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diff --git a/lib/pacemaker/pcmk_sched_group.c b/lib/pacemaker/pcmk_sched_group.c
index 946c9c0d81..cb139f7ddf 100644
--- a/lib/pacemaker/pcmk_sched_group.c
+++ b/lib/pacemaker/pcmk_sched_group.c
@@ -1,849 +1,865 @@
/*
* Copyright 2004-2023 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <stdbool.h>
#include <crm/msg_xml.h>
#include <pacemaker-internal.h>
#include "libpacemaker_private.h"
/*!
* \internal
* \brief Assign a group resource to a node
*
* \param[in,out] rsc Group resource to assign to a node
* \param[in] prefer Node to prefer, if all else is equal
*
* \return Node that \p rsc is assigned to, if assigned entirely to one node
*/
pe_node_t *
pcmk__group_assign(pe_resource_t *rsc, const pe_node_t *prefer)
{
pe_node_t *first_assigned_node = NULL;
pe_resource_t *first_member = NULL;
CRM_ASSERT(rsc != NULL);
if (!pcmk_is_set(rsc->flags, pe_rsc_provisional)) {
return rsc->allocated_to; // Assignment already done
}
if (pcmk_is_set(rsc->flags, pe_rsc_allocating)) {
pe_rsc_debug(rsc, "Assignment dependency loop detected involving %s",
rsc->id);
return NULL;
}
if (rsc->children == NULL) {
// No members to assign
pe__clear_resource_flags(rsc, pe_rsc_provisional);
return NULL;
}
pe__set_resource_flags(rsc, pe_rsc_allocating);
first_member = (pe_resource_t *) rsc->children->data;
rsc->role = first_member->role;
pe__show_node_weights(!pcmk_is_set(rsc->cluster->flags, pe_flag_show_scores),
rsc, __func__, rsc->allowed_nodes, rsc->cluster);
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
pe_resource_t *member = (pe_resource_t *) iter->data;
pe_node_t *node = NULL;
pe_rsc_trace(rsc, "Assigning group %s member %s",
rsc->id, member->id);
node = member->cmds->assign(member, prefer);
if (first_assigned_node == NULL) {
first_assigned_node = node;
}
}
pe__set_next_role(rsc, first_member->next_role, "first group member");
pe__clear_resource_flags(rsc, pe_rsc_allocating|pe_rsc_provisional);
if (!pe__group_flag_is_set(rsc, pe__group_colocated)) {
return NULL;
}
return first_assigned_node;
}
/*!
* \internal
* \brief Create a pseudo-operation for a group as an ordering point
*
* \param[in,out] group Group resource to create action for
* \param[in] action Action name
*
* \return Newly created pseudo-operation
*/
static pe_action_t *
create_group_pseudo_op(pe_resource_t *group, const char *action)
{
pe_action_t *op = custom_action(group, pcmk__op_key(group->id, action, 0),
action, NULL, TRUE, TRUE, group->cluster);
pe__set_action_flags(op, pe_action_pseudo|pe_action_runnable);
return op;
}
/*!
* \internal
* \brief Create all actions needed for a given group resource
*
* \param[in,out] rsc Group resource to create actions for
*/
void
pcmk__group_create_actions(pe_resource_t *rsc)
{
CRM_ASSERT(rsc != NULL);
pe_rsc_trace(rsc, "Creating actions for group %s", rsc->id);
// Create actions for individual group members
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
pe_resource_t *member = (pe_resource_t *) iter->data;
member->cmds->create_actions(member);
}
// Create pseudo-actions for group itself to serve as ordering points
create_group_pseudo_op(rsc, RSC_START);
create_group_pseudo_op(rsc, RSC_STARTED);
create_group_pseudo_op(rsc, RSC_STOP);
create_group_pseudo_op(rsc, RSC_STOPPED);
if (crm_is_true(g_hash_table_lookup(rsc->meta, XML_RSC_ATTR_PROMOTABLE))) {
create_group_pseudo_op(rsc, RSC_DEMOTE);
create_group_pseudo_op(rsc, RSC_DEMOTED);
create_group_pseudo_op(rsc, RSC_PROMOTE);
create_group_pseudo_op(rsc, RSC_PROMOTED);
}
}
// User data for member_internal_constraints()
struct member_data {
// These could be derived from member but this avoids some function calls
bool ordered;
bool colocated;
bool promotable;
pe_resource_t *last_active;
pe_resource_t *previous_member;
};
/*!
