/*
* Copyright 2004-2018 Andrew Beekhof <andrew@beekhof.net>
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <crm/msg_xml.h>
#include <pacemaker-internal.h>
#define VARIANT_CLONE 1
#include <lib/pengine/variant.h>
extern gint sort_clone_instance(gconstpointer a, gconstpointer b, gpointer data_set);
static void
child_promoting_constraints(clone_variant_data_t * clone_data, enum pe_ordering type,
resource_t * rsc, resource_t * child, resource_t * last,
pe_working_set_t * data_set)
{
if (child == NULL) {
if (clone_data->ordered && last != NULL) {
pe_rsc_trace(rsc, "Ordered version (last node)");
/* last child promote before promoted started */
new_rsc_order(last, RSC_PROMOTE, rsc, RSC_PROMOTED, type, data_set);
}
return;
}
/* child promote before global promoted */
new_rsc_order(child, RSC_PROMOTE, rsc, RSC_PROMOTED, type, data_set);
/* global promote before child promote */
new_rsc_order(rsc, RSC_PROMOTE, child, RSC_PROMOTE, type, data_set);
if (clone_data->ordered) {
pe_rsc_trace(rsc, "Ordered version");
if (last == NULL) {
/* global promote before first child promote */
last = rsc;
}
/* else: child/child relative promote */
order_start_start(last, child, type);
new_rsc_order(last, RSC_PROMOTE, child, RSC_PROMOTE, type, data_set);
} else {
pe_rsc_trace(rsc, "Un-ordered version");
}
}
static void
child_demoting_constraints(clone_variant_data_t * clone_data, enum pe_ordering type,
resource_t * rsc, resource_t * child, resource_t * last,
pe_working_set_t * data_set)
{
if (child == NULL) {
if (clone_data->ordered && last != NULL) {
pe_rsc_trace(rsc, "Ordered version (last node)");
/* global demote before first child demote */
new_rsc_order(rsc, RSC_DEMOTE, last, RSC_DEMOTE, pe_order_optional, data_set);
}
return;
}
/* child demote before global demoted */
new_rsc_order(child, RSC_DEMOTE, rsc, RSC_DEMOTED, pe_order_implies_then_printed, data_set);
/* global demote before child demote */
new_rsc_order(rsc, RSC_DEMOTE, child, RSC_DEMOTE, pe_order_implies_first_printed, data_set);
if (clone_data->ordered && last != NULL) {
pe_rsc_trace(rsc, "Ordered version");
/* child/child relative demote */
new_rsc_order(child, RSC_DEMOTE, last, RSC_DEMOTE, type, data_set);
} else if (clone_data->ordered) {
pe_rsc_trace(rsc, "Ordered version (1st node)");
/* first child stop before global stopped */
new_rsc_order(child, RSC_DEMOTE, rsc, RSC_DEMOTED, type, data_set);
} else {
pe_rsc_trace(rsc, "Un-ordered version");
}
}
static void
check_promotable_actions(resource_t *rsc, gboolean *demoting,
gboolean *promoting)
{
GListPtr gIter = NULL;
if (rsc->children) {
gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child = (resource_t *) gIter->data;
check_promotable_actions(child, demoting, promoting);
}
return;
}
CRM_ASSERT(demoting != NULL);
CRM_ASSERT(promoting != NULL);
gIter = rsc->actions;
for (; gIter != NULL; gIter = gIter->next) {
action_t *action = (action_t *) gIter->data;
if (*promoting && *demoting) {
return;
} else if (is_set(action->flags, pe_action_optional)) {
continue;
} else if (safe_str_eq(RSC_DEMOTE, action->task)) {
*demoting = TRUE;
} else if (safe_str_eq(RSC_PROMOTE, action->task)) {
*promoting = TRUE;
}
}
}
static void apply_master_location(resource_t *child, GListPtr location_constraints, pe_node_t *chosen)
{
CRM_CHECK(child && chosen, return);
for (GListPtr gIter = location_constraints; gIter; gIter = gIter->next) {
pe_node_t *cons_node = NULL;
pe__location_t *cons = gIter->data;
if (cons->role_filter == RSC_ROLE_MASTER) {
pe_rsc_trace(child, "Applying %s to %s", cons->id, child->id);
