details->uname : "<none>", rsc->id, length);
if (chosen && chosen->weight > 0 && can_run_resources(chosen)) {
node_t *running = g_list_nth_data(rsc->running_on, 0);
if (running && can_run_resources(running) == FALSE) {
crm_trace("Current node for %s (%s) can't run resources",
rsc->id, running->details->uname);
running = NULL;
}
for (lpc = 1; lpc < length && running; lpc++) {
node_t *tmp = g_list_nth_data(nodes, lpc);
if (tmp->weight == chosen->weight) {
multiple++;
if (tmp->details == running->details) {
/* prefer the existing node if scores are equal */
chosen = tmp;
}
}
}
}
}
if (multiple > 1) {
int log_level = LOG_INFO;
char *score = score2char(chosen->weight);
if (chosen->weight >= INFINITY) {
log_level = LOG_WARNING;
}
do_crm_log(log_level, "%d nodes with equal score (%s) for"
" running %s resources. Chose %s.",
multiple, score, rsc->id, chosen->details->uname);
crm_free(score);
}
result = native_assign_node(rsc, nodes, chosen, FALSE);
g_list_free(nodes);
return result;
}
static int
node_list_attr_score(GHashTable * list, const char *attr, const char *value)
{
GHashTableIter iter;
node_t *node = NULL;
int best_score = -INFINITY;
const char *best_node = NULL;
if (attr == NULL) {
attr = "#" XML_ATTR_UNAME;
}
g_hash_table_iter_init(&iter, list);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
int weight = node->weight;
if (can_run_resources(node) == FALSE) {
weight = -INFINITY;
}
if (weight > best_score || best_node == NULL) {
const char *tmp = g_hash_table_lookup(node->details->attrs, attr);
if (safe_str_eq(value, tmp)) {
best_score = weight;
best_node = node->details->uname;
}
}
}
if (safe_str_neq(attr, "#" XML_ATTR_UNAME)) {
crm_info("Best score for %s=%s was %s with %d",
attr, value, best_node ? best_node : "<none>", best_score);
}
return best_score;
}
static void
node_hash_update(GHashTable * list1, GHashTable * list2, const char *attr, int factor,
gboolean only_positive)
{
int score = 0;
int new_score = 0;
GHashTableIter iter;
node_t *node = NULL;
if (attr == NULL) {
attr = "#" XML_ATTR_UNAME;
}
g_hash_table_iter_init(&iter, list1);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
CRM_CHECK(node != NULL, continue);
score = node_list_attr_score(list2, attr, g_hash_table_lookup(node->details->attrs, attr));
new_score = merge_weights(factor * score, node->weight);
if (factor < 0 && score < 0) {
/* Negative preference for a node with a negative score
* should not become a positive preference
*
* TODO: Decide if we want to filter only if weight == -INFINITY
*
*/
crm_trace("%s: Filtering %d + %d*%d (factor * score)",
node->details->uname, node->weight, factor, score);
} else if (node->weight == INFINITY_HACK) {
crm_trace("%s: Filtering %d + %d*%d (node < 0)",
node->details->uname, node->weight, factor, score);
} else if (only_positive && new_score < 0 && node->weight > 0) {
node->weight = INFINITY_HACK;
crm_trace("%s: Filtering %d + %d*%d (score > 0)",
node->details->uname, node->weight, factor, score);
} else if (only_positive && new_score < 0 && node->weight == 0) {
crm_trace("%s: Filtering %d + %d*%d (score == 0)",
node->details->uname, node->weight, factor, score);
} else {
crm_trace("%s: %d + %d*%d", node->details->uname, node->weight, factor, score);