* \internal
* \brief Create implicit constraints needed for a group member
*
* \param[in,out] data Group member to create implicit constraints for
- * \param[in,out] user_data Group member to create implicit constraints for
+ * \param[in,out] user_data Member data (struct member_data *)
*/
static void
member_internal_constraints(gpointer data, gpointer user_data)
{
pe_resource_t *member = (pe_resource_t *) data;
struct member_data *member_data = (struct member_data *) user_data;
// For ordering demote vs demote or stop vs stop
uint32_t down_flags = pe_order_implies_first_printed;
// For ordering demote vs demoted or stop vs stopped
uint32_t post_down_flags = pe_order_implies_then_printed;
// Create the individual member's implicit constraints
member->cmds->internal_constraints(member);
if (member_data->previous_member == NULL) {
// This is first member
if (member_data->ordered) {
pe__set_order_flags(down_flags, pe_order_optional);
post_down_flags = pe_order_implies_then;
}
} else if (member_data->colocated) {
// Colocate this member with the previous one
pcmk__new_colocation("group:internal_colocation", NULL, INFINITY,
member, member_data->previous_member, NULL, NULL,
pcmk_is_set(member->flags, pe_rsc_critical),
member->cluster);
}
if (member_data->promotable) {
// Demote group -> demote member -> group is demoted
pcmk__order_resource_actions(member->parent, RSC_DEMOTE,
member, RSC_DEMOTE, down_flags);
pcmk__order_resource_actions(member, RSC_DEMOTE,
member->parent, RSC_DEMOTED,
post_down_flags);
// Promote group -> promote member -> group is promoted
pcmk__order_resource_actions(member, RSC_PROMOTE,
member->parent, RSC_PROMOTED,
pe_order_runnable_left
|pe_order_implies_then
|pe_order_implies_then_printed);
pcmk__order_resource_actions(member->parent, RSC_PROMOTE,
member, RSC_PROMOTE,
pe_order_implies_first_printed);
}
// Stop group -> stop member -> group is stopped
pcmk__order_stops(member->parent, member, down_flags);
pcmk__order_resource_actions(member, RSC_STOP, member->parent, RSC_STOPPED,
post_down_flags);
// Start group -> start member -> group is started
pcmk__order_starts(member->parent, member, pe_order_implies_first_printed);
pcmk__order_resource_actions(member, RSC_START, member->parent, RSC_STARTED,
pe_order_runnable_left
|pe_order_implies_then
|pe_order_implies_then_printed);
if (!member_data->ordered) {
pcmk__order_starts(member->parent, member,
pe_order_implies_then
|pe_order_runnable_left
|pe_order_implies_first_printed);
if (member_data->promotable) {
pcmk__order_resource_actions(member->parent, RSC_PROMOTE, member,
RSC_PROMOTE,
pe_order_implies_then
|pe_order_runnable_left
|pe_order_implies_first_printed);
}
} else if (member_data->previous_member == NULL) {
pcmk__order_starts(member->parent, member, pe_order_none);
if (member_data->promotable) {
pcmk__order_resource_actions(member->parent, RSC_PROMOTE, member,
RSC_PROMOTE, pe_order_none);
}
} else {
// Order this member relative to the previous one
+
pcmk__order_starts(member_data->previous_member, member,
pe_order_implies_then|pe_order_runnable_left);
pcmk__order_stops(member, member_data->previous_member,
pe_order_optional|pe_order_restart);
+
+ /* In unusual circumstances (such as adding a new member to the middle
+ * of a group with unmanaged later members), this member may be active
+ * while the previous (new) member is inactive. In this situation, the
+ * usual restart orderings will be irrelevant, so we need to order this
+ * member's stop before the previous member's start.
