join_dc.c
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join_dc.c
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	/*
	* 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 <crm/crm.h>

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

	#include <crmd_fsa.h>
	#include <crmd_messages.h>

	GHashTable *welcomed_nodes = NULL;
	GHashTable *integrated_nodes = NULL;
	GHashTable *finalized_nodes = NULL;
	GHashTable *confirmed_nodes = NULL;
	char *max_epoch = NULL;
	char *max_generation_from = NULL;
	xmlNode *max_generation_xml = NULL;

	void initialize_join(gboolean before);
	gboolean 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
	initialize_join(gboolean before)
	{
	/* 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_destroy(welcomed_nodes);
	g_hash_table_destroy(integrated_nodes);
	g_hash_table_destroy(finalized_nodes);
	g_hash_table_destroy(confirmed_nodes);

	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);
	}

	welcomed_nodes = g_hash_table_new_full(crm_str_hash, g_str_equal,
	g_hash_destroy_str, g_hash_destroy_str);
	integrated_nodes = g_hash_table_new_full(crm_str_hash, g_str_equal,
	g_hash_destroy_str, g_hash_destroy_str);
	finalized_nodes = g_hash_table_new_full(crm_str_hash, g_str_equal,
	g_hash_destroy_str, g_hash_destroy_str);
	confirmed_nodes = g_hash_table_new_full(crm_str_hash, g_str_equal,
	g_hash_destroy_str, g_hash_destroy_str);
	}

	void
	erase_node_from_join(const char *uname)
	{
	gboolean w = FALSE, i = FALSE, f = FALSE, c = FALSE;

	if (uname == NULL) {
	return;
	}

	if (welcomed_nodes != NULL) {
	w = g_hash_table_remove(welcomed_nodes, uname);
	}
	if (integrated_nodes != NULL) {
	i = g_hash_table_remove(integrated_nodes, uname);
	}
	if (finalized_nodes != NULL) {
	f = g_hash_table_remove(finalized_nodes, uname);
	}
	if (confirmed_nodes != NULL) {
	c = g_hash_table_remove(confirmed_nodes, uname);
	}

	if (w \|\| i \|\| f \|\| c) {
	crm_debug("Removed node %s from join calculations:"
	" welcomed=%d itegrated=%d finalized=%d confirmed=%d", uname, w, i, f, c);
	}
	}

	static void
	join_make_offer(gpointer key, gpointer value, gpointer user_data)
	{
	const char *join_to = NULL;
	const crm_node_t *member = value;

	CRM_ASSERT(member != NULL);
	if (crm_is_peer_active(member) == FALSE) {
	crm_trace("Not making an offer to %s: not active", member->uname);
	return;
	}

	join_to = member->uname;
	if (join_to == NULL) {
	crm_err("No recipient for welcome message");
	return;
	}

	erase_node_from_join(join_to);

	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 (crm_is_peer_active(member)) {
	xmlNode *offer = create_request(CRM_OP_JOIN_OFFER, NULL, join_to,
	CRM_SYSTEM_CRMD, CRM_SYSTEM_DC, NULL);
	char *join_offered = crm_itoa(current_join_id);

	crm_xml_add_int(offer, F_CRM_JOIN_ID, current_join_id);
	/* send the welcome */
	crm_debug("join-%d: Sending offer to %s", current_join_id, join_to);

	send_cluster_message(crm_get_peer(0, join_to), crm_msg_crmd, offer, TRUE);
	free_xml(offer);

	g_hash_table_insert(welcomed_nodes, strdup(join_to), join_offered);
	} else {
	crm_info("Peer process on %s is not active (yet?): %.8lx %d",
	join_to, (long)member->processes, g_hash_table_size(crm_peer_cache));
	}

	}

	/* 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, g_hash_table_size(welcomed_nodes));
	}