node->weight = new_score;
}
}
}
static GHashTable *
node_hash_dup(GHashTable * hash)
{
/* Hack! */
GListPtr list = g_hash_table_get_values(hash);
GHashTable *result = node_hash_from_list(list);
g_list_free(list);
return result;
}
GHashTable *
native_merge_weights(resource_t * rsc, const char *rhs, GHashTable * nodes, const char *attr,
int factor, gboolean allow_rollback, gboolean only_positive)
{
enum pe_weights flags = pe_weights_none;
if (only_positive) {
set_bit_inplace(flags, pe_weights_positive);
}
if (allow_rollback) {
set_bit_inplace(flags, pe_weights_rollback);
}
return rsc_merge_weights(rsc, rhs, nodes, attr, factor, flags);
}
GHashTable *
rsc_merge_weights(resource_t * rsc, const char *rhs, GHashTable * nodes, const char *attr,
int factor, enum pe_weights flags)
{
GHashTable *work = NULL;
int multiplier = 1;
if (factor < 0) {
multiplier = -1;
}
if (is_set(rsc->flags, pe_rsc_merging)) {
crm_info("%s: Breaking dependency loop at %s", rhs, rsc->id);
return nodes;
}
set_bit(rsc->flags, pe_rsc_merging);
if (is_set(flags, pe_weights_init)) {
if (rsc->variant == pe_group && rsc->children) {
GListPtr last = rsc->children;
while (last->next != NULL) {
last = last->next;
}
crm_trace("Merging %s as a group %p %p", rsc->id, rsc->children, last);
work = rsc_merge_weights(last->data, rhs, NULL, attr, factor, flags);
} else {
work = node_hash_dup(rsc->allowed_nodes);
}
clear_bit_inplace(flags, pe_weights_init);
} else {
crm_trace("%s: Combining scores from %s", rhs, rsc->id);
work = node_hash_dup(nodes);
node_hash_update(work, rsc->allowed_nodes, attr, factor,
is_set(flags, pe_weights_positive));
}
if (is_set(flags, pe_weights_rollback) && can_run_any(work) == FALSE) {
crm_info("%s: Rolling back scores from %s", rhs, rsc->id);
g_hash_table_destroy(work);
clear_bit(rsc->flags, pe_rsc_merging);
return nodes;
}
if (can_run_any(work)) {
GListPtr gIter = NULL;
if (is_set(flags, pe_weights_forward)) {
gIter = rsc->rsc_cons;
} else {
gIter = rsc->rsc_cons_lhs;
}
for (; gIter != NULL; gIter = gIter->next) {
resource_t *other = NULL;
rsc_colocation_t *constraint = (rsc_colocation_t *) gIter->data;
if (is_set(flags, pe_weights_forward)) {
other = constraint->rsc_rh;
} else {
other = constraint->rsc_lh;
}
crm_trace("Applying %s (%s)", constraint->id, other->id);
work = rsc_merge_weights(other, rhs, work, constraint->node_attribute,
multiplier * constraint->score / INFINITY, flags);
dump_node_scores(LOG_TRACE, NULL, rhs, work);
}
}
if(is_set(flags, pe_weights_positive)) {
node_t *node = NULL;
GHashTableIter iter;
g_hash_table_iter_init(&iter, work);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
if (node->weight == INFINITY_HACK) {
node->weight = 1;
}
}
}
if (nodes) {
g_hash_table_destroy(nodes);
}
clear_bit(rsc->flags, pe_rsc_merging);
return work;
}
node_t *
native_color(resource_t * rsc, node_t * prefer, pe_working_set_t * data_set)
{
GListPtr gIter = NULL;
int alloc_details = scores_log_level + 1;
const char *class = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);
if (rsc->parent && is_not_set(rsc->parent->flags, pe_rsc_allocating)) {
/* never allocate children on their own */
