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https://github.com/EnterpriseDB/repmgr.git
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This functionality enables repmgrd (when running on the primary) to monitor connected child nodes. It will log connections and disconnections and generate events. Additionally, repmgrd can execute a custom script if the number of connected child nodes falls below a configurable threshold. This script can be used e.g. to "fence" the primary following a failover situation where a new primary has been promoted and all standbys are now child nodes of that primary.
118 lines
3.8 KiB
C
118 lines
3.8 KiB
C
/*
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* repmgr.h
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* Copyright (c) 2ndQuadrant, 2010-2019
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _REPMGR_CONFIG_H
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#define _REPMGR_CONFIG_H
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#include <config.h>
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#endif
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#ifndef _REPMGR_H_
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#define _REPMGR_H_
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <libpq-fe.h>
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#include <postgres_fe.h>
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#include <pqexpbuffer.h>
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#include "repmgr_version.h"
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#include "errcode.h"
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#include "strutil.h"
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#include "configfile.h"
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#include "dbutils.h"
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#include "log.h"
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#include "sysutils.h"
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#define MIN_SUPPORTED_VERSION "9.3"
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#define MIN_SUPPORTED_VERSION_NUM 90300
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#define REPLICATION_TYPE_PHYSICAL 1
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#define REPLICATION_TYPE_BDR 2
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#define UNKNOWN_SERVER_VERSION_NUM -1
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#define UNKNOWN_BDR_VERSION_NUM -1
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#define UNKNOWN_TIMELINE_ID -1
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#define UNKNOWN_SYSTEM_IDENTIFIER 0
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#define UNKNOWN_PID -1
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#define UNKNOWN_REPLICATION_LAG -1
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#define NODE_NOT_FOUND -1
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#define NO_UPSTREAM_NODE -1
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#define UNKNOWN_NODE_ID -1
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#define MIN_NODE_ID 1
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#define ELECTION_RERUN_NOTIFICATION -2
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#define VOTING_TERM_NOT_SET -1
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#define ARCHIVE_STATUS_DIR_ERROR -1
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#define NO_DEGRADED_MONITORING_ELAPSED -1
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#define BDR2_REPLICATION_SET_NAME "repmgr"
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/*
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* various default values - ensure repmgr.conf.sample is update
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* if any of these are changed
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*/
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#define DEFAULT_LOCATION "default"
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#define DEFAULT_PRIORITY 100
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#define DEFAULT_RECONNECTION_ATTEMPTS 6 /* seconds */
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#define DEFAULT_RECONNECTION_INTERVAL 10 /* seconds */
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#define DEFAULT_MONITORING_INTERVAL 2 /* seconds */
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#define DEFAULT_ASYNC_QUERY_TIMEOUT 60 /* seconds */
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#define DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT 60 /* seconds */
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#define DEFAULT_PRIMARY_FOLLOW_TIMEOUT 60 /* seconds */
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#define DEFAULT_STANDBY_FOLLOW_TIMEOUT 30 /* seconds */
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#define DEFAULT_BDR_RECOVERY_TIMEOUT 30 /* seconds */
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#define DEFAULT_ARCHIVE_READY_WARNING 16 /* WAL files */
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#define DEFAULT_ARCHIVE_READY_CRITICAL 128 /* WAL files */
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#define DEFAULT_REPLICATION_LAG_WARNING 300 /* seconds */
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#define DEFAULT_REPLICATION_LAG_CRITICAL 600 /* seconds */
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#define DEFAULT_WITNESS_SYNC_INTERVAL 15 /* seconds */
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#define DEFAULT_WAIT_START 30 /* seconds */
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#define DEFAULT_PROMOTE_CHECK_TIMEOUT 60 /* seconds */
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#define DEFAULT_PROMOTE_CHECK_INTERVAL 1 /* seconds */
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#define DEFAULT_SHUTDOWN_CHECK_TIMEOUT 60 /* seconds */
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#define DEFAULT_STANDBY_RECONNECT_TIMEOUT 60 /* seconds */
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#define DEFAULT_NODE_REJOIN_TIMEOUT 60 /* seconds */
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#define DEFAULT_WAL_RECEIVE_CHECK_TIMEOUT 30 /* seconds */
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#define DEFAULT_SIBLING_NODES_DISCONNECT_TIMEOUT 30 /* seconds */
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#define DEFAULT_ELECTION_RERUN_INTERVAL 15 /* seconds */
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#define DEFAULT_CHILD_NODES_CHECK_INTERVAL 5 /* seconds */
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#define DEFAULT_CHILD_NODES_DISCONNECT_MIN_COUNT -1
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#define DEFAULT_CHILD_NODES_CONNECTED_MIN_COUNT -1
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#define DEFAULT_CHILD_NODES_DISCONNECT_TIMEOUT 30 /* seconds */
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#define WALRECEIVER_DISABLE_TIMEOUT_VALUE 86400000 /* milliseconds */
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#ifndef RECOVERY_COMMAND_FILE
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#define RECOVERY_COMMAND_FILE "recovery.conf"
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#endif
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#ifndef TABLESPACE_MAP
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#define TABLESPACE_MAP "tablespace_map"
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#endif
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#endif /* _REPMGR_H_ */
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