cons_node = pe_find_node_id(cons->node_list_rh, chosen->details->id);
}
if (cons_node != NULL) {
int new_priority = merge_weights(child->priority, cons_node->weight);
pe_rsc_trace(child, "\t%s[%s]: %d -> %d (%d)",
child->id, cons_node->details->uname, child->priority,
new_priority, cons_node->weight);
child->priority = new_priority;
}
}
}
static node_t *
can_be_master(resource_t * rsc)
{
node_t *node = NULL;
node_t *local_node = NULL;
resource_t *parent = uber_parent(rsc);
clone_variant_data_t *clone_data = NULL;
#if 0
enum rsc_role_e role = RSC_ROLE_UNKNOWN;
role = rsc->fns->state(rsc, FALSE);
crm_info("%s role: %s", rsc->id, role2text(role));
#endif
if (rsc->children) {
GListPtr gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child = (resource_t *) gIter->data;
if (can_be_master(child) == NULL) {
pe_rsc_trace(rsc, "Child %s of %s can't be promoted", child->id, rsc->id);
return NULL;
}
}
}
node = rsc->fns->location(rsc, NULL, FALSE);
if (node == NULL) {
pe_rsc_trace(rsc, "%s cannot be master: not allocated", rsc->id);
return NULL;
} else if (is_not_set(rsc->flags, pe_rsc_managed)) {
if (rsc->fns->state(rsc, TRUE) == RSC_ROLE_MASTER) {
crm_notice("Forcing unmanaged master %s to remain promoted on %s",
rsc->id, node->details->uname);
} else {
return NULL;
}
} else if (rsc->priority < 0) {
pe_rsc_trace(rsc, "%s cannot be master: preference: %d", rsc->id, rsc->priority);
return NULL;
} else if (can_run_resources(node) == FALSE) {
crm_trace("Node can't run any resources: %s", node->details->uname);
return NULL;
}
get_clone_variant_data(clone_data, parent);
local_node = pe_hash_table_lookup(parent->allowed_nodes, node->details->id);
if (local_node == NULL) {
crm_err("%s cannot run on %s: node not allowed", rsc->id, node->details->uname);
return NULL;
} else if ((local_node->count < clone_data->promoted_node_max)
|| is_not_set(rsc->flags, pe_rsc_managed)) {
return local_node;
} else {
pe_rsc_trace(rsc, "%s cannot be master on %s: node full", rsc->id, node->details->uname);
}
return NULL;
}
static gint
sort_promotable_instance(gconstpointer a, gconstpointer b, gpointer data_set)
{
int rc;
enum rsc_role_e role1 = RSC_ROLE_UNKNOWN;
enum rsc_role_e role2 = RSC_ROLE_UNKNOWN;
const resource_t *resource1 = (const resource_t *)a;
const resource_t *resource2 = (const resource_t *)b;
CRM_ASSERT(resource1 != NULL);
CRM_ASSERT(resource2 != NULL);
role1 = resource1->fns->state(resource1, TRUE);
role2 = resource2->fns->state(resource2, TRUE);
rc = sort_rsc_index(a, b);
if (rc != 0) {
crm_trace("%s %c %s (index)", resource1->id, rc < 0 ? '<' : '>', resource2->id);
return rc;
}
if (role1 > role2) {
crm_trace("%s %c %s (role)", resource1->id, '<', resource2->id);
return -1;
} else if (role1 < role2) {
crm_trace("%s %c %s (role)", resource1->id, '>', resource2->id);
return 1;
}
return sort_clone_instance(a, b, data_set);
}
static void
promotion_order(resource_t *rsc, pe_working_set_t *data_set)
{
GListPtr gIter = NULL;
node_t *node = NULL;
node_t *chosen = NULL;
clone_variant_data_t *clone_data = NULL;
char score[33];
size_t len = sizeof(score);
get_clone_variant_data(clone_data, rsc);
if (clone_data->merged_master_weights) {
return;
}
clone_data->merged_master_weights = TRUE;
pe_rsc_trace(rsc, "Merging weights for %s", rsc->id);
set_bit(rsc->flags, pe_rsc_merging);
for (gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
resource_t *child = (resource_t *) gIter->data;
pe_rsc_trace(rsc, "Sort index: %s = %d", child->id, child->sort_index);
}