crm_debug("Escalating allocation of %s to its parent: %s", rsc->id, rsc->parent->id);
rsc->parent->cmds->allocate(rsc->parent, prefer, data_set);
}
if (is_not_set(rsc->flags, pe_rsc_provisional)) {
return rsc->allocated_to;
}
if (is_set(rsc->flags, pe_rsc_allocating)) {
crm_debug("Dependency loop detected involving %s", rsc->id);
return NULL;
}
set_bit(rsc->flags, pe_rsc_allocating);
print_resource(alloc_details, "Allocating: ", rsc, FALSE);
dump_node_scores(alloc_details, rsc, "Pre-allloc", rsc->allowed_nodes);
for (gIter = rsc->rsc_cons; gIter != NULL; gIter = gIter->next) {
rsc_colocation_t *constraint = (rsc_colocation_t *) gIter->data;
GHashTable *archive = NULL;
resource_t *rsc_rh = constraint->rsc_rh;
crm_trace("%s: Pre-Processing %s (%s, %d, %s)",
rsc->id, constraint->id, rsc_rh->id,
constraint->score, role2text(constraint->role_lh));
if (constraint->role_lh >= RSC_ROLE_MASTER
|| (constraint->score < 0 && constraint->score > -INFINITY)) {
archive = node_hash_dup(rsc->allowed_nodes);
}
rsc_rh->cmds->allocate(rsc_rh, NULL, data_set);
rsc->cmds->rsc_colocation_lh(rsc, rsc_rh, constraint);
if (archive && can_run_any(rsc->allowed_nodes) == FALSE) {
crm_info("%s: Rolling back scores from %s", rsc->id, rsc_rh->id);
g_hash_table_destroy(rsc->allowed_nodes);
rsc->allowed_nodes = archive;
archive = NULL;
}
if (archive) {
g_hash_table_destroy(archive);
}
}
dump_node_scores(alloc_details, rsc, "Post-coloc", rsc->allowed_nodes);
for (gIter = rsc->rsc_cons_lhs; gIter != NULL; gIter = gIter->next) {
rsc_colocation_t *constraint = (rsc_colocation_t *) gIter->data;
rsc->allowed_nodes =
constraint->rsc_lh->cmds->merge_weights(constraint->rsc_lh, rsc->id, rsc->allowed_nodes,
constraint->node_attribute,
constraint->score / INFINITY, TRUE, FALSE);
}
for (gIter = rsc->rsc_tickets; gIter != NULL; gIter = gIter->next) {
rsc_ticket_t *rsc_ticket = (rsc_ticket_t *) gIter->data;
if (rsc_ticket->ticket->granted == FALSE) {
rsc_ticket_constraint(rsc, rsc_ticket, data_set);
}
}
print_resource(LOG_DEBUG_2, "Allocating: ", rsc, FALSE);
if (rsc->next_role == RSC_ROLE_STOPPED) {
crm_trace("Making sure %s doesn't get allocated", rsc->id);
/* make sure it doesnt come up again */
resource_location(rsc, NULL, -INFINITY, XML_RSC_ATTR_TARGET_ROLE, data_set);
}
dump_node_scores(show_scores ? 0 : scores_log_level, rsc, __PRETTY_FUNCTION__,
rsc->allowed_nodes);
if (is_set(data_set->flags, pe_flag_stonith_enabled)
&& is_set(data_set->flags, pe_flag_have_stonith_resource) == FALSE) {
clear_bit(rsc->flags, pe_rsc_managed);
}
if (is_not_set(rsc->flags, pe_rsc_managed)) {
const char *reason = NULL;
node_t *assign_to = NULL;
rsc->next_role = rsc->role;
if (rsc->running_on == NULL) {
reason = "inactive";
} else if (rsc->role == RSC_ROLE_MASTER) {
assign_to = rsc->running_on->data;
reason = "master";
} else if (is_set(rsc->flags, pe_rsc_failed)) {
reason = "failed";
} else {
assign_to = rsc->running_on->data;
reason = "active";
}
crm_info("Unmanaged resource %s allocated to %s: %s", rsc->id,
assign_to ? assign_to->details->uname : "'nowhere'", reason);
native_assign_node(rsc, NULL, assign_to, TRUE);
} else if (is_set(data_set->flags, pe_flag_stop_everything)
&& safe_str_neq(class, "stonith")) {
crm_debug("Forcing %s to stop", rsc->id);
