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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 2.1 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 VARIANT_NATIVE 1
#include <lib/pengine/variant.h>
gboolean at_stack_bottom(resource_t *rsc);
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 create_notifications(resource_t *rsc, pe_working_set_t *data_set);
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 pe_pre_notify(
resource_t *rsc, node_t *node, action_t *op,
notify_data_t *n_data, 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);
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, },
};
static gboolean
native_choose_node(resource_t *rsc)
{
/*
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
*/
GListPtr nodes = NULL;
node_t *chosen = NULL;
int lpc = 0;
int multiple = 0;
int length = g_list_length(rsc->allowed_nodes);
if(is_not_set(rsc->flags, pe_rsc_provisional)) {
return rsc->allocated_to?TRUE:FALSE;
}
crm_debug_3("Choosing node for %s from %d candidates",
rsc->id, length);
if(rsc->allowed_nodes) {
rsc->allowed_nodes = g_list_sort(rsc->allowed_nodes, sort_node_weight);
nodes = rsc->allowed_nodes;
chosen = g_list_nth_data(nodes, 0);
if(chosen
&& chosen->weight > 0
&& can_run_resources(chosen)) {
node_t *running = g_list_nth_data(rsc->running_on, 0);
if(can_run_resources(running) == FALSE) {
running = NULL;
}
for(lpc = 1; lpc < length; lpc++) {
node_t *tmp = g_list_nth_data(nodes, lpc);
if(tmp->weight == chosen->weight) {
multiple++;
if(running && 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);
}
return native_assign_node(rsc, nodes, chosen, FALSE);
}
int node_list_attr_score(GListPtr list, const char *attr, const char *value)
{
int best_score = -INFINITY;
const char *best_node = NULL;
if(attr == NULL) {
attr = "#"XML_ATTR_UNAME;
}
slist_iter(node, node_t, list, lpc,
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_list_update(GListPtr list1, GListPtr list2, const char *attr, int factor)
{
int score = 0;
if(attr == NULL) {
attr = "#"XML_ATTR_UNAME;
}
slist_iter(
node, node_t, list1, lpc,
CRM_CHECK(node != NULL, continue);
score = node_list_attr_score(list2, attr, g_hash_table_lookup(node->details->attrs, attr));
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
*
*/
continue;
}
crm_debug_2("%s: %d + %d*%d",
node->details->uname, node->weight, factor, score);
node->weight = merge_weights(factor*score, node->weight);
);
}
GListPtr
native_merge_weights(
resource_t *rsc, const char *rhs, GListPtr nodes, const char *attr, int factor, gboolean allow_rollback)
{
GListPtr archive = NULL;
if(is_set(rsc->flags, pe_rsc_merging)) {
crm_info("%s: Breaking dependancy loop at %s", rhs, rsc->id);
return nodes;
} else if(is_not_set(rsc->flags, pe_rsc_provisional)) {
crm_debug_4("%s: not provisional", rsc->id);
return nodes;
}
set_bit(rsc->flags, pe_rsc_merging);
crm_debug_2("%s: Combining scores from %s", rhs, rsc->id);
if(allow_rollback) {
archive = node_list_dup(nodes, FALSE, FALSE);
}
node_list_update(nodes, rsc->allowed_nodes, attr, factor);
if(archive && can_run_any(nodes) == FALSE) {
crm_info("%s: Rolling back scores from %s", rhs, rsc->id);
pe_free_shallow_adv(nodes, TRUE);
nodes = archive;
goto bail;
}
pe_free_shallow_adv(archive, TRUE);
slist_iter(
constraint, rsc_colocation_t, rsc->rsc_cons_lhs, lpc,
nodes = constraint->rsc_lh->cmds->merge_weights(
constraint->rsc_lh, rhs, nodes,
constraint->node_attribute,
constraint->score/INFINITY, allow_rollback);
);
bail:
clear_bit(rsc->flags, pe_rsc_merging);
