diff --git a/transitioner/events.c b/transitioner/events.c index 1c146cd991..9116009479 100644 --- a/transitioner/events.c +++ b/transitioner/events.c @@ -1,542 +1,544 @@ /* * 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 #include #include #include #include #include #include crm_data_t *need_abort(crm_data_t *update); void process_graph_event(crm_data_t *event, const char *event_node); int match_graph_event(int action_id, crm_data_t *event, const char *event_node, int op_status, int op_rc); crm_data_t * need_abort(crm_data_t *update) { crm_data_t *section_xml = NULL; const char *section = NULL; if(update == NULL) { return NULL; } xml_prop_iter(update, name, value, if(safe_str_eq(name, XML_ATTR_HAVE_QUORUM)) { goto do_abort; /* possibly not required */ } else if(safe_str_eq(name, XML_ATTR_NUMPEERS)) { goto do_abort; } else if(safe_str_eq(name, XML_ATTR_GENERATION)) { goto do_abort; } else if(safe_str_eq(name, XML_ATTR_GENERATION_ADMIN)) { goto do_abort; } continue; do_abort: crm_debug("Aborting on change to %s", name); crm_log_xml_debug(update, "Abort: CIB Attrs"); return update; ); section = XML_CIB_TAG_NODES; section_xml = get_object_root(section, update); xml_child_iter(section_xml, child, return section_xml; ); section = XML_CIB_TAG_RESOURCES; section_xml = get_object_root(section, update); xml_child_iter(section_xml, child, return section_xml; ); section = XML_CIB_TAG_CONSTRAINTS; section_xml = get_object_root(section, update); xml_child_iter(section_xml, child, return section_xml; ); section = XML_CIB_TAG_CRMCONFIG; section_xml = get_object_root(section, update); xml_child_iter(section_xml, child, return section_xml; ); return NULL; } static gboolean fail_incompletable_actions(crm_graph_t *graph, const char *down_node) { const char *target = NULL; crm_data_t *last_action = NULL; slist_iter( synapse, synapse_t, graph->synapses, lpc, if (synapse->confirmed) { continue; } slist_iter( action, crm_action_t, synapse->actions, lpc, if(action->type == action_type_pseudo || action->confirmed) { continue; } target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET); if(safe_str_eq(target, down_node)) { action->failed = TRUE; last_action = action->xml; update_graph(graph, action); crm_notice("Action %d (%s) is scheduled for %s (offline)", action->id, ID(action->xml), down_node); } ); ); if(last_action != NULL) { crm_warn("Node %s shutdown resulted in un-runnable actions", down_node); abort_transition(INFINITY, tg_restart, "Node failure", last_action); return TRUE; } return FALSE; } gboolean extract_event(crm_data_t *msg) { int shutdown = 0; const char *event_node = NULL; /* [cib fragment] ... */ crm_debug_4("Extracting event from %s", crm_element_name(msg)); xml_child_iter_filter( msg, node_state, XML_CIB_TAG_STATE, crm_data_t *attrs = NULL; crm_data_t *resources = NULL; const char *ccm_state = crm_element_value( node_state, XML_CIB_ATTR_INCCM); const char *crmd_state = crm_element_value( node_state, XML_CIB_ATTR_CRMDSTATE); /* Transient node attribute changes... */ event_node = crm_element_value(node_state, XML_ATTR_ID); crm_debug_2("Processing state update from %s", event_node); crm_log_xml_debug_3(node_state, "Processing"); attrs = find_xml_node( node_state, XML_TAG_TRANSIENT_NODEATTRS, FALSE); if(attrs != NULL) { crm_info("Aborting on "XML_TAG_TRANSIENT_NODEATTRS" changes for %s", event_node); abort_transition(INFINITY, tg_restart, XML_TAG_TRANSIENT_NODEATTRS, attrs); } resources = find_xml_node(node_state, XML_CIB_TAG_LRM, FALSE); resources = find_xml_node( resources, XML_LRM_TAG_RESOURCES, FALSE); /* LRM resource update... */ xml_child_iter( resources, rsc, xml_child_iter( rsc, rsc_op, crm_log_xml_debug_3(rsc_op, "Processing resource update"); process_graph_event(rsc_op, event_node); ); ); /* * node state update... possibly from a shutdown we requested */ if(safe_str_eq(ccm_state, XML_BOOLEAN_FALSE) || safe_str_eq(crmd_state, CRMD_JOINSTATE_DOWN)) { crm_action_t *shutdown = NULL; shutdown = match_down_event(0, event_node, NULL); if(shutdown != NULL) { update_graph(transition_graph, shutdown); trigger_graph(); } else { crm_info("Stonith/shutdown of %s not matched", event_node); abort_transition(INFINITY, tg_restart, "Node failure", node_state); } fail_incompletable_actions(transition_graph, event_node); } shutdown = 0; ha_msg_value_int(node_state, XML_CIB_ATTR_SHUTDOWN, &shutdown); if(shutdown != 0) { crm_info("Aborting on "XML_CIB_ATTR_SHUTDOWN" attribute for %s", event_node); abort_transition(INFINITY, tg_restart, "Shutdown request", node_state); } ); return TRUE; } static void update_failcount(crm_data_t *event, const char *event_node, int rc) { int interval = 0; char *task = NULL; char *rsc_id = NULL; char *attr_name = NULL; const char *id = ID(event); const char *on_uuid = event_node; const char *value = XML_NVPAIR_ATTR_VALUE"++"; if(rc == 99) { /* this is an internal code for "we're busy, try again" */ return; } CRM_CHECK(on_uuid != NULL, return); CRM_CHECK(parse_op_key(id, &rsc_id, &task, &interval), crm_err("Couldn't parse: %s", ID(event)); goto bail); CRM_CHECK(task != NULL, goto bail); CRM_CHECK(rsc_id != NULL, goto bail); if(safe_str_eq(task, CRMD_ACTION_START) || safe_str_eq(task, CRMD_ACTION_STOP)) { interval = 1; value = "INFINITY"; } if(interval > 0) { attr_name = crm_concat("fail-count", rsc_id, '-'); crm_warn("Updating failcount for %s on %s after failed %s: rc=%d", rsc_id, on_uuid, task, rc); update_attr(te_cib_conn, cib_none, XML_CIB_TAG_STATUS, on_uuid, NULL,NULL, attr_name, value, FALSE); crm_free(attr_name); } bail: crm_free(rsc_id); crm_free(task); } static int status_from_rc(crm_action_t *action, int orig_status, int rc) { int target_rc = 0; int status = orig_status; const char *target_rc_s = g_hash_table_lookup( action->params, crm_meta_name(XML_ATTR_TE_TARGET_RC)); if(target_rc_s != NULL) { crm_debug_2("Target rc: %s vs. %d", target_rc_s, rc); target_rc = crm_parse_int(target_rc_s, NULL); } if(target_rc == rc) { crm_debug_2("Target rc: == %d", rc); if(status != LRM_OP_DONE) { crm_debug_2("Re-mapping op status to" " LRM_OP_DONE for rc=%d", rc); status = LRM_OP_DONE; } } else { crm_debug_2("Target rc: != %d", rc); if(status != LRM_OP_ERROR) { crm_info("Re-mapping op status to" " LRM_OP_ERROR for rc=%d", rc); status = LRM_OP_ERROR; } } /* 99 is the code we use for direct nack's */ if(rc != 99 && status != LRM_OP_DONE) { const char *task, *uname; task = crm_element_value(action->xml, XML_LRM_ATTR_TASK); uname = crm_element_value(action->xml, XML_LRM_ATTR_TARGET); crm_warn("Action %s on %s failed (target: %s vs. rc: %d): %s", task, uname, crm_str(target_rc_s), rc, op_status2text(status)); } return status; } /* * returns the ID of the action if a match is found * returns -1 if a match was not found * returns -2 if a match was found but the action failed (and was * not allowed to) */ int match_graph_event(int action_id, crm_data_t *event, const char *event_node, int op_status, int op_rc) { const char *target = NULL; const char *allow_fail = NULL; const char *this_event = ID(event); crm_action_t *action = NULL; action = get_action(action_id, FALSE); if(action == NULL) { return -1; } op_status = status_from_rc(action, op_status, op_rc); if(op_status != LRM_OP_DONE) { update_failcount(event, event_node, op_rc); } /* Process OP status */ switch(op_status) { case LRM_OP_PENDING: crm_debug("Ignoring pending operation"); return action->id; break; case LRM_OP_DONE: break; case LRM_OP_ERROR: case LRM_OP_TIMEOUT: case LRM_OP_NOTSUPPORTED: action->failed = TRUE; break; case LRM_OP_CANCELLED: /* do nothing?? */ crm_err("Dont know what to do for cancelled ops yet"); break; default: action->failed = TRUE; crm_err("Unsupported action result: %d", op_status); } /* stop this event's timer if it had one */ stop_te_timer(action->timer); action->confirmed = TRUE; update_graph(transition_graph, action); trigger_graph(); if(action->failed) { allow_fail = g_hash_table_lookup( action->params, crm_meta_name(XML_ATTR_TE_ALLOWFAIL)); if(crm_is_true(allow_fail)) { action->failed = FALSE; } } if(action->failed) { abort_transition(action->synapse->priority+1, tg_restart, "Event failed", event); } target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET); te_log_action(LOG_INFO, "Action %s (%d) confirmed on %s (rc=%d)", crm_str(this_event), action->id, crm_str(target), op_status); return action->id; } crm_action_t * get_action(int id, gboolean confirmed) { slist_iter( synapse, synapse_t, transition_graph->synapses, lpc, slist_iter( action, crm_action_t, synapse->actions, lpc2, if(action->id == id) { if(confirmed) { stop_te_timer(action->timer); action->confirmed = TRUE; } return action; } ) ); return NULL; } crm_action_t * match_down_event(int id, const char *target, const char *filter) { const char *this_action = NULL; const char *this_node = NULL; crm_action_t *match = NULL; slist_iter( synapse, synapse_t, transition_graph->synapses, lpc, /* lookup event */ slist_iter( action, crm_action_t, synapse->actions, lpc2, if(id > 0 && action->id == id) { match = action; break; } this_action = crm_element_value( action->xml, XML_LRM_ATTR_TASK); if(action->type != action_type_crm) { continue; } else if(safe_str_eq(this_action, CRM_OP_LRM_REFRESH)){ continue; } else if(filter != NULL && safe_str_neq(this_action, filter)) { continue; } this_node = crm_element_value( action->xml, XML_LRM_ATTR_TARGET_UUID); if(this_node == NULL) { crm_log_xml_err(action->xml, "No node uuid"); } if(safe_str_neq(this_node, target)) { crm_debug("Action %d : Node mismatch: %s", action->id, this_node); continue; } match = action; break; ); if(match != NULL) { /* stop this event's timer if it had one */ break; } ); if(match != NULL) { /* stop this event's timer if it had one */ crm_debug("Match found for action %d: %s on %s", id, crm_element_value(match->xml, XML_LRM_ATTR_TASK_KEY), target); stop_te_timer(match->timer); match->confirmed = TRUE; } else if(id > 0) { crm_err("No match for action %d", id); } else { crm_warn("No match for shutdown action on %s", target); } return match; } void process_graph_event(crm_data_t *event, const char *event_node) { int rc = -1; int status = -1; int action = -1; int transition_num = -1; char *update_te_uuid = NULL; gboolean passed = FALSE; const char *id = NULL; const char *magic = NULL; CRM_ASSERT(event != NULL); id = ID(event); magic = crm_element_value(event, XML_ATTR_TRANSITION_MAGIC); if(magic == NULL) { /* non-change */ return; } CRM_CHECK(decode_transition_magic( magic, &update_te_uuid, &transition_num, &action, &status, &rc), crm_err("Invalid event %s detected", id); abort_transition(INFINITY, tg_restart,"Bad event", event); ); if(status == LRM_OP_PENDING) { goto bail; } if(transition_num == -1) { - crm_err("Action %s initiated outside of a transition", id); + crm_err("Action %s (%s) initiated outside of a transition", + id, magic); abort_transition(INFINITY, tg_restart,"Unexpected event",event); } else if(action < 0 || safe_str_neq(update_te_uuid, te_uuid)) { - crm_info("Action %s initiated by a different transitioner", id); + crm_info("Action %s (%s) initiated by a different transitioner", + id, magic); abort_transition(INFINITY, tg_restart,"Foreign event", event); } else if(transition_graph->id != transition_num) { crm_info("Detected action %s from a different transition:" " %d vs. %d", id, transition_num, transition_graph->id); abort_transition(INFINITY, tg_restart,"Old event", event); } else if(transition_graph->complete) { crm_info("Action %s arrived after a completed transition", id); abort_transition(INFINITY, tg_restart, "Inactive graph", event); } else if(match_graph_event( action, event, event_node, status, rc) < 0) { crm_err("Unknown graph action %s", id); abort_transition(INFINITY, tg_restart, "Unknown event", event); } else { passed = TRUE; crm_debug_2("Processed update to %s: %s", id, magic); } if(passed == FALSE && rc != EXECRA_OK) { update_failcount(event, event_node, rc); } bail: crm_free(update_te_uuid); return; }