+ */
+ if ((member->running_on != NULL)
+ && (member_data->previous_member->running_on == NULL)) {
+ pcmk__order_resource_actions(member, RSC_STOP,
+ member_data->previous_member, RSC_START,
+ pe_order_implies_first
+ |pe_order_runnable_left);
+ }
+
if (member_data->promotable) {
pcmk__order_resource_actions(member_data->previous_member,
RSC_PROMOTE, member, RSC_PROMOTE,
pe_order_implies_then
|pe_order_runnable_left);
pcmk__order_resource_actions(member, RSC_DEMOTE,
member_data->previous_member,
RSC_DEMOTE, pe_order_optional);
}
}
// Make sure partially active groups shut down in sequence
if (member->running_on != NULL) {
if (member_data->ordered && (member_data->previous_member != NULL)
&& (member_data->previous_member->running_on == NULL)
&& (member_data->last_active != NULL)
&& (member_data->last_active->running_on != NULL)) {
pcmk__order_stops(member, member_data->last_active, pe_order_optional);
}
member_data->last_active = member;
}
member_data->previous_member = member;
}
/*!
* \internal
* \brief Create implicit constraints needed for a group resource
*
* \param[in,out] rsc Group resource to create implicit constraints for
*/
void
pcmk__group_internal_constraints(pe_resource_t *rsc)
{
struct member_data member_data = { false, };
CRM_ASSERT(rsc != NULL);
/* Order group pseudo-actions relative to each other for restarting:
* stop group -> group is stopped -> start group -> group is started
*/
pcmk__order_resource_actions(rsc, RSC_STOP, rsc, RSC_STOPPED,
pe_order_runnable_left);
pcmk__order_resource_actions(rsc, RSC_STOPPED, rsc, RSC_START,
pe_order_optional);
pcmk__order_resource_actions(rsc, RSC_START, rsc, RSC_STARTED,
pe_order_runnable_left);
member_data.ordered = pe__group_flag_is_set(rsc, pe__group_ordered);
member_data.colocated = pe__group_flag_is_set(rsc, pe__group_colocated);
member_data.promotable = pcmk_is_set(pe__const_top_resource(rsc, false)->flags,
pe_rsc_promotable);
g_list_foreach(rsc->children, member_internal_constraints, &member_data);
}
/*!
* \internal
* \brief Apply a colocation's score to node weights or resource priority
*
* Given a colocation constraint for a group with some other resource, apply the
* score to the dependent's allowed node weights (if we are still placing
* resources) or priority (if we are choosing promotable clone instance roles).
*
* \param[in,out] dependent Dependent group resource in colocation
* \param[in] primary Primary resource in colocation
* \param[in] colocation Colocation constraint to apply
*/
static void
colocate_group_with(pe_resource_t *dependent, const pe_resource_t *primary,
const pcmk__colocation_t *colocation)
{
pe_resource_t *member = NULL;
if (dependent->children == NULL) {
return;
}
pe_rsc_trace(primary, "Processing %s (group %s with %s) for dependent",
colocation->id, dependent->id, primary->id);
if (pe__group_flag_is_set(dependent, pe__group_colocated)) {
// Colocate first member (internal colocations will handle the rest)
member = (pe_resource_t *) dependent->children->data;
member->cmds->apply_coloc_score(member, primary, colocation, true);
return;
}
if (colocation->score >= INFINITY) {
pcmk__config_err("%s: Cannot perform mandatory colocation between "
"non-colocated group and %s",
dependent->id, primary->id);
return;
}
// Colocate each member individually
for (GList *iter = dependent->children; iter != NULL; iter = iter->next) {
member = (pe_resource_t *) iter->data;
member->cmds->apply_coloc_score(member, primary, colocation, true);
}
}
/*!
* \internal
* \brief Apply a colocation's score to node weights or resource priority
*
* Given a colocation constraint for some other resource with a group, apply the
* score to the dependent's allowed node weights (if we are still placing
* resources) or priority (if we are choosing promotable clone instance roles).