return nodes;
}
node_t *
native_color(resource_t *rsc, pe_working_set_t *data_set)
{
int alloc_details = scores_log_level+1;
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->color(rsc->parent, 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("Dependancy 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);
slist_iter(
constraint, rsc_colocation_t, rsc->rsc_cons, lpc,
resource_t *rsc_rh = constraint->rsc_rh;
crm_debug_2("%s: Pre-Processing %s (%s)",
rsc->id, constraint->id, rsc_rh->id);
rsc_rh->cmds->color(rsc_rh, data_set);
rsc->cmds->rsc_colocation_lh(rsc, rsc_rh, constraint);
);
dump_node_scores(alloc_details, rsc, "Post-coloc", rsc->allowed_nodes);
slist_iter(
constraint, rsc_colocation_t, rsc->rsc_cons_lhs, lpc,
rsc->allowed_nodes = constraint->rsc_lh->cmds->merge_weights(
constraint->rsc_lh, rsc->id, rsc->allowed_nodes,
constraint->node_attribute, constraint->score/INFINITY, TRUE);
);
print_resource(LOG_DEBUG_2, "Allocating: ", rsc, FALSE);
if(rsc->next_role == RSC_ROLE_STOPPED) {
crm_debug_2("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_not_set(rsc->flags, pe_rsc_managed)) {
const char *reason = NULL;
node_t *assign_to = NULL;
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(rsc->flags, pe_rsc_provisional)
&& native_choose_node(rsc) ) {
crm_debug_3("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)) {
pe_warn("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;
xml_child_iter_filter(
rsc->ops_xml, operation, "op",
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;
crm_debug_2("Creating recurring action %s for %s in role %s",
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;
}
key = generate_op_key(rsc->id, name, interval_ms);
if(find_rsc_op_entry(rsc, key) == NULL) {
/* disabled */
return;
}
if(start != NULL) {
crm_debug_3("Marking %s %s due to %s",
key, start->optional?"optional":"manditory",
start->uuid);
is_optional = start->optional;
} else {
crm_debug_2("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_debug_3("Marking %s manditory: not active", key);
} else {
g_list_free(possible_matches);
}
value = crm_element_value(operation, "role");
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_debug_2("%s\t %s (optional)",
crm_str(node_uname), mon->uuid);
}
if(start == NULL || start->runnable == FALSE) {
crm_debug("%s\t %s (cancelled : start un-runnable)",
crm_str(node_uname), mon->uuid);
mon->runnable = FALSE;
} 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);
mon->runnable = FALSE;
} else if(mon->optional == FALSE) {
crm_notice(" 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_right|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)) {
xml_child_iter_filter(
rsc->ops_xml, operation, "op",
RecurringOp(rsc, start, node, operation, data_set);
);
}
}
void native_create_actions(resource_t *rsc, pe_working_set_t *data_set)
{
action_t *start = NULL;
node_t *chosen = NULL;
enum rsc_role_e role = RSC_ROLE_UNKNOWN;
enum rsc_role_e next_role = RSC_ROLE_UNKNOWN;
crm_debug_2("Creating actions for %s", rsc->id);
chosen = rsc->allocated_to;
if(chosen != NULL) {
CRM_CHECK(rsc->next_role != RSC_ROLE_UNKNOWN, rsc->next_role = RSC_ROLE_STARTED);
}
get_rsc_attributes(rsc->parameters, rsc, chosen, data_set);
crm_debug_2("%s: %s->%s", rsc->id,
role2text(rsc->role), role2text(rsc->next_role));
if(g_list_length(rsc->running_on) > 1) {
if(rsc->recovery_type == recovery_stop_start) {
pe_proc_warn("Attempting recovery of resource %s", rsc->id);
if(rsc->role == RSC_ROLE_MASTER) {
DemoteRsc(rsc, NULL, FALSE, data_set);