dump_node_scores(LOG_TRACE, rsc, "Before", rsc->allowed_nodes);
gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child = (resource_t *) gIter->data;
chosen = child->fns->location(child, NULL, FALSE);
if (chosen == NULL || child->sort_index < 0) {
pe_rsc_trace(rsc, "Skipping %s", child->id);
continue;
}
node = (node_t *) pe_hash_table_lookup(rsc->allowed_nodes, chosen->details->id);
CRM_ASSERT(node != NULL);
/* adds in master preferences and rsc_location.role=Master */
score2char_stack(child->sort_index, score, len);
pe_rsc_trace(rsc, "Adding %s to %s from %s", score,
node->details->uname, child->id);
node->weight = merge_weights(child->sort_index, node->weight);
}
dump_node_scores(LOG_TRACE, rsc, "Middle", rsc->allowed_nodes);
gIter = rsc->rsc_cons;
for (; gIter != NULL; gIter = gIter->next) {
rsc_colocation_t *constraint = (rsc_colocation_t *) gIter->data;
/* (re-)adds location preferences of resources that the
* master instance should/must be colocated with
*/
if (constraint->role_lh == RSC_ROLE_MASTER) {
enum pe_weights flags = constraint->score == INFINITY ? 0 : pe_weights_rollback;
pe_rsc_trace(rsc, "RHS: %s with %s: %d", constraint->rsc_lh->id, constraint->rsc_rh->id,
constraint->score);
rsc->allowed_nodes =
constraint->rsc_rh->cmds->merge_weights(constraint->rsc_rh, rsc->id,
rsc->allowed_nodes,
constraint->node_attribute,
(float)constraint->score / INFINITY, flags);
}
}
gIter = rsc->rsc_cons_lhs;
for (; gIter != NULL; gIter = gIter->next) {
rsc_colocation_t *constraint = (rsc_colocation_t *) gIter->data;
/* (re-)adds location preferences of resource that wish to be
* colocated with the master instance
*/
if (constraint->role_rh == RSC_ROLE_MASTER) {
pe_rsc_trace(rsc, "LHS: %s with %s: %d", constraint->rsc_lh->id, constraint->rsc_rh->id,
constraint->score);
rsc->allowed_nodes =
constraint->rsc_lh->cmds->merge_weights(constraint->rsc_lh, rsc->id,
rsc->allowed_nodes,
constraint->node_attribute,
(float)constraint->score / INFINITY,
(pe_weights_rollback |
pe_weights_positive));
}
}
gIter = rsc->rsc_tickets;
for (; gIter != NULL; gIter = gIter->next) {
rsc_ticket_t *rsc_ticket = (rsc_ticket_t *) gIter->data;
if (rsc_ticket->role_lh == RSC_ROLE_MASTER
&& (rsc_ticket->ticket->granted == FALSE || rsc_ticket->ticket->standby)) {
resource_location(rsc, NULL, -INFINITY, "__stateful_without_ticket__", data_set);
}
}
dump_node_scores(LOG_TRACE, rsc, "After", rsc->allowed_nodes);
/* write them back and sort */
gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child = (resource_t *) gIter->data;
chosen = child->fns->location(child, NULL, FALSE);
if (is_not_set(child->flags, pe_rsc_managed) && child->next_role == RSC_ROLE_MASTER) {
child->sort_index = INFINITY;
} else if (chosen == NULL || child->sort_index < 0) {
pe_rsc_trace(rsc, "%s: %d", child->id, child->sort_index);
} else {
node = (node_t *) pe_hash_table_lookup(rsc->allowed_nodes, chosen->details->id);
CRM_ASSERT(node != NULL);
child->sort_index = node->weight;
}
pe_rsc_trace(rsc, "Set sort index: %s = %d", child->id, child->sort_index);
}
rsc->children = g_list_sort_with_data(rsc->children,
sort_promotable_instance, data_set);
clear_bit(rsc->flags, pe_rsc_merging);
}
static gboolean
filter_anonymous_instance(resource_t *rsc, const node_t *node)
{
GListPtr rIter = NULL;
char *key = clone_strip(rsc->id);
resource_t *parent = uber_parent(rsc);
for (rIter = parent->children; rIter; rIter = rIter->next) {
/* If there is an active instance on the node, only it receives the
* promotion score. Use ->find_rsc() in case this is a cloned group.
