diff --git a/crmd/te_callbacks.c b/crmd/te_callbacks.c index f52a1c0a0f..572114f856 100644 --- a/crmd/te_callbacks.c +++ b/crmd/te_callbacks.c @@ -1,526 +1,526 @@ /* * 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 /* For ONLINESTATUS etc */ void te_update_confirm(const char *event, xmlNode *msg); extern char *te_uuid; gboolean shuttingdown = FALSE; crm_graph_t *transition_graph; crm_trigger_t *transition_trigger = NULL; /* #define rsc_op_template "//"XML_TAG_DIFF_ADDED"//"XML_TAG_CIB"//"XML_CIB_TAG_STATE"[@uname='%s']"//"XML_LRM_TAG_RSC_OP"[@id='%s]" */ #define rsc_op_template "//"XML_TAG_DIFF_ADDED"//"XML_TAG_CIB"//"XML_LRM_TAG_RSC_OP"[@id='%s']" static const char *get_node_id(xmlNode *rsc_op) { xmlNode *node = rsc_op; while(node != NULL && safe_str_neq(XML_CIB_TAG_STATE, TYPE(node))) { node = node->parent; } CRM_CHECK(node != NULL, return NULL); return ID(node); } static void process_resource_updates(xmlXPathObject *xpathObj) { /* */ int lpc = 0, max = xpathObj->nodesetval->nodeNr; for(lpc = 0; lpc < max; lpc++) { xmlNode *rsc_op = getXpathResult(xpathObj, lpc); const char *node = get_node_id(rsc_op); process_graph_event(rsc_op, node); } } void te_update_diff(const char *event, xmlNode *msg) { int rc = -1; const char *op = NULL; xmlNode *diff = NULL; xmlNode *change = NULL; xmlNode *cib_top = NULL; xmlXPathObject *xpathObj = NULL; int diff_add_updates = 0; int diff_add_epoch = 0; int diff_add_admin_epoch = 0; int diff_del_updates = 0; int diff_del_epoch = 0; int diff_del_admin_epoch = 0; CRM_CHECK(msg != NULL, return); crm_element_value_int(msg, F_CIB_RC, &rc); if(transition_graph == NULL) { crm_debug_3("No graph"); return; } else if(rc < cib_ok) { crm_debug_3("Filter rc=%d (%s)", rc, cib_error2string(rc)); return; } else if(transition_graph->complete == TRUE && fsa_state != S_IDLE && fsa_state != S_TRANSITION_ENGINE && fsa_state != S_POLICY_ENGINE) { crm_debug_2("Filter state=%s, complete=%d", fsa_state2string(fsa_state), transition_graph->complete); return; } op = crm_element_value(msg, F_CIB_OPERATION); diff = get_message_xml(msg, F_CIB_UPDATE_RESULT); cib_diff_version_details( diff, &diff_add_admin_epoch, &diff_add_epoch, &diff_add_updates, &diff_del_admin_epoch, &diff_del_epoch, &diff_del_updates); crm_debug("Processing diff (%s): %d.%d.%d -> %d.%d.%d (%s)", op, diff_del_admin_epoch,diff_del_epoch,diff_del_updates, diff_add_admin_epoch,diff_add_epoch,diff_add_updates, fsa_state2string(fsa_state)); log_cib_diff(LOG_DEBUG_2, diff, op); /* Process crm_config updates */ cib_top = get_xpath_object("//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_ADDED"//"XML_CIB_TAG_CRMCONFIG, diff, LOG_DEBUG); if(cib_top != NULL) { mainloop_set_trigger(config_read); } /* Process anything that was added */ cib_top = get_xpath_object("//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_ADDED"//"XML_TAG_CIB, diff, LOG_ERR); change = get_object_root(XML_CIB_TAG_CONFIGURATION, cib_top); if(change != NULL) { abort_transition(INFINITY, tg_restart, "Non-status change", change); goto bail; /* configuration changed */ } /* Process anything that was removed */ cib_top = get_xpath_object("//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_REMOVED"//"XML_TAG_CIB, diff, LOG_ERR); if(crm_element_value(cib_top, XML_ATTR_GENERATION)) { - abort_transition(INFINITY, tg_restart, "Non-status change", NULL); + abort_transition(INFINITY, tg_restart, "Non-status change", diff); crm_info("Aborting on change to "XML_ATTR_GENERATION); goto bail; } if(crm_element_value(cib_top, XML_ATTR_GENERATION_ADMIN)) { - abort_transition(INFINITY, tg_restart, "Non-status