*
* \param[in,out] dependent Dependent resource in colocation
* \param[in] primary Primary group resource in colocation
* \param[in] colocation Colocation constraint to apply
*/
static void
colocate_with_group(pe_resource_t *dependent, const pe_resource_t *primary,
const pcmk__colocation_t *colocation)
{
pe_resource_t *member = NULL;
pe_rsc_trace(primary,
"Processing colocation %s (%s with group %s) for primary",
colocation->id, dependent->id, primary->id);
if (pcmk_is_set(primary->flags, pe_rsc_provisional)) {
return;
}
if (pe__group_flag_is_set(primary, pe__group_colocated)) {
if (colocation->score >= INFINITY) {
/* For mandatory colocations, the entire group must be assignable
* (and in the specified role if any), so apply the colocation based
* on the last member.
*/
member = pe__last_group_member(primary);
} else if (primary->children != NULL) {
/* For optional colocations, whether the group is partially or fully
* up doesn't matter, so apply the colocation based on the first
* member.
*/
member = (pe_resource_t *) primary->children->data;
}
if (member == NULL) {
return; // Nothing to colocate with
}
member->cmds->apply_coloc_score(dependent, member, colocation, false);
return;
}
if (colocation->score >= INFINITY) {
pcmk__config_err("%s: Cannot perform mandatory colocation with"
" non-colocated group %s",
dependent->id, primary->id);
return;
}
// Colocate dependent with each member individually
for (GList *iter = primary->children; iter != NULL; iter = iter->next) {
member = (pe_resource_t *) iter->data;
member->cmds->apply_coloc_score(dependent, member, colocation, false);
}
}
/*!
* \internal
* \brief Apply a colocation's score to node weights or resource priority
*
* Given a colocation constraint, apply its score to the dependent's
* allowed node weights (if we are still placing resources) or priority (if
* we are choosing promotable clone instance roles).
*
* \param[in,out] dependent Dependent resource in colocation
* \param[in] primary Primary resource in colocation
* \param[in] colocation Colocation constraint to apply
* \param[in] for_dependent true if called on behalf of dependent
*/
void
pcmk__group_apply_coloc_score(pe_resource_t *dependent,
const pe_resource_t *primary,
const pcmk__colocation_t *colocation,
bool for_dependent)
{
CRM_ASSERT((dependent != NULL) && (primary != NULL)
&& (colocation != NULL));
if (for_dependent) {
colocate_group_with(dependent, primary, colocation);
} else {
// Method should only be called for primitive dependents
CRM_ASSERT(dependent->variant == pe_native);
colocate_with_group(dependent, primary, colocation);
}
}
/*!
* \internal
* \brief Return action flags for a given group resource action
*
* \param[in,out] action Group action to get flags for
* \param[in] node If not NULL, limit effects to this node
*
* \return Flags appropriate to \p action on \p node
*/
enum pe_action_flags
pcmk__group_action_flags(pe_action_t *action, const pe_node_t *node)
{
// Default flags for a group action
enum pe_action_flags flags = pe_action_optional
|pe_action_runnable
|pe_action_pseudo;
CRM_ASSERT(action != NULL);
// Update flags considering each member's own flags for same action
for (GList *iter = action->rsc->children; iter != NULL; iter = iter->next) {
pe_resource_t *member = (pe_resource_t *) iter->data;
// Check whether member has the same action
enum action_tasks task = get_complex_task(member, action->task);
const char *task_s = task2text(task);
pe_action_t *member_action = find_first_action(member->actions, NULL,
task_s, node);
if (member_action != NULL) {
enum pe_action_flags member_flags;
member_flags = member->cmds->action_flags(member_action, node);
// Group action is mandatory if any member action is
if (pcmk_is_set(flags, pe_action_optional)
&& !pcmk_is_set(member_flags, pe_action_optional)) {
pe_rsc_trace(action->rsc, "%s is mandatory because %s is",
action->uuid, member_action->uuid);
pe__clear_raw_action_flags(flags, "group action",
pe_action_optional);
pe__clear_action_flags(action, pe_action_optional);
}
// Group action is unrunnable if any member action is
if (!pcmk__str_eq(task_s, action->task, pcmk__str_none)
&& pcmk_is_set(flags, pe_action_runnable)
&& !pcmk_is_set(member_flags, pe_action_runnable)) {
pe_rsc_trace(action->rsc, "%s is unrunnable because %s is",
action->uuid, member_action->uuid);
pe__clear_raw_action_flags(flags, "group action",
pe_action_runnable);
pe__clear_action_flags(action, pe_action_runnable);
}
/* Group (pseudo-)actions other than stop or demote are unrunnable
* unless every member will do it.