*/
resource_t *child = rIter->data;
resource_t *active = parent->fns->find_rsc(child, key, node, pe_find_clone|pe_find_current);
if(rsc == active) {
pe_rsc_trace(rsc, "Found %s for %s active on %s: done", active->id, key, node->details->uname);
free(key);
return TRUE;
} else if(active) {
pe_rsc_trace(rsc, "Found %s for %s on %s: not %s", active->id, key, node->details->uname, rsc->id);
free(key);
return FALSE;
} else {
pe_rsc_trace(rsc, "%s on %s: not active", key, node->details->uname);
}
}
for (rIter = parent->children; rIter; rIter = rIter->next) {
resource_t *child = rIter->data;
/*
* We know it's not running, but any score will still count if
* the instance has been probed on $node
*
* Again use ->find_rsc() because we might be a cloned group
* and knowing that other members of the group are known here
* implies nothing
*/
rsc = parent->fns->find_rsc(child, key, NULL, pe_find_clone);
CRM_LOG_ASSERT(rsc);
if(rsc) {
pe_rsc_trace(rsc, "Checking %s for %s on %s", rsc->id, key, node->details->uname);
if (g_hash_table_lookup(rsc->known_on, node->details->id)) {
free(key);
return TRUE;
}
}
}
free(key);
return FALSE;
}
static const char *
lookup_promotion_score(resource_t *rsc, const node_t *node, const char *name)
{
const char *attr_value = NULL;
if (node && name) {
char *attr_name = crm_strdup_printf("master-%s", name);
attr_value = pe_node_attribute_calculated(node, attr_name, rsc);
free(attr_name);
}
return attr_value;
}
static int
promotion_score(resource_t *rsc, const node_t *node, int not_set_value)
{
char *name = rsc->id;
const char *attr_value = NULL;
int score = not_set_value;
node_t *match = NULL;
CRM_CHECK(node != NULL, return not_set_value);
if (rsc->children) {
GListPtr gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child = (resource_t *) gIter->data;
int c_score = promotion_score(child, node, not_set_value);
if (score == not_set_value) {
score = c_score;
} else {
score += c_score;
}
}
return score;
}
if (is_not_set(rsc->flags, pe_rsc_unique) && filter_anonymous_instance(rsc, node)) {
pe_rsc_trace(rsc, "Anonymous clone %s is allowed on %s", rsc->id, node->details->uname);
} else if (rsc->running_on || g_hash_table_size(rsc->known_on)) {
/* If we've probed and/or started the resource anywhere, consider
* promotion scores only from nodes where we know the status. However,
* if the status of all nodes is unknown (e.g. cluster startup),
* skip this code, to make sure we take into account any permanent
* promotion scores set previously.
*/
node_t *known = pe_hash_table_lookup(rsc->known_on, node->details->id);
match = pe_find_node_id(rsc->running_on, node->details->id);
if ((match == NULL) && (known == NULL)) {
pe_rsc_trace(rsc, "skipping %s (aka. %s) promotion score on %s because inactive",
rsc->id, rsc->clone_name, node->details->uname);
return score;
}
}
match = pe_hash_table_lookup(rsc->allowed_nodes, node->details->id);
if (match == NULL) {
return score;
} else if (match->weight < 0) {
pe_rsc_trace(rsc, "%s on %s has score: %d - ignoring",
rsc->id, match->details->uname, match->weight);
return score;
}
if (rsc->clone_name) {
/* Use the name the lrm knows this resource as,
* since that's what crm_master would have used too
*/
name = rsc->clone_name;
}
attr_value = lookup_promotion_score(rsc, node, name);
pe_rsc_trace(rsc, "promotion score for %s on %s = %s",
name, node->details->uname, crm_str(attr_value));
if ((attr_value == NULL) && is_not_set(rsc->flags, pe_rsc_unique)) {
/* If we don't have any LRM history yet, we won't have clone_name -- in
* that case, for anonymous clones, try the resource name without any
* instance number.