	/* 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("A new node joined - wait until it contacts us");
	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);
	crm_update_peer_expected(__FUNCTION__, member, CRMD_JOINSTATE_PENDING);

	if (crm_is_peer_active(member) == FALSE) {
	crm_err("%s is not a fully active member of our partition", join_to);
	return;
	}

	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));

	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
	*/
	start_transition(fsa_state);

	/* dont waste time by invoking the pe yet; */
	crm_debug("Waiting on %d outstanding join acks for join-%d",
	g_hash_table_size(welcomed_nodes), 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, XML_ATTR_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_err("join-%d: NACK'ing node %s (ref %s)", join_id, join_from, ref);
	} else {
	crm_debug("join-%d: Welcoming node %s (ref %s)", join_id, join_from, ref);
	}

	/* add them to our list of CRMD_JOINSTATE_MEMBER nodes */
	g_hash_table_insert(integrated_nodes, strdup(join_from), strdup(ack_nack));
	crm_update_peer_expected(__FUNCTION__, join_node, ack_nack);

	crm_debug("%u nodes have been integrated into join-%d",
	g_hash_table_size(integrated_nodes), join_id);

	g_hash_table_remove(welcomed_nodes, join_from);

	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, g_hash_table_size(welcomed_nodes));
	}
	}

	/* 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, g_hash_table_size(integrated_nodes));
	if (g_hash_table_size(integrated_nodes) == 0) {
	/* If we don't even have ourself, start again */
	register_fsa_error_adv(C_FSA_INTERNAL, I_ELECTION_DC, NULL, NULL, __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);
	crmd_fsa_stall(NULL);
	return;
	}

	if (is_set(fsa_input_register, R_HAVE_CIB) == FALSE) {
	/* ask for the agreed best CIB */
	sync_from = strdup(max_generation_from);
	crm_log_xml_debug(max_generation_xml, "Requesting version");
	set_bit(fsa_input_register, R_CIB_ASKED);

	} else {
	/* Send _our_ CIB out to everyone */
	sync_from = strdup(fsa_our_uname);
	}

	crm_info("join-%d: Syncing the CIB from %s to the rest of the cluster",
	current_join_id, sync_from);

	rc = fsa_cib_conn->cmds->sync_from(fsa_cib_conn, sync_from, NULL, cib_quorum_override);

	fsa_cib_conn->cmds->register_callback(fsa_cib_conn, rc, 60, FALSE, sync_from,
	"finalize_sync_callback", 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",
	g_hash_table_size(integrated_nodes), current_join_id);
	g_hash_table_foreach_remove(integrated_nodes, 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));
	}

	free(user_data);
	}

	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 *join_id_s = NULL;
	const char *join_state = NULL;
	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);

	if (safe_str_neq(op, CRM_OP_JOIN_CONFIRM)) {
	crm_debug("Ignoring op=%s message from %s", op, join_from);
	return;
	}

	crm_element_value_int(join_ack->msg, F_CRM_JOIN_ID, &join_id);
	join_id_s = crm_element_value(join_ack->msg, F_CRM_JOIN_ID);

	/* now update them to "member" */

	crm_trace("Processing ack from %s", join_from);

	join_state = (const char *)
	g_hash_table_lookup(finalized_nodes, join_from);

	if (join_state == NULL) {
	crm_err("Join not in progress: ignoring join-%d from %s", join_id, join_from);
	return;

	} else if (safe_str_neq(join_state, CRMD_JOINSTATE_MEMBER)) {
	crm_err("Node %s wasnt invited to join the cluster", join_from);
	g_hash_table_remove(finalized_nodes, join_from);
	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);
	g_hash_table_remove(finalized_nodes, join_from);
	return;
	}

	g_hash_table_remove(finalized_nodes, join_from);

	if (g_hash_table_lookup(confirmed_nodes, join_from) != NULL) {
	crm_err("join-%d: hash already contains confirmation from %s", join_id, join_from);
	}

	g_hash_table_insert(confirmed_nodes, strdup(join_from), strdup(join_id_s));