native_assign_node(rsc, NULL, NULL, TRUE);
} else if (is_set(rsc->flags, pe_rsc_provisional)
&& native_choose_node(rsc, prefer, data_set)) {
crm_trace("Allocated resource %s to %s", rsc->id, rsc->allocated_to->details->uname);
} else if (rsc->allocated_to == NULL) {
if (is_not_set(rsc->flags, pe_rsc_orphan)) {
crm_info("Resource %s cannot run anywhere", rsc->id);
} else if (rsc->running_on != NULL) {
crm_info("Stopping orphan resource %s", rsc->id);
}
} else {
crm_debug("Pre-Allocated resource %s to %s", rsc->id, rsc->allocated_to->details->uname);
}
clear_bit(rsc->flags, pe_rsc_allocating);
print_resource(LOG_DEBUG_3, "Allocated ", rsc, TRUE);
return rsc->allocated_to;
}
static gboolean
is_op_dup(resource_t * rsc, const char *name, const char *interval)
{
gboolean dup = FALSE;
const char *id = NULL;
const char *value = NULL;
xmlNode *operation = NULL;
for (operation = __xml_first_child(rsc->ops_xml); operation != NULL;
operation = __xml_next(operation)) {
if (crm_str_eq((const char *)operation->name, "op", TRUE)) {
value = crm_element_value(operation, "name");
if (safe_str_neq(value, name)) {
continue;
}
value = crm_element_value(operation, XML_LRM_ATTR_INTERVAL);
if (value == NULL) {
value = "0";
}
if (safe_str_neq(value, interval)) {
continue;
}
if (id == NULL) {
id = ID(operation);
} else {
crm_config_err("Operation %s is a duplicate of %s", ID(operation), id);
crm_config_err
("Do not use the same (name, interval) combination more than once per resource");
dup = TRUE;
}
}
}
return dup;
}
void
RecurringOp(resource_t * rsc, action_t * start, node_t * node,
xmlNode * operation, pe_working_set_t * data_set)
{
char *key = NULL;
const char *name = NULL;
const char *value = NULL;
const char *interval = NULL;
const char *node_uname = NULL;
unsigned long long interval_ms = 0;
action_t *mon = NULL;
gboolean is_optional = TRUE;
GListPtr possible_matches = NULL;
/* Only process for the operations without role="Stopped" */
value = crm_element_value(operation, "role");
if (value && text2role(value) == RSC_ROLE_STOPPED) {
return;
}
crm_trace("Creating recurring action %s for %s in role %s on %s",
ID(operation), rsc->id, role2text(rsc->next_role),
node ? node->details->uname : "n/a");
if (node != NULL) {
node_uname = node->details->uname;
}
interval = crm_element_value(operation, XML_LRM_ATTR_INTERVAL);
interval_ms = crm_get_interval(interval);
if (interval_ms == 0) {
return;
}
name = crm_element_value(operation, "name");
if (is_op_dup(rsc, name, interval)) {
return;
}
if (safe_str_eq(name, RSC_STOP)
|| safe_str_eq(name, RSC_START)
|| safe_str_eq(name, RSC_DEMOTE)
|| safe_str_eq(name, RSC_PROMOTE)
) {
crm_config_err("Invalid recurring action %s wth name: '%s'", ID(operation), name);
return;
}
key = generate_op_key(rsc->id, name, interval_ms);
if (find_rsc_op_entry(rsc, key) == NULL) {
/* disabled */
crm_free(key);
return;
}
if (start != NULL) {
crm_trace("Marking %s %s due to %s",
key, is_set(start->flags, pe_action_optional) ? "optional" : "manditory",
start->uuid);
is_optional = (rsc->cmds->action_flags(start, NULL) & pe_action_optional);
} else {
crm_trace("Marking %s optional", key);
is_optional = TRUE;
}
/* start a monitor for an already active resource */
