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Although the witness server will resync the repl_nodes table following a failover, other operations (e.g. removing or cloning a standby) were previously not reflected in the witness server's copy of this table. As a short-term workaround, automatically resync the table at regular intervals (defined by the configuration file parameter "witness_repl_nodes_sync_interval_secs", default 30 seconds).
152 lines
5.2 KiB
Plaintext
152 lines
5.2 KiB
Plaintext
###################################################
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# Replication Manager sample configuration file
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###################################################
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# Some configuration items will be set with a default value; this
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# is noted for each item. Where no default value is shown, the
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# parameter will be treated as empty or false.
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# Required configuration items
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# ============================
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#
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# repmgr and repmgrd require these items to be configured:
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# Cluster name - this will be used by repmgr to generate its internal
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# schema (pattern: "repmgr_{cluster}"); while this name will be quoted
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# to preserve case, we recommend using lower case and avoiding whitespace
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# to facilitate easier querying of the repmgr views and tables.
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cluster=example_cluster
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# Node ID and name
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# (Note: we recommend to avoid naming nodes after their initial
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# replication funcion, as this will cause confusion when e.g.
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# "standby2" is promoted to primary)
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node=2 # a unique integer
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node_name=node2 # an arbitrary (but unique) string; we recommend using
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# the server's hostname or another identifier unambiguously
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# associated with the server to avoid confusion
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# Database connection information as a conninfo string
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# This must be accessible to all servers in the cluster; for details see:
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# http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
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conninfo='host=192.168.204.104 dbname=repmgr_db user=repmgr_usr'
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# Optional configuration items
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# ============================
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# Replication settings
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# ---------------------
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# when using cascading replication and a standby is to be connected to an
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# upstream standby, specify that node's ID with 'upstream_node'. The node
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# must exist before the new standby can be registered. If a standby is
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# to connect directly to a primary node, this parameter is not required.
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upstream_node=1
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# use physical replication slots - PostgreSQL 9.4 and later only
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# (default: 0)
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use_replication_slots=0
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# NOTE: 'max_replication_slots' should be configured for at least the
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# number of standbys which will connect to the primary.
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# Logging and monitoring settings
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# -------------------------------
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# Log level: possible values are DEBUG, INFO, NOTICE, WARNING, ERR, ALERT, CRIT or EMERG
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# (default: NOTICE)
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loglevel=NOTICE
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# Logging facility: possible values are STDERR or - for Syslog integration - one of LOCAL0, LOCAL1, ..., LOCAL7, USER
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# (default: STDERR)
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logfacility=STDERR
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# stderr can be redirected to an arbitrary file:
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#
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logfile='/var/log/repmgr/repmgr.log'
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# event notifications can be passed to an arbitrary external program
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# together with the following parameters:
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#
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# %n - node ID
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# %e - event type
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# %s - success (1 or 0)
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# %t - timestamp
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# %d - details
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#
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# the values provided for "%t" and "%d" will probably contain spaces,
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# so should be quoted in the provided command configuration, e.g.:
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#
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event_notification_command='/path/to/some/script %n %e %s "%t" "%d"'
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# By default, all notifications will be passed; the notification types
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# can be filtered to explicitly named ones:
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#
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event_notifications=master_register,standby_register,witness_create
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# Environment/command settings
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# ----------------------------
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# path to PostgreSQL binary directory (location of pg_ctl, pg_basebackup etc.)
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# (if not provided, defaults to system $PATH)
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pg_bindir=/usr/bin/
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# external command options
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rsync_options=--archive --checksum --compress --progress --rsh="ssh -o \"StrictHostKeyChecking no\""
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ssh_options=-o "StrictHostKeyChecking no"
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# external command arguments. Values shown are examples.
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pg_ctl_options='-s'
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pg_basebackup_options='--xlog-method=s'
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# Standby clone settings
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# ----------------------
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#
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# These settings apply when cloning a standby (`repmgr standby clone`).
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# Tablespaces can be remapped from one file system location to another:
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#
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# tablespace_mapping=/path/to/original/tablespace=/path/to/new/tablespace
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# Failover settings (repmgrd)
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# ---------------------------
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#
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# These settings are only applied when repmgrd is running. Values shown
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# are defaults.
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# Number of seconds to wait for a response from the primary server before
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# deciding it has failed.
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master_response_timeout=60
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# Number of attempts at what interval (in seconds) to try and
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# connect to a server to establish its status (e.g. master
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# during failover)
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reconnect_attempts=6
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reconnect_interval=10
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# Autofailover options
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failover=manual # one of 'automatic', 'manual'
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# (default: manual)
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priority=100 # a value of zero or less prevents the node being promoted to primary
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# (default: 100)
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promote_command='repmgr standby promote -f /path/to/repmgr.conf'
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follow_command='repmgr standby follow -f /path/to/repmgr.conf -W'
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# monitoring interval in seconds; default is 2
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monitor_interval_secs=2
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# change wait time for primary; before we bail out and exit when the primary
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# disappears, we wait 'reconnect_attempts' * 'retry_promote_interval_secs'
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# seconds; by default this would be half an hour, as 'retry_promote_interval_secs'
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# default value is 300)
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retry_promote_interval_secs=300
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# Number of seconds after which the witness server resyncs the repl_nodes table
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witness_repl_nodes_sync_interval_secs=15
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