change", NULL); + abort_transition(INFINITY, tg_restart, "Non-status change", diff); crm_info("Aborting on change to "XML_ATTR_GENERATION_ADMIN); goto bail; } change = get_object_root(XML_CIB_TAG_CONFIGURATION, cib_top); if(change != NULL) { abort_transition(INFINITY, tg_restart, "Non-status change", change); goto bail; } /* Transient Attributes - Added/Updated */ xpathObj = xpath_search(diff,"//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_ADDED"//"XML_TAG_TRANSIENT_NODEATTRS); if(xpathObj && xpathObj->nodesetval->nodeNr > 0) { xmlNode *aborted = getXpathResult(xpathObj, 0); abort_transition(INFINITY, tg_restart, "Transient attribute: update", aborted); goto bail; } else if(xpathObj) { xmlXPathFreeObject(xpathObj); } /* Transient Attributes - Removed */ xpathObj = xpath_search(diff,"//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_REMOVED"//"XML_TAG_TRANSIENT_NODEATTRS); if(xpathObj && xpathObj->nodesetval->nodeNr > 0) { xmlNode *aborted = getXpathResult(xpathObj, 0); abort_transition(INFINITY, tg_restart, "Transient attribute: removal", aborted); goto bail; } else if(xpathObj) { xmlXPathFreeObject(xpathObj); } /* Check for node state updates... possibly from a shutdown we requested */ xpathObj = xpath_search(diff, "//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_ADDED"//"XML_CIB_TAG_STATE); if(xpathObj) { int lpc = 0, max = xpathObj->nodesetval->nodeNr; for(lpc = 0; lpc < max; lpc++) { xmlNode *node = getXpathResult(xpathObj, lpc); const char *event_node = crm_element_value(node, XML_ATTR_ID); const char *ccm_state = crm_element_value(node, XML_CIB_ATTR_INCCM); const char *ha_state = crm_element_value(node, XML_CIB_ATTR_HASTATE); const char *shutdown_s = crm_element_value(node, XML_CIB_ATTR_SHUTDOWN); const char *crmd_state = crm_element_value(node, XML_CIB_ATTR_CRMDSTATE); if(safe_str_eq(ccm_state, XML_BOOLEAN_FALSE) || safe_str_eq(ha_state, DEADSTATUS) || safe_str_eq(crmd_state, CRMD_JOINSTATE_DOWN)) { crm_action_t *shutdown = match_down_event(0, event_node, NULL); if(shutdown != NULL) { const char *task = crm_element_value(shutdown->xml, XML_LRM_ATTR_TASK); if(safe_str_neq(task, CRM_OP_FENCE)) { /* Wait for stonithd to tell us it is complete via tengine_stonith_callback() */ crm_debug("Confirming %s op %d", task, shutdown->id); /* match->confirmed = TRUE; */ stop_te_timer(shutdown->timer); 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); } fail_incompletable_actions(transition_graph, event_node); } if(shutdown_s) { int shutdown = crm_parse_int(shutdown_s, NULL); if(shutdown > 0) { crm_info("Aborting on "XML_CIB_ATTR_SHUTDOWN" attribute for %s", event_node); abort_transition(INFINITY, tg_restart, "Shutdown request", node); } } } xmlXPathFreeObject(xpathObj); } /* * Check for and fast-track the processing of LRM refreshes * In large clusters this can result in _huge_ speedups * * Unfortunately we can only do so when there are no pending actions * Otherwise we could miss updates we're waiting for and stall * */ xpathObj = NULL; if(transition_graph->pending == 0) { xpathObj = xpath_search(diff, "//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_ADDED"//"XML_LRM_TAG_RESOURCE); } if(xpathObj) { int updates = xpathObj->nodesetval->nodeNr; if(updates > 1) { /* Updates by, or in response to, TE actions will never contain updates * for more than one resource at a time */ crm_info("Detected LRM refresh - %d resources updated: Skipping all resource events", updates); abort_transition(INFINITY, tg_restart, "LRM Refresh", diff); goto bail; } xmlXPathFreeObject(xpathObj); } /* Process