diff --git a/crmd/callbacks.c b/crmd/callbacks.c index 62064a1d84..4501dd5412 100644 --- a/crmd/callbacks.c +++ b/crmd/callbacks.c @@ -1,307 +1,309 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include void crmd_ha_connection_destroy(gpointer user_data); /* From join_dc... */ extern gboolean check_join_state(enum crmd_fsa_state cur_state, const char *source); void crmd_ha_connection_destroy(gpointer user_data) { crm_trace("Invoked"); if (is_set(fsa_input_register, R_HA_DISCONNECTED)) { /* we signed out, so this is expected */ crm_info("Heartbeat disconnection complete"); return; } crm_crit("Lost connection to heartbeat service!"); register_fsa_input(C_HA_DISCONNECT, I_ERROR, NULL); trigger_fsa(fsa_source); } void crmd_ha_msg_filter(xmlNode * msg) { if (AM_I_DC) { const char *sys_from = crm_element_value(msg, F_CRM_SYS_FROM); if (safe_str_eq(sys_from, CRM_SYSTEM_DC)) { const char *from = crm_element_value(msg, F_ORIG); if (safe_str_neq(from, fsa_our_uname)) { int level = LOG_INFO; const char *op = crm_element_value(msg, F_CRM_TASK); /* make sure the election happens NOW */ if (fsa_state != S_ELECTION) { ha_msg_input_t new_input; level = LOG_WARNING; new_input.msg = msg; register_fsa_error_adv(C_FSA_INTERNAL, I_ELECTION, NULL, &new_input, __FUNCTION__); } do_crm_log(level, "Another DC detected: %s (op=%s)", from, op); goto done; } } } else { const char *sys_to = crm_element_value(msg, F_CRM_SYS_TO); if (safe_str_eq(sys_to, CRM_SYSTEM_DC)) { return; } } /* crm_log_xml_trace("HA[inbound]", msg); */ route_message(C_HA_MESSAGE, msg); done: trigger_fsa(fsa_source); } #define state_text(state) ((state)? (const char *)(state) : "in unknown state") void peer_update_callback(enum crm_status_type type, crm_node_t * node, const void *data) { uint32_t old = 0; uint32_t changed = 0; bool appeared = FALSE; bool is_remote = is_set(node->flags, crm_remote_node); const char *status = NULL; /* Crmd waits to receive some information from the membership layer before * declaring itself operational. If this is being called for a cluster node, * indicate that we have it. */ if (!is_remote) { set_bit(fsa_input_register, R_PEER_DATA); } if (node->uname == NULL) { return; } switch (type) { case crm_status_uname: /* If we've never seen the node, then it also wont be in the status section */ crm_info("%s is now %s", node->uname, state_text(node->state)); return; case crm_status_rstate: case crm_status_nstate: /* This callback should not be called unless the state actually * changed, but here's a failsafe just in case. */ CRM_CHECK(safe_str_neq(data, node->state), return); crm_info("%s node %s is now %s (was %s)", (is_remote? "Remote" : "Cluster"), node->uname, state_text(node->state), state_text(data)); if (safe_str_eq(CRM_NODE_MEMBER, node->state)) { appeared = TRUE; if (!is_remote) { remove_stonith_cleanup(node->uname); } } crmd_notify_node_event(node); break; case crm_status_processes: if (data) { old = *(const uint32_t *)data; changed = node->processes ^ old; } status = (node->processes & proc_flags) ? ONLINESTATUS : OFFLINESTATUS; crm_info("Client %s/%s now has status [%s] (DC=%s, changed=%6x)", node->uname, peer2text(proc_flags), status, AM_I_DC ? "true" : crm_str(fsa_our_dc), changed); if ((changed & proc_flags) == 0) { /* Peer process did not change */ crm_trace("No change %6x %6x %6x", old, node->processes, proc_flags); return; } else if (is_not_set(fsa_input_register, R_CIB_CONNECTED)) { crm_trace("Not connected"); return; } else if (fsa_state == S_STOPPING) { crm_trace("Stopping"); return; } appeared = (node->processes & proc_flags) != 0; if (safe_str_eq(node->uname, fsa_our_uname) && (node->processes & proc_flags) == 0) { /* Did we get evicted? */ crm_notice("Our peer connection failed"); register_fsa_input(C_CRMD_STATUS_CALLBACK, I_ERROR, NULL); } else if (safe_str_eq(node->uname, fsa_our_dc) && crm_is_peer_active(node) == FALSE) { /* Did the DC leave us? */ crm_notice("Our peer on the DC (%s) is dead", fsa_our_dc); register_fsa_input(C_CRMD_STATUS_CALLBACK, I_ELECTION, NULL); if (compare_version(fsa_our_dc_version, "3.0.9") > 0) { erase_status_tag(node->uname, XML_TAG_TRANSIENT_NODEATTRS, cib_scope_local); } } else if(AM_I_DC && appeared == FALSE) { crm_info("Peer %s left us", node->uname); erase_status_tag(node->uname, XML_TAG_TRANSIENT_NODEATTRS, cib_scope_local); /* crm_update_peer_join(__FUNCTION__, node, crm_join_none); */ } break; } if (AM_I_DC) { xmlNode *update = NULL; int flags = node_update_peer; gboolean alive = is_remote? appeared : crm_is_peer_active(node); crm_action_t *down = match_down_event(node->uuid, appeared); crm_trace("Alive=%d, appeared=%d, down=%d", alive, appeared, (down? down->id : -1)); if (alive && type == crm_status_processes) { register_fsa_input_before(C_FSA_INTERNAL, I_NODE_JOIN, NULL); } if (down) { const char *task = crm_element_value(down->xml, XML_LRM_ATTR_TASK); if (safe_str_eq(task, CRM_OP_FENCE)) { /* tengine_stonith_callback() confirms fence actions */ crm_trace("Updating CIB %s stonithd reported fencing of %s complete", (down->confirmed? "after" : "before"), node->uname); } else if ((alive == FALSE) && safe_str_eq(task, CRM_OP_SHUTDOWN)) { - crm_notice("%s of %s (op %d) is complete", task, node->uname, down->id); + crm_notice("%s of peer %s is complete "CRM_XS" op=%d", + task, node->uname, down->id); + /* down->confirmed = TRUE; */ stop_te_timer(down->timer); if (!is_remote) { flags |= node_update_join | node_update_expected; crmd_peer_down(node, FALSE); check_join_state(fsa_state, __FUNCTION__); } update_graph(transition_graph, down); trigger_graph(); } else { crm_trace("Node %s is %salive, was expected to %s (op %d)", node->uname, (alive? "" : "not "), task, down->id); } } else if (appeared == FALSE) { crm_notice("Stonith/shutdown of %s not matched", node->uname); if (!is_remote) { crm_update_peer_join(__FUNCTION__, node, crm_join_none); check_join_state(fsa_state, __FUNCTION__); } abort_transition(INFINITY, tg_restart, "Node failure", NULL); fail_incompletable_actions(transition_graph, node->uuid); } else { crm_trace("Node %s came up, was not expected to be down", node->uname); } if (is_remote) { /* A pacemaker_remote node won't have its cluster status updated * in the CIB by membership-layer callbacks, so do it here. */ flags |= node_update_cluster; /* Trigger resource placement on newly integrated nodes */ if (appeared) { abort_transition(INFINITY, tg_restart, "pacemaker_remote node integrated", NULL); } } /* Update the CIB node state */ update = do_update_node_cib(node, flags, NULL, __FUNCTION__); fsa_cib_anon_update(XML_CIB_TAG_STATUS, update, cib_scope_local | cib_quorum_override | cib_can_create); free_xml(update); } trigger_fsa(fsa_source); } void crmd_cib_connection_destroy(gpointer user_data) { CRM_CHECK(user_data == fsa_cib_conn,;); crm_trace("Invoked"); trigger_fsa(fsa_source); fsa_cib_conn->state = cib_disconnected; if (is_set(fsa_input_register, R_CIB_CONNECTED) == FALSE) { crm_info("Connection to the CIB terminated..."); return; } /* eventually this will trigger a reconnect, not a shutdown */ crm_err("Connection to the CIB terminated..."); register_fsa_input(C_FSA_INTERNAL, I_ERROR, NULL); clear_bit(fsa_input_register, R_CIB_CONNECTED); return; } gboolean crm_fsa_trigger(gpointer user_data) { crm_trace("Invoked (queue len: %d)", g_list_length(fsa_message_queue)); s_crmd_fsa(C_FSA_INTERNAL); crm_trace("Exited (queue len: %d)", g_list_length(fsa_message_queue)); return TRUE; } diff --git a/crmd/cib.c b/crmd/cib.c index 0c3f7478ce..40fed4a987 100644 --- a/crmd/cib.c +++ b/crmd/cib.c @@ -1,278 +1,277 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include /* for access */ #include /* for calls to open */ #include /* for calls to open */ #include /* for calls to open */ #include /* for getpwuid */ #include /* for initgroups */ #include /* for getrlimit */ #include /* for getrlimit */ #include #include #include #include #include #include #include struct crm_subsystem_s *cib_subsystem = NULL; int cib_retries = 0; static void do_cib_updated(const char *event, xmlNode * msg) { int rc = -1; int format= 1; xmlNode *patchset = get_message_xml(msg, F_CIB_UPDATE_RESULT); xmlNode *change = NULL; xmlXPathObject *xpathObj = NULL; CRM_CHECK(msg != NULL, return); crm_element_value_int(msg, F_CIB_RC, &rc); if (rc < pcmk_ok) { crm_trace("Filter rc=%d (%s)", rc, pcmk_strerror(rc)); return; } crm_element_value_int(patchset, "format", &format); if (format == 1) { if ((xpathObj = xpath_search( msg, "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_CIB_TAG_CRMCONFIG " | " \ "//" F_CIB_UPDATE_RESULT "//" XML_TAG_DIFF_ADDED "//" XML_CIB_TAG_ALERTS )) != NULL) { freeXpathObject(xpathObj); mainloop_set_trigger(config_read); } } else if (format == 2) { for (change = __xml_first_child(patchset); change != NULL; change = __xml_next(change)) { const char *xpath = crm_element_value(change, XML_DIFF_PATH); if (xpath == NULL) { continue; } /* modifying properties */ if (!strstr(xpath, "/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_CRMCONFIG "/") && !strstr(xpath, "/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION "/" XML_CIB_TAG_ALERTS)) { xmlNode *section = NULL; const char *name = NULL; /* adding notifications section */ if ((strcmp(xpath, "/" XML_TAG_CIB "/" XML_CIB_TAG_CONFIGURATION) != 0) || ((section = __xml_first_child(change)) == NULL) || ((name = crm_element_name(section)) == NULL) || (strcmp(name, XML_CIB_TAG_ALERTS) != 0)) { continue; } } mainloop_set_trigger(config_read); break; } } else { crm_warn("Unknown patch format: %d", format); } } static void revision_check_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { int cmp = -1; xmlNode *generation = NULL; const char *revision = NULL; if (rc != pcmk_ok) { fsa_data_t *msg_data = NULL; register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); return; } generation = output; CRM_CHECK(safe_str_eq(crm_element_name(generation), XML_TAG_CIB), crm_log_xml_err(output, __FUNCTION__); return); crm_trace("Checking our feature revision is allowed: %s", CIB_FEATURE_SET); revision = crm_element_value(generation, XML_ATTR_CRM_VERSION); cmp = compare_version(revision, CRM_FEATURE_SET); if (cmp > 0) { - crm_err("This build (%s) does not support the current resource configuration", PACEMAKER_VERSION); - crm_err("We can only support up to CRM feature set %s (current=%s)", - CRM_FEATURE_SET, revision); - crm_err("Shutting down the CRM"); + crm_err("Shutting down because the current configuration is not supported by this version " + CRM_XS " build=%s supported=%s current=%s", + PACEMAKER_VERSION, CRM_FEATURE_SET, revision); /* go into a stall state */ register_fsa_error_adv(C_FSA_INTERNAL, I_SHUTDOWN, NULL, NULL, __FUNCTION__); return; } } static void do_cib_replaced(const char *event, xmlNode * msg) { crm_debug("Updating the CIB after a replace: DC=%s", AM_I_DC ? "true" : "false"); if (AM_I_DC == FALSE) { return; } else if (fsa_state == S_FINALIZE_JOIN && is_set(fsa_input_register, R_CIB_ASKED)) { /* no need to restart the join - we asked for this replace op */ return; } /* start the join process again so we get everyone's LRM status */ populate_cib_nodes(node_update_quick|node_update_all, __FUNCTION__); register_fsa_input(C_FSA_INTERNAL, I_ELECTION, NULL); } /* A_CIB_STOP, A_CIB_START, A_CIB_RESTART, */ void do_cib_control(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { struct crm_subsystem_s *this_subsys = cib_subsystem; long long stop_actions = A_CIB_STOP; long long start_actions = A_CIB_START; if (action & stop_actions) { if (fsa_cib_conn->state != cib_disconnected && last_resource_update != 0) { crm_info("Waiting for resource update %d to complete", last_resource_update); crmd_fsa_stall(FALSE); return; } crm_info("Disconnecting CIB"); clear_bit(fsa_input_register, R_CIB_CONNECTED); CRM_ASSERT(fsa_cib_conn != NULL); fsa_cib_conn->cmds->del_notify_callback(fsa_cib_conn, T_CIB_DIFF_NOTIFY, do_cib_updated); if (fsa_cib_conn->state != cib_disconnected) { fsa_cib_conn->cmds->set_slave(fsa_cib_conn, cib_scope_local); fsa_cib_conn->cmds->signoff(fsa_cib_conn); } } if (action & start_actions) { int rc = pcmk_ok; CRM_ASSERT(fsa_cib_conn != NULL); if (cur_state == S_STOPPING) { crm_err("Ignoring request to start %s after shutdown", this_subsys->name); return; } rc = fsa_cib_conn->cmds->signon(fsa_cib_conn, CRM_SYSTEM_CRMD, cib_command_nonblocking); if (rc != pcmk_ok) { /* a short wait that usually avoids stalling the FSA */ sleep(1); rc = fsa_cib_conn->cmds->signon(fsa_cib_conn, CRM_SYSTEM_CRMD, cib_command_nonblocking); } if (rc != pcmk_ok) { crm_info("Could not connect to the CIB service: %s", pcmk_strerror(rc)); } else if (pcmk_ok != fsa_cib_conn->cmds->set_connection_dnotify(fsa_cib_conn, crmd_cib_connection_destroy)) { crm_err("Could not set dnotify callback"); } else if (pcmk_ok != fsa_cib_conn->cmds->add_notify_callback(fsa_cib_conn, T_CIB_REPLACE_NOTIFY, do_cib_replaced)) { crm_err("Could not set CIB notification callback (replace)"); } else if (pcmk_ok != fsa_cib_conn->cmds->add_notify_callback(fsa_cib_conn, T_CIB_DIFF_NOTIFY, do_cib_updated)) { crm_err("Could not set CIB notification callback (update)"); } else { set_bit(fsa_input_register, R_CIB_CONNECTED); } if (is_set(fsa_input_register, R_CIB_CONNECTED) == FALSE) { cib_retries++; crm_warn("Couldn't complete CIB registration %d" " times... pause and retry", cib_retries); if (cib_retries < 30) { crm_timer_start(wait_timer); crmd_fsa_stall(FALSE); } else { crm_err("Could not complete CIB" " registration %d times..." " hard error", cib_retries); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } } else { int call_id = 0; crm_info("CIB connection established"); call_id = fsa_cib_conn->cmds->query(fsa_cib_conn, NULL, NULL, cib_scope_local); fsa_register_cib_callback(call_id, FALSE, NULL, revision_check_callback); cib_retries = 0; } } } /*! * \internal * \brief Get CIB call options to use local scope if master unavailable * * \return CIB call options */ int crmd_cib_smart_opt() { int call_opt = cib_quorum_override; if (fsa_state == S_ELECTION || fsa_state == S_PENDING) { crm_info("Sending update to local CIB in state: %s", fsa_state2string(fsa_state)); call_opt |= cib_scope_local; } return call_opt; } diff --git a/crmd/control.c b/crmd/control.c index 3fb6472ecc..3b20811511 100644 --- a/crmd/control.c +++ b/crmd/control.c @@ -1,1143 +1,1146 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include qb_ipcs_service_t *ipcs = NULL; extern gboolean crm_connect_corosync(crm_cluster_t * cluster); extern void crmd_ha_connection_destroy(gpointer user_data); void crm_shutdown(int nsig); gboolean crm_read_options(gpointer user_data); gboolean fsa_has_quorum = FALSE; crm_trigger_t *fsa_source = NULL; crm_trigger_t *config_read = NULL; bool no_quorum_suicide_escalation = FALSE; static gboolean election_timeout_popped(gpointer data) { /* Not everyone voted */ crm_info("Election failed: Declaring ourselves the winner"); register_fsa_input(C_TIMER_POPPED, I_ELECTION_DC, NULL); return FALSE; } /* A_HA_CONNECT */ void do_ha_control(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { gboolean registered = FALSE; static crm_cluster_t *cluster = NULL; if (cluster == NULL) { cluster = calloc(1, sizeof(crm_cluster_t)); } if (action & A_HA_DISCONNECT) { crm_cluster_disconnect(cluster); crm_info("Disconnected from the cluster"); set_bit(fsa_input_register, R_HA_DISCONNECTED); } if (action & A_HA_CONNECT) { crm_set_status_callback(&peer_update_callback); crm_set_autoreap(FALSE); if (is_openais_cluster()) { #if SUPPORT_COROSYNC registered = crm_connect_corosync(cluster); #endif } else if (is_heartbeat_cluster()) { #if SUPPORT_HEARTBEAT cluster->destroy = crmd_ha_connection_destroy; cluster->hb_dispatch = crmd_ha_msg_callback; registered = crm_cluster_connect(cluster); fsa_cluster_conn = cluster->hb_conn; crm_trace("Be informed of Node Status changes"); if (registered && fsa_cluster_conn->llc_ops->set_nstatus_callback(fsa_cluster_conn, crmd_ha_status_callback, fsa_cluster_conn) != HA_OK) { crm_err("Cannot set nstatus callback: %s", fsa_cluster_conn->llc_ops->errmsg(fsa_cluster_conn)); registered = FALSE; } crm_trace("Be informed of CRM Client Status changes"); if (registered && fsa_cluster_conn->llc_ops->set_cstatus_callback(fsa_cluster_conn, crmd_client_status_callback, fsa_cluster_conn) != HA_OK) { crm_err("Cannot set cstatus callback: %s", fsa_cluster_conn->llc_ops->errmsg(fsa_cluster_conn)); registered = FALSE; } if (registered) { crm_trace("Requesting an initial dump of CRMD client_status"); fsa_cluster_conn->llc_ops->client_status(fsa_cluster_conn, NULL, CRM_SYSTEM_CRMD, -1); } #endif } fsa_election = election_init(NULL, cluster->uname, 60000/*60s*/, election_timeout_popped); fsa_our_uname = cluster->uname; fsa_our_uuid = cluster->uuid; if(cluster->uuid == NULL) { crm_err("Could not obtain local uuid"); registered = FALSE; } if (registered == FALSE) { set_bit(fsa_input_register, R_HA_DISCONNECTED); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); return; } populate_cib_nodes(node_update_none, __FUNCTION__); clear_bit(fsa_input_register, R_HA_DISCONNECTED); crm_info("Connected to the cluster"); } if (action & ~(A_HA_CONNECT | A_HA_DISCONNECT)) { crm_err("Unexpected action %s in %s", fsa_action2string(action), __FUNCTION__); } } static bool need_spawn_pengine_from_crmd(void) { static int result = -1; if (result != -1) return result; if (!is_heartbeat_cluster()) { result = 0; return result; } /* NULL, or "strange" value: rather spawn from here. */ result = TRUE; crm_str_to_boolean(daemon_option("crmd_spawns_pengine"), &result); return result; } /* A_SHUTDOWN */ void do_shutdown(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { /* just in case */ set_bit(fsa_input_register, R_SHUTDOWN); if (need_spawn_pengine_from_crmd()) { if (is_set(fsa_input_register, pe_subsystem->flag_connected)) { crm_info("Terminating the %s", pe_subsystem->name); if (stop_subsystem(pe_subsystem, TRUE) == FALSE) { /* its gone... */ crm_err("Faking %s exit", pe_subsystem->name); clear_bit(fsa_input_register, pe_subsystem->flag_connected); } else { crm_info("Waiting for subsystems to exit"); crmd_fsa_stall(FALSE); } } crm_info("All subsystems stopped, continuing"); } if (stonith_api) { /* Prevent it from coming up again */ clear_bit(fsa_input_register, R_ST_REQUIRED); crm_info("Disconnecting STONITH..."); stonith_api->cmds->disconnect(stonith_api); } } /* A_SHUTDOWN_REQ */ void do_shutdown_req(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { xmlNode *msg = NULL; crm_info("Sending shutdown request to %s", crm_str(fsa_our_dc)); msg = create_request(CRM_OP_SHUTDOWN_REQ, NULL, NULL, CRM_SYSTEM_CRMD, CRM_SYSTEM_CRMD, NULL); /* set_bit(fsa_input_register, R_STAYDOWN); */ if (send_cluster_message(NULL, crm_msg_crmd, msg, TRUE) == FALSE) { register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } free_xml(msg); } extern crm_ipc_t *attrd_ipc; extern char *max_generation_from; extern xmlNode *max_generation_xml; extern GHashTable *resource_history; extern GHashTable *voted; extern GHashTable *metadata_hash; extern char *te_client_id; void log_connected_client(gpointer key, gpointer value, gpointer user_data); void log_connected_client(gpointer key, gpointer value, gpointer user_data) { crm_client_t *client = value; crm_err("%s is still connected at exit", crm_client_name(client)); } int crmd_fast_exit(int rc) { if (is_set(fsa_input_register, R_STAYDOWN)) { - crm_warn("Inhibiting respawn: %d -> %d", rc, 100); - rc = 100; + crm_warn("Inhibiting respawn "CRM_XS" remapping exit code %d to %d", + rc, DAEMON_RESPAWN_STOP); + rc = DAEMON_RESPAWN_STOP; } if (rc == pcmk_ok && is_set(fsa_input_register, R_IN_RECOVERY)) { crm_err("Could not recover from internal error"); rc = pcmk_err_generic; } return crm_exit(rc); } int crmd_exit(int rc) { GListPtr gIter = NULL; GMainLoop *mloop = crmd_mainloop; static bool in_progress = FALSE; if(in_progress && rc == 0) { crm_debug("Exit is already in progress"); return rc; } else if(in_progress) { - crm_notice("Error during shutdown process, terminating now: %s (%d)", pcmk_strerror(rc), rc); + crm_notice("Error during shutdown process, terminating now with status %d: %s", + rc, pcmk_strerror(rc)); crm_write_blackbox(SIGTRAP, NULL); crmd_fast_exit(rc); } in_progress = TRUE; crm_trace("Preparing to exit: %d", rc); /* Suppress secondary errors resulting from us disconnecting everything */ set_bit(fsa_input_register, R_HA_DISCONNECTED); /* Close all IPC servers and clients to ensure any and all shared memory files are cleaned up */ if(ipcs) { crm_trace("Closing IPC server"); mainloop_del_ipc_server(ipcs); ipcs = NULL; } if (attrd_ipc) { crm_trace("Closing attrd connection"); crm_ipc_close(attrd_ipc); crm_ipc_destroy(attrd_ipc); attrd_ipc = NULL; } if (pe_subsystem && pe_subsystem->client && pe_subsystem->client->ipcs) { crm_trace("Disconnecting Policy Engine"); qb_ipcs_disconnect(pe_subsystem->client->ipcs); } if(stonith_api) { crm_trace("Disconnecting fencing API"); clear_bit(fsa_input_register, R_ST_REQUIRED); stonith_api->cmds->free(stonith_api); stonith_api = NULL; } if (rc == pcmk_ok && crmd_mainloop == NULL) { crm_debug("No mainloop detected"); rc = EPROTO; } /* On an error, just get out. * * Otherwise, make the effort to have mainloop exit gracefully so * that it (mostly) cleans up after itself and valgrind has less * to report on - allowing real errors stand out */ if(rc != pcmk_ok) { - crm_notice("Forcing immediate exit: %s (%d)", pcmk_strerror(rc), rc); + crm_notice("Forcing immediate exit with status %d: %s", + rc, pcmk_strerror(rc)); crm_write_blackbox(SIGTRAP, NULL); return crmd_fast_exit(rc); } /* Clean up as much memory as possible for valgrind */ for (gIter = fsa_message_queue; gIter != NULL; gIter = gIter->next) { fsa_data_t *fsa_data = gIter->data; crm_info("Dropping %s: [ state=%s cause=%s origin=%s ]", fsa_input2string(fsa_data->fsa_input), fsa_state2string(fsa_state), fsa_cause2string(fsa_data->fsa_cause), fsa_data->origin); delete_fsa_input(fsa_data); } clear_bit(fsa_input_register, R_MEMBERSHIP); g_list_free(fsa_message_queue); fsa_message_queue = NULL; free(pe_subsystem); pe_subsystem = NULL; free(te_subsystem); te_subsystem = NULL; free(cib_subsystem); cib_subsystem = NULL; if (metadata_hash) { crm_trace("Destroying reload cache with %d members", g_hash_table_size(metadata_hash)); g_hash_table_destroy(metadata_hash); metadata_hash = NULL; } election_fini(fsa_election); fsa_election = NULL; cib_delete(fsa_cib_conn); fsa_cib_conn = NULL; verify_stopped(fsa_state, LOG_WARNING); clear_bit(fsa_input_register, R_LRM_CONNECTED); lrm_state_destroy_all(); /* This basically will not work, since mainloop has a reference to it */ mainloop_destroy_trigger(fsa_source); fsa_source = NULL; mainloop_destroy_trigger(config_read); config_read = NULL; mainloop_destroy_trigger(stonith_reconnect); stonith_reconnect = NULL; mainloop_destroy_trigger(transition_trigger); transition_trigger = NULL; crm_client_cleanup(); crm_peer_destroy(); crm_timer_stop(transition_timer); crm_timer_stop(integration_timer); crm_timer_stop(finalization_timer); crm_timer_stop(election_trigger); election_timeout_stop(fsa_election); crm_timer_stop(shutdown_escalation_timer); crm_timer_stop(wait_timer); crm_timer_stop(recheck_timer); free(transition_timer); transition_timer = NULL; free(integration_timer); integration_timer = NULL; free(finalization_timer); finalization_timer = NULL; free(election_trigger); election_trigger = NULL; election_fini(fsa_election); free(shutdown_escalation_timer); shutdown_escalation_timer = NULL; free(wait_timer); wait_timer = NULL; free(recheck_timer); recheck_timer = NULL; free(fsa_our_dc_version); fsa_our_dc_version = NULL; free(fsa_our_uname); fsa_our_uname = NULL; free(fsa_our_uuid); fsa_our_uuid = NULL; free(fsa_our_dc); fsa_our_dc = NULL; free(fsa_cluster_name); fsa_cluster_name = NULL; free(te_uuid); te_uuid = NULL; free(te_client_id); te_client_id = NULL; free(fsa_pe_ref); fsa_pe_ref = NULL; free(failed_stop_offset); failed_stop_offset = NULL; free(failed_start_offset); failed_start_offset = NULL; free(max_generation_from); max_generation_from = NULL; free_xml(max_generation_xml); max_generation_xml = NULL; mainloop_destroy_signal(SIGPIPE); mainloop_destroy_signal(SIGUSR1); mainloop_destroy_signal(SIGTERM); mainloop_destroy_signal(SIGTRAP); mainloop_destroy_signal(SIGCHLD); if (mloop) { int lpc = 0; GMainContext *ctx = g_main_loop_get_context(crmd_mainloop); /* Don't re-enter this block */ crmd_mainloop = NULL; crm_trace("Draining mainloop %d %d", g_main_loop_is_running(mloop), g_main_context_pending(ctx)); while(g_main_context_pending(ctx) && lpc < 10) { lpc++; crm_trace("Iteration %d", lpc); g_main_context_dispatch(ctx); } crm_trace("Closing mainloop %d %d", g_main_loop_is_running(mloop), g_main_context_pending(ctx)); g_main_loop_quit(mloop); #if SUPPORT_HEARTBEAT /* Do this only after g_main_loop_quit(). * * This interface was broken (incomplete) since it was introduced. * ->delete() does cleanup and free most of it, but it does not * actually remove and destroy the corresponding GSource, so the next * prepare/check iteratioin would find a corrupt (because partially * freed) GSource, and segfault. * * Apparently one was supposed to store the GSource as returned by * G_main_add_ll_cluster(), and g_source_destroy() that "by hand". * * But no-one ever did this, not even in the old hb code when this was * introduced. * * Note that fsa_cluster_conn was set as an "alias" to cluster->hb_conn * in do_ha_control() right after crm_cluster_connect(), and only * happens to still point at that object, because do_ha_control() does * not reset it to NULL after crm_cluster_disconnect() above does * reset cluster->hb_conn to NULL. * Not sure if that's something to cleanup, too. * * I'll try to fix this up in heartbeat proper, so ->delete * will actually remove, and destroy, and unref, and free this thing. * Doing so after g_main_loop_quit() is valid with both old, * and eventually fixed heartbeat. * * If we introduce the "by hand" destroy/remove/unref, * this may break again once heartbeat is fixed :-( * * -- Lars Ellenberg */ if (fsa_cluster_conn) { crm_trace("Deleting heartbeat api object"); fsa_cluster_conn->llc_ops->delete(fsa_cluster_conn); fsa_cluster_conn = NULL; } #endif /* Won't do anything yet, since we're inside it now */ g_main_loop_unref(mloop); crm_trace("Done %d", rc); } /* Graceful */ return rc; } /* A_EXIT_0, A_EXIT_1 */ void do_exit(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { int exit_code = pcmk_ok; int log_level = LOG_INFO; const char *exit_type = "gracefully"; if (action & A_EXIT_1) { /* exit_code = pcmk_err_generic; */ log_level = LOG_ERR; exit_type = "forcefully"; exit_code = pcmk_err_generic; } verify_stopped(cur_state, LOG_ERR); do_crm_log(log_level, "Performing %s - %s exiting the CRMd", fsa_action2string(action), exit_type); crm_info("[%s] stopped (%d)", crm_system_name, exit_code); crmd_exit(exit_code); } static void sigpipe_ignore(int nsig) { return; } /* A_STARTUP */ void do_startup(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { int was_error = 0; crm_debug("Registering Signal Handlers"); mainloop_add_signal(SIGTERM, crm_shutdown); mainloop_add_signal(SIGPIPE, sigpipe_ignore); fsa_source = mainloop_add_trigger(G_PRIORITY_HIGH, crm_fsa_trigger, NULL); config_read = mainloop_add_trigger(G_PRIORITY_HIGH, crm_read_options, NULL); transition_trigger = mainloop_add_trigger(G_PRIORITY_LOW, te_graph_trigger, NULL); crm_debug("Creating CIB and LRM objects"); fsa_cib_conn = cib_new(); lrm_state_init_local(); /* set up the timers */ transition_timer = calloc(1, sizeof(fsa_timer_t)); integration_timer = calloc(1, sizeof(fsa_timer_t)); finalization_timer = calloc(1, sizeof(fsa_timer_t)); election_trigger = calloc(1, sizeof(fsa_timer_t)); shutdown_escalation_timer = calloc(1, sizeof(fsa_timer_t)); wait_timer = calloc(1, sizeof(fsa_timer_t)); recheck_timer = calloc(1, sizeof(fsa_timer_t)); if (election_trigger != NULL) { election_trigger->source_id = 0; election_trigger->period_ms = -1; election_trigger->fsa_input = I_DC_TIMEOUT; election_trigger->callback = crm_timer_popped; election_trigger->repeat = FALSE; } else { was_error = TRUE; } if (transition_timer != NULL) { transition_timer->source_id = 0; transition_timer->period_ms = -1; transition_timer->fsa_input = I_PE_CALC; transition_timer->callback = crm_timer_popped; transition_timer->repeat = FALSE; } else { was_error = TRUE; } if (integration_timer != NULL) { integration_timer->source_id = 0; integration_timer->period_ms = -1; integration_timer->fsa_input = I_INTEGRATED; integration_timer->callback = crm_timer_popped; integration_timer->repeat = FALSE; } else { was_error = TRUE; } if (finalization_timer != NULL) { finalization_timer->source_id = 0; finalization_timer->period_ms = -1; finalization_timer->fsa_input = I_FINALIZED; finalization_timer->callback = crm_timer_popped; finalization_timer->repeat = FALSE; /* for possible enabling... a bug in the join protocol left * a slave in S_PENDING while we think its in S_NOT_DC * * raising I_FINALIZED put us into a transition loop which is * never resolved. * in this loop we continually send probes which the node * NACK's because its in S_PENDING * * if we have nodes where heartbeat is active but the * CRM is not... then this will be handled in the * integration phase */ finalization_timer->fsa_input = I_ELECTION; } else { was_error = TRUE; } if (shutdown_escalation_timer != NULL) { shutdown_escalation_timer->source_id = 0; shutdown_escalation_timer->period_ms = -1; shutdown_escalation_timer->fsa_input = I_STOP; shutdown_escalation_timer->callback = crm_timer_popped; shutdown_escalation_timer->repeat = FALSE; } else { was_error = TRUE; } if (wait_timer != NULL) { wait_timer->source_id = 0; wait_timer->period_ms = 2000; wait_timer->fsa_input = I_NULL; wait_timer->callback = crm_timer_popped; wait_timer->repeat = FALSE; } else { was_error = TRUE; } if (recheck_timer != NULL) { recheck_timer->source_id = 0; recheck_timer->period_ms = -1; recheck_timer->fsa_input = I_PE_CALC; recheck_timer->callback = crm_timer_popped; recheck_timer->repeat = FALSE; } else { was_error = TRUE; } /* set up the sub systems */ cib_subsystem = calloc(1, sizeof(struct crm_subsystem_s)); te_subsystem = calloc(1, sizeof(struct crm_subsystem_s)); pe_subsystem = calloc(1, sizeof(struct crm_subsystem_s)); if (cib_subsystem != NULL) { cib_subsystem->pid = -1; cib_subsystem->name = CRM_SYSTEM_CIB; cib_subsystem->flag_connected = R_CIB_CONNECTED; cib_subsystem->flag_required = R_CIB_REQUIRED; } else { was_error = TRUE; } if (te_subsystem != NULL) { te_subsystem->pid = -1; te_subsystem->name = CRM_SYSTEM_TENGINE; te_subsystem->flag_connected = R_TE_CONNECTED; te_subsystem->flag_required = R_TE_REQUIRED; } else { was_error = TRUE; } if (pe_subsystem != NULL) { pe_subsystem->pid = -1; pe_subsystem->path = CRM_DAEMON_DIR; pe_subsystem->name = CRM_SYSTEM_PENGINE; pe_subsystem->command = CRM_DAEMON_DIR "/" CRM_SYSTEM_PENGINE; pe_subsystem->args = NULL; pe_subsystem->flag_connected = R_PE_CONNECTED; pe_subsystem->flag_required = R_PE_REQUIRED; } else { was_error = TRUE; } if (was_error == FALSE && need_spawn_pengine_from_crmd()) { if (start_subsystem(pe_subsystem) == FALSE) { was_error = TRUE; } } if (was_error) { register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } } static int32_t crmd_ipc_accept(qb_ipcs_connection_t * c, uid_t uid, gid_t gid) { crm_trace("Connection %p", c); if (crm_client_new(c, uid, gid) == NULL) { return -EIO; } return 0; } static void crmd_ipc_created(qb_ipcs_connection_t * c) { crm_trace("Connection %p", c); } static int32_t crmd_ipc_dispatch(qb_ipcs_connection_t * c, void *data, size_t size) { uint32_t id = 0; uint32_t flags = 0; crm_client_t *client = crm_client_get(c); xmlNode *msg = crm_ipcs_recv(client, data, size, &id, &flags); crm_trace("Invoked: %s", crm_client_name(client)); crm_ipcs_send_ack(client, id, flags, "ack", __FUNCTION__, __LINE__); if (msg == NULL) { return 0; } #if ENABLE_ACL CRM_ASSERT(client->user != NULL); crm_acl_get_set_user(msg, F_CRM_USER, client->user); #endif crm_trace("Processing msg from %s", crm_client_name(client)); crm_log_xml_trace(msg, "CRMd[inbound]"); crm_xml_add(msg, F_CRM_SYS_FROM, client->id); if (crmd_authorize_message(msg, client, NULL)) { route_message(C_IPC_MESSAGE, msg); } trigger_fsa(fsa_source); free_xml(msg); return 0; } static int32_t crmd_ipc_closed(qb_ipcs_connection_t * c) { crm_client_t *client = crm_client_get(c); struct crm_subsystem_s *the_subsystem = NULL; if (client == NULL) { return 0; } crm_trace("Connection %p", c); if (client->userdata == NULL) { crm_trace("Client hadn't registered with us yet"); } else if (strcasecmp(CRM_SYSTEM_PENGINE, client->userdata) == 0) { the_subsystem = pe_subsystem; } else if (strcasecmp(CRM_SYSTEM_TENGINE, client->userdata) == 0) { the_subsystem = te_subsystem; } else if (strcasecmp(CRM_SYSTEM_CIB, client->userdata) == 0) { the_subsystem = cib_subsystem; } if (the_subsystem != NULL) { the_subsystem->source = NULL; the_subsystem->client = NULL; crm_info("Received HUP from %s:[%d]", the_subsystem->name, the_subsystem->pid); } else { /* else that was a transient client */ crm_trace("Received HUP from transient client"); } crm_trace("Disconnecting client %s (%p)", crm_client_name(client), client); free(client->userdata); crm_client_destroy(client); trigger_fsa(fsa_source); return 0; } static void crmd_ipc_destroy(qb_ipcs_connection_t * c) { crm_trace("Connection %p", c); crmd_ipc_closed(c); } /* A_STOP */ void do_stop(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { crm_trace("Closing IPC server"); mainloop_del_ipc_server(ipcs); ipcs = NULL; register_fsa_input(C_FSA_INTERNAL, I_TERMINATE, NULL); } /* A_STARTED */ void do_started(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { static struct qb_ipcs_service_handlers crmd_callbacks = { .connection_accept = crmd_ipc_accept, .connection_created = crmd_ipc_created, .msg_process = crmd_ipc_dispatch, .connection_closed = crmd_ipc_closed, .connection_destroyed = crmd_ipc_destroy }; if (cur_state != S_STARTING) { crm_err("Start cancelled... %s", fsa_state2string(cur_state)); return; } else if (is_set(fsa_input_register, R_MEMBERSHIP) == FALSE) { crm_info("Delaying start, no membership data (%.16llx)", R_MEMBERSHIP); crmd_fsa_stall(TRUE); return; } else if (is_set(fsa_input_register, R_LRM_CONNECTED) == FALSE) { crm_info("Delaying start, LRM not connected (%.16llx)", R_LRM_CONNECTED); crmd_fsa_stall(TRUE); return; } else if (is_set(fsa_input_register, R_CIB_CONNECTED) == FALSE) { crm_info("Delaying start, CIB not connected (%.16llx)", R_CIB_CONNECTED); crmd_fsa_stall(TRUE); return; } else if (is_set(fsa_input_register, R_READ_CONFIG) == FALSE) { crm_info("Delaying start, Config not read (%.16llx)", R_READ_CONFIG); crmd_fsa_stall(TRUE); return; } else if (is_set(fsa_input_register, R_PEER_DATA) == FALSE) { /* try reading from HA */ crm_info("Delaying start, No peer data (%.16llx)", R_PEER_DATA); #if SUPPORT_HEARTBEAT if (is_heartbeat_cluster()) { HA_Message *msg = NULL; crm_trace("Looking for a HA message"); msg = fsa_cluster_conn->llc_ops->readmsg(fsa_cluster_conn, 0); if (msg != NULL) { crm_trace("There was a HA message"); ha_msg_del(msg); } } #endif crmd_fsa_stall(TRUE); return; } crm_debug("Init server comms"); ipcs = crmd_ipc_server_init(&crmd_callbacks); if (ipcs == NULL) { crm_err("Failed to create IPC server: shutting down and inhibiting respawn"); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } if (stonith_reconnect == NULL) { int dummy; stonith_reconnect = mainloop_add_trigger(G_PRIORITY_LOW, te_connect_stonith, &dummy); } set_bit(fsa_input_register, R_ST_REQUIRED); mainloop_set_trigger(stonith_reconnect); crm_notice("The local CRM is operational"); clear_bit(fsa_input_register, R_STARTING); register_fsa_input(msg_data->fsa_cause, I_PENDING, NULL); } /* A_RECOVER */ void do_recover(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { set_bit(fsa_input_register, R_IN_RECOVERY); crm_warn("Fast-tracking shutdown in response to errors"); register_fsa_input(C_FSA_INTERNAL, I_TERMINATE, NULL); } /* *INDENT-OFF* */ pe_cluster_option crmd_opts[] = { /* name, old-name, validate, values, default, short description, long description */ { "dc-version", NULL, "string", NULL, "none", NULL, "Version of Pacemaker on the cluster's DC.", "Includes the hash which identifies the exact changeset it was built from. Used for diagnostic purposes." }, { "cluster-infrastructure", NULL, "string", NULL, "heartbeat", NULL, "The messaging stack on which Pacemaker is currently running.", "Used for informational and diagnostic purposes." }, { XML_CONFIG_ATTR_DC_DEADTIME, "dc_deadtime", "time", NULL, "20s", &check_time, "How long to wait for a response from other nodes during startup.", "The \"correct\" value will depend on the speed/load of your network and the type of switches used." }, { XML_CONFIG_ATTR_RECHECK, "cluster_recheck_interval", "time", "Zero disables polling. Positive values are an interval in seconds (unless other SI units are specified. eg. 5min)", "15min", &check_timer, "Polling interval for time based changes to options, resource parameters and constraints.", "The Cluster is primarily event driven, however the configuration can have elements that change based on time." " To ensure these changes take effect, we can optionally poll the cluster's status for changes." }, #ifdef RHEL7_COMPAT /* These options were superseded by the alerts feature and now are just an * alternate interface to it. It was never released upstream, but was * released in RHEL 7, so we allow it to be enabled at compile-time by * defining RHEL7_COMPAT. */ { "notification-agent", NULL, "string", NULL, "/dev/null", &check_script, "Notification script or tool to be called after significant cluster events", "Full path to a script or binary that will be invoked when resources start/stop/fail, fencing occurs or nodes join/leave the cluster.\n" "Must exist on all nodes in the cluster." }, { "notification-recipient", NULL, "string", NULL, "", NULL, "Destination for notifications (Optional)", "Where should the supplied script send notifications to. Useful to avoid hard-coding this in the script." }, #endif { "load-threshold", NULL, "percentage", NULL, "80%", &check_utilization, "The maximum amount of system resources that should be used by nodes in the cluster", "The cluster will slow down its recovery process when the amount of system resources used" " (currently CPU) approaches this limit", }, { "node-action-limit", NULL, "integer", NULL, "0", &check_number, "The maximum number of jobs that can be scheduled per node. Defaults to 2x cores"}, { XML_CONFIG_ATTR_ELECTION_FAIL, "election_timeout", "time", NULL, "2min", &check_timer, "*** Advanced Use Only ***.", "If need to adjust this value, it probably indicates the presence of a bug." }, { XML_CONFIG_ATTR_FORCE_QUIT, "shutdown_escalation", "time", NULL, "20min", &check_timer, "*** Advanced Use Only ***.", "If need to adjust this value, it probably indicates the presence of a bug." }, { "crmd-integration-timeout", NULL, "time", NULL, "3min", &check_timer, "*** Advanced Use Only ***.", "If need to adjust this value, it probably indicates the presence of a bug." }, { "crmd-finalization-timeout", NULL, "time", NULL, "30min", &check_timer, "*** Advanced Use Only ***.", "If you need to adjust this value, it probably indicates the presence of a bug." }, { "crmd-transition-delay", NULL, "time", NULL, "0s", &check_timer, "*** Advanced Use Only ***\n" "Enabling this option will slow down cluster recovery under all conditions", "Delay cluster recovery for the configured interval to allow for additional/related events to occur.