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491309f4ba
This makes keeping track of events such as failovers
much easier. Note that this is for convenience and is
not a foolproof auditing log.
Sample output:
repmgr_db=# SELECT * from repmgr_test.repl_events ;
node_id | event | successful | event_timestamp | details
---------+--------------------------+------------+-------------------------------+----------------------------------------------------------
1 | master_register | t | 2015-03-06 14:14:08.196636+09 |
2 | standby_clone | t | 2015-03-06 14:14:17.660768+09 | Backup method: pg_basebackup; --force: N
2 | standby_register | t | 2015-03-06 14:14:18.762222+09 |
4 | witness_create | t | 2015-03-06 14:14:22.072815+09 |
3 | standby_clone | t | 2015-03-06 14:14:23.524673+09 | Backup method: pg_basebackup; --force: N
3 | standby_register | t | 2015-03-06 14:14:24.620161+09 |
2 | repmgrd_start | t | 2015-03-06 14:14:29.639096+09 |
3 | repmgrd_start | t | 2015-03-06 14:14:29.641489+09 |
4 | repmgrd_start | t | 2015-03-06 14:14:29.648002+09 |
2 | standby_promote | t | 2015-03-06 14:15:01.956737+09 | Node 2 was successfully be promoted to master
2 | repmgrd_failover_promote | t | 2015-03-06 14:15:01.964771+09 | Node 2 promoted to master; old master 1 marked as failed
3 | repmgrd_failover_follow | t | 2015-03-06 14:15:07.228493+09 | Node 3 now following new upstream node 2
(12 rows)
68 lines
2.7 KiB
C
68 lines
2.7 KiB
C
/*
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* dbutils.h
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* Copyright (c) 2ndQuadrant, 2010-2015
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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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*/
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#ifndef _REPMGR_DBUTILS_H_
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#define _REPMGR_DBUTILS_H_
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#include "strutil.h"
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#include "config.h"
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PGconn *establish_db_connection(const char *conninfo,
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const bool exit_on_error);
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PGconn *establish_db_connection_by_params(const char *keywords[],
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const char *values[],
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const bool exit_on_error);
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bool check_cluster_schema(PGconn *conn);
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int is_standby(PGconn *conn);
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bool is_pgup(PGconn *conn, int timeout);
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int get_primary_node_id(PGconn *conn, char *cluster);
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int get_server_version(PGconn *conn, char *server_version);
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bool get_cluster_size(PGconn *conn, char *size);
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bool get_pg_setting(PGconn *conn, const char *setting, char *output);
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int guc_set(PGconn *conn, const char *parameter, const char *op,
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const char *value);
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int guc_set_typed(PGconn *conn, const char *parameter, const char *op,
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const char *value, const char *datatype);
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PGconn *get_upstream_connection(PGconn *standby_conn, char *cluster,
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int node_id,
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int *upstream_node_id_ptr,
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char *upstream_conninfo_out);
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PGconn *get_master_connection(PGconn *standby_conn, char *cluster,
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int *master_id, char *master_conninfo_out);
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int wait_connection_availability(PGconn *conn, long long timeout);
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bool cancel_query(PGconn *conn, int timeout);
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char *get_repmgr_schema(void);
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char *get_repmgr_schema_quoted(PGconn *conn);
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bool create_replication_slot(PGconn *conn, char *slot_name);
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bool start_backup(PGconn *conn, char *first_wal_segment);
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bool stop_backup(PGconn *conn, char *last_wal_segment);
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bool set_config_bool(PGconn *conn, const char *config_param, bool state);
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bool copy_configuration(PGconn *masterconn, PGconn *witnessconn, char *cluster_name);
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bool create_node_record(PGconn *conn, char *action, int node, char *type, int upstream_node, char *cluster_name, char *node_name, char *conninfo, int priority, char *slot_name);
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bool delete_node_record(PGconn *conn, int node, char *action);
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bool create_event_record(PGconn *conn, int node_id, char *event, bool successful, char *details);
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#endif
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