diff --git a/lib/crm/pengine/complex.c b/lib/crm/pengine/complex.c index 5d81cfa3e4..d5d81f92ac 100644 --- a/lib/crm/pengine/complex.c +++ b/lib/crm/pengine/complex.c @@ -1,429 +1,434 @@ /* * Copyright (C) 2004 Andrew Beekhof * * 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 #include #include #include #include void populate_hash(crm_data_t *nvpair_list, GHashTable *hash, const char **attrs, int attrs_length); resource_object_functions_t resource_class_functions[] = { { native_unpack, native_find_child, native_children, native_parameter, native_print, native_active, native_resource_state, native_location, native_free }, { group_unpack, native_find_child, native_children, native_parameter, group_print, group_active, group_resource_state, native_location, group_free }, { clone_unpack, native_find_child, native_children, native_parameter, clone_print, clone_active, clone_resource_state, native_location, clone_free }, { master_unpack, native_find_child, native_children, native_parameter, clone_print, clone_active, clone_resource_state, native_location, clone_free } }; int get_resource_type(const char *name) { if(safe_str_eq(name, XML_CIB_TAG_RESOURCE)) { return pe_native; } else if(safe_str_eq(name, XML_CIB_TAG_GROUP)) { return pe_group; } else if(safe_str_eq(name, XML_CIB_TAG_INCARNATION)) { return pe_clone; } else if(safe_str_eq(name, XML_CIB_TAG_MASTER)) { return pe_master; } return pe_unknown; } static void dup_attr(gpointer key, gpointer value, gpointer user_data) { add_hash_param(user_data, key, value); } void get_meta_attributes(GHashTable *meta_hash, resource_t *rsc, node_t *node, pe_working_set_t *data_set) { GHashTable *node_hash = NULL; if(node) { node_hash = node->details->attrs; } xml_prop_iter(rsc->xml, prop_name, prop_value, add_hash_param(meta_hash, prop_name, prop_value); ); unpack_instance_attributes(rsc->xml, XML_TAG_META_SETS, node_hash, meta_hash, NULL, data_set->now); /* populate from the regular attributes until the GUI can create * meta attributes */ unpack_instance_attributes(rsc->xml, XML_TAG_ATTR_SETS, node_hash, meta_hash, NULL, data_set->now); /* set anything else based on the parent */ if(rsc->parent != NULL) { g_hash_table_foreach(rsc->parent->meta, dup_attr, meta_hash); } } gboolean common_unpack(crm_data_t * xml_obj, resource_t **rsc, resource_t *parent, pe_working_set_t *data_set) { const char *value = NULL; const char *id = crm_element_value(xml_obj, XML_ATTR_ID); crm_log_xml_debug_3(xml_obj, "Processing resource input..."); if(id == NULL) { pe_err("Must specify id tag in "); return FALSE; } else if(rsc == NULL) { pe_err("Nowhere to unpack resource into"); return FALSE; } crm_malloc0(*rsc, sizeof(resource_t)); if(*rsc == NULL) { return FALSE; } (*rsc)->xml = xml_obj; (*rsc)->parent = parent; (*rsc)->ops_xml = find_xml_node(xml_obj, "operations", FALSE); (*rsc)->variant = get_resource_type(crm_element_name(xml_obj)); if((*rsc)->variant == pe_unknown) { pe_err("Unknown resource type: %s", crm_element_name(xml_obj)); crm_free(*rsc); return FALSE; } (*rsc)->parameters = g_hash_table_new_full( g_str_hash,g_str_equal, g_hash_destroy_str,g_hash_destroy_str); (*rsc)->meta = g_hash_table_new_full( g_str_hash,g_str_equal, g_hash_destroy_str,g_hash_destroy_str); value = crm_element_value(xml_obj, XML_RSC_ATTR_INCARNATION); if(value) { (*rsc)->id = crm_concat(id, value, ':'); add_hash_param((*rsc)->meta, XML_RSC_ATTR_INCARNATION, value); } else { (*rsc)->id = crm_strdup(id); } if(parent) { (*rsc)->long_name = crm_concat(parent->long_name, (*rsc)->id, ':'); } else { (*rsc)->long_name = crm_strdup((*rsc)->id); } (*rsc)->fns = &resource_class_functions[(*rsc)->variant]; crm_debug_3("Unpacking resource..."); get_meta_attributes((*rsc)->meta, *rsc, NULL, data_set); if(parent != NULL) { g_hash_table_foreach( parent->parameters, dup_attr, (*rsc)->parameters); } (*rsc)->flags = 0; set_bit((*rsc)->flags, pe_rsc_runnable); set_bit((*rsc)->flags, pe_rsc_provisional); if(data_set->is_managed_default) { set_bit((*rsc)->flags, pe_rsc_managed); } (*rsc)->rsc_cons = NULL; (*rsc)->actions = NULL; (*rsc)->role = RSC_ROLE_STOPPED; (*rsc)->next_role = RSC_ROLE_UNKNOWN; (*rsc)->recovery_type = recovery_stop_start; (*rsc)->stickiness = data_set->default_resource_stickiness; (*rsc)->fail_stickiness = data_set->default_resource_fail_stickiness; value = g_hash_table_lookup((*rsc)->meta, XML_CIB_ATTR_PRIORITY); (*rsc)->priority = crm_parse_int(value, "0"); (*rsc)->effective_priority = (*rsc)->priority; value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_NOTIFY); if(crm_is_true(value)) { set_bit((*rsc)->flags, pe_rsc_notify); } value = g_hash_table_lookup((*rsc)->meta, "is_managed"); if(value != NULL && safe_str_neq("default", value)) { gboolean bool_value = TRUE; cl_str_to_boolean(value, &bool_value); if(bool_value == FALSE) { clear_bit((*rsc)->flags, pe_rsc_managed); } else { set_bit((*rsc)->flags, pe_rsc_managed); } } crm_debug_2("Options for %s", (*rsc)->id); value = g_hash_table_lookup((*rsc)->meta, "globally_unique"); if(value == NULL || crm_is_true(value)) { set_bit((*rsc)->flags, pe_rsc_unique); } value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_RESTART); if(safe_str_eq(value, "restart")) { (*rsc)->restart_type = pe_restart_restart; crm_debug_2("\tDependancy restart handling: restart"); } else { (*rsc)->restart_type = pe_restart_ignore; crm_debug_2("\tDependancy restart handling: ignore"); } value = g_hash_table_lookup((*rsc)->meta, "multiple_active"); if(safe_str_eq(value, "stop_only")) { (*rsc)->recovery_type = recovery_stop_only; crm_debug_2("\tMultiple running resource recovery: stop only"); } else if(safe_str_eq(value, "block")) { (*rsc)->recovery_type = recovery_block; crm_debug_2("\tMultiple running resource recovery: block"); } else { (*rsc)->recovery_type = recovery_stop_start; crm_debug_2("\tMultiple running resource recovery: stop/start"); } value = g_hash_table_lookup((*rsc)->meta, "resource_stickiness"); if(value != NULL && safe_str_neq("default", value)) { (*rsc)->stickiness = char2score(value); } value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_FAIL_STICKINESS); if(value != NULL) { (*rsc)->fail_stickiness = char2score(value); } value = g_hash_table_lookup((*rsc)->meta, XML_RSC_ATTR_TARGET_ROLE); if(value != NULL && safe_str_neq("default", value)) { (*rsc)->next_role = text2role(value); if((*rsc)->next_role == RSC_ROLE_UNKNOWN) { crm_config_err("%s: Unknown value for " XML_RSC_ATTR_TARGET_ROLE": %s", (*rsc)->id, value); } } crm_debug_2("\tDesired next state: %s", (*rsc)->next_role!