operation updates */ xpathObj = xpath_search(diff, "//"F_CIB_UPDATE_RESULT"//"XML_TAG_DIFF_ADDED"//"XML_LRM_TAG_RSC_OP); if(xpathObj) { process_resource_updates(xpathObj); xmlXPathFreeObject(xpathObj); } /* Detect deleted (as opposed to replaced or added) actions - eg. crm_resource -C */ xpathObj = xpath_search(diff, "//"XML_TAG_DIFF_REMOVED"//"XML_LRM_TAG_RSC_OP); if(xpathObj) { int lpc = 0, max = xpathObj->nodesetval->nodeNr; for(lpc = 0; lpc < max; lpc++) { int max = 0; const char *op_id = NULL; char *rsc_op_xpath = NULL; xmlXPathObject *op_match = NULL; xmlNode *match = getXpathResult(xpathObj, lpc); CRM_CHECK(match != NULL, continue); op_id = ID(match); max = strlen(rsc_op_template) + strlen(op_id) + 1; crm_malloc0(rsc_op_xpath, max); snprintf(rsc_op_xpath, max, rsc_op_template, op_id); op_match = xpath_search(diff, rsc_op_xpath); if(op_match == NULL || op_match->nodesetval->nodeNr == 0) { /* Prevent false positives by matching cancelations too */ const char *node = get_node_id(match); crm_action_t *cancelled = get_cancel_action(op_id, node); if(cancelled == NULL) { crm_debug("No match for deleted action %s (%s on %s)", rsc_op_xpath, op_id, node); abort_transition(INFINITY, tg_restart, "Resource op removal", match); if(op_match) { xmlXPathFreeObject(op_match); } crm_free(rsc_op_xpath); goto bail; } else { crm_debug("Deleted lrm_rsc_op %s on %s was for graph event %d", op_id, node, cancelled->id); } } if(op_match) { xmlXPathFreeObject(op_match); } crm_free(rsc_op_xpath); } } bail: if(xpathObj) { xmlXPathFreeObject(xpathObj); } } gboolean process_te_message(xmlNode *msg, xmlNode *xml_data) { const char *from = crm_element_value(msg, F_ORIG); const char *sys_to = crm_element_value(msg, F_CRM_SYS_TO); const char *sys_from = crm_element_value(msg, F_CRM_SYS_FROM); const char *ref = crm_element_value(msg, XML_ATTR_REFERENCE); const char *op = crm_element_value(msg, F_CRM_TASK); const char *type = crm_element_value(msg, F_CRM_MSG_TYPE); crm_debug_2("Processing %s (%s) message", op, ref); crm_log_xml(LOG_DEBUG_3, "ipc", msg); if(op == NULL){ /* error */ } else if(sys_to == NULL || strcasecmp(sys_to, CRM_SYSTEM_TENGINE) != 0) { crm_debug_2("Bad sys-to %s", crm_str(sys_to)); return FALSE; } else if(safe_str_eq(op, CRM_OP_INVOKE_LRM) && safe_str_eq(sys_from, CRM_SYSTEM_LRMD) /* && safe_str_eq(type, XML_ATTR_RESPONSE) */ ){ xmlXPathObject *xpathObj = NULL; crm_log_xml(LOG_DEBUG_2, "Processing (N)ACK", msg); crm_info("Processing (N)ACK %s from %s", crm_element_value(msg, XML_ATTR_REFERENCE), from); xpathObj = xpath_search(xml_data, "//"XML_LRM_TAG_RSC_OP); if(xpathObj) { process_resource_updates(xpathObj); xmlXPathFreeObject(xpathObj); xpathObj = NULL; } else { crm_log_xml(LOG_ERR, "Invalid (N)ACK", msg); return FALSE; } } else { crm_err("Unknown command: %s::%s from %s", type, op, sys_from); } crm_debug_3("finished processing message"); return TRUE; } void tengine_stonith_callback( stonith_t *stonith, const xmlNode *msg, int call_id, int rc, xmlNode *output, void *userdata) { char *uuid = NULL; int target_rc = -1; int stonith_id = -1; int transition_id = -1; crm_action_t *action = NULL; CRM_CHECK(userdata != NULL, return); crm_log_xml_info(output, "StonithOp"); crm_info("Stonith operation %d/%s: %s (%d)", call_id, (char*)userdata, stonith_error2string(rc), rc); if(AM_I_DC == FALSE) { return; } /* crm_info("call=%d, optype=%d, node_name=%s, result=%d, node_list=%s, action=%s", */ /* op->call_id, op->optype, op->node_name, op->op_result, */ /* (char *)op->node_list, op->private_data); */ /* filter out old STONITH actions */ CRM_CHECK(decode_transition_key(userdata, &uuid, &transition_id, &stonith_id, &target_rc), crm_err("Invalid event detected"); goto bail; ); if(transition_graph->complete || stonith_id < 0 || safe_str_neq(uuid, te_uuid) || transition_graph->id != transition_id) { crm_info("Ignoring STONITH action initiated outside" " of the current transition"); goto bail; } /* this will mark the event complete if a match is found */ action = get_action(stonith_id, TRUE); if(action == NULL) { crm_err("Stonith action not matched"); goto bail; } if(rc == stonith_ok) { const char *target = crm_element_value(action->xml, XML_LRM_ATTR_TARGET); const char *uuid = crm_element_value(action->xml, XML_LRM_ATTR_TARGET_UUID); crm_info("Stonith of %s passed", target); send_stonith_update(action, target, uuid); } else { const char *target = crm_element_value_const(action->xml, XML_LRM_ATTR_TARGET); const char *allow_fail = crm_meta_value(action->params, XML_ATTR_TE_ALLOWFAIL); action->failed = TRUE; if(crm_is_true(allow_fail) == FALSE) { crm_err("Stonith of %s failed (%d)... aborting transition.", target, rc); abort_transition(INFINITY, tg_restart, "Stonith failed", NULL); } } update_graph(transition_graph, action); trigger_graph(); bail: crm_free(userdata); crm_free(uuid); return; } void cib_fencing_updated(xmlNode *msg, int call_id, int rc, xmlNode *output, void *user_data) { if(rc < cib_ok) { crm_err("Fencing update %d for %s: failed - %s (%d)", call_id, (char*)user_data, cib_error2string(rc), rc); crm_log_xml_warn(msg, "Failed update"); abort_transition(INFINITY, tg_shutdown, "CIB update failed", NULL); } else { crm_info("Fencing update %d for %s: complete", call_id, (char*)user_data); } crm_free(user_data); } void cib_action_updated(xmlNode *msg, int call_id, int rc, xmlNode *output, void *user_data) { if(rc < cib_ok) { crm_err("Update %d FAILED: %s", call_id, cib_error2string(rc)); } } void cib_failcount_updated(xmlNode *msg, int call_id, int rc, xmlNode *output, void *user_data) { if(rc < cib_ok) { crm_err("Update %d FAILED: %s", call_id, cib_error2string(rc)); } } gboolean action_timer_callback(gpointer data) { crm_action_timer_t *timer = NULL; CRM_CHECK(data != NULL, return FALSE); timer = (crm_action_timer_t*)data; stop_te_timer(timer); crm_warn("Timer popped (timeout=%d, abort_level=%d, complete=%s)", timer->timeout, transition_graph->abort_priority, transition_graph->complete?"true":"false"); CRM_CHECK(timer->action != NULL, return FALSE); if(transition_graph->complete) { crm_warn("Ignoring timeout while not in transition"); } else if(timer->reason == timeout_action_warn) { print_action( LOG_WARNING,"Action missed its timeout: ", timer->action); /* Don't check the FSA state * * We might also be in S_INTEGRATION or some other state waiting for this * action so we can close the transition and continue */ } else { /* fail the action */ gboolean send_update = TRUE; const char *task = crm_element_value(timer->action->xml, XML_LRM_ATTR_TASK); print_action(LOG_ERR, "Aborting transition, action lost: ", timer->action); timer->action->failed = TRUE; timer->action->confirmed = TRUE; abort_transition(INFINITY, tg_restart, "Action lost", NULL); update_graph(transition_graph, timer->action); trigger_graph(); if(timer->action->type != action_type_rsc) { send_update = FALSE; } else if(safe_str_eq(task, "cancel")) { /* we dont need to update the CIB with these */ send_update = FALSE; } if(send_update) { /* cib_action_update(timer->action, LRM_OP_PENDING, EXECRA_STATUS_UNKNOWN); */ cib_action_update(timer->action, LRM_OP_TIMEOUT, EXECRA_UNKNOWN_ERROR); } } return FALSE; }