	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);
	add_cib_op_callback(fsa_cib_conn, call_id, FALSE, NULL, join_update_complete_callback);
	crm_debug("join-%d: Registered callback for LRM update %d", join_id, call_id);
	}

	gboolean
	finalize_join_for(gpointer key, gpointer value, gpointer user_data)
	{
	const char *join_to = NULL;
	const char *join_state = NULL;
	xmlNode *acknak = NULL;
	xmlNode *tmp1 = NULL;
	crm_node_t *join_node = NULL;

	if (key == NULL \|\| value == NULL) {
	return TRUE;
	}

	join_to = (const char *)key;
	join_state = (const char *)value;

	/* 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_to);
	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 TRUE;
	}

	/* 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);

	/* set the ack/nack */
	if (safe_str_eq(join_state, CRMD_JOINSTATE_MEMBER)) {
	crm_debug("join-%d: ACK'ing join request from %s, state %s",
	current_join_id, join_to, join_state);
	crm_xml_add(acknak, CRM_OP_JOIN_ACKNAK, XML_BOOLEAN_TRUE);
	g_hash_table_insert(finalized_nodes,
	strdup(join_to), strdup(CRMD_JOINSTATE_MEMBER));
	crm_update_peer_expected(__FUNCTION__, join_node, CRMD_JOINSTATE_MEMBER);

	} else {
	crm_warn("join-%d: NACK'ing join request from %s, state %s",
	current_join_id, join_to, join_state);

	crm_xml_add(acknak, CRM_OP_JOIN_ACKNAK, XML_BOOLEAN_FALSE);
	crm_update_peer_expected(__FUNCTION__, join_node, CRMD_JOINSTATE_NACK);
	}

	send_cluster_message(crm_get_peer(0, join_to), crm_msg_crmd, acknak, TRUE);
	free_xml(acknak);
	return TRUE;
	}

	void ghash_print_node(gpointer key, gpointer value, gpointer user_data);

	gboolean
	check_join_state(enum crmd_fsa_state cur_state, const char *source)
	{
	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",
	source, saved_ccm_membership_id, crm_peer_seq);
	register_fsa_input_before(C_FSA_INTERNAL, I_NODE_JOIN, NULL);

	} else if (cur_state == S_INTEGRATION) {
	if (g_hash_table_size(welcomed_nodes) == 0) {
	crm_debug("join-%d: Integration of %d peers complete: %s",
	current_join_id, g_hash_table_size(integrated_nodes), 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 (g_hash_table_size(integrated_nodes) == 0
	&& g_hash_table_size(finalized_nodes) == 0) {
	crm_debug("join-%d complete: %s", current_join_id, source);
	register_fsa_input_later(C_FSA_INTERNAL, I_FINALIZED, NULL);

	} else if (g_hash_table_size(integrated_nodes) != 0
	&& g_hash_table_size(finalized_nodes) != 0) {
	char *msg = NULL;

	crm_err("join-%d: Waiting on %d integrated nodes"
	" AND %d finalized nodes",
	current_join_id,
	g_hash_table_size(integrated_nodes), g_hash_table_size(finalized_nodes));
	msg = strdup("Integrated node");
	g_hash_table_foreach(integrated_nodes, ghash_print_node, msg);
	free(msg);

	msg = strdup("Finalized node");
	g_hash_table_foreach(finalized_nodes, ghash_print_node, msg);
	free(msg);

	} else if (g_hash_table_size(integrated_nodes) != 0) {
	crm_debug("join-%d: Still waiting on %d integrated nodes",
	current_join_id, g_hash_table_size(integrated_nodes));

	} else if (g_hash_table_size(finalized_nodes) != 0) {
	crm_debug("join-%d: Still waiting on %d finalized nodes",
	current_join_id, g_hash_table_size(finalized_nodes));
	}
	}

	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);
	crm_update_quorum(crm_have_quorum, TRUE);
	}

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