possible_matches = find_actions_exact(rsc->actions, key, node);
if (possible_matches == NULL) {
is_optional = FALSE;
crm_trace("Marking %s manditory: not active", key);
} else {
g_list_free(possible_matches);
}
if ((rsc->next_role == RSC_ROLE_MASTER && value == NULL)
|| (value != NULL && text2role(value) != rsc->next_role)) {
int log_level = LOG_DEBUG_2;
const char *result = "Ignoring";
if (is_optional) {
char *local_key = crm_strdup(key);
log_level = LOG_INFO;
result = "Cancelling";
/* its running : cancel it */
mon = custom_action(rsc, local_key, RSC_CANCEL, node, FALSE, TRUE, data_set);
crm_free(mon->task);
mon->task = crm_strdup(RSC_CANCEL);
add_hash_param(mon->meta, XML_LRM_ATTR_INTERVAL, interval);
add_hash_param(mon->meta, XML_LRM_ATTR_TASK, name);
local_key = NULL;
switch (rsc->role) {
case RSC_ROLE_SLAVE:
case RSC_ROLE_STARTED:
if (rsc->next_role == RSC_ROLE_MASTER) {
local_key = promote_key(rsc);
} else if (rsc->next_role == RSC_ROLE_STOPPED) {
local_key = stop_key(rsc);
}
break;
case RSC_ROLE_MASTER:
local_key = demote_key(rsc);
break;
default:
break;
}
if (local_key) {
custom_action_order(rsc, NULL, mon, rsc, local_key, NULL,
pe_order_runnable_left, data_set);
}
mon = NULL;
}
do_crm_log(log_level, "%s action %s (%s vs. %s)",
result, key, value ? value : role2text(RSC_ROLE_SLAVE),
role2text(rsc->next_role));
crm_free(key);
key = NULL;
return;
}
mon = custom_action(rsc, key, name, node, is_optional, TRUE, data_set);
key = mon->uuid;
if (is_optional) {
crm_trace("%s\t %s (optional)", crm_str(node_uname), mon->uuid);
}
if (start == NULL || is_set(start->flags, pe_action_runnable) == FALSE) {
crm_debug("%s\t %s (cancelled : start un-runnable)", crm_str(node_uname), mon->uuid);
update_action_flags(mon, pe_action_runnable | pe_action_clear);
} else if (node == NULL || node->details->online == FALSE || node->details->unclean) {
crm_debug("%s\t %s (cancelled : no node available)", crm_str(node_uname), mon->uuid);
update_action_flags(mon, pe_action_runnable | pe_action_clear);
} else if (is_set(mon->flags, pe_action_optional) == FALSE) {
crm_info(" Start recurring %s (%llus) for %s on %s", mon->task, interval_ms / 1000,
rsc->id, crm_str(node_uname));
}
if (rsc->next_role == RSC_ROLE_MASTER) {
char *running_master = crm_itoa(EXECRA_RUNNING_MASTER);
add_hash_param(mon->meta, XML_ATTR_TE_TARGET_RC, running_master);
crm_free(running_master);
}
if (node == NULL || is_set(rsc->flags, pe_rsc_managed)) {
custom_action_order(rsc, start_key(rsc), NULL,
NULL, crm_strdup(key), mon,
pe_order_implies_then | pe_order_runnable_left, data_set);
if (rsc->next_role == RSC_ROLE_MASTER) {
custom_action_order(rsc, promote_key(rsc), NULL,
rsc, NULL, mon,
pe_order_optional | pe_order_runnable_left, data_set);
} else if (rsc->role == RSC_ROLE_MASTER) {
custom_action_order(rsc, demote_key(rsc), NULL,
rsc, NULL, mon,
pe_order_optional | pe_order_runnable_left, data_set);
}
}
}
void
Recurring(resource_t * rsc, action_t * start, node_t * node, pe_working_set_t * data_set)
{
if (is_not_set(data_set->flags, pe_flag_maintenance_mode)) {
xmlNode *operation = NULL;
for (operation = __xml_first_child(rsc->ops_xml); operation != NULL;
