static 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 master score as that may * lead to clone shuffling */ continue; } score = master_score(child_rsc, node, 0); if (score > 0) { new_score = merge_weights(node->weight, score); if (new_score != node->weight) { crm_trace("\t%s: Updating preference for %s (%d->%d)", child_rsc->id, node->details->uname, node->weight, new_score); node->weight = new_score; } } new_score = max(child_rsc->priority, score); if (new_score != child_rsc->priority) { crm_trace("\t%s: Updating priority (%d->%d)", child_rsc->id, child_rsc->priority, new_score); child_rsc->priority = new_score; } } } }
node_t * master_color(resource_t * rsc, node_t * prefer, 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; node_t *cons_node = NULL; enum rsc_role_e next_role = RSC_ROLE_UNKNOWN; clone_variant_data_t *clone_data = NULL; get_clone_variant_data(clone_data, rsc); if (is_not_set(rsc->flags, pe_rsc_provisional)) { return NULL; } else if (is_set(rsc->flags, pe_rsc_allocating)) { crm_debug("Dependency loop detected involving %s", rsc->id); return NULL; } apply_master_prefs(rsc); clone_color(rsc, prefer, data_set); set_bit(rsc->flags, pe_rsc_allocating); /* 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 */ gIter = rsc->children; for (; gIter != NULL; gIter = gIter->next) { GListPtr list = NULL; resource_t *child_rsc = (resource_t *) gIter->data; crm_trace("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: CRM_CHECK(chosen != NULL, break); /* * 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 master-score is present */ child_rsc->priority = master_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->rsc_location); apply_master_location(rsc->rsc_location); gIter2 = child_rsc->rsc_cons; for (; 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); } child_rsc->sort_index = child_rsc->priority; crm_trace("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_DEBUG_3, rsc, "Pre merge", rsc->allowed_nodes); master_promotion_order(rsc, data_set); /* mark the first N as masters */ gIter = rsc->children; for (; gIter != NULL; gIter = gIter->next) { resource_t *child_rsc = (resource_t *) gIter->data; char *score = score2char(child_rsc->sort_index); chosen = child_rsc->fns->location(child_rsc, NULL, FALSE); if (show_scores) { fprintf(stdout, "%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); } crm_free(score); chosen = NULL; /* nuke 'chosen' so that we don't promote more than the * required number of instances */ if (child_rsc->sort_index < 0) { crm_trace("Not supposed to promote child: %s", child_rsc->id); } else if (promoted < clone_data->master_max || is_not_set(rsc->flags, pe_rsc_managed)) { chosen = can_be_master(child_rsc); } crm_debug("%s master score: %d", child_rsc->id, child_rsc->priority); if (chosen == NULL) { set_role_slave(child_rsc, FALSE); continue; } chosen->count++; crm_info("Promoting %s (%s %s)", child_rsc->id, role2text(child_rsc->role), chosen->details->uname); set_role_master(child_rsc); promoted++; } clone_data->masters_allocated = promoted; crm_info("%s: Promoted %d instances of a possible %d to master", rsc->id, promoted, clone_data->master_max); clear_bit(rsc->flags, pe_rsc_provisional); clear_bit(rsc->flags, pe_rsc_allocating); return NULL; }
int master_score(resource_t * rsc, node_t * node, int not_set_value) { char *attr_name; char *name = rsc->id; const char *attr_value = NULL; int score = not_set_value, len = 0; if (rsc->children) { GListPtr gIter = rsc->children; for (; gIter != NULL; gIter = gIter->next) { resource_t *child = (resource_t *) gIter->data; int c_score = master_score(child, node, not_set_value); if (score == not_set_value) { score = c_score; } else { score += c_score; } } return score; } if (rsc->fns->state(rsc, TRUE) < RSC_ROLE_STARTED) { return score; } if (node != NULL) { node_t *match = pe_find_node_id(rsc->running_on, node->details->id); if (match == NULL) { crm_trace("%s is not active on %s - ignoring", rsc->id, 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) { crm_trace("%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; } len = 8 + strlen(name); crm_malloc0(attr_name, len); sprintf(attr_name, "master-%s", name); if (node) { attr_value = g_hash_table_lookup(node->details->attrs, attr_name); crm_trace("%s: %s[%s] = %s", rsc->id, attr_name, node->details->uname, crm_str(attr_value)); } if (attr_value != NULL) { score = char2score(attr_value); } crm_free(attr_name); return score; }
static int master_score(resource_t * rsc, node_t * node, int not_set_value) { char *attr_name; char *name = rsc->id; const char *attr_value = NULL; int score = not_set_value, len = 0; if (rsc->children) { GListPtr gIter = rsc->children; for (; gIter != NULL; gIter = gIter->next) { resource_t *child = (resource_t *) gIter->data; int c_score = master_score(child, node, not_set_value); if (score == not_set_value) { score = c_score; } else { score += c_score; } } return score; } if (node == NULL) { if (rsc->fns->state(rsc, TRUE) < RSC_ROLE_STARTED) { pe_rsc_trace(rsc, "Ingoring master score for %s: unknown state", rsc->id); return score; } } else { node_t *match = pe_find_node_id(rsc->running_on, node->details->id); node_t *known = pe_hash_table_lookup(rsc->known_on, node->details->id); 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 (match == NULL && known == NULL) { pe_rsc_trace(rsc, "%s (aka. %s) has been filtered on %s - ignoring", 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; } len = 8 + strlen(name); attr_name = calloc(1, len); sprintf(attr_name, "master-%s", name); if (node) { attr_value = g_hash_table_lookup(node->details->attrs, attr_name); pe_rsc_trace(rsc, "%s: %s[%s] = %s", rsc->id, attr_name, node->details->uname, crm_str(attr_value)); } if (attr_value != NULL) { score = char2score(attr_value); } free(attr_name); return score; }