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37892afcfc
This determines whether repmgrd should continue with a failover if one or more nodes report they can still see the standby.
330 lines
8.8 KiB
C
330 lines
8.8 KiB
C
/*
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* configfile.h
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*
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* Copyright (c) 2ndQuadrant, 2010-2019
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*
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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_CONFIGFILE_H_
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#define _REPMGR_CONFIGFILE_H_
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#include <getopt_long.h>
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#define CONFIG_FILE_NAME "repmgr.conf"
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#define MAXLINELENGTH 4096
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/* magic number for use in t_recovery_conf */
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#define TARGET_TIMELINE_LATEST 0
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extern bool config_file_found;
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extern char config_file_path[MAXPGPATH];
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typedef enum
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{
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FAILOVER_MANUAL,
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FAILOVER_AUTOMATIC
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} failover_mode_opt;
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typedef enum
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{
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CHECK_PING,
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CHECK_CONNECTION
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} ConnectionCheckType;
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typedef struct EventNotificationListCell
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{
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struct EventNotificationListCell *next;
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char event_type[MAXLEN];
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} EventNotificationListCell;
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typedef struct EventNotificationList
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{
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EventNotificationListCell *head;
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EventNotificationListCell *tail;
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} EventNotificationList;
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typedef struct TablespaceListCell
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{
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struct TablespaceListCell *next;
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char old_dir[MAXPGPATH];
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char new_dir[MAXPGPATH];
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} TablespaceListCell;
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typedef struct TablespaceList
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{
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TablespaceListCell *head;
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TablespaceListCell *tail;
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} TablespaceList;
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typedef struct
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{
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/* node information */
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int node_id;
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char node_name[MAXLEN];
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char conninfo[MAXLEN];
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char replication_user[NAMEDATALEN];
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char data_directory[MAXPGPATH];
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char config_directory[MAXPGPATH];
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char pg_bindir[MAXPGPATH];
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char repmgr_bindir[MAXPGPATH];
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int replication_type;
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/* log settings */
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char log_level[MAXLEN];
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char log_facility[MAXLEN];
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char log_file[MAXLEN];
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int log_status_interval;
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/* standby clone settings */
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bool use_replication_slots;
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char pg_basebackup_options[MAXLEN];
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char restore_command[MAXLEN];
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TablespaceList tablespace_mapping;
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char recovery_min_apply_delay[MAXLEN];
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bool recovery_min_apply_delay_provided;
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char archive_cleanup_command[MAXLEN];
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bool use_primary_conninfo_password;
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char passfile[MAXPGPATH];
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/* standby promote settings */
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int promote_check_timeout;
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int promote_check_interval;
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/* standby follow settings */
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int primary_follow_timeout;
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int standby_follow_timeout;
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/* standby switchover settings */
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int shutdown_check_timeout;
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int standby_reconnect_timeout;
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int wal_receive_check_timeout;
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/* node rejoin settings */
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int node_rejoin_timeout;
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/* node check settings */
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int archive_ready_warning;
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int archive_ready_critical;
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int replication_lag_warning;
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int replication_lag_critical;
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/* witness settings */
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int witness_sync_interval;
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/* repmgrd settings */
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failover_mode_opt failover;
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char location[MAXLEN];
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int priority;
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char promote_command[MAXLEN];
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char follow_command[MAXLEN];
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int monitor_interval_secs;
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int reconnect_attempts;
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int reconnect_interval;
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bool monitoring_history;
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int degraded_monitoring_timeout;
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int async_query_timeout;
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int primary_notification_timeout;
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int repmgrd_standby_startup_timeout;
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char repmgrd_pid_file[MAXPGPATH];
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bool standby_disconnect_on_failover;
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int sibling_nodes_disconnect_timeout;
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ConnectionCheckType connection_check_type;
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bool primary_visibility_consensus;
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/* BDR settings */
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bool bdr_local_monitoring_only;
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bool bdr_recovery_timeout;
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/* service settings */
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char pg_ctl_options[MAXLEN];
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char service_start_command[MAXPGPATH];
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char service_stop_command[MAXPGPATH];
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char service_restart_command[MAXPGPATH];
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char service_reload_command[MAXPGPATH];
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char service_promote_command[MAXPGPATH];
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/* repmgrd service settings */
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char repmgrd_service_start_command[MAXPGPATH];
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char repmgrd_service_stop_command[MAXPGPATH];
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/* event notification settings */
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char event_notification_command[MAXPGPATH];
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char event_notifications_orig[MAXLEN];
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EventNotificationList event_notifications;
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/* barman settings */
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char barman_host[MAXLEN];
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char barman_server[MAXLEN];
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char barman_config[MAXLEN];
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/* rsync/ssh settings */
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char rsync_options[MAXLEN];
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char ssh_options[MAXLEN];
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/* undocumented test settings */
