fsa.c
No OneTemporary
Actions

Size

25 KB

Referenced Files

None

Subscribers

None

fsa.c
View Options

	/*
	* Copyright (C) 2004 Andrew Beekhof <andrew@beekhof.net>
	*
	* 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 <crm_internal.h>

	#include <sys/param.h>
	#include <stdio.h>
	#include <string.h>
	#include <time.h>

	#include <crm/crm.h>
	#include <crm/lrmd.h>
	#include <crm/cib.h>
	#include <crm/msg_xml.h>
	#include <crm/common/xml.h>
	#include <crm/cluster/election.h>

	#include <crm/cluster.h>

	#include <crmd.h>
	#include <crmd_messages.h>
	#include <crmd_fsa.h>
	#include <tengine.h>
	#include <fsa_proto.h>
	#include <fsa_matrix.h>

	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

	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 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);

	if (next_state != S_ELECTION && cur_state != S_RELEASE_DC) {
	controld_stop_election_timer();
	}
	#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);
	}

File Metadata

Mime Type: text/x-c
Expires: Thu, Jun 26, 7:05 PM (1 d, 9 h)
Storage Engine: blob
Storage Format: Raw Data
Storage Handle: 1959473
Default Alt Text: fsa.c (25 KB)

fsa.cNo OneTemporaryActions

fsa.cView Options

File Metadata

Event Timeline

fsa.c
No OneTemporary
Actions

fsa.c
View Options