=RSC_ROLE_UNKNOWN?role2text((*rsc)->next_role):"default"); if((*rsc)->fns->unpack(*rsc, data_set) == FALSE) { return FALSE; } if(is_not_set((*rsc)->flags, pe_rsc_managed)) { crm_warn("Resource %s is currently not managed", (*rsc)->id); } else if(data_set->symmetric_cluster) { resource_location(*rsc, NULL, 0, "symmetric_default", data_set); } crm_debug_2("\tAction notification: %s", is_set((*rsc)->flags, pe_rsc_notify)?"required":"not required"); /* data_set->resources = g_list_append(data_set->resources, (*rsc)); */ return TRUE; } void common_update_score(resource_t *rsc, const char *id, int score) { node_t *node = NULL; node = pe_find_node_id(rsc->allowed_nodes, id); if(node != NULL) { crm_debug_2("Updating score for %s on %s: %d + %d", rsc->id, id, node->weight, score); node->weight = merge_weights(node->weight, score); } if(rsc->children) { slist_iter( child_rsc, resource_t, rsc->children, lpc, common_update_score(child_rsc, id, score); ); } } resource_t *uber_parent(resource_t *rsc) { resource_t *parent = rsc; while(parent != NULL && parent->parent != NULL) { parent = parent->parent; } return parent; } void common_apply_stickiness(resource_t *rsc, node_t *node, pe_working_set_t *data_set) { int fail_count = 0; char *fail_attr = NULL; const char *value = NULL; GHashTable *meta_hash = NULL; if(rsc->children) { slist_iter( child_rsc, resource_t, rsc->children, lpc, common_apply_stickiness(child_rsc, node, data_set); ); return; } meta_hash = g_hash_table_new_full( g_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); get_meta_attributes(meta_hash, rsc, node, data_set); /* update resource preferences that relate to the current node */ value = g_hash_table_lookup(meta_hash, "resource_stickiness"); if(value != NULL && safe_str_neq("default", value)) { rsc->stickiness = char2score(value); } else { rsc->stickiness = data_set->default_resource_stickiness; } value = g_hash_table_lookup(meta_hash, XML_RSC_ATTR_FAIL_STICKINESS); if(value != NULL && safe_str_neq("default", value)) { rsc->fail_stickiness = char2score(value); } else { rsc->fail_stickiness = data_set->default_resource_fail_stickiness; } /* process failure stickiness */ fail_attr = crm_concat("fail-count", rsc->id, '-'); value = g_hash_table_lookup(node->details->attrs, fail_attr); if(value != NULL) { crm_debug("%s: %s", fail_attr, value); fail_count = char2score(value); } crm_free(fail_attr); if(fail_count > 0 && rsc->fail_stickiness != 0) { resource_t *failed = rsc; + int score = fail_count * rsc->fail_stickiness; if(is_not_set(rsc->flags, pe_rsc_unique)) { failed = uber_parent(rsc); } - resource_location(failed, node, fail_count * rsc->fail_stickiness, - "fail_stickiness", data_set); + + /* detect and prevent score underflows */ + if(rsc->fail_stickiness < 0 && (score > 0 || score < -INFINITY)) { + score = -INFINITY; + } + + resource_location(failed, node, score, "fail_stickiness", data_set); crm_info("Setting failure stickiness for %s on %s: %d", - failed->id, node->details->uname, - fail_count * rsc->fail_stickiness); + failed->id, node->details->uname, score); } g_hash_table_destroy(meta_hash); } void common_free(resource_t *rsc) { if(rsc == NULL) { return; } crm_debug_5("Freeing %s %d", rsc->id, rsc->variant); g_list_free(rsc->rsc_cons); g_list_free(rsc->rsc_cons_lhs); if(rsc->parameters != NULL) { g_hash_table_destroy(rsc->parameters); } if(rsc->meta != NULL) { g_hash_table_destroy(rsc->meta); } if(is_set(rsc->flags, pe_rsc_orphan)) { free_xml(rsc->xml); } if(rsc->running_on) { g_list_free(rsc->running_on); rsc->running_on = NULL; } if(rsc->known_on) { g_list_free(rsc->known_on); rsc->known_on = NULL; } if(rsc->actions) { g_list_free(rsc->actions); rsc->actions = NULL; } pe_free_shallow_adv(rsc->rsc_location, FALSE); pe_free_shallow_adv(rsc->allowed_nodes, TRUE); crm_free(rsc->id); crm_free(rsc->long_name); crm_free(rsc->clone_name); crm_free(rsc->allocated_to); crm_free(rsc->variant_opaque); crm_free(rsc); crm_debug_5("Resource freed"); }