}
StopRsc(rsc, NULL, FALSE, data_set);
rsc->role = RSC_ROLE_STOPPED;
}
} else if(rsc->running_on != NULL) {
node_t *current = rsc->running_on->data;
NoRoleChange(rsc, current, chosen, data_set);
} else if(rsc->role == RSC_ROLE_STOPPED && rsc->next_role == RSC_ROLE_STOPPED) {
char *key = start_key(rsc);
GListPtr possible_matches = find_actions(rsc->actions, key, NULL);
slist_iter(
action, action_t, possible_matches, lpc,
action->optional = TRUE;
/* action->pseudo = TRUE; */
);
g_list_free(possible_matches);
crm_debug_2("Stopping a stopped resource");
crm_free(key);
goto do_recurring;
} else if(rsc->role != RSC_ROLE_STOPPED) {
/* A cheap trick to account for the fact that Master/Slave groups may not be
* completely running when we set their role to Slave
*/
crm_debug_2("Resetting %s.role = %s (was %s)",
rsc->id, role2text(RSC_ROLE_STOPPED), role2text(rsc->role));
rsc->role = RSC_ROLE_STOPPED;
}
role = rsc->role;
while(role != rsc->next_role) {
next_role = rsc_state_matrix[role][rsc->next_role];
crm_debug_2("Executing: %s->%s (%s)",
role2text(role), role2text(next_role), rsc->id);
if(rsc_action_matrix[role][next_role](
rsc, chosen, FALSE, data_set) == FALSE) {
break;
}
role = next_role;
}
do_recurring:
if(rsc->next_role != RSC_ROLE_STOPPED || is_set(rsc->flags, pe_rsc_managed) == FALSE) {
start = start_action(rsc, chosen, TRUE);
Recurring(rsc, start, chosen, data_set);
}
}
void native_internal_constraints(resource_t *rsc, pe_working_set_t *data_set)
{
int type = pe_order_optional;
const char *class = crm_element_value(rsc->xml, XML_AGENT_ATTR_CLASS);
action_t *all_stopped = get_pseudo_op(ALL_STOPPED, data_set);
if(rsc->variant == pe_native) {
type |= pe_order_implies_right;
}
if(rsc->parent == NULL || rsc->parent->variant == pe_group) {
type |= pe_order_restart;
}
new_rsc_order(rsc, RSC_STOP, rsc, RSC_START, type, data_set);
new_rsc_order(rsc, RSC_DEMOTE, rsc, RSC_STOP,
pe_order_demote_stop, data_set);
new_rsc_order(rsc, RSC_START, rsc, RSC_PROMOTE,
pe_order_runnable_left, data_set);
new_rsc_order(rsc, RSC_DELETE, rsc, RSC_START,
pe_order_optional, data_set);
if(is_set(rsc->flags, pe_rsc_notify)) {
new_rsc_order(rsc, "confirmed-post_notify_start", rsc, "pre_notify_promote",
pe_order_optional, data_set);
new_rsc_order(rsc, "confirmed-post_notify_demote", rsc, "pre_notify_stop",
pe_order_optional, data_set);
}
if(is_not_set(rsc->flags, pe_rsc_managed)) {
crm_debug_3("Skipping fencing constraints for unmanaged resource: %s", rsc->id);
return;
}
if(rsc->variant == pe_native && safe_str_neq(class, "stonith")) {
custom_action_order(
rsc, stop_key(rsc), NULL,
NULL, crm_strdup(all_stopped->task), all_stopped,
pe_order_implies_right|pe_order_runnable_left, data_set);
}
}
void native_rsc_colocation_lh(
resource_t *rsc_lh, resource_t *rsc_rh, rsc_colocation_t *constraint)
{
if(rsc_lh == NULL) {
pe_err("rsc_lh was NULL for %s", constraint->id);
return;
} else if(constraint->rsc_rh == NULL) {
pe_err("rsc_rh was NULL for %s", constraint->id);
return;
}
crm_debug_2("Processing colocation constraint between %s and %s",
rsc_lh->id, rsc_rh->id);
rsc_rh->cmds->rsc_colocation_rh(rsc_lh, rsc_rh, constraint);
}
static gboolean
filter_colocation_constraint(
resource_t *rsc_lh, resource_t *rsc_rh, rsc_colocation_t *constraint)
{
int level = LOG_DEBUG_4;
if(constraint->score == 0){
return FALSE;
}
if(constraint->score > 0
&& constraint->role_lh != RSC_ROLE_UNKNOWN
&& constraint->role_lh != rsc_lh->next_role) {
do_crm_log_unlikely(level, "LH: Skipping constraint: \"%s\" state filter",