\n" "Useful if your configuration is sensitive to the order in which ping updates arrive." }, { "stonith-watchdog-timeout", NULL, "time", NULL, NULL, &check_sbd_timeout, "How long to wait before we can assume nodes are safely down", NULL }, { "no-quorum-policy", "no_quorum_policy", "enum", "stop, freeze, ignore, suicide", "stop", &check_quorum, NULL, NULL }, #if SUPPORT_PLUGIN { XML_ATTR_EXPECTED_VOTES, NULL, "integer", NULL, "2", &check_number, "The number of nodes expected to be in the cluster", "Used to calculate quorum in openais based clusters." }, #endif }; /* *INDENT-ON* */ void crmd_metadata(void) { config_metadata("CRM Daemon", "1.0", "CRM Daemon Options", "This is a fake resource that details the options that can be configured for the CRM Daemon.", crmd_opts, DIMOF(crmd_opts)); } static void verify_crmd_options(GHashTable * options) { verify_all_options(options, crmd_opts, DIMOF(crmd_opts)); } static const char * crmd_pref(GHashTable * options, const char *name) { return get_cluster_pref(options, crmd_opts, DIMOF(crmd_opts), name); } static void config_query_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { #ifdef RHEL7_COMPAT const char *script = NULL; #endif const char *value = NULL; GHashTable *config_hash = NULL; crm_time_t *now = crm_time_new(NULL); xmlNode *crmconfig = NULL; xmlNode *alerts = NULL; if (rc != pcmk_ok) { fsa_data_t *msg_data = NULL; crm_err("Local CIB query resulted in an error: %s", pcmk_strerror(rc)); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); if (rc == -EACCES || rc == -pcmk_err_schema_validation) { crm_err("The cluster is mis-configured - shutting down and staying down"); set_bit(fsa_input_register, R_STAYDOWN); } goto bail; } crmconfig = output; if ((crmconfig) && (crm_element_name(crmconfig)) && (strcmp(crm_element_name(crmconfig), XML_CIB_TAG_CRMCONFIG) != 0)) { crmconfig = first_named_child(crmconfig, XML_CIB_TAG_CRMCONFIG); } if (!crmconfig) { fsa_data_t *msg_data = NULL; crm_err("Local CIB query for " XML_CIB_TAG_CRMCONFIG " section failed"); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); goto bail; } crm_debug("Call %d : Parsing CIB options", call_id); config_hash = g_hash_table_new_full(crm_str_hash, g_str_equal, g_hash_destroy_str, g_hash_destroy_str); unpack_instance_attributes(output, output, XML_CIB_TAG_PROPSET, NULL, config_hash, CIB_OPTIONS_FIRST, FALSE, now); verify_crmd_options(config_hash); #ifdef RHEL7_COMPAT script = crmd_pref(config_hash, "notification-agent"); value = crmd_pref(config_hash, "notification-recipient"); crmd_enable_notifications(script, value); #endif value = crmd_pref(config_hash, XML_CONFIG_ATTR_DC_DEADTIME); election_trigger->period_ms = crm_get_msec(value); value = crmd_pref(config_hash, "node-action-limit"); /* Also checks migration-limit */ throttle_update_job_max(value); value = crmd_pref(config_hash, "load-threshold"); if(value) { throttle_load_target = strtof(value, NULL) / 100; } value = crmd_pref(config_hash, "no-quorum-policy"); if (safe_str_eq(value, "suicide") && pcmk_locate_sbd()) { no_quorum_suicide_escalation = TRUE; } value = crmd_pref(config_hash, XML_CONFIG_ATTR_FORCE_QUIT); shutdown_escalation_timer->period_ms = crm_get_msec(value); /* How long to declare an election over - even if not everyone voted */ crm_debug("Shutdown escalation occurs after: %dms", shutdown_escalation_timer->period_ms); value = crmd_pref(config_hash, XML_CONFIG_ATTR_ELECTION_FAIL); election_timeout_set_period(fsa_election, crm_get_msec(value)); value = crmd_pref(config_hash, XML_CONFIG_ATTR_RECHECK); recheck_timer->period_ms = crm_get_msec(value); crm_debug("Checking for expired actions every %dms", recheck_timer->period_ms); value = crmd_pref(config_hash, "crmd-transition-delay"); transition_timer->period_ms = crm_get_msec(value); value = crmd_pref(config_hash, "crmd-integration-timeout"); integration_timer->period_ms = crm_get_msec(value); value = crmd_pref(config_hash, "crmd-finalization-timeout"); finalization_timer->period_ms = crm_get_msec(value); #if SUPPORT_COROSYNC if (is_classic_ais_cluster()) { value = crmd_pref(config_hash, XML_ATTR_EXPECTED_VOTES); crm_debug("Sending expected-votes=%s to corosync", value); send_cluster_text(crm_class_quorum, value, TRUE, NULL, crm_msg_ais); } #endif free(fsa_cluster_name); fsa_cluster_name = NULL; value = g_hash_table_lookup(config_hash, "cluster-name"); if (value) { fsa_cluster_name = strdup(value); } alerts = output?first_named_child(output, XML_CIB_TAG_ALERTS):NULL; parse_notifications(alerts); set_bit(fsa_input_register, R_READ_CONFIG); crm_trace("Triggering FSA: %s", __FUNCTION__); mainloop_set_trigger(fsa_source); g_hash_table_destroy(config_hash); bail: crm_time_free(now); } gboolean crm_read_options(gpointer user_data) { int call_id = fsa_cib_conn->cmds->query(fsa_cib_conn, "//" XML_CIB_TAG_CRMCONFIG " | //" XML_CIB_TAG_ALERTS, NULL, cib_xpath | cib_scope_local); fsa_register_cib_callback(call_id, FALSE, NULL, config_query_callback); crm_trace("Querying the CIB... call %d", call_id); return TRUE; } /* A_READCONFIG */ void do_read_config(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { throttle_init(); mainloop_set_trigger(config_read); } void crm_shutdown(int nsig) { if (crmd_mainloop != NULL && g_main_is_running(crmd_mainloop)) { if (is_set(fsa_input_register, R_SHUTDOWN)) { crm_err("Escalating the shutdown"); register_fsa_input_before(C_SHUTDOWN, I_ERROR, NULL); } else { set_bit(fsa_input_register, R_SHUTDOWN); register_fsa_input(C_SHUTDOWN, I_SHUTDOWN, NULL); if (shutdown_escalation_timer->period_ms < 1) { const char *value = crmd_pref(NULL, XML_CONFIG_ATTR_FORCE_QUIT); int msec = crm_get_msec(value); crm_debug("Using default shutdown escalation: %dms", msec); shutdown_escalation_timer->period_ms = msec; } /* can't rely on this... */ crm_notice("Shutting down cluster resource manager " CRM_XS " limit=%dms", shutdown_escalation_timer->period_ms); crm_timer_start(shutdown_escalation_timer); } } else { crm_info("exit from shutdown"); crmd_exit(pcmk_ok); } } diff --git a/crmd/election.c b/crmd/election.c index a0b2c450db..1ff49653cf 100644 --- a/crmd/election.c +++ b/crmd/election.c @@ -1,264 +1,265 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #define STORM_INTERVAL 2 /* in seconds */ #define STORM_MULTIPLIER 5 /* multiplied by the number of nodes */ /* A_ELECTION_VOTE */ void do_election_vote(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { gboolean not_voting = FALSE; /* don't vote if we're in one of these states or wanting to shut down */ switch (cur_state) { case S_STARTING: case S_RECOVERY: case S_STOPPING: case S_TERMINATE: crm_warn("Not voting in election, we're in state %s", fsa_state2string(cur_state)); not_voting = TRUE; break; case S_ELECTION: case S_INTEGRATION: case S_RELEASE_DC: break; default: crm_err("Broken? Voting in state %s", fsa_state2string(cur_state)); break; } if (not_voting == FALSE) { if (is_set(fsa_input_register, R_STARTING)) { not_voting = TRUE; } } if (not_voting) { if (AM_I_DC) { register_fsa_input(C_FSA_INTERNAL, I_RELEASE_DC, NULL); } else { register_fsa_input(C_FSA_INTERNAL, I_PENDING, NULL); } return; } election_vote(fsa_election); return; } void do_election_check(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { if (fsa_state != S_ELECTION) { crm_debug("Ignore election check: we not in an election"); } else if(election_check(fsa_election)) { register_fsa_input(C_FSA_INTERNAL, I_ELECTION_DC, NULL); } return; } #define loss_dampen 2 /* in seconds */ /* A_ELECTION_COUNT */ void do_election_count_vote(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { enum election_result rc = 0; ha_msg_input_t *vote = fsa_typed_data(fsa_dt_ha_msg); if(crm_peer_cache == NULL) { if(is_not_set(fsa_input_register, R_SHUTDOWN)) { crm_err("Internal error, no peer cache"); } return; } rc = election_count_vote(fsa_election, vote->msg, cur_state != S_STARTING); switch(rc) { case election_start: election_reset(fsa_election); register_fsa_input(C_FSA_INTERNAL, I_ELECTION, NULL); break; case election_lost: update_dc(NULL); if (fsa_input_register & R_THE_DC) { register_fsa_input(C_FSA_INTERNAL, I_RELEASE_DC, NULL); fsa_cib_conn->cmds->set_slave(fsa_cib_conn, cib_scope_local); } else if (cur_state != S_STARTING) { register_fsa_input(C_FSA_INTERNAL, I_PENDING, NULL); } break; case election_in_progress: break; default: crm_err("Unhandled election result: %d", rc); } } /* A_ELECT_TIMER_START, A_ELECTION_TIMEOUT */ /* we won */ void do_election_timer_ctrl(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { } static void feature_update_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { if (rc != pcmk_ok) { fsa_data_t *msg_data = NULL; - crm_notice("Update failed: %s (%d)", pcmk_strerror(rc), rc); + crm_notice("Feature update failed: %s "CRM_XS" rc=%d", + pcmk_strerror(rc), rc); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } } /* A_DC_TAKEOVER */ void do_dc_takeover(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { int rc = pcmk_ok; xmlNode *cib = NULL; const char *cluster_type = name_for_cluster_type(get_cluster_type()); pid_t watchdog = pcmk_locate_sbd(); crm_info("Taking over DC status for this partition"); set_bit(fsa_input_register, R_THE_DC); execute_stonith_cleanup(); #if SUPPORT_COROSYNC if (is_classic_ais_cluster()) { send_cluster_text(crm_class_quorum, NULL, TRUE, NULL, crm_msg_ais); } #endif election_reset(fsa_election); set_bit(fsa_input_register, R_JOIN_OK); set_bit(fsa_input_register, R_INVOKE_PE); fsa_cib_conn->cmds->set_master(fsa_cib_conn, cib_scope_local); cib = create_xml_node(NULL, XML_TAG_CIB); crm_xml_add(cib, XML_ATTR_CRM_VERSION, CRM_FEATURE_SET); fsa_cib_update(XML_TAG_CIB, cib, cib_quorum_override, rc, NULL); fsa_register_cib_callback(rc, FALSE, NULL, feature_update_callback); update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL, XML_ATTR_HAVE_WATCHDOG, watchdog?"true":"false", FALSE, NULL, NULL); update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL, "dc-version", PACEMAKER_VERSION "-" BUILD_VERSION, FALSE, NULL, NULL); update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL, "cluster-infrastructure", cluster_type, FALSE, NULL, NULL); #if SUPPORT_COROSYNC # if !SUPPORT_PLUGIN if (fsa_cluster_name == NULL && is_corosync_cluster()) { char *cluster_name = corosync_cluster_name(); if (cluster_name) { update_attr_delegate(fsa_cib_conn, cib_none, XML_CIB_TAG_CRMCONFIG, NULL, NULL, NULL, NULL, "cluster-name", cluster_name, FALSE, NULL, NULL); } free(cluster_name); } # endif #endif mainloop_set_trigger(config_read); free_xml(cib); } /* A_DC_RELEASE */ void do_dc_release(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { if (action & A_DC_RELEASE) { crm_debug("Releasing the role of DC"); clear_bit(fsa_input_register, R_THE_DC); } else if (action & A_DC_RELEASED) { crm_info("DC role released"); #if 0 if (are there errors) { /* we can't stay up if not healthy */ /* or perhaps I_ERROR and go to S_RECOVER? */ result = I_SHUTDOWN; } #endif if (is_set(fsa_input_register, R_SHUTDOWN)) { xmlNode *update = NULL; crm_node_t *node = crm_get_peer(0, fsa_our_uname); crm_update_peer_expected(__FUNCTION__, node, CRMD_JOINSTATE_DOWN); update = do_update_node_cib(node, node_update_expected, NULL, __FUNCTION__); fsa_cib_anon_update(XML_CIB_TAG_STATUS, update, cib_scope_local | cib_quorum_override | cib_can_create); free_xml(update); } register_fsa_input(C_FSA_INTERNAL, I_RELEASE_SUCCESS, NULL); } else { - crm_err("Unknown action %s", fsa_action2string(action)); + crm_err("Unknown DC action %s", fsa_action2string(action)); } crm_trace("Am I still the DC? %s", AM_I_DC ? XML_BOOLEAN_YES : XML_BOOLEAN_NO); } diff --git a/crmd/fsa.c b/crmd/fsa.c index 1b0962fae4..c9319bcfc2 100644 --- a/crmd/fsa.c +++ b/crmd/fsa.c @@ -1,677 +1,677 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include char *fsa_our_dc = NULL; cib_t *fsa_cib_conn = NULL; char *fsa_our_dc_version = NULL; char *fsa_our_uuid = NULL; char *fsa_our_uname = NULL; char *fsa_cluster_name = NULL; #if SUPPORT_HEARTBEAT ll_cluster_t *fsa_cluster_conn; #endif election_t *fsa_election = NULL; fsa_timer_t *wait_timer = NULL; /* How long to wait before retrying to connect to the cib/lrmd/ccm */ fsa_timer_t *recheck_timer = NULL; /* Periodically re-run the PE to account for time based rules/preferences */ fsa_timer_t *election_trigger = NULL; /* How long to wait at startup, or after an election, for the DC to make contact */ fsa_timer_t *transition_timer = NULL; /* How long to delay the start of a new transition with the expectation something else might happen too */ fsa_timer_t *integration_timer = NULL; fsa_timer_t *finalization_timer = NULL; fsa_timer_t *shutdown_escalation_timer = NULL; /* How long to wait for the DC to stop all resources and give us the all-clear to shut down */ volatile gboolean do_fsa_stall = FALSE; volatile long long fsa_input_register = 0; volatile long long fsa_actions = A_NOTHING; volatile enum crmd_fsa_state fsa_state = S_STARTING; extern uint highest_born_on; extern uint num_join_invites; extern void initialize_join(gboolean before); #define DOT_PREFIX "actions:trace: " #define do_dot_log(fmt, args...) crm_trace( fmt, ##args) long long do_state_transition(long long actions, enum crmd_fsa_state cur_state, enum crmd_fsa_state next_state, fsa_data_t * msg_data); void dump_rsc_info(void); void dump_rsc_info_callback(const xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data); void ghash_print_node(gpointer key, gpointer value, gpointer user_data); void s_crmd_fsa_actions(fsa_data_t * fsa_data); void log_fsa_input(fsa_data_t * stored_msg); void init_dotfile(void); void init_dotfile(void) { do_dot_log(DOT_PREFIX "digraph \"g\" {"); do_dot_log(DOT_PREFIX " size = \"30,30\""); do_dot_log(DOT_PREFIX " graph ["); do_dot_log(DOT_PREFIX " fontsize = \"12\""); do_dot_log(DOT_PREFIX " fontname = \"Times-Roman\""); do_dot_log(DOT_PREFIX " fontcolor = \"black\""); do_dot_log(DOT_PREFIX " bb = \"0,0,398.922306,478.927856\""); do_dot_log(DOT_PREFIX " color = \"black\""); do_dot_log(DOT_PREFIX " ]"); do_dot_log(DOT_PREFIX " node ["); do_dot_log(DOT_PREFIX " fontsize = \"12\""); do_dot_log(DOT_PREFIX " fontname = \"Times-Roman\""); do_dot_log(DOT_PREFIX " fontcolor = \"black\""); do_dot_log(DOT_PREFIX " shape = \"ellipse\""); do_dot_log(DOT_PREFIX " color = \"black\""); do_dot_log(DOT_PREFIX " ]"); do_dot_log(DOT_PREFIX " edge ["); do_dot_log(DOT_PREFIX " fontsize = \"12\""); do_dot_log(DOT_PREFIX " fontname = \"Times-Roman\""); do_dot_log(DOT_PREFIX " fontcolor = \"black\""); do_dot_log(DOT_PREFIX " color = \"black\""); do_dot_log(DOT_PREFIX " ]"); do_dot_log(DOT_PREFIX "// special nodes"); do_dot_log(DOT_PREFIX " \"S_PENDING\" "); do_dot_log(DOT_PREFIX " ["); do_dot_log(DOT_PREFIX " color = \"blue\""); do_dot_log(DOT_PREFIX " fontcolor = \"blue\""); do_dot_log(DOT_PREFIX " ]"); do_dot_log(DOT_PREFIX " \"S_TERMINATE\" "); do_dot_log(DOT_PREFIX " ["); do_dot_log(DOT_PREFIX " color = \"red\""); do_dot_log(DOT_PREFIX " fontcolor = \"red\""); do_dot_log(DOT_PREFIX " ]"); do_dot_log(DOT_PREFIX "// DC only nodes"); do_dot_log(DOT_PREFIX " \"S_INTEGRATION\" [ fontcolor = \"green\" ]"); do_dot_log(DOT_PREFIX " \"S_POLICY_ENGINE\" [ fontcolor = \"green\" ]"); do_dot_log(DOT_PREFIX " \"S_TRANSITION_ENGINE\" [ fontcolor = \"green\" ]"); do_dot_log(DOT_PREFIX " \"S_RELEASE_DC\" [ fontcolor = \"green\" ]"); do_dot_log(DOT_PREFIX " \"S_IDLE\" [ fontcolor = \"green\" ]"); } static void do_fsa_action(fsa_data_t * fsa_data, long long an_action, void (*function) (long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input cur_input, fsa_data_t * msg_data)) { fsa_actions &= ~an_action; crm_trace(DOT_PREFIX "\t// %s", fsa_action2string(an_action)); function(an_action, fsa_data->fsa_cause, fsa_state, fsa_data->fsa_input, fsa_data); } static long long startup_actions = A_STARTUP | A_CIB_START | A_LRM_CONNECT | A_CCM_CONNECT | A_HA_CONNECT | A_READCONFIG | A_STARTED | A_CL_JOIN_QUERY; enum crmd_fsa_state s_crmd_fsa(enum crmd_fsa_cause cause) { fsa_data_t *fsa_data = NULL; long long register_copy = fsa_input_register; long long new_actions = A_NOTHING; enum crmd_fsa_state last_state; crm_trace("FSA invoked with Cause: %s\tState: %s", fsa_cause2string(cause), fsa_state2string(fsa_state)); fsa_dump_actions(fsa_actions, "Initial"); do_fsa_stall = FALSE; if (is_message() == FALSE && fsa_actions != A_NOTHING) { /* fake the first message so we can get into the loop */ fsa_data = calloc(1, sizeof(fsa_data_t)); fsa_data->fsa_input = I_NULL; fsa_data->fsa_cause = C_FSA_INTERNAL; fsa_data->origin = __FUNCTION__; fsa_data->data_type = fsa_dt_none; fsa_message_queue = g_list_append(fsa_message_queue, fsa_data); fsa_data = NULL; } while (is_message() && do_fsa_stall == FALSE) { crm_trace("Checking messages (%d remaining)", g_list_length(fsa_message_queue)); fsa_data = get_message(); if(fsa_data == NULL) { continue; } log_fsa_input(fsa_data); /* add any actions back to the queue */ fsa_actions |= fsa_data->actions; fsa_dump_actions(fsa_data->actions, "Restored actions"); /* get the next batch of actions */ new_actions = crmd_fsa_actions[fsa_data->fsa_input][fsa_state]; fsa_actions |= new_actions; fsa_dump_actions(new_actions, "New actions"); if (fsa_data->fsa_input != I_NULL && fsa_data->fsa_input != I_ROUTER) { crm_debug("Processing %s: [ state=%s cause=%s origin=%s ]", fsa_input2string(fsa_data->fsa_input), fsa_state2string(fsa_state), fsa_cause2string(fsa_data->fsa_cause), fsa_data->origin); } /* logging : *before* the state is changed */ if (is_set(fsa_actions, A_ERROR)) { do_fsa_action(fsa_data, A_ERROR, do_log); } if (is_set(fsa_actions, A_WARN)) { do_fsa_action(fsa_data, A_WARN, do_log); } if (is_set(fsa_actions, A_LOG)) { do_fsa_action(fsa_data, A_LOG, do_log); } /* update state variables */ last_state = fsa_state; fsa_state = crmd_fsa_state[fsa_data->fsa_input][fsa_state]; /* * Remove certain actions during shutdown */ if (fsa_state == S_STOPPING || ((fsa_input_register & R_SHUTDOWN) == R_SHUTDOWN)) { clear_bit(fsa_actions, startup_actions); } /* * Hook for change of state. * Allows actions to be added or removed when entering a state */ if (last_state != fsa_state) { fsa_actions = do_state_transition(fsa_actions, last_state, fsa_state, fsa_data); } else { do_dot_log(DOT_PREFIX "\t// FSA input: State=%s \tCause=%s" " \tInput=%s \tOrigin=%s() \tid=%d", fsa_state2string(fsa_state), fsa_cause2string(fsa_data->fsa_cause), fsa_input2string(fsa_data->fsa_input), fsa_data->origin, fsa_data->id); } /* start doing things... */ s_crmd_fsa_actions(fsa_data); delete_fsa_input(fsa_data); fsa_data = NULL; } if (g_list_length(fsa_message_queue) > 0 || fsa_actions != A_NOTHING || do_fsa_stall) { crm_debug("Exiting the FSA: queue=%d, fsa_actions=0x%llx, stalled=%s", g_list_length(fsa_message_queue), fsa_actions, do_fsa_stall ? "true" : "false"); } else { crm_trace("Exiting the FSA"); } /* cleanup inputs? */ if (register_copy != fsa_input_register) { long long same = register_copy & fsa_input_register; fsa_dump_inputs(LOG_DEBUG, "Added", fsa_input_register ^ same); fsa_dump_inputs(LOG_DEBUG, "Removed", register_copy ^ same); } fsa_dump_actions(fsa_actions, "Remaining"); fsa_dump_queue(LOG_DEBUG); return fsa_state; } void s_crmd_fsa_actions(fsa_data_t * fsa_data) { /* * Process actions in order of priority but do only one * action at a time to avoid complicating the ordering. */ CRM_CHECK(fsa_data != NULL, return); while (fsa_actions != A_NOTHING && do_fsa_stall == FALSE) { /* regular action processing in order of action priority * * Make sure all actions that connect to required systems * are performed first */ if (fsa_actions & A_ERROR) { do_fsa_action(fsa_data, A_ERROR, do_log); } else if (fsa_actions & A_WARN) { do_fsa_action(fsa_data, A_WARN, do_log); } else if (fsa_actions & A_LOG) { do_fsa_action(fsa_data, A_LOG, do_log); /* get out of here NOW! before anything worse happens */ } else if (fsa_actions & A_EXIT_1) { do_fsa_action(fsa_data, A_EXIT_1, do_exit); /* sub-system restart */ } else if ((fsa_actions & O_LRM_RECONNECT) == O_LRM_RECONNECT) { do_fsa_action(fsa_data, O_LRM_RECONNECT, do_lrm_control); } else if ((fsa_actions & O_CIB_RESTART) == O_CIB_RESTART) { do_fsa_action(fsa_data, O_CIB_RESTART, do_cib_control); } else if ((fsa_actions & O_PE_RESTART) == O_PE_RESTART) { do_fsa_action(fsa_data, O_PE_RESTART, do_pe_control); } else if ((fsa_actions & O_TE_RESTART) == O_TE_RESTART) { do_fsa_action(fsa_data, O_TE_RESTART, do_te_control); /* essential start tasks */ } else if (fsa_actions & A_STARTUP) { do_fsa_action(fsa_data, A_STARTUP, do_startup); } else if (fsa_actions & A_CIB_START) { do_fsa_action(fsa_data, A_CIB_START, do_cib_control); } else if (fsa_actions & A_HA_CONNECT) { do_fsa_action(fsa_data, A_HA_CONNECT, do_ha_control); } else if (fsa_actions & A_READCONFIG) { do_fsa_action(fsa_data, A_READCONFIG, do_read_config); /* sub-system start/connect */ } else if (fsa_actions & A_LRM_CONNECT) { do_fsa_action(fsa_data, A_LRM_CONNECT, do_lrm_control); } else if (fsa_actions & A_CCM_CONNECT) { #if SUPPORT_HEARTBEAT if (is_heartbeat_cluster()) { do_fsa_action(fsa_data, A_CCM_CONNECT, do_ccm_control); } #endif fsa_actions &= ~A_CCM_CONNECT; } else if (fsa_actions & A_TE_START) { do_fsa_action(fsa_data, A_TE_START, do_te_control); } else if (fsa_actions & A_PE_START) { do_fsa_action(fsa_data, A_PE_START, do_pe_control); /* Timers */ /* else if(fsa_actions & O_DC_TIMER_RESTART) { do_fsa_action(fsa_data, O_DC_TIMER_RESTART, do_timer_control) */ ; } else if (fsa_actions & A_DC_TIMER_STOP) { do_fsa_action(fsa_data, A_DC_TIMER_STOP, do_timer_control); } else if (fsa_actions & A_INTEGRATE_TIMER_STOP) { do_fsa_action(fsa_data, A_INTEGRATE_TIMER_STOP, do_timer_control); } else if (fsa_actions & A_INTEGRATE_TIMER_START) { do_fsa_action(fsa_data, A_INTEGRATE_TIMER_START, do_timer_control); } else if (fsa_actions & A_FINALIZE_TIMER_STOP) { do_fsa_action(fsa_data, A_FINALIZE_TIMER_STOP, do_timer_control); } else if (fsa_actions & A_FINALIZE_TIMER_START) { do_fsa_action(fsa_data, A_FINALIZE_TIMER_START, do_timer_control); /* * Highest priority actions */ } else if (fsa_actions & A_MSG_ROUTE) { do_fsa_action(fsa_data, A_MSG_ROUTE, do_msg_route); } else if (fsa_actions & A_RECOVER) { do_fsa_action(fsa_data, A_RECOVER, do_recover); } else if (fsa_actions & A_CL_JOIN_RESULT) { do_fsa_action(fsa_data, A_CL_JOIN_RESULT, do_cl_join_finalize_respond); } else if (fsa_actions & A_CL_JOIN_REQUEST) { do_fsa_action(fsa_data, A_CL_JOIN_REQUEST, do_cl_join_offer_respond); } else if (fsa_actions & A_SHUTDOWN_REQ) { do_fsa_action(fsa_data, A_SHUTDOWN_REQ, do_shutdown_req); } else if (fsa_actions & A_ELECTION_VOTE) { do_fsa_action(fsa_data, A_ELECTION_VOTE, do_election_vote); } else if (fsa_actions & A_ELECTION_COUNT) { do_fsa_action(fsa_data, A_ELECTION_COUNT, do_election_count_vote); } else if (fsa_actions & A_LRM_EVENT) { do_fsa_action(fsa_data, A_LRM_EVENT, do_lrm_event); /* * High priority actions */ } else if (fsa_actions & A_STARTED) { do_fsa_action(fsa_data, A_STARTED, do_started); } else if (fsa_actions & A_CL_JOIN_QUERY) { do_fsa_action(fsa_data, A_CL_JOIN_QUERY, do_cl_join_query); } else if (fsa_actions & A_DC_TIMER_START) { do_fsa_action(fsa_data, A_DC_TIMER_START, do_timer_control); /* * Medium priority actions * - Membership */ } else if (fsa_actions & A_DC_TAKEOVER) { do_fsa_action(fsa_data, A_DC_TAKEOVER, do_dc_takeover); } else if (fsa_actions & A_DC_RELEASE) { do_fsa_action(fsa_data, A_DC_RELEASE, do_dc_release); } else if (fsa_actions & A_DC_JOIN_FINAL) { do_fsa_action(fsa_data, A_DC_JOIN_FINAL, do_dc_join_final); } else if (fsa_actions & A_ELECTION_CHECK) { do_fsa_action(fsa_data, A_ELECTION_CHECK, do_election_check); } else if (fsa_actions & A_ELECTION_START) { do_fsa_action(fsa_data, A_ELECTION_START, do_election_vote); } else if (fsa_actions & A_DC_JOIN_OFFER_ALL) { do_fsa_action(fsa_data, A_DC_JOIN_OFFER_ALL, do_dc_join_offer_all); } else if (fsa_actions & A_DC_JOIN_OFFER_ONE) { do_fsa_action(fsa_data, A_DC_JOIN_OFFER_ONE, do_dc_join_offer_one); } else if (fsa_actions & A_DC_JOIN_PROCESS_REQ) { do_fsa_action(fsa_data, A_DC_JOIN_PROCESS_REQ, do_dc_join_filter_offer); } else if (fsa_actions & A_DC_JOIN_PROCESS_ACK) { do_fsa_action(fsa_data, A_DC_JOIN_PROCESS_ACK, do_dc_join_ack); } else if (fsa_actions & A_DC_JOIN_FINALIZE) { do_fsa_action(fsa_data, A_DC_JOIN_FINALIZE, do_dc_join_finalize); } else if (fsa_actions & A_CL_JOIN_ANNOUNCE) { do_fsa_action(fsa_data, A_CL_JOIN_ANNOUNCE, do_cl_join_announce); /* * Low(er) priority actions * Make sure the CIB is always updated before invoking the * PE, and the PE before the TE */ } else if (fsa_actions & A_TE_HALT) { do_fsa_action(fsa_data, A_TE_HALT, do_te_invoke); } else if (fsa_actions & A_TE_CANCEL) { do_fsa_action(fsa_data, A_TE_CANCEL, do_te_invoke); } else if (fsa_actions & A_LRM_INVOKE) { do_fsa_action(fsa_data, A_LRM_INVOKE, do_lrm_invoke); } else if (fsa_actions & A_PE_INVOKE) { do_fsa_action(fsa_data, A_PE_INVOKE, do_pe_invoke); } else if (fsa_actions & A_TE_INVOKE) { do_fsa_action(fsa_data, A_TE_INVOKE, do_te_invoke); /* Shutdown actions */ } else if (fsa_actions & A_DC_RELEASED) { do_fsa_action(fsa_data, A_DC_RELEASED, do_dc_release); } else if (fsa_actions & A_PE_STOP) { do_fsa_action(fsa_data, A_PE_STOP, do_pe_control); } else if (fsa_actions & A_TE_STOP) { do_fsa_action(fsa_data, A_TE_STOP, do_te_control); } else if (fsa_actions & A_SHUTDOWN) { do_fsa_action(fsa_data, A_SHUTDOWN, do_shutdown); } else if (fsa_actions & A_LRM_DISCONNECT) { do_fsa_action(fsa_data, A_LRM_DISCONNECT, do_lrm_control); } else if (fsa_actions & A_CCM_DISCONNECT) { #if SUPPORT_HEARTBEAT if (is_heartbeat_cluster()) { do_fsa_action(fsa_data, A_CCM_DISCONNECT, do_ccm_control); } #endif fsa_actions &= ~A_CCM_DISCONNECT; } else if (fsa_actions & A_HA_DISCONNECT) { do_fsa_action(fsa_data, A_HA_DISCONNECT, do_ha_control); } else if (fsa_actions & A_CIB_STOP) { do_fsa_action(fsa_data, A_CIB_STOP, do_cib_control); } else if (fsa_actions & A_STOP) { do_fsa_action(fsa_data, A_STOP, do_stop); /* exit gracefully */ } else if (fsa_actions & A_EXIT_0) { do_fsa_action(fsa_data, A_EXIT_0, do_exit); /* Error checking and reporting */ } else { - crm_err("Action %s (0x%llx) not supported ", + crm_err("Action %s not supported "CRM_XS" 0x%llx", fsa_action2string(fsa_actions), fsa_actions); register_fsa_error_adv(C_FSA_INTERNAL, I_ERROR, fsa_data, NULL, __FUNCTION__); } } } void log_fsa_input(fsa_data_t * stored_msg) { CRM_ASSERT(stored_msg); crm_trace("Processing queued input %d", stored_msg->id); if (stored_msg->fsa_cause == C_CCM_CALLBACK) { crm_trace("FSA processing CCM callback from %s", stored_msg->origin); } else if (stored_msg->fsa_cause == C_LRM_OP_CALLBACK) { crm_trace("FSA processing LRM callback from %s", stored_msg->origin); } else if (stored_msg->data == NULL) { crm_trace("FSA processing input from %s", stored_msg->origin); } else { ha_msg_input_t *ha_input = fsa_typed_data_adv(stored_msg, fsa_dt_ha_msg, __FUNCTION__); crm_trace("FSA processing XML message from %s", stored_msg->origin); crm_log_xml_trace(ha_input->xml, "FSA message data"); } } long long do_state_transition(long long actions, enum crmd_fsa_state cur_state, enum crmd_fsa_state next_state, fsa_data_t * msg_data) { int level = LOG_INFO; long long tmp = actions; gboolean clear_recovery_bit = TRUE; enum crmd_fsa_cause cause = msg_data->fsa_cause; enum crmd_fsa_input current_input = msg_data->fsa_input; const char *state_from = fsa_state2string(cur_state); const char *state_to = fsa_state2string(next_state); const char *input = fsa_input2string(current_input); CRM_LOG_ASSERT(cur_state != next_state); do_dot_log(DOT_PREFIX "\t%s -> %s [ label=%s cause=%s origin=%s ]", state_from, state_to, input, fsa_cause2string(cause), msg_data->origin); if (cur_state == S_IDLE || next_state == S_IDLE) { level = LOG_NOTICE; } else if (cur_state == S_NOT_DC || next_state == S_NOT_DC) { level = LOG_NOTICE; } else if (cur_state == S_ELECTION) { level = LOG_NOTICE; } else if (cur_state == S_STARTING) { level = LOG_NOTICE; } else if (next_state == S_RECOVERY) { level = LOG_WARNING; } do_crm_log(level, "State transition %s -> %s " CRM_XS " input=%s cause=%s origin=%s", state_from, state_to, input, fsa_cause2string(cause), msg_data->origin); /* the last two clauses might cause trouble later */ if (next_state != S_ELECTION && cur_state != S_RELEASE_DC) { election_timeout_stop(fsa_election); /* } else { */ /* crm_timer_start(election_timeout); */ } #if 0 if ((fsa_input_register & R_SHUTDOWN)) { set_bit(tmp, A_DC_TIMER_STOP); } #endif if (next_state == S_INTEGRATION) { set_bit(tmp, A_INTEGRATE_TIMER_START); } else { set_bit(tmp, A_INTEGRATE_TIMER_STOP); } if (next_state == S_FINALIZE_JOIN) { set_bit(tmp, A_FINALIZE_TIMER_START); } else { set_bit(tmp, A_FINALIZE_TIMER_STOP); } if (next_state != S_PENDING) { set_bit(tmp, A_DC_TIMER_STOP); } if (next_state != S_ELECTION) { highest_born_on = 0; } if (next_state != S_IDLE) { crm_timer_stop(recheck_timer); } if (cur_state == S_FINALIZE_JOIN && next_state == S_POLICY_ENGINE) { populate_cib_nodes(node_update_quick|node_update_all, __FUNCTION__); } switch (next_state) { case S_PENDING: fsa_cib_conn->cmds->set_slave(fsa_cib_conn, cib_scope_local); /* fall through */ case S_ELECTION: crm_trace("Resetting our DC to NULL on transition to %s", fsa_state2string(next_state)); update_dc(NULL); break; case S_NOT_DC: election_trigger->counter = 0; purge_stonith_cleanup(); if (is_set(fsa_input_register, R_SHUTDOWN)) { crm_info("(Re)Issuing shutdown request now" " that we have a new DC"); set_bit(tmp, A_SHUTDOWN_REQ); } CRM_LOG_ASSERT(fsa_our_dc != NULL); if (fsa_our_dc == NULL) { crm_err("Reached S_NOT_DC without a DC" " being recorded"); } break; case S_RECOVERY: clear_recovery_bit = FALSE; break; case S_FINALIZE_JOIN: CRM_LOG_ASSERT(AM_I_DC); if (cause == C_TIMER_POPPED) { crm_warn("Progressed to state %s after %s", fsa_state2string(next_state), fsa_cause2string(cause)); } if (crmd_join_phase_count(crm_join_welcomed) > 0) { crm_warn("%u cluster nodes failed to respond" " to the join offer.", crmd_join_phase_count(crm_join_welcomed)); crmd_join_phase_log(LOG_NOTICE); } else { crm_debug("All %d cluster nodes responded to the join offer.", crmd_join_phase_count(crm_join_integrated)); } break; case S_POLICY_ENGINE: election_trigger->counter = 0; CRM_LOG_ASSERT(AM_I_DC); if (cause == C_TIMER_POPPED) { crm_info("Progressed to state %s after %s", fsa_state2string(next_state), fsa_cause2string(cause)); } if (crmd_join_phase_count(crm_join_finalized) > 0) { crm_err("%u cluster nodes failed to confirm their join.", crmd_join_phase_count(crm_join_finalized)); crmd_join_phase_log(LOG_NOTICE); } else if (crmd_join_phase_count(crm_join_confirmed) == crm_active_peers()) { crm_debug("All %u cluster nodes are" " eligible to run resources.", crm_active_peers()); } else if (crmd_join_phase_count(crm_join_confirmed) > crm_active_peers()) { crm_err("We have more confirmed nodes than our membership does: %d vs. %d", crmd_join_phase_count(crm_join_confirmed), crm_active_peers()); register_fsa_input(C_FSA_INTERNAL, I_ELECTION, NULL); } else if (saved_ccm_membership_id != crm_peer_seq) { crm_info("Membership changed: %llu -> %llu - join restart", saved_ccm_membership_id, crm_peer_seq); register_fsa_input_before(C_FSA_INTERNAL, I_NODE_JOIN, NULL); } else { crm_warn("Only %u of %u cluster " "nodes are eligible to run resources - continue %d", crmd_join_phase_count(crm_join_confirmed), crm_active_peers(), crmd_join_phase_count(crm_join_welcomed)); } /* initialize_join(FALSE); */ break; case S_STOPPING: case S_TERMINATE: /* possibly redundant */ set_bit(fsa_input_register, R_SHUTDOWN); break; case S_IDLE: CRM_LOG_ASSERT(AM_I_DC); dump_rsc_info(); if (is_set(fsa_input_register, R_SHUTDOWN)) { crm_info("(Re)Issuing shutdown request now" " that we are the DC"); set_bit(tmp, A_SHUTDOWN_REQ); } if (recheck_timer->period_ms > 0) { crm_debug("Starting %s", get_timer_desc(recheck_timer)); crm_timer_start(recheck_timer); } break; default: break; } if (clear_recovery_bit && next_state != S_PENDING) { tmp &= ~A_RECOVER; } else if (clear_recovery_bit == FALSE) { tmp |= A_RECOVER; } if (tmp != actions) { /* fsa_dump_actions(actions ^ tmp, "New actions"); */ actions = tmp; } return actions; } void dump_rsc_info(void) { } void ghash_print_node(gpointer key, gpointer value, gpointer user_data) { const char *text = user_data; const char *uname = key; const char *value_s = value; crm_info("%s: %s %s", text, uname, value_s); } diff --git a/crmd/join_client.c b/crmd/join_client.c index 65e3beda39..ba19a8a048 100644 --- a/crmd/join_client.c +++ b/crmd/join_client.c @@ -1,280 +1,283 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include int reannounce_count = 0; void join_query_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data); extern ha_msg_input_t *copy_ha_msg_input(ha_msg_input_t * orig); /* A_CL_JOIN_QUERY */ /* is there a DC out there? */ void do_cl_join_query(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { xmlNode *req = create_request(CRM_OP_JOIN_ANNOUNCE, NULL, NULL, CRM_SYSTEM_DC, CRM_SYSTEM_CRMD, NULL); sleep(1); /* give the CCM time to propogate to the DC */ update_dc(NULL); /* Unset any existing value so that the result is not discarded */ crm_debug("Querying for a DC"); send_cluster_message(NULL, crm_msg_crmd, req, FALSE); free_xml(req); } /* A_CL_JOIN_ANNOUNCE */ /* this is kind of a workaround for the fact that we may not be around * or are otherwise unable to reply when the DC sends out A_WELCOME_ALL */ void do_cl_join_announce(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { /* Once we hear from the DC, we can stop the timer * * This timer was started either on startup or when a node * left the CCM list */ /* dont announce if we're in one of these states */ if (cur_state != S_PENDING) { - crm_warn("Do not announce ourselves in state %s", fsa_state2string(cur_state)); + crm_warn("Not announcing cluster join because in state %s", + fsa_state2string(cur_state)); return; } if (AM_I_OPERATIONAL) { /* send as a broadcast */ xmlNode *req = create_request(CRM_OP_JOIN_ANNOUNCE, NULL, NULL, CRM_SYSTEM_DC, CRM_SYSTEM_CRMD, NULL); crm_debug("Announcing availability"); update_dc(NULL); send_cluster_message(NULL, crm_msg_crmd, req, FALSE); free_xml(req); } else { /* Delay announce until we have finished local startup */ - crm_warn("Delaying announce until local startup is complete"); + crm_warn("Delaying announce of cluster join until local startup is complete"); return; } } static int query_call_id = 0; /* A_CL_JOIN_REQUEST */ /* aka. accept the welcome offer */ void do_cl_join_offer_respond(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg); const char *welcome_from = crm_element_value(input->msg, F_CRM_HOST_FROM); const char *join_id = crm_element_value(input->msg, F_CRM_JOIN_ID); #if 0 if (we are sick) { log error; /* save the request for later? */ return; } #endif - crm_trace("Accepting join offer from %s: join-%s", + crm_trace("Accepting cluster join offer from node %s "CRM_XS" join-%s", welcome_from, crm_element_value(input->msg, F_CRM_JOIN_ID)); /* we only ever want the last one */ if (query_call_id > 0) { crm_trace("Cancelling previous join query: %d", query_call_id); remove_cib_op_callback(query_call_id, FALSE); query_call_id = 0; } if (update_dc(input->msg) == FALSE) { - crm_warn("Discarding offer from %s (expected %s)", welcome_from, fsa_our_dc); + crm_warn("Discarding cluster join offer from node %s (expected %s)", + welcome_from, fsa_our_dc); return; } CRM_LOG_ASSERT(input != NULL); query_call_id = fsa_cib_conn->cmds->query(fsa_cib_conn, NULL, NULL, cib_scope_local | cib_no_children); fsa_register_cib_callback(query_call_id, FALSE, strdup(join_id), join_query_callback); crm_trace("Registered join query callback: %d", query_call_id); register_fsa_action(A_DC_TIMER_STOP); } void join_query_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { char *join_id = user_data; xmlNode *generation = create_xml_node(NULL, XML_CIB_TAG_GENERATION_TUPPLE); CRM_LOG_ASSERT(join_id != NULL); if (query_call_id != call_id) { crm_trace("Query %d superseded", call_id); goto done; } query_call_id = 0; if(rc != pcmk_ok || output == NULL) { crm_err("Could not retrieve version details for join-%s: %s (%d)", join_id, pcmk_strerror(rc), rc); register_fsa_error_adv(C_FSA_INTERNAL, I_ERROR, NULL, NULL, __FUNCTION__); } else if (fsa_our_dc == NULL) { crm_debug("Membership is in flux, not continuing join-%s", join_id); } else { xmlNode *reply = NULL; crm_debug("Respond to join offer join-%s from %s", join_id, fsa_our_dc); copy_in_properties(generation, output); reply = create_request(CRM_OP_JOIN_REQUEST, generation, fsa_our_dc, CRM_SYSTEM_DC, CRM_SYSTEM_CRMD, NULL); crm_xml_add(reply, F_CRM_JOIN_ID, join_id); send_cluster_message(crm_get_peer(0, fsa_our_dc), crm_msg_crmd, reply, TRUE); free_xml(reply); } done: free_xml(generation); } /* A_CL_JOIN_RESULT */ /* aka. this is notification that we have (or have not) been accepted */ void do_cl_join_finalize_respond(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { xmlNode *tmp1 = NULL; gboolean was_nack = TRUE; static gboolean first_join = TRUE; ha_msg_input_t *input = fsa_typed_data(fsa_dt_ha_msg); int join_id = -1; const char *op = crm_element_value(input->msg, F_CRM_TASK); const char *ack_nack = crm_element_value(input->msg, CRM_OP_JOIN_ACKNAK); const char *welcome_from = crm_element_value(input->msg, F_CRM_HOST_FROM); if (safe_str_neq(op, CRM_OP_JOIN_ACKNAK)) { crm_trace("Ignoring op=%s message", op); return; } /* calculate if it was an ack or a nack */ if (crm_is_true(ack_nack)) { was_nack = FALSE; } crm_element_value_int(input->msg, F_CRM_JOIN_ID, &join_id); if (was_nack) { - crm_err("Join (join-%d) with leader %s failed (NACK'd): Shutting down", - join_id, welcome_from); + crm_err("Shutting down because cluster join with leader %s failed " + CRM_XS" join-%d NACK'd", welcome_from, join_id); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); return; } if (AM_I_DC == FALSE && safe_str_eq(welcome_from, fsa_our_uname)) { crm_warn("Discarding our own welcome - we're no longer the DC"); return; } if (update_dc(input->msg) == FALSE) { - crm_warn("Discarding %s from %s (expected %s)", op, welcome_from, fsa_our_dc); + crm_warn("Discarding %s from node %s (expected from %s)", + op, welcome_from, fsa_our_dc); return; } /* send our status section to the DC */ crm_debug("Confirming join join-%d: %s", join_id, crm_element_value(input->msg, F_CRM_TASK)); tmp1 = do_lrm_query(TRUE, fsa_our_uname); if (tmp1 != NULL) { xmlNode *reply = create_request(CRM_OP_JOIN_CONFIRM, tmp1, fsa_our_dc, CRM_SYSTEM_DC, CRM_SYSTEM_CRMD, NULL); crm_xml_add_int(reply, F_CRM_JOIN_ID, join_id); crm_debug("join-%d: Join complete." " Sending local LRM status to %s", join_id, fsa_our_dc); if (first_join) { first_join = FALSE; /* * Clear any previous transient node attribute and lrm operations * * Corosync has a nasty habit of not being able to tell if a * node is returning or didn't leave in the first place. * This confuses Pacemaker because it never gets a "node up" * event which is normally used to clean up the status section. * * Do not remove the resources though, they'll be cleaned up in * do_dc_join_ack(). Removing them here creates a race * condition if the crmd is being recovered. * Instead of a list of active resources from the lrmd * we may end up with a blank status section. * If we are _NOT_ lucky, we will probe for the "wrong" instance * of anonymous clones and end up with multiple active * instances on the machine. */ erase_status_tag(fsa_our_uname, XML_TAG_TRANSIENT_NODEATTRS, 0); /* Just in case attrd was still around too */ if (is_not_set(fsa_input_register, R_SHUTDOWN)) { update_attrd(fsa_our_uname, "terminate", NULL, NULL, FALSE); update_attrd(fsa_our_uname, XML_CIB_ATTR_SHUTDOWN, "0", NULL, FALSE); } } send_cluster_message(crm_get_peer(0, fsa_our_dc), crm_msg_crmd, reply, TRUE); free_xml(reply); if (AM_I_DC == FALSE) { register_fsa_input_adv(cause, I_NOT_DC, NULL, A_NOTHING, TRUE, __FUNCTION__); update_attrd(NULL, NULL, NULL, NULL, FALSE); } free_xml(tmp1); } else { crm_err("Could not send our LRM state to the DC"); register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL); } } diff --git a/crmd/join_dc.c b/crmd/join_dc.c index 89172319cc..94bb399abd 100644 --- a/crmd/join_dc.c +++ b/crmd/join_dc.c @@ -1,696 +1,699 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include "tengine.h" char *max_epoch = NULL; char *max_generation_from = NULL; xmlNode *max_generation_xml = NULL; void initialize_join(gboolean before); void finalize_join_for(gpointer key, gpointer value, gpointer user_data); void finalize_sync_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data); gboolean check_join_state(enum crmd_fsa_state cur_state, const char *source); static int current_join_id = 0; unsigned long long saved_ccm_membership_id = 0; void crm_update_peer_join(const char *source, crm_node_t * node, enum crm_join_phase phase) { enum crm_join_phase last = 0; if(node == NULL) { - crm_err("%s: Could not set join-%u to %d for NULL", source, current_join_id, phase); + crm_err("Could not update join because node not specified" CRM_XS + " join-%u source=%s phase=%d", source, current_join_id, phase); return; } /* Remote nodes do not participate in joins */ if (is_set(node->flags, crm_remote_node)) { return; } last = node->join; if(phase == last) { crm_trace("%s: Node %s[%u] - join-%u phase still %u", source, node->uname, node->id, current_join_id, last); } else if (phase <= crm_join_none) { node->join = phase; crm_info("%s: Node %s[%u] - join-%u phase %u -> %u", source, node->uname, node->id, current_join_id, last, phase); } else if(phase == last + 1) { node->join = phase; crm_info("%s: Node %s[%u] - join-%u phase %u -> %u", source, node->uname, node->id, current_join_id, last, phase); } else { - crm_err("%s: Node %s[%u] - join-%u phase cannot transition from %u to %u", - source, node->uname, node->id, current_join_id, last, phase); + crm_err("Could not update join for node %s because phase transition invalid " + CRM_XS " join-%u source=%s node_id=%u last=%u new=%u", + node->uname, current_join_id, source, node->id, last, phase); } } void initialize_join(gboolean before) { GHashTableIter iter; crm_node_t *peer = NULL; /* clear out/reset a bunch of stuff */ crm_debug("join-%d: Initializing join data (flag=%s)", current_join_id, before ? "true" : "false"); g_hash_table_iter_init(&iter, crm_peer_cache); while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &peer)) { crm_update_peer_join(__FUNCTION__, peer, crm_join_none); } if (before) { if (max_generation_from != NULL) { free(max_generation_from); max_generation_from = NULL; } if (max_generation_xml != NULL) { free_xml(max_generation_xml); max_generation_xml = NULL; } clear_bit(fsa_input_register, R_HAVE_CIB); clear_bit(fsa_input_register, R_CIB_ASKED); } } static void join_make_offer(gpointer key, gpointer value, gpointer user_data) { xmlNode *offer = NULL; crm_node_t *member = (crm_node_t *)value; CRM_ASSERT(member != NULL); if (crm_is_peer_active(member) == FALSE) { crm_info("Not making an offer to %s: not active (%s)", member->uname, member->state); if(member->expected == NULL && safe_str_eq(member->state, CRM_NODE_LOST)) { /* You would think this unsafe, but in fact this plus an * active resource is what causes it to be fenced. * * Yes, this does mean that any node that dies at the same * time as the old DC and is not running resource (still) * won't be fenced. * * I'm not happy about this either. */ crm_update_peer_expected(__FUNCTION__, member, CRMD_JOINSTATE_DOWN); } return; } if (member->uname == NULL) { crm_err("No recipient for welcome message"); return; } if (saved_ccm_membership_id != crm_peer_seq) { saved_ccm_membership_id = crm_peer_seq; crm_info("Making join offers based on membership %llu", crm_peer_seq); } if(user_data && member->join > crm_join_none) { crm_info("Skipping %s: already known %d", member->uname, member->join); return; } crm_update_peer_join(__FUNCTION__, (crm_node_t*)member, crm_join_none); offer = create_request(CRM_OP_JOIN_OFFER, NULL, member->uname, CRM_SYSTEM_CRMD, CRM_SYSTEM_DC, NULL); crm_xml_add_int(offer, F_CRM_JOIN_ID, current_join_id); /* send the welcome */ crm_info("join-%d: Sending offer to %s", current_join_id, member->uname); send_cluster_message(member, crm_msg_crmd, offer, TRUE); free_xml(offer); crm_update_peer_join(__FUNCTION__, member, crm_join_welcomed); /* crm_update_peer_expected(__FUNCTION__, member, CRMD_JOINSTATE_PENDING); */ } /* A_DC_JOIN_OFFER_ALL */ void do_dc_join_offer_all(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { /* reset everyones status back to down or in_ccm in the CIB * * any nodes that are active in the CIB but not in the CCM list * will be seen as offline by the PE anyway */ current_join_id++; initialize_join(TRUE); /* do_update_cib_nodes(TRUE, __FUNCTION__); */ update_dc(NULL); if (cause == C_HA_MESSAGE && current_input == I_NODE_JOIN) { crm_info("A new node joined the cluster"); } g_hash_table_foreach(crm_peer_cache, join_make_offer, NULL); /* dont waste time by invoking the PE yet; */ crm_info("join-%d: Waiting on %d outstanding join acks", current_join_id, crmd_join_phase_count(crm_join_welcomed)); } /* A_DC_JOIN_OFFER_ONE */ void do_dc_join_offer_one(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { crm_node_t *member; ha_msg_input_t *welcome = NULL; const char *op = NULL; const char *join_to = NULL; if (msg_data->data) { welcome = fsa_typed_data(fsa_dt_ha_msg); } else { crm_info("An unknown node joined - (re-)offer to any unconfirmed nodes"); g_hash_table_foreach(crm_peer_cache, join_make_offer, &member); check_join_state(cur_state, __FUNCTION__); return; } if (welcome == NULL) { crm_err("Attempt to send welcome message without a message to reply to!"); return; } join_to = crm_element_value(welcome->msg, F_CRM_HOST_FROM); if (join_to == NULL) { crm_err("Attempt to send welcome message without a host to reply to!"); return; } member = crm_get_peer(0, join_to); op = crm_element_value(welcome->msg, F_CRM_TASK); if (join_to != NULL && (cur_state == S_INTEGRATION || cur_state == S_FINALIZE_JOIN)) { /* note: it _is_ possible that a node will have been * sick or starting up when the original offer was made. * however, it will either re-announce itself in due course * _or_ we can re-store the original offer on the client. */ crm_trace("(Re-)offering membership to %s...", join_to); } crm_info("join-%d: Processing %s request from %s in state %s", current_join_id, op, join_to, fsa_state2string(cur_state)); crm_update_peer_join(__FUNCTION__, member, crm_join_none); join_make_offer(NULL, member, NULL); /* always offer to the DC (ourselves) * this ensures the correct value for max_generation_from */ member = crm_get_peer(0, fsa_our_uname); join_make_offer(NULL, member, NULL); /* this was a genuine join request, cancel any existing * transition and invoke the PE */ abort_transition(INFINITY, tg_restart, "Node join", NULL); /* dont waste time by invoking the pe yet; */ crm_debug("Waiting on %d outstanding join acks for join-%d", crmd_join_phase_count(crm_join_welcomed), current_join_id); } static int compare_int_fields(xmlNode * left, xmlNode * right, const char *field) { const char *elem_l = crm_element_value(left, field); const char *elem_r = crm_element_value(right, field); int int_elem_l = crm_int_helper(elem_l, NULL); int int_elem_r = crm_int_helper(elem_r, NULL); if (int_elem_l < int_elem_r) { return -1; } else if (int_elem_l > int_elem_r) { return 1; } return 0; } /* A_DC_JOIN_PROCESS_REQ */ void do_dc_join_filter_offer(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { xmlNode *generation = NULL; int cmp = 0; int join_id = -1; gboolean ack_nack_bool = TRUE; const char *ack_nack = CRMD_JOINSTATE_MEMBER; ha_msg_input_t *join_ack = fsa_typed_data(fsa_dt_ha_msg); const char *join_from = crm_element_value(join_ack->msg, F_CRM_HOST_FROM); const char *ref = crm_element_value(join_ack->msg, F_CRM_REFERENCE); crm_node_t *join_node = crm_get_peer(0, join_from); crm_debug("Processing req from %s", join_from); generation = join_ack->xml; crm_element_value_int(join_ack->msg, F_CRM_JOIN_ID, &join_id); if (max_generation_xml != NULL && generation != NULL) { int lpc = 0; const char *attributes[] = { XML_ATTR_GENERATION_ADMIN, XML_ATTR_GENERATION, XML_ATTR_NUMUPDATES, }; for (lpc = 0; cmp == 0 && lpc < DIMOF(attributes); lpc++) { cmp = compare_int_fields(max_generation_xml, generation, attributes[lpc]); } } if (join_id != current_join_id) { crm_debug("Invalid response from %s: join-%d vs. join-%d", join_from, join_id, current_join_id); check_join_state(cur_state, __FUNCTION__); return; } else if (join_node == NULL || crm_is_peer_active(join_node) == FALSE) { crm_err("Node %s is not a member", join_from); ack_nack_bool = FALSE; } else if (generation == NULL) { crm_err("Generation was NULL"); ack_nack_bool = FALSE; } else if (max_generation_xml == NULL) { max_generation_xml = copy_xml(generation); max_generation_from = strdup(join_from); } else if (cmp < 0 || (cmp == 0 && safe_str_eq(join_from, fsa_our_uname))) { crm_debug("%s has a better generation number than" " the current max %s", join_from, max_generation_from); if (max_generation_xml) { crm_log_xml_debug(max_generation_xml, "Max generation"); } crm_log_xml_debug(generation, "Their generation"); free(max_generation_from); free_xml(max_generation_xml); max_generation_from = strdup(join_from); max_generation_xml = copy_xml(join_ack->xml); } if (ack_nack_bool == FALSE) { /* NACK this client */ ack_nack = CRMD_JOINSTATE_NACK; crm_update_peer_join(__FUNCTION__, join_node, crm_join_nack); - crm_err("join-%d: NACK'ing node %s (ref %s)", join_id, join_from, ref); + crm_err("Rejecting cluster join request from %s " CRM_XS + " NACK join-%d ref=%s", join_from, join_id, ref); } else { crm_debug("join-%d: Welcoming node %s (ref %s)", join_id, join_from, ref); crm_update_peer_join(__FUNCTION__, join_node, crm_join_integrated); } crm_update_peer_expected(__FUNCTION__, join_node, ack_nack); crm_debug("%u nodes have been integrated into join-%d", crmd_join_phase_count(crm_join_integrated), join_id); if (check_join_state(cur_state, __FUNCTION__) == FALSE) { /* dont waste time by invoking the PE yet; */ crm_debug("join-%d: Still waiting on %d outstanding offers", join_id, crmd_join_phase_count(crm_join_welcomed)); } } /* A_DC_JOIN_FINALIZE */ void do_dc_join_finalize(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { char *sync_from = NULL; int rc = pcmk_ok; /* This we can do straight away and avoid clients timing us out * while we compute the latest CIB */ crm_debug("Finializing join-%d for %d clients", current_join_id, crmd_join_phase_count(crm_join_integrated)); crmd_join_phase_log(LOG_INFO); if (crmd_join_phase_count(crm_join_welcomed) != 0) { crm_info("Waiting for %d more nodes", crmd_join_phase_count(crm_join_welcomed)); /* crmd_fsa_stall(FALSE); Needed? */ return; } else if (crmd_join_phase_count(crm_join_integrated) == 0) { /* Nothing to do */ check_join_state(fsa_state, __FUNCTION__); return; } clear_bit(fsa_input_register, R_HAVE_CIB); if (max_generation_from == NULL || safe_str_eq(max_generation_from, fsa_our_uname)) { set_bit(fsa_input_register, R_HAVE_CIB); } if (is_set(fsa_input_register, R_IN_TRANSITION)) { - crm_warn("join-%d: We are still in a transition." - " Delaying until the TE completes.", current_join_id); + crm_warn("Delaying response to cluster join offer while transition in progress " + CRM_XS " join-%d", current_join_id); crmd_fsa_stall(FALSE); return; } if (max_generation_from && is_set(fsa_input_register, R_HAVE_CIB) == FALSE) { /* ask for the agreed best CIB */ sync_from = strdup(max_generation_from); set_bit(fsa_input_register, R_CIB_ASKED); - crm_notice("join-%d: Syncing the CIB from %s to the rest of the cluster", - current_join_id, sync_from); + crm_notice("Syncing the Cluster Information Base from %s to rest of cluster " + CRM_XS " join-%d", sync_from, current_join_id); crm_log_xml_notice(max_generation_xml, "Requested version"); } else { /* Send _our_ CIB out to everyone */ sync_from = strdup(fsa_our_uname); crm_info("join-%d: Syncing our CIB to the rest of the cluster", current_join_id); crm_log_xml_debug(max_generation_xml, "Requested version"); } rc = fsa_cib_conn->cmds->sync_from(fsa_cib_conn, sync_from, NULL, cib_quorum_override); fsa_register_cib_callback(rc, FALSE, sync_from, finalize_sync_callback); } void finalize_sync_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { CRM_LOG_ASSERT(-EPERM != rc); clear_bit(fsa_input_register, R_CIB_ASKED); if (rc != pcmk_ok) { do_crm_log((rc == -pcmk_err_old_data ? LOG_WARNING : LOG_ERR), "Sync from %s failed: %s", (char *)user_data, pcmk_strerror(rc)); /* restart the whole join process */ register_fsa_error_adv(C_FSA_INTERNAL, I_ELECTION_DC, NULL, NULL, __FUNCTION__); } else if (AM_I_DC && fsa_state == S_FINALIZE_JOIN) { set_bit(fsa_input_register, R_HAVE_CIB); clear_bit(fsa_input_register, R_CIB_ASKED); /* make sure dc_uuid is re-set to us */ if (check_join_state(fsa_state, __FUNCTION__) == FALSE) { crm_debug("Notifying %d clients of join-%d results", crmd_join_phase_count(crm_join_integrated), current_join_id); g_hash_table_foreach(crm_peer_cache, finalize_join_for, NULL); } } else { crm_debug("No longer the DC in S_FINALIZE_JOIN: %s/%s", AM_I_DC ? "DC" : "CRMd", fsa_state2string(fsa_state)); } } static void join_update_complete_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { fsa_data_t *msg_data = NULL; if (rc == pcmk_ok) { crm_debug("Join update %d complete", call_id); check_join_state(fsa_state, __FUNCTION__); } else { crm_err("Join update %d failed", call_id); crm_log_xml_debug(msg, "failed"); register_fsa_error(C_FSA_INTERNAL, I_ERROR, NULL); } } /* A_DC_JOIN_PROCESS_ACK */ void do_dc_join_ack(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { int join_id = -1; int call_id = 0; ha_msg_input_t *join_ack = fsa_typed_data(fsa_dt_ha_msg); const char *op = crm_element_value(join_ack->msg, F_CRM_TASK); const char *join_from = crm_element_value(join_ack->msg, F_CRM_HOST_FROM); crm_node_t *peer = crm_get_peer(0, join_from); if (safe_str_neq(op, CRM_OP_JOIN_CONFIRM) || peer == NULL) { crm_debug("Ignoring op=%s message from %s", op, join_from); return; } crm_trace("Processing ack from %s", join_from); crm_element_value_int(join_ack->msg, F_CRM_JOIN_ID, &join_id); if (peer->join != crm_join_finalized) { crm_info("Join not in progress: ignoring join-%d from %s (phase = %d)", join_id, join_from, peer->join); return; } else if (join_id != current_join_id) { crm_err("Invalid response from %s: join-%d vs. join-%d", join_from, join_id, current_join_id); crm_update_peer_join(__FUNCTION__, peer, crm_join_nack); return; } crm_update_peer_join(__FUNCTION__, peer, crm_join_confirmed); crm_info("join-%d: Updating node state to %s for %s", join_id, CRMD_JOINSTATE_MEMBER, join_from); /* update CIB with the current LRM status from the node * We dont need to notify the TE of these updates, a transition will * be started in due time */ erase_status_tag(join_from, XML_CIB_TAG_LRM, cib_scope_local); fsa_cib_update(XML_CIB_TAG_STATUS, join_ack->xml, cib_scope_local | cib_quorum_override | cib_can_create, call_id, NULL); fsa_register_cib_callback(call_id, FALSE, NULL, join_update_complete_callback); crm_debug("join-%d: Registered callback for LRM update %d", join_id, call_id); } void finalize_join_for(gpointer key, gpointer value, gpointer user_data) { xmlNode *acknak = NULL; xmlNode *tmp1 = NULL; crm_node_t *join_node = value; const char *join_to = join_node->uname; if(join_node->join != crm_join_integrated) { crm_trace("Skipping %s in state %d", join_to, join_node->join); return; } /* make sure a node entry exists for the new node */ crm_trace("Creating node entry for %s", join_to); tmp1 = create_xml_node(NULL, XML_CIB_TAG_NODE); set_uuid(tmp1, XML_ATTR_UUID, join_node); crm_xml_add(tmp1, XML_ATTR_UNAME, join_to); fsa_cib_anon_update(XML_CIB_TAG_NODES, tmp1, cib_scope_local | cib_quorum_override | cib_can_create); free_xml(tmp1); join_node = crm_get_peer(0, join_to); if (crm_is_peer_active(join_node) == FALSE) { /* * NACK'ing nodes that the membership layer doesn't know about yet * simply creates more