operation = __xml_next(operation)) {
if (crm_str_eq((const char *)operation->name, "op", TRUE)) {
RecurringOp(rsc, start, node, operation, data_set);
}
}
}
}
void
RecurringOp_Stopped(resource_t * rsc, action_t * start, node_t * node,
xmlNode * operation, pe_working_set_t * data_set)
{
char *key = NULL;
const char *name = NULL;
const char *role = NULL;
const char *interval = NULL;
const char *node_uname = NULL;
unsigned long long interval_ms = 0;
GListPtr possible_matches = NULL;
GListPtr gIter = NULL;
/* TODO: Support of non-unique clone */
if (is_set(rsc->flags, pe_rsc_unique) == FALSE) {
return;
}
/* Only process for the operations with role="Stopped" */
role = crm_element_value(operation, "role");
if (role == NULL || text2role(role) != RSC_ROLE_STOPPED) {
return;
}
crm_trace
("Creating recurring actions %s for %s in role %s on nodes where it'll not be running",
ID(operation), rsc->id, role2text(rsc->next_role));
if (node != NULL) {
node_uname = node->details->uname;
}
interval = crm_element_value(operation, XML_LRM_ATTR_INTERVAL);
interval_ms = crm_get_interval(interval);
if (interval_ms == 0) {
return;
}
name = crm_element_value(operation, "name");
if (is_op_dup(rsc, name, interval)) {
return;
}
if (safe_str_eq(name, RSC_STOP)
|| safe_str_eq(name, RSC_START)
|| safe_str_eq(name, RSC_DEMOTE)
|| safe_str_eq(name, RSC_PROMOTE)
) {
crm_config_err("Invalid recurring action %s wth name: '%s'", ID(operation), name);
return;
}
key = generate_op_key(rsc->id, name, interval_ms);
if (find_rsc_op_entry(rsc, key) == NULL) {
/* disabled */
crm_free(key);
return;
}
/* if the monitor exists on the node where the resource will be running, cancel it */
if (node != NULL) {
possible_matches = find_actions_exact(rsc->actions, key, node);
if (possible_matches) {
action_t *cancel_op = NULL;
char *local_key = crm_strdup(key);
g_list_free(possible_matches);
cancel_op = custom_action(rsc, local_key, RSC_CANCEL, node, FALSE, TRUE, data_set);
crm_free(cancel_op->task);
cancel_op->task = crm_strdup(RSC_CANCEL);
add_hash_param(cancel_op->meta, XML_LRM_ATTR_INTERVAL, interval);
add_hash_param(cancel_op->meta, XML_LRM_ATTR_TASK, name);
local_key = NULL;
if (rsc->next_role == RSC_ROLE_STARTED || rsc->next_role == RSC_ROLE_SLAVE) {
/* rsc->role == RSC_ROLE_STOPPED: cancel the monitor before start */
/* rsc->role == RSC_ROLE_STARTED: for a migration, cancel the monitor on the target node before start */
custom_action_order(rsc, NULL, cancel_op, rsc, start_key(rsc), NULL,
pe_order_runnable_left, data_set);
}
crm_info("Cancel action %s (%s vs. %s) on %s",
key, role, role2text(rsc->next_role), crm_str(node_uname));
}
}
for (gIter = data_set->nodes; gIter != NULL; gIter = gIter->next) {
node_t *stop_node = (node_t *) gIter->data;
const char *stop_node_uname = stop_node->details->uname;
gboolean is_optional = TRUE;
gboolean probe_is_optional = TRUE;
gboolean stop_is_optional = TRUE;
action_t *stopped_mon = NULL;
char *rc_inactive = NULL;
GListPtr probe_complete_ops = NULL;
GListPtr stop_ops = NULL;
GListPtr local_gIter = NULL;
char *stop_op_key = NULL;
if (node_uname && safe_str_eq(stop_node_uname, node_uname)) {
continue;
}
crm_trace("Creating recurring action %s for %s on %s",