role2text(constraint->role_rh));
return FALSE;
}
if(constraint->score > 0
&& constraint->role_rh != RSC_ROLE_UNKNOWN
&& constraint->role_rh != rsc_rh->next_role) {
do_crm_log_unlikely(level, "RH: Skipping constraint: \"%s\" state filter",
role2text(constraint->role_rh));
return FALSE;
}
if(constraint->score < 0
&& constraint->role_lh != RSC_ROLE_UNKNOWN
&& constraint->role_lh == rsc_lh->next_role) {
do_crm_log_unlikely(level, "LH: Skipping -ve constraint: \"%s\" state filter",
role2text(constraint->role_rh));
return FALSE;
}
if(constraint->score < 0
&& constraint->role_rh != RSC_ROLE_UNKNOWN
&& constraint->role_rh == rsc_rh->next_role) {
do_crm_log_unlikely(level, "RH: Skipping -ve constraint: \"%s\" state filter",
role2text(constraint->role_rh));
return FALSE;
}
return TRUE;
}
static void
colocation_match(
resource_t *rsc_lh, resource_t *rsc_rh, rsc_colocation_t *constraint)
{
const char *tmp = NULL;
const char *value = NULL;
gboolean do_check = FALSE;
const char *attribute = "#id";
if(constraint->node_attribute != NULL) {
attribute = constraint->node_attribute;
}
if(rsc_rh->allocated_to) {
value = g_hash_table_lookup(
rsc_rh->allocated_to->details->attrs, attribute);
do_check = TRUE;
} else if(constraint->score < 0) {
/* nothing to do:
* anti-colocation with something thats not running
*/
return;
}
slist_iter(
node, node_t, rsc_lh->allowed_nodes, lpc,
tmp = g_hash_table_lookup(node->details->attrs, attribute);
if(do_check && safe_str_eq(tmp, value)) {
if(constraint->score < INFINITY) {
crm_debug_2("%s: %s.%s += %d", constraint->id, rsc_lh->id,
node->details->uname, constraint->score);
node->weight = merge_weights(
constraint->score, node->weight);
}
} else if(do_check == FALSE || constraint->score >= INFINITY) {
crm_debug_2("%s: %s.%s -= %d (%s)", constraint->id, rsc_lh->id,
node->details->uname, constraint->score, do_check?"failed":"unallocated");
node->weight = merge_weights(-constraint->score, node->weight);
}
);
}
void native_rsc_colocation_rh(
resource_t *rsc_lh, resource_t *rsc_rh, rsc_colocation_t *constraint)
{
crm_debug_2("%sColocating %s with %s (%s, weight=%d)",
constraint->score >= 0?"":"Anti-",
rsc_lh->id, rsc_rh->id, constraint->id, constraint->score);
if(filter_colocation_constraint(rsc_lh, rsc_rh, constraint) == FALSE) {
return;
}
if(is_set(rsc_rh->flags, pe_rsc_provisional)) {
return;
} else if(is_not_set(rsc_lh->flags, pe_rsc_provisional)) {
/* error check */
struct node_shared_s *details_lh;
struct node_shared_s *details_rh;
if((constraint->score > -INFINITY) && (constraint->score < INFINITY)) {
return;
}
details_rh = rsc_rh->allocated_to?rsc_rh->allocated_to->details:NULL;
details_lh = rsc_lh->allocated_to?rsc_lh->allocated_to->details:NULL;
if(constraint->score == INFINITY && details_lh != details_rh) {
crm_err("%s and %s are both allocated"
" but to different nodes: %s vs. %s",
rsc_lh->id, rsc_rh->id,
details_lh?details_lh->uname:"n/a",
details_rh?details_rh->uname:"n/a");
} else if(constraint->score == -INFINITY && details_lh == details_rh) {
crm_err("%s and %s are both allocated"
" but to the SAME node: %s",
rsc_lh->id, rsc_rh->id,
details_rh?details_rh->uname:"n/a");
}
return;
} else {
colocation_match(rsc_lh, rsc_rh, constraint);
}
}
static GListPtr find_actions_by_task(GListPtr actions, resource_t *rsc, const char *original_key)
{
GListPtr list = NULL;
list = find_actions(actions, original_key, NULL);
if(list == NULL) {
/* we're potentially searching a child of the original resource */
char *key = NULL;