*/
name = clone_strip(rsc->id);
if (strcmp(rsc->id, name)) {
attr_value = lookup_promotion_score(rsc, node, name);
pe_rsc_trace(rsc, "stripped promotion score for %s on %s = %s",
name, node->details->uname, crm_str(attr_value));
}
free(name);
}
if (attr_value != NULL) {
score = char2score(attr_value);
}
return score;
}
void
apply_master_prefs(resource_t *rsc)
{
int score, new_score;
GListPtr gIter = rsc->children;
clone_variant_data_t *clone_data = NULL;
get_clone_variant_data(clone_data, rsc);
if (clone_data->applied_master_prefs) {
/* Make sure we only do this once */
return;
}
clone_data->applied_master_prefs = TRUE;
for (; gIter != NULL; gIter = gIter->next) {
GHashTableIter iter;
node_t *node = NULL;
resource_t *child_rsc = (resource_t *) gIter->data;
g_hash_table_iter_init(&iter, child_rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
if (can_run_resources(node) == FALSE) {
/* This node will never be promoted to master,
* so don't apply the promotion score as that may
* lead to clone shuffling
*/
continue;
}
score = promotion_score(child_rsc, node, 0);
if (score > 0) {
new_score = merge_weights(node->weight, score);
if (new_score != node->weight) {
pe_rsc_trace(rsc, "\t%s: Updating preference for %s (%d->%d)",
child_rsc->id, node->details->uname, node->weight, new_score);
node->weight = new_score;
}
}
new_score = QB_MAX(child_rsc->priority, score);
if (new_score != child_rsc->priority) {
pe_rsc_trace(rsc, "\t%s: Updating priority (%d->%d)",
child_rsc->id, child_rsc->priority, new_score);
child_rsc->priority = new_score;
}
}
}
}
static void
set_role_slave(resource_t * rsc, gboolean current)
{
GListPtr gIter = rsc->children;
if (current) {
if (rsc->role == RSC_ROLE_STARTED) {
rsc->role = RSC_ROLE_SLAVE;
}
} else {
GListPtr allocated = NULL;
rsc->fns->location(rsc, &allocated, FALSE);
if (allocated) {
rsc->next_role = RSC_ROLE_SLAVE;
} else {
rsc->next_role = RSC_ROLE_STOPPED;
}
g_list_free(allocated);
}
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child_rsc = (resource_t *) gIter->data;
set_role_slave(child_rsc, current);
}
}
static void
set_role_master(resource_t * rsc)
{
GListPtr gIter = rsc->children;
if (rsc->next_role == RSC_ROLE_UNKNOWN) {
rsc->next_role = RSC_ROLE_MASTER;
}
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child_rsc = (resource_t *) gIter->data;
set_role_master(child_rsc);
}
}
node_t *
color_promotable(resource_t *rsc, pe_working_set_t *data_set)
{
int promoted = 0;
GListPtr gIter = NULL;
GListPtr gIter2 = NULL;
GHashTableIter iter;
node_t *node = NULL;
node_t *chosen = NULL;
enum rsc_role_e next_role = RSC_ROLE_UNKNOWN;
char score[33];
size_t len = sizeof(score);
clone_variant_data_t *clone_data = NULL;
get_clone_variant_data(clone_data, rsc);
/* count now tracks the number of masters allocated */
g_hash_table_iter_init(&iter, rsc->allowed_nodes);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
node->count = 0;
}
/*
* assign priority
*/
for (gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
GListPtr list = NULL;
resource_t *child_rsc = (resource_t *) gIter->data;
pe_rsc_trace(rsc, "Assigning priority for %s: %s", child_rsc->id,
role2text(child_rsc->next_role));
if (child_rsc->fns->state(child_rsc, TRUE) == RSC_ROLE_STARTED) {
set_role_slave(child_rsc, TRUE);
}
chosen = child_rsc->fns->location(child_rsc, &list, FALSE);
if (g_list_length(list) > 1) {