*/
} else if ((task != stop_rsc) && (task != action_demote)) {
pe_rsc_trace(action->rsc,
"%s is not runnable because %s will not %s",
action->uuid, member->id, task_s);
pe__clear_raw_action_flags(flags, "group action",
pe_action_runnable);
}
}
return flags;
}
/*!
* \internal
* \brief Update two actions according to an ordering between them
*
* Given information about an ordering of two actions, update the actions' flags
* (and runnable_before members if appropriate) as appropriate for the ordering.
* Effects may cascade to other orderings involving the actions as well.
*
* \param[in,out] first 'First' action in an ordering
* \param[in,out] then 'Then' action in an ordering
* \param[in] node If not NULL, limit scope of ordering to this node
* (only used when interleaving instances)
* \param[in] flags Action flags for \p first for ordering purposes
* \param[in] filter Action flags to limit scope of certain updates (may
* include pe_action_optional to affect only mandatory
* actions, and pe_action_runnable to affect only
* runnable actions)
* \param[in] type Group of enum pe_ordering flags to apply
* \param[in,out] data_set Cluster working set
*
* \return Group of enum pcmk__updated flags indicating what was updated
*/
uint32_t
pcmk__group_update_ordered_actions(pe_action_t *first, pe_action_t *then,
const pe_node_t *node, uint32_t flags,
uint32_t filter, uint32_t type,
pe_working_set_t *data_set)
{
uint32_t changed = pcmk__updated_none;
CRM_ASSERT((first != NULL) && (then != NULL) && (data_set != NULL));
// Group method can be called only for group action as "then" action
CRM_ASSERT(then->rsc != NULL);
// Update the actions for the group itself
changed |= pcmk__update_ordered_actions(first, then, node, flags, filter,
type, data_set);
// Update the actions for each group member
for (GList *iter = then->rsc->children; iter != NULL; iter = iter->next) {
pe_resource_t *member = (pe_resource_t *) iter->data;
pe_action_t *member_action = find_first_action(member->actions, NULL,
then->task, node);
if (member_action != NULL) {
changed |= member->cmds->update_ordered_actions(first,
member_action, node,
flags, filter, type,
data_set);
}
}
return changed;
}
/*!
* \internal
* \brief Apply a location constraint to a group's allowed node scores
*
* \param[in,out] rsc Group resource to apply constraint to
* \param[in,out] location Location constraint to apply
*/
void
pcmk__group_apply_location(pe_resource_t *rsc, pe__location_t *location)
{
GList *node_list_orig = NULL;
GList *node_list_copy = NULL;
bool reset_scores = true;
CRM_ASSERT((rsc != NULL) && (location != NULL));
node_list_orig = location->node_list_rh;
node_list_copy = pcmk__copy_node_list(node_list_orig, true);
reset_scores = pe__group_flag_is_set(rsc, pe__group_colocated);
// Apply the constraint for the group itself (updates node scores)
pcmk__apply_location(rsc, location);
// Apply the constraint for each member
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
pe_resource_t *member = (pe_resource_t *) iter->data;
member->cmds->apply_location(member, location);
if (reset_scores) {
/* The first member of colocated groups needs to use the original
* node scores, but subsequent members should work on a copy, since
* the first member's scores already incorporate theirs.
*/
reset_scores = false;
location->node_list_rh = node_list_copy;
}
}
location->node_list_rh = node_list_orig;
g_list_free_full(node_list_copy, free);
}
// Group implementation of resource_alloc_functions_t:colocated_resources()
GList *
pcmk__group_colocated_resources(const pe_resource_t *rsc,
const pe_resource_t *orig_rsc,
GList *colocated_rscs)
{
const pe_resource_t *member = NULL;
CRM_ASSERT(rsc != NULL);
if (orig_rsc == NULL) {
orig_rsc = rsc;
}
if (pe__group_flag_is_set(rsc, pe__group_colocated)
|| pe_rsc_is_clone(rsc->parent)) {
/* This group has colocated members and/or is cloned -- either way,
* add every child's colocated resources to the list. The first and last
* members will include the group's own colocations.