ID(operation), rsc->id, crm_str(stop_node_uname));
/* start a monitor for an already stopped resource */
possible_matches = find_actions_exact(rsc->actions, key, stop_node);
if (possible_matches == NULL) {
crm_trace("Marking %s manditory on %s: not active", key, crm_str(stop_node_uname));
is_optional = FALSE;
} else {
crm_trace("Marking %s optional on %s: already active", key, crm_str(stop_node_uname));
is_optional = TRUE;
g_list_free(possible_matches);
}
stopped_mon = custom_action(rsc, crm_strdup(key), name, stop_node,
is_optional, TRUE, data_set);
rc_inactive = crm_itoa(EXECRA_NOT_RUNNING);
add_hash_param(stopped_mon->meta, XML_ATTR_TE_TARGET_RC, rc_inactive);
crm_free(rc_inactive);
probe_complete_ops = find_actions(data_set->actions, CRM_OP_PROBED, NULL);
for (local_gIter = probe_complete_ops; local_gIter != NULL; local_gIter = local_gIter->next) {
action_t *probe_complete = (action_t *) local_gIter->data;
if (probe_complete->node == NULL) {
if (is_set(probe_complete->flags, pe_action_optional) == FALSE) {
probe_is_optional = FALSE;
}
if (is_set(probe_complete->flags, pe_action_runnable) == FALSE) {
crm_debug("%s\t %s (cancelled : probe un-runnable)",
crm_str(stop_node_uname), stopped_mon->uuid);
update_action_flags(stopped_mon, pe_action_runnable | pe_action_clear);
}
if (is_set(rsc->flags, pe_rsc_managed)) {
custom_action_order(NULL, NULL, probe_complete,
NULL, crm_strdup(key), stopped_mon,
pe_order_optional, data_set);
}
break;
}
}
if (probe_complete_ops) {
g_list_free(probe_complete_ops);
}
stop_op_key = stop_key(rsc);
stop_ops = find_actions_exact(rsc->actions, stop_op_key, stop_node);
for (local_gIter = stop_ops; local_gIter != NULL; local_gIter = local_gIter->next) {
action_t *stop = (action_t *) local_gIter->data;
if (is_set(stop->flags, pe_action_optional) == FALSE) {
stop_is_optional = FALSE;
}
if (is_set(stop->flags, pe_action_runnable) == FALSE) {
crm_debug("%s\t %s (cancelled : stop un-runnable)",
crm_str(stop_node_uname), stopped_mon->uuid);
update_action_flags(stopped_mon, pe_action_runnable | pe_action_clear);
}
if (is_set(rsc->flags, pe_rsc_managed)) {
custom_action_order(rsc, crm_strdup(stop_op_key), stop,
NULL, crm_strdup(key), stopped_mon,
pe_order_implies_then | pe_order_runnable_left, data_set);
}
}
if (stop_ops) {
g_list_free(stop_ops);
}
crm_free(stop_op_key);
if (is_optional == FALSE && probe_is_optional && stop_is_optional
&& is_set(rsc->flags, pe_rsc_managed) == FALSE) {
crm_trace("Marking %s optional on %s due to unmanaged",
key, crm_str(stop_node_uname));
update_action_flags(stopped_mon, pe_action_optional);
}
if (is_set(stopped_mon->flags, pe_action_optional)) {
crm_trace("%s\t %s (optional)", crm_str(stop_node_uname), stopped_mon->uuid);
}
if (stop_node->details->online == FALSE || stop_node->details->unclean) {
crm_debug("%s\t %s (cancelled : no node available)",
crm_str(stop_node_uname), stopped_mon->uuid);
update_action_flags(stopped_mon, pe_action_runnable | pe_action_clear);
}
if (is_set(stopped_mon->flags, pe_action_runnable)
&& is_set(stopped_mon->flags, pe_action_optional) == FALSE) {
crm_notice(" Start recurring %s (%llus) for %s on %s", stopped_mon->task,
interval_ms / 1000, rsc->id, crm_str(stop_node_uname));
}