crm_config_err("Cannot promote non-colocated child %s", child_rsc->id);
}
g_list_free(list);
if (chosen == NULL) {
continue;
}
next_role = child_rsc->fns->state(child_rsc, FALSE);
switch (next_role) {
case RSC_ROLE_STARTED:
case RSC_ROLE_UNKNOWN:
/*
* Default to -1 if no value is set
*
* This allows master locations to be specified
* based solely on rsc_location constraints,
* but prevents anyone from being promoted if
* neither a constraint nor a promotion score is present
*/
child_rsc->priority = promotion_score(child_rsc, chosen, -1);
break;
case RSC_ROLE_SLAVE:
case RSC_ROLE_STOPPED:
child_rsc->priority = -INFINITY;
break;
case RSC_ROLE_MASTER:
/* We will arrive here if we're re-creating actions after a stonith
*/
break;
default:
CRM_CHECK(FALSE /* unhandled */ ,
crm_err("Unknown resource role: %d for %s", next_role, child_rsc->id));
}
apply_master_location(child_rsc, child_rsc->rsc_location, chosen);
apply_master_location(child_rsc, rsc->rsc_location, chosen);
for (gIter2 = child_rsc->rsc_cons; gIter2 != NULL; gIter2 = gIter2->next) {
rsc_colocation_t *cons = (rsc_colocation_t *) gIter2->data;
child_rsc->cmds->rsc_colocation_lh(child_rsc, cons->rsc_rh, cons,
data_set);
}
child_rsc->sort_index = child_rsc->priority;
pe_rsc_trace(rsc, "Assigning priority for %s: %d", child_rsc->id, child_rsc->priority);
if (next_role == RSC_ROLE_MASTER) {
child_rsc->sort_index = INFINITY;
}
}
dump_node_scores(LOG_TRACE, rsc, "Pre merge", rsc->allowed_nodes);
promotion_order(rsc, data_set);
/* mark the first N as masters */
for (gIter = rsc->children; gIter != NULL; gIter = gIter->next) {
resource_t *child_rsc = (resource_t *) gIter->data;
score2char_stack(child_rsc->sort_index, score, len);
chosen = child_rsc->fns->location(child_rsc, NULL, FALSE);
if (show_scores) {
if (is_set(data_set->flags, pe_flag_stdout)) {
printf("%s promotion score on %s: %s\n",
child_rsc->id,
(chosen? chosen->details->uname : "none"), score);
}
} else {
do_crm_log(scores_log_level, "%s promotion score on %s: %s",
child_rsc->id, chosen ? chosen->details->uname : "none", score);
}
chosen = NULL; /* nuke 'chosen' so that we don't promote more than the
* required number of instances
*/
if (child_rsc->sort_index < 0) {
pe_rsc_trace(rsc, "Not supposed to promote child: %s", child_rsc->id);
} else if ((promoted < clone_data->promoted_max)
|| is_not_set(rsc->flags, pe_rsc_managed)) {
chosen = can_be_master(child_rsc);
}
pe_rsc_debug(rsc, "%s promotion score: %d", child_rsc->id, child_rsc->priority);
if (chosen == NULL) {
set_role_slave(child_rsc, FALSE);
continue;
} else if(child_rsc->role < RSC_ROLE_MASTER
&& is_set(data_set->flags, pe_flag_have_quorum) == FALSE
&& data_set->no_quorum_policy == no_quorum_freeze) {
crm_notice("Resource %s cannot be elevated from %s to %s: no-quorum-policy=freeze",
child_rsc->id, role2text(child_rsc->role), role2text(child_rsc->next_role));
set_role_slave(child_rsc, FALSE);
continue;
}
chosen->count++;
pe_rsc_info(rsc, "Promoting %s (%s %s)",
child_rsc->id, role2text(child_rsc->role), chosen->details->uname);
set_role_master(child_rsc);
promoted++;
}
pe_rsc_info(rsc, "%s: Promoted %d instances of a possible %d to master",
rsc->id, promoted, clone_data->promoted_max);
return NULL;
}
void
create_promotable_actions(resource_t * rsc, pe_working_set_t * data_set)
{
action_t *action = NULL;
GListPtr gIter = rsc->children;