*/
colocated_rscs = g_list_prepend(colocated_rscs, (gpointer) rsc);
for (const GList *iter = rsc->children;
iter != NULL; iter = iter->next) {
member = (const pe_resource_t *) iter->data;
colocated_rscs = member->cmds->colocated_resources(member, orig_rsc,
colocated_rscs);
}
} else if (rsc->children != NULL) {
/* This group's members are not colocated, and the group is not cloned,
* so just add the group's own colocations to the list.
*/
colocated_rscs = pcmk__colocated_resources(rsc, orig_rsc, colocated_rscs);
}
return colocated_rscs;
}
// Group implementation of resource_alloc_functions_t:with_this_colocations()
void
pcmk__with_group_colocations(const pe_resource_t *rsc,
const pe_resource_t *orig_rsc, GList **list)
{
CRM_CHECK((rsc != NULL) && (rsc->variant == pe_group)
&& (orig_rsc != NULL) && (list != NULL),
return);
// Ignore empty groups
if (rsc->children == NULL) {
return;
}
/* "With this" colocations are needed only for the group itself and for its
* last member. Add the group's colocations plus any relevant
* parent colocations if cloned.
*/
if ((rsc == orig_rsc) || (orig_rsc == pe__last_group_member(rsc))) {
crm_trace("Adding 'with %s' colocations to list for %s",
rsc->id, orig_rsc->id);
pcmk__add_with_this_list(list, rsc->rsc_cons_lhs);
if (rsc->parent != NULL) { // Cloned group
rsc->parent->cmds->with_this_colocations(rsc->parent, orig_rsc,
list);
}
}
}
// Group implementation of resource_alloc_functions_t:this_with_colocations()
void
pcmk__group_with_colocations(const pe_resource_t *rsc,
const pe_resource_t *orig_rsc, GList **list)
{
CRM_CHECK((rsc != NULL) && (rsc->variant == pe_group)
&& (orig_rsc != NULL) && (list != NULL),
return);
// Ignore empty groups
if (rsc->children == NULL) {
return;
}
/* Colocations for the group itself, or for its first member, consist of the
* group's colocations plus any relevant parent colocations if cloned.
*/
if ((rsc == orig_rsc)
|| (orig_rsc == (const pe_resource_t *) rsc->children->data)) {
crm_trace("Adding '%s with' colocations to list for %s",
rsc->id, orig_rsc->id);
pcmk__add_this_with_list(list, rsc->rsc_cons);
if (rsc->parent != NULL) { // Cloned group
rsc->parent->cmds->this_with_colocations(rsc->parent, orig_rsc,
list);
}
return;
}
/* Later group members honor the group's colocations indirectly, due to the
* internal group colocations that chain everything from the first member.
* However, if an earlier group member is unmanaged, this chaining will not
* happen, so the group's mandatory colocations must be explicitly added.
*/
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
const pe_resource_t *member = (const pe_resource_t *) iter->data;
if (orig_rsc == member) {
break; // We've seen all earlier members, and none are unmanaged
}
if (!pcmk_is_set(member->flags, pe_rsc_managed)) {
crm_trace("Adding mandatory '%s with' colocations to list for "
"member %s because earlier member %s is unmanaged",
rsc->id, orig_rsc->id, member->id);
for (const GList *cons_iter = rsc->rsc_cons; cons_iter != NULL;
cons_iter = cons_iter->next) {
const pcmk__colocation_t *colocation = NULL;
colocation = (const pcmk__colocation_t *) cons_iter->data;
if (colocation->score == INFINITY) {
pcmk__add_this_with(list, colocation);
}
}
// @TODO Add mandatory (or all?) clone constraints if cloned
break;
}
}
}
/*!