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int promote_delay;
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} t_configuration_options;
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/*
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* The following will initialize the structure with a minimal set of options;
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* actual defaults are set in parse_config() before parsing the configuration file
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*/
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#define T_CONFIGURATION_OPTIONS_INITIALIZER { \
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/* node information */ \
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UNKNOWN_NODE_ID, "", "", "", "", "", "", "", REPLICATION_TYPE_PHYSICAL, \
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/* log settings */ \
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"", "", "", DEFAULT_LOG_STATUS_INTERVAL, \
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/* standby clone settings */ \
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false, "", "", { NULL, NULL }, "", false, "", false, "", \
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/* standby promote settings */ \
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DEFAULT_PROMOTE_CHECK_TIMEOUT, DEFAULT_PROMOTE_CHECK_INTERVAL, \
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/* standby follow settings */ \
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DEFAULT_PRIMARY_FOLLOW_TIMEOUT, \
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DEFAULT_STANDBY_FOLLOW_TIMEOUT, \
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/* standby switchover settings */ \
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DEFAULT_SHUTDOWN_CHECK_TIMEOUT, \
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DEFAULT_STANDBY_RECONNECT_TIMEOUT, \
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DEFAULT_WAL_RECEIVE_CHECK_TIMEOUT, \
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/* node rejoin settings */ \
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DEFAULT_NODE_REJOIN_TIMEOUT, \
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/* node check settings */ \
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DEFAULT_ARCHIVE_READY_WARNING, DEFAULT_ARCHIVE_READY_CRITICAL, \
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DEFAULT_REPLICATION_LAG_WARNING, DEFAULT_REPLICATION_LAG_CRITICAL, \
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/* witness settings */ \
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DEFAULT_WITNESS_SYNC_INTERVAL, \
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/* repmgrd settings */ \
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FAILOVER_MANUAL, DEFAULT_LOCATION, DEFAULT_PRIORITY, "", "", \
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DEFAULT_MONITORING_INTERVAL, \
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DEFAULT_RECONNECTION_ATTEMPTS, \
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DEFAULT_RECONNECTION_INTERVAL, \
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false, -1, \
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DEFAULT_ASYNC_QUERY_TIMEOUT, \
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DEFAULT_PRIMARY_NOTIFICATION_TIMEOUT, \
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-1, "", false, DEFAULT_SIBLING_NODES_DISCONNECT_TIMEOUT, CHECK_PING, true, \
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/* BDR settings */ \
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false, DEFAULT_BDR_RECOVERY_TIMEOUT, \
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/* service settings */ \
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"", "", "", "", "", "", \
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/* repmgrd service settings */ \
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"", "", \
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/* event notification settings */ \
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"", "", { NULL, NULL }, \
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/* barman settings */ \
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"", "", "", \
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/* rsync/ssh settings */ \
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"", "", \
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/* undocumented test settings */ \
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0 \
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}
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typedef struct
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{
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char slot[MAXLEN];
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char xlog_method[MAXLEN];
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bool no_slot; /* from PostgreSQL 10 */
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} t_basebackup_options;
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#define T_BASEBACKUP_OPTIONS_INITIALIZER { "", "", false }
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typedef enum
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{
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RTA_PAUSE,
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RTA_PROMOTE,
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RTA_SHUTDOWN
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} RecoveryTargetAction;
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/*
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* Struct to hold the contents of a parsed recovery.conf file.
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* We're only really interested in those related to streaming
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* replication (and also "restore_command") but include the
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* others for completeness.
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*
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* NOTE: "recovery_target" not included as it can only have
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* one value, "immediate".
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*/
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typedef struct
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{
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/* archive recovery settings */
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char restore_command[MAXLEN];
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char archive_cleanup_command[MAXLEN];
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char recovery_end_command[MAXLEN];
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/* recovery target settings */
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char recovery_target_name[MAXLEN];
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char recovery_target_time[MAXLEN];
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char recovery_target_xid[MAXLEN];
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bool recovery_target_inclusive;
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int recovery_target_timeline;
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RecoveryTargetAction recovery_target_action; /* default: RTA_PAUSE */
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/* standby server settings */
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bool standby_mode;
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char primary_conninfo[MAXLEN];
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char primary_slot_name[MAXLEN];
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char trigger_file[MAXLEN];
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char recovery_min_apply_delay[MAXLEN];
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} t_recovery_conf;
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#define T_RECOVERY_CONF_INITIALIZER { \
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/* archive recovery settings */ \
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"", "", "", \
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/* recovery target settings */ \
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"", "", "", true, \
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TARGET_TIMELINE_LATEST, \
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RTA_PAUSE, \
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/* standby server settings */ \
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true, \
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"", "", "", "" \
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}
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#include "dbutils.h"
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void set_progname(const char *argv0);
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const char *progname(void);
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void load_config(const char *config_file, bool verbose, bool terse, t_configuration_options *options, char *argv0);
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bool reload_config(t_configuration_options *orig_options, t_server_type server_type);
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bool parse_recovery_conf(const char *data_dir, t_recovery_conf *conf);
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bool parse_bool(const char *s,
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const char *config_item,
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ItemList *error_list);
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int repmgr_atoi(const char *s,
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const char *config_item,
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ItemList *error_list,
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int minval);
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bool parse_pg_basebackup_options(const char *pg_basebackup_options,
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t_basebackup_options *backup_options,
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int server_version_num,
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ItemList *error_list);
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int parse_output_to_argv(const char *string, char ***argv_array);
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void free_parsed_argv(char ***argv_array);
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/* called by repmgr-client and repmgrd */
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void exit_with_cli_errors(ItemList *error_list, const char *repmgr_command);
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void print_item_list(ItemList *item_list);
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#endif /* _REPMGR_CONFIGFILE_H_ */
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