action_t *action_complete = NULL;
gboolean any_promoting = FALSE;
gboolean any_demoting = FALSE;
resource_t *last_promote_rsc = NULL;
resource_t *last_demote_rsc = NULL;
clone_variant_data_t *clone_data = NULL;
get_clone_variant_data(clone_data, rsc);
pe_rsc_debug(rsc, "Creating actions for %s", rsc->id);
for (; gIter != NULL; gIter = gIter->next) {
gboolean child_promoting = FALSE;
gboolean child_demoting = FALSE;
resource_t *child_rsc = (resource_t *) gIter->data;
pe_rsc_trace(rsc, "Creating actions for %s", child_rsc->id);
child_rsc->cmds->create_actions(child_rsc, data_set);
check_promotable_actions(child_rsc, &child_demoting, &child_promoting);
any_demoting = any_demoting || child_demoting;
any_promoting = any_promoting || child_promoting;
pe_rsc_trace(rsc, "Created actions for %s: %d %d", child_rsc->id, child_promoting,
child_demoting);
}
/* promote */
action = create_pseudo_resource_op(rsc, RSC_PROMOTE, !any_promoting, TRUE, data_set);
action_complete = create_pseudo_resource_op(rsc, RSC_PROMOTED, !any_promoting, TRUE, data_set);
action_complete->priority = INFINITY;
child_promoting_constraints(clone_data, pe_order_optional,
rsc, NULL, last_promote_rsc, data_set);
if (clone_data->promote_notify == NULL) {
clone_data->promote_notify =
create_notification_boundaries(rsc, RSC_PROMOTE, action, action_complete, data_set);
}
/* demote */
action = create_pseudo_resource_op(rsc, RSC_DEMOTE, !any_demoting, TRUE, data_set);
action_complete = create_pseudo_resource_op(rsc, RSC_DEMOTED, !any_demoting, TRUE, data_set);
action_complete->priority = INFINITY;
child_demoting_constraints(clone_data, pe_order_optional, rsc, NULL, last_demote_rsc, data_set);
if (clone_data->demote_notify == NULL) {
clone_data->demote_notify =
create_notification_boundaries(rsc, RSC_DEMOTE, action, action_complete, data_set);
if (clone_data->promote_notify) {
/* If we ever wanted groups to have notifications we'd need to move this to native_internal_constraints() one day
* Requires exposing *_notify
*/
order_actions(clone_data->stop_notify->post_done, clone_data->promote_notify->pre,
pe_order_optional);
order_actions(clone_data->start_notify->post_done, clone_data->promote_notify->pre,
pe_order_optional);
order_actions(clone_data->demote_notify->post_done, clone_data->promote_notify->pre,
pe_order_optional);
order_actions(clone_data->demote_notify->post_done, clone_data->start_notify->pre,
pe_order_optional);
order_actions(clone_data->demote_notify->post_done, clone_data->stop_notify->pre,
pe_order_optional);
}
}
/* restore the correct priority */
gIter = rsc->children;
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child_rsc = (resource_t *) gIter->data;
child_rsc->priority = rsc->priority;
}
}
void
promote_demote_constraints(resource_t *rsc, pe_working_set_t *data_set)
{
/* global stopped before start */
new_rsc_order(rsc, RSC_STOPPED, rsc, RSC_START, pe_order_optional, data_set);
/* global stopped before promote */
new_rsc_order(rsc, RSC_STOPPED, rsc, RSC_PROMOTE, pe_order_optional, data_set);
/* global demoted before start */
new_rsc_order(rsc, RSC_DEMOTED, rsc, RSC_START, pe_order_optional, data_set);
/* global started before promote */
new_rsc_order(rsc, RSC_STARTED, rsc, RSC_PROMOTE, pe_order_optional, data_set);
/* global demoted before stop */
new_rsc_order(rsc, RSC_DEMOTED, rsc, RSC_STOP, pe_order_optional, data_set);
/* global demote before demoted */