char *tmp = NULL;
char *task = NULL;
int interval = 0;
if(parse_op_key(original_key, &tmp, &task, &interval)) {
key = generate_op_key(rsc->id, task, interval);
list = find_actions(actions, key, NULL);
} else {
crm_err("search key: %s", original_key);
}
crm_free(key);
crm_free(tmp);
crm_free(task);
}
return list;
}
void native_rsc_order_lh(resource_t *lh_rsc, order_constraint_t *order, pe_working_set_t *data_set)
{
GListPtr lh_actions = NULL;
action_t *lh_action = order->lh_action;
resource_t *rh_rsc = order->rh_rsc;
crm_debug_3("Processing LH of ordering constraint %d", order->id);
CRM_ASSERT(lh_rsc != NULL);
if(lh_action != NULL) {
lh_actions = g_list_append(NULL, lh_action);
} else if(lh_action == NULL) {
lh_actions = find_actions_by_task(
lh_rsc->actions, lh_rsc, order->lh_action_task);
}
if(lh_actions == NULL && lh_rsc != rh_rsc) {
char *key = NULL;
char *rsc_id = NULL;
char *op_type = NULL;
int interval = 0;
crm_debug_2("No LH-Side (%s/%s) found for constraint %d with %s - creating",
lh_rsc->id, order->lh_action_task,
order->id, order->rh_action_task);
parse_op_key(
order->lh_action_task, &rsc_id, &op_type, &interval);
key = generate_op_key(lh_rsc->id, op_type, interval);
lh_action = custom_action(lh_rsc, key, op_type,
NULL, TRUE, TRUE, data_set);
if(lh_rsc->fns->state(lh_rsc, TRUE) == RSC_ROLE_STOPPED
&& safe_str_eq(op_type, RSC_STOP)) {
lh_action->pseudo = TRUE;
lh_action->runnable = TRUE;
}
lh_actions = g_list_append(NULL, lh_action);
crm_free(op_type);
crm_free(rsc_id);
}
slist_iter(
lh_action_iter, action_t, lh_actions, lpc,
if(rh_rsc == NULL && order->rh_action) {
rh_rsc = order->rh_action->rsc;
}
if(rh_rsc) {
rh_rsc->cmds->rsc_order_rh(
lh_action_iter, rh_rsc, order);
} else if(order->rh_action) {
order_actions(
lh_action_iter, order->rh_action, order->type);
}
);
pe_free_shallow_adv(lh_actions, FALSE);
}
void native_rsc_order_rh(
action_t *lh_action, resource_t *rsc, order_constraint_t *order)
{
GListPtr rh_actions = NULL;
action_t *rh_action = NULL;
CRM_CHECK(rsc != NULL, return);
CRM_CHECK(order != NULL, return);
rh_action = order->rh_action;
crm_debug_3("Processing RH of ordering constraint %d", order->id);
if(rh_action != NULL) {
rh_actions = g_list_append(NULL, rh_action);
} else if(rsc != NULL) {
rh_actions = find_actions_by_task(
rsc->actions, rsc, order->rh_action_task);
}
if(rh_actions == NULL) {
crm_debug_4("No RH-Side (%s/%s) found for constraint..."
" ignoring", rsc->id,order->rh_action_task);
if(lh_action) {
crm_debug_4("LH-Side was: %s", lh_action->uuid);
}
return;
}
slist_iter(
rh_action_iter, action_t, rh_actions, lpc,
if(lh_action) {
order_actions(lh_action, rh_action_iter, order->type);
} else if(order->type & pe_order_implies_right) {
rh_action_iter->runnable = FALSE;
crm_warn("Unrunnable %s 0x%.6x", rh_action_iter->uuid, order->type);
} else {
crm_warn("neither %s 0x%.6x", rh_action_iter->uuid, order->type);
}
);
pe_free_shallow_adv(rh_actions, FALSE);
}
void native_rsc_location(resource_t *rsc, rsc_to_node_t *constraint)
{
GListPtr or_list;
crm_debug_2("Applying %s (%s) to %s", constraint->id,
role2text(constraint->role_filter), rsc->id);
/* take "lifetime" into account */
if(constraint == NULL) {
pe_err("Constraint is NULL");
return;
} else if(rsc == NULL) {
pe_err("LHS of rsc_to_node (%s) is NULL", constraint->id);
return;
} else if(constraint->role_filter > 0
&& constraint->role_filter != rsc->next_role) {
crm_debug("Constraint (%s) is not active (role : %s)",
constraint->id, role2text(constraint->role_filter));
return;