* \internal
* \brief Update nodes with scores of colocated resources' nodes
*
* Given a table of nodes and a resource, update the nodes' scores with the
* scores of the best nodes matching the attribute used for each of the
* resource's relevant colocations.
*
* \param[in,out] rsc Resource to check colocations for
* \param[in] log_id Resource ID to use in logs (if NULL, use \p rsc ID)
* \param[in,out] nodes Nodes to update
* \param[in] attr Colocation attribute (NULL to use default)
* \param[in] factor Incorporate scores multiplied by this factor
* \param[in] flags Bitmask of enum pcmk__coloc_select values
*
* \note The caller remains responsible for freeing \p *nodes.
*/
void
pcmk__group_add_colocated_node_scores(pe_resource_t *rsc, const char *log_id,
GHashTable **nodes, const char *attr,
float factor, uint32_t flags)
{
pe_resource_t *member = NULL;
CRM_CHECK((rsc != NULL) && (nodes != NULL), return);
if (log_id == NULL) {
log_id = rsc->id;
}
// Avoid infinite recursion
if (pcmk_is_set(rsc->flags, pe_rsc_merging)) {
pe_rsc_info(rsc, "%s: Breaking dependency loop at %s",
log_id, rsc->id);
return;
}
pe__set_resource_flags(rsc, pe_rsc_merging);
// Ignore empty groups (only possible with schema validation disabled)
if (rsc->children == NULL) {
return;
}
/* Refer the operation to the first or last member as appropriate.
*
* cmp_resources() is the only caller that passes a NULL nodes table,
* and is also the only caller using pcmk__coloc_select_this_with.
* For "this with" colocations, the last member will recursively incorporate
* all the other members' "this with" colocations via the internal group
* colocations (and via the first member, the group's own colocations).
*
* For "with this" colocations, the first member works similarly.
*/
if (*nodes == NULL) {
member = pe__last_group_member(rsc);
} else {
member = rsc->children->data;
}
pe_rsc_trace(rsc, "%s: Merging scores from group %s using member %s "
"(at %.6f)", log_id, rsc->id, member->id, factor);
member->cmds->add_colocated_node_scores(member, log_id, nodes, attr, factor,
flags);
pe__clear_resource_flags(rsc, pe_rsc_merging);
}
// Group implementation of resource_alloc_functions_t:add_utilization()
void
pcmk__group_add_utilization(const pe_resource_t *rsc,
const pe_resource_t *orig_rsc, GList *all_rscs,
GHashTable *utilization)
{
pe_resource_t *member = NULL;
CRM_ASSERT((rsc != NULL) && (orig_rsc != NULL) && (utilization != NULL));
if (!pcmk_is_set(rsc->flags, pe_rsc_provisional)) {
return;
}
pe_rsc_trace(orig_rsc, "%s: Adding group %s as colocated utilization",
orig_rsc->id, rsc->id);
if (pe__group_flag_is_set(rsc, pe__group_colocated)
|| pe_rsc_is_clone(rsc->parent)) {
// Every group member will be on same node, so sum all members
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
member = (pe_resource_t *) iter->data;
if (pcmk_is_set(member->flags, pe_rsc_provisional)
&& (g_list_find(all_rscs, member) == NULL)) {
member->cmds->add_utilization(member, orig_rsc, all_rscs,
utilization);
}
}
} else if (rsc->children != NULL) {
// Just add first member's utilization
member = (pe_resource_t *) rsc->children->data;
if ((member != NULL)
&& pcmk_is_set(member->flags, pe_rsc_provisional)
&& (g_list_find(all_rscs, member) == NULL)) {
member->cmds->add_utilization(member, orig_rsc, all_rscs,
utilization);
}
}
}
// Group implementation of resource_alloc_functions_t:shutdown_lock()
void
pcmk__group_shutdown_lock(pe_resource_t *rsc)
{
CRM_ASSERT(rsc != NULL);
for (GList *iter = rsc->children; iter != NULL; iter = iter->next) {
pe_resource_t *member = (pe_resource_t *) iter->data;
member->cmds->shutdown_lock(member);
}
}

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