new_rsc_order(rsc, RSC_DEMOTE, rsc, RSC_DEMOTED, pe_order_optional, data_set);
/* global demoted before promote */
new_rsc_order(rsc, RSC_DEMOTED, rsc, RSC_PROMOTE, pe_order_optional, data_set);
}
void
promotable_constraints(resource_t * rsc, pe_working_set_t * data_set)
{
GListPtr gIter = rsc->children;
resource_t *last_rsc = NULL;
clone_variant_data_t *clone_data = NULL;
get_clone_variant_data(clone_data, rsc);
promote_demote_constraints(rsc, data_set);
for (; gIter != NULL; gIter = gIter->next) {
resource_t *child_rsc = (resource_t *) gIter->data;
/* child demote before promote */
new_rsc_order(child_rsc, RSC_DEMOTE, child_rsc, RSC_PROMOTE, pe_order_optional, data_set);
child_promoting_constraints(clone_data, pe_order_optional,
rsc, child_rsc, last_rsc, data_set);
child_demoting_constraints(clone_data, pe_order_optional,
rsc, child_rsc, last_rsc, data_set);
last_rsc = child_rsc;
}
}
static void
node_hash_update_one(GHashTable * hash, node_t * other, const char *attr, int score)
{
GHashTableIter iter;
node_t *node = NULL;
const char *value = NULL;
if (other == NULL) {
return;
} else if (attr == NULL) {
attr = CRM_ATTR_UNAME;
}
value = pe_node_attribute_raw(other, attr);
g_hash_table_iter_init(&iter, hash);
while (g_hash_table_iter_next(&iter, NULL, (void **)&node)) {
const char *tmp = pe_node_attribute_raw(node, attr);
if (safe_str_eq(value, tmp)) {
crm_trace("%s: %d + %d", node->details->uname, node->weight, other->weight);
node->weight = merge_weights(node->weight, score);
}
}
}
void
promotable_colocation_rh(resource_t *rsc_lh, resource_t *rsc_rh,
rsc_colocation_t *constraint,
pe_working_set_t *data_set)
{
GListPtr gIter = NULL;
if (is_set(rsc_lh->flags, pe_rsc_provisional)) {
GListPtr rhs = NULL;
for (gIter = rsc_rh->children; gIter != NULL; gIter = gIter->next) {
resource_t *child_rsc = (resource_t *) gIter->data;
node_t *chosen = child_rsc->fns->location(child_rsc, NULL, FALSE);
enum rsc_role_e next_role = child_rsc->fns->state(child_rsc, FALSE);
pe_rsc_trace(rsc_rh, "Processing: %s", child_rsc->id);
if (chosen != NULL && next_role == constraint->role_rh) {
pe_rsc_trace(rsc_rh, "Applying: %s %s %s %d", child_rsc->id,
role2text(next_role), chosen->details->uname, constraint->score);
if (constraint->score < INFINITY) {
node_hash_update_one(rsc_lh->allowed_nodes, chosen,
constraint->node_attribute, constraint->score);
}
rhs = g_list_prepend(rhs, chosen);
}
}
/* Only do this if it's not a master-master colocation
* Doing this unconditionally would prevent the slaves from being started
*/
if (constraint->role_lh != RSC_ROLE_MASTER || constraint->role_rh != RSC_ROLE_MASTER) {
if (constraint->score >= INFINITY) {
node_list_exclude(rsc_lh->allowed_nodes, rhs, TRUE);
}
}
g_list_free(rhs);
} else if (constraint->role_lh == RSC_ROLE_MASTER) {
pe_resource_t *rh_child = find_compatible_child(rsc_lh, rsc_rh,
constraint->role_rh,
FALSE, data_set);
if (rh_child == NULL && constraint->score >= INFINITY) {
pe_rsc_trace(rsc_lh, "%s can't be promoted %s", rsc_lh->id, constraint->id);
rsc_lh->priority = -INFINITY;
} else if (rh_child != NULL) {
int new_priority = merge_weights(rsc_lh->priority, constraint->score);
pe_rsc_debug(rsc_lh, "Applying %s to %s", constraint->id, rsc_lh->id);
pe_rsc_debug(rsc_lh, "\t%s: %d->%d", rsc_lh->id, rsc_lh->priority, new_priority);
rsc_lh->priority = new_priority;
}
}
return;
}