churn * * Better to leave them waiting and let the join restart when * the new membership event comes in * * All other NACKs (due to versions etc) should still be processed */ crm_update_peer_expected(__FUNCTION__, join_node, CRMD_JOINSTATE_PENDING); return; } /* send the ack/nack to the node */ acknak = create_request(CRM_OP_JOIN_ACKNAK, NULL, join_to, CRM_SYSTEM_CRMD, CRM_SYSTEM_DC, NULL); crm_xml_add_int(acknak, F_CRM_JOIN_ID, current_join_id); crm_debug("join-%d: ACK'ing join request from %s", current_join_id, join_to); crm_xml_add(acknak, CRM_OP_JOIN_ACKNAK, XML_BOOLEAN_TRUE); crm_update_peer_join(__FUNCTION__, join_node, crm_join_finalized); crm_update_peer_expected(__FUNCTION__, join_node, CRMD_JOINSTATE_MEMBER); send_cluster_message(crm_get_peer(0, join_to), crm_msg_crmd, acknak, TRUE); free_xml(acknak); return; } void ghash_print_node(gpointer key, gpointer value, gpointer user_data); gboolean check_join_state(enum crmd_fsa_state cur_state, const char *source) { static unsigned long long highest_seq = 0; crm_debug("Invoked by %s in state: %s", source, fsa_state2string(cur_state)); if (saved_ccm_membership_id != crm_peer_seq) { crm_debug("%s: Membership changed since join started: %llu -> %llu (%llu)", source, saved_ccm_membership_id, crm_peer_seq, highest_seq); if(highest_seq < crm_peer_seq) { /* Don't spam the FSA with duplicates */ highest_seq = crm_peer_seq; register_fsa_input_before(C_FSA_INTERNAL, I_NODE_JOIN, NULL); } } else if (cur_state == S_INTEGRATION) { if (crmd_join_phase_count(crm_join_welcomed) == 0) { crm_debug("join-%d: Integration of %d peers complete: %s", current_join_id, crmd_join_phase_count(crm_join_integrated), source); register_fsa_input_before(C_FSA_INTERNAL, I_INTEGRATED, NULL); return TRUE; } } else if (cur_state == S_FINALIZE_JOIN) { if (is_set(fsa_input_register, R_HAVE_CIB) == FALSE) { crm_debug("join-%d: Delaying I_FINALIZED until we have the CIB", current_join_id); return TRUE; } else if (crmd_join_phase_count(crm_join_welcomed) != 0) { crm_debug("join-%d: Still waiting on %d welcomed nodes", current_join_id, crmd_join_phase_count(crm_join_welcomed)); crmd_join_phase_log(LOG_DEBUG); } else if (crmd_join_phase_count(crm_join_integrated) != 0) { crm_debug("join-%d: Still waiting on %d integrated nodes", current_join_id, crmd_join_phase_count(crm_join_integrated)); crmd_join_phase_log(LOG_DEBUG); } else if (crmd_join_phase_count(crm_join_finalized) != 0) { crm_debug("join-%d: Still waiting on %d finalized nodes", current_join_id, crmd_join_phase_count(crm_join_finalized)); crmd_join_phase_log(LOG_DEBUG); } else { crm_debug("join-%d complete: %s", current_join_id, source); register_fsa_input_later(C_FSA_INTERNAL, I_FINALIZED, NULL); return TRUE; } } return FALSE; } void do_dc_join_final(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { crm_debug("Ensuring DC, quorum and node attributes are up-to-date"); update_attrd(NULL, NULL, NULL, NULL, FALSE); crm_update_quorum(crm_have_quorum, TRUE); } int crmd_join_phase_count(enum crm_join_phase phase) { int count = 0; crm_node_t *peer; GHashTableIter iter; g_hash_table_iter_init(&iter, crm_peer_cache); while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &peer)) { if(peer->join == phase) { count++; } } return count; } void crmd_join_phase_log(int level) { crm_node_t *peer; GHashTableIter iter; g_hash_table_iter_init(&iter, crm_peer_cache); while (g_hash_table_iter_next(&iter, NULL, (gpointer *) &peer)) { const char *state = "unknown"; switch(peer->join) { case crm_join_nack: state = "nack"; break; case crm_join_none: state = "none"; break; case crm_join_welcomed: state = "welcomed"; break; case crm_join_integrated: state = "integrated"; break; case crm_join_finalized: state = "finalized"; break; case crm_join_confirmed: state = "confirmed"; break; } do_crm_log(level, "join-%d: %s=%s", current_join_id, peer->uname, state); } } diff --git a/crmd/pengine.c b/crmd/pengine.c index 4a8d617ba6..f8331d3554 100644 --- a/crmd/pengine.c +++ b/crmd/pengine.c @@ -1,362 +1,367 @@ /* * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include /* for access */ #include /* for calls to open */ #include /* for calls to open */ #include /* for calls to open */ #include /* for getpwuid */ #include /* for initgroups */ #include /* for getrlimit */ #include /* for getrlimit */ #include #include #include #include #include #include #include #include struct crm_subsystem_s *pe_subsystem = NULL; void do_pe_invoke_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data); static void save_cib_contents(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { char *id = user_data; register_fsa_error_adv(C_FSA_INTERNAL, I_ERROR, NULL, NULL, __FUNCTION__); CRM_CHECK(id != NULL, return); if (rc == pcmk_ok) { int len = 15; char *filename = NULL; len += strlen(id); len += strlen(PE_STATE_DIR); filename = calloc(1, len); CRM_CHECK(filename != NULL, return); sprintf(filename, PE_STATE_DIR "/pe-core-%s.bz2", id); if (write_xml_file(output, filename, TRUE) < 0) { - crm_err("Could not save CIB contents after PE crash to %s", filename); + crm_err("Could not save Cluster Information Base to %s after Policy Engine crash", + filename); } else { - crm_notice("Saved CIB contents after PE crash to %s", filename); + crm_notice("Saved Cluster Information Base to %s after Policy Engine crash", + filename); } free(filename); } } static void pe_ipc_destroy(gpointer user_data) { if (is_set(fsa_input_register, pe_subsystem->flag_required)) { int rc = pcmk_ok; char *uuid_str = crm_generate_uuid(); - crm_crit("Connection to the Policy Engine failed (pid=%d, uuid=%s)", - pe_subsystem->pid, uuid_str); + crm_crit("Connection to the Policy Engine failed " + CRM_XS " pid=%d uuid=%s", pe_subsystem->pid, uuid_str); /* *The PE died... * * Save the current CIB so that we have a chance of * figuring out what killed it. * * Delay raising the I_ERROR until the query below completes or * 5s is up, whichever comes first. * */ rc = fsa_cib_conn->cmds->query(fsa_cib_conn, NULL, NULL, cib_scope_local); fsa_register_cib_callback(rc, FALSE, uuid_str, save_cib_contents); } else { if (is_heartbeat_cluster()) { stop_subsystem(pe_subsystem, FALSE); } crm_info("Connection to the Policy Engine released"); } clear_bit(fsa_input_register, pe_subsystem->flag_connected); pe_subsystem->pid = -1; pe_subsystem->source = NULL; pe_subsystem->client = NULL; mainloop_set_trigger(fsa_source); return; } static int pe_ipc_dispatch(const char *buffer, ssize_t length, gpointer userdata) { xmlNode *msg = string2xml(buffer); if (msg) { route_message(C_IPC_MESSAGE, msg); } free_xml(msg); return 0; } /* A_PE_START, A_PE_STOP, A_TE_RESTART */ void do_pe_control(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { struct crm_subsystem_s *this_subsys = pe_subsystem; long long stop_actions = A_PE_STOP; long long start_actions = A_PE_START; static struct ipc_client_callbacks pe_callbacks = { .dispatch = pe_ipc_dispatch, .destroy = pe_ipc_destroy }; if (action & stop_actions) { clear_bit(fsa_input_register, pe_subsystem->flag_required); mainloop_del_ipc_client(pe_subsystem->source); pe_subsystem->source = NULL; clear_bit(fsa_input_register, pe_subsystem->flag_connected); } if ((action & start_actions) && (is_set(fsa_input_register, R_PE_CONNECTED) == FALSE)) { if (cur_state != S_STOPPING) { set_bit(fsa_input_register, pe_subsystem->flag_required); pe_subsystem->source = mainloop_add_ipc_client(CRM_SYSTEM_PENGINE, G_PRIORITY_DEFAULT, 5 * 1024 * 1024 /* 5Mb */ , NULL, &pe_callbacks); if (pe_subsystem->source == NULL) { crm_warn("Setup of client connection failed, not adding channel to mainloop"); register_fsa_error(C_FSA_INTERNAL, I_FAIL, NULL); return; } /* if (is_openais_cluster()) { */ /* pe_subsystem->pid = pe_subsystem->ipc->farside_pid; */ /* } */ set_bit(fsa_input_register, pe_subsystem->flag_connected); } else { crm_info("Ignoring request to start %s while shutting down", this_subsys->name); } } } int fsa_pe_query = 0; char *fsa_pe_ref = NULL; /* A_PE_INVOKE */ void do_pe_invoke(long long action, enum crmd_fsa_cause cause, enum crmd_fsa_state cur_state, enum crmd_fsa_input current_input, fsa_data_t * msg_data) { if (AM_I_DC == FALSE) { - crm_err("Not DC: No need to invoke the PE (anymore): %s", fsa_action2string(action)); + crm_err("Not invoking Policy Engine because not DC: %s", + fsa_action2string(action)); return; } if (is_set(fsa_input_register, R_PE_CONNECTED) == FALSE) { if (is_set(fsa_input_register, R_SHUTDOWN)) { - crm_err("Cannot shut down gracefully without the PE"); + crm_err("Cannot shut down gracefully without the Policy Engine"); register_fsa_input_before(C_FSA_INTERNAL, I_TERMINATE, NULL); } else { - crm_info("Waiting for the PE to connect"); + crm_info("Waiting for the Policy Engine to connect"); crmd_fsa_stall(FALSE); register_fsa_action(A_PE_START); } return; } if (cur_state != S_POLICY_ENGINE) { - crm_notice("No need to invoke the PE in state %s", fsa_state2string(cur_state)); + crm_notice("Not invoking Policy Engine because in state %s", + fsa_state2string(cur_state)); return; } if (is_set(fsa_input_register, R_HAVE_CIB) == FALSE) { - crm_err("Attempted to invoke the PE without a consistent copy of the CIB!"); + crm_err("Attempted to invoke Policy Engine without consistent Cluster Information Base!"); /* start the join from scratch */ register_fsa_input_before(C_FSA_INTERNAL, I_ELECTION, NULL); return; } fsa_pe_query = fsa_cib_conn->cmds->query(fsa_cib_conn, NULL, NULL, cib_scope_local); crm_debug("Query %d: Requesting the current CIB: %s", fsa_pe_query, fsa_state2string(fsa_state)); /* Make sure any queued calculations are discarded */ free(fsa_pe_ref); fsa_pe_ref = NULL; fsa_register_cib_callback(fsa_pe_query, FALSE, NULL, do_pe_invoke_callback); } static void force_local_option(xmlNode *xml, const char *attr_name, const char *attr_value) { int max = 0; int lpc = 0; int xpath_max = 1024; char *xpath_string = NULL; xmlXPathObjectPtr xpathObj = NULL; xpath_string = calloc(1, xpath_max); lpc = snprintf(xpath_string, xpath_max, "%.128s//%s//nvpair[@name='%.128s']", get_object_path(XML_CIB_TAG_CRMCONFIG), XML_CIB_TAG_PROPSET, attr_name); CRM_LOG_ASSERT(lpc > 0); xpathObj = xpath_search(xml, xpath_string); max = numXpathResults(xpathObj); free(xpath_string); for (lpc = 0; lpc < max; lpc++) { xmlNode *match = getXpathResult(xpathObj, lpc); crm_trace("Forcing %s/%s = %s", ID(match), attr_name, attr_value); crm_xml_add(match, XML_NVPAIR_ATTR_VALUE, attr_value); } if(max == 0) { char *attr_id = crm_concat(CIB_OPTIONS_FIRST, attr_name, '-'); xmlNode *configuration = NULL; xmlNode *crm_config = NULL; xmlNode *cluster_property_set = NULL; crm_trace("Creating %s/%s = %s", attr_id, attr_name, attr_value); configuration = find_entity(xml, XML_CIB_TAG_CONFIGURATION, NULL); if (configuration == NULL) { configuration = create_xml_node(xml, XML_CIB_TAG_CONFIGURATION); } crm_config = find_entity(configuration, XML_CIB_TAG_CRMCONFIG, NULL); if (crm_config == NULL) { crm_config = create_xml_node(configuration, XML_CIB_TAG_CRMCONFIG); } cluster_property_set = find_entity(crm_config, XML_CIB_TAG_PROPSET, NULL); if (cluster_property_set == NULL) { cluster_property_set = create_xml_node(crm_config, XML_CIB_TAG_PROPSET); crm_xml_add(cluster_property_set, XML_ATTR_ID, CIB_OPTIONS_FIRST); } xml = create_xml_node(cluster_property_set, XML_CIB_TAG_NVPAIR); crm_xml_add(xml, XML_ATTR_ID, attr_id); crm_xml_add(xml, XML_NVPAIR_ATTR_NAME, attr_name); crm_xml_add(xml, XML_NVPAIR_ATTR_VALUE, attr_value); free(attr_id); } freeXpathObject(xpathObj); } void do_pe_invoke_callback(xmlNode * msg, int call_id, int rc, xmlNode * output, void *user_data) { int sent; xmlNode *cmd = NULL; pid_t watchdog = pcmk_locate_sbd(); if (rc != pcmk_ok) { - crm_err("Cant retrieve the CIB: %s (call %d)", pcmk_strerror(rc), call_id); + crm_err("Could not retrieve the Cluster Information Base: %s " + CRM_XS " call=%d", pcmk_strerror(rc), call_id); register_fsa_error_adv(C_FSA_INTERNAL, I_ERROR, NULL, NULL, __FUNCTION__); return; } else if (call_id != fsa_pe_query) { crm_trace("Skipping superseded CIB query: %d (current=%d)", call_id, fsa_pe_query); return; } else if (AM_I_DC == FALSE || is_set(fsa_input_register, R_PE_CONNECTED) == FALSE) { crm_debug("No need to invoke the PE anymore"); return; } else if (fsa_state != S_POLICY_ENGINE) { crm_debug("Discarding PE request in state: %s", fsa_state2string(fsa_state)); return; /* this callback counts as 1 */ } else if (num_cib_op_callbacks() > 1) { crm_debug("Re-asking for the CIB: %d other peer updates still pending", (num_cib_op_callbacks() - 1)); sleep(1); register_fsa_action(A_PE_INVOKE); return; } else if (fsa_state != S_POLICY_ENGINE) { crm_err("Invoking PE in state: %s", fsa_state2string(fsa_state)); return; } CRM_LOG_ASSERT(output != NULL); /* refresh our remote-node cache when the pengine is invoked */ crm_remote_peer_cache_refresh(output); crm_xml_add(output, XML_ATTR_DC_UUID, fsa_our_uuid); crm_xml_add_int(output, XML_ATTR_HAVE_QUORUM, fsa_has_quorum); force_local_option(output, XML_ATTR_HAVE_WATCHDOG, watchdog?"true":"false"); if (ever_had_quorum && crm_have_quorum == FALSE) { crm_xml_add_int(output, XML_ATTR_QUORUM_PANIC, 1); } cmd = create_request(CRM_OP_PECALC, output, NULL, CRM_SYSTEM_PENGINE, CRM_SYSTEM_DC, NULL); free(fsa_pe_ref); fsa_pe_ref = crm_element_value_copy(cmd, XML_ATTR_REFERENCE); sent = crm_ipc_send(mainloop_get_ipc_client(pe_subsystem->source), cmd, 0, 0, NULL); if (sent <= 0) { crm_err("Could not contact the pengine: %d", sent); register_fsa_error_adv(C_FSA_INTERNAL, I_ERROR, NULL, NULL, __FUNCTION__); } crm_debug("Invoking the PE: query=%d, ref=%s, seq=%llu, quorate=%d", fsa_pe_query, fsa_pe_ref, crm_peer_seq, fsa_has_quorum); free_xml(cmd); }