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De-overload configuration file parameter "standby_reconnect_timeout"

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Currently the (very generic sounding) "standby_reconnect_timeout" configuration
file parameter is used in several different contexts and it would be useful
to have more granular control over the different timeouts it's used to configure.

This patch introduces "node_rejoin_timeout", used in place of "standby_reconnect_timeout"
(which wasn't documented) when "repmgr node rejoin" is executed, to determine
how long to wait for the node to rejoin the replication cluster.

Additionally "repmgrd_standby_startup_timeout" is introduced as a timeout for
failover situations, when repmgrd executes "repmgr standby follow" to follow
a new primary, and waits for the standby to restart and become available
for connections.

"standby_reconnect_timeout" is now only relevant for "repmgr standby switchover".

Implements GitHub #454.
This commit is contained in:
Ian Barwick
2018-06-28 17:53:17 +09:00
parent 080a29c33b
commit b2081dca52
8 changed files with 112 additions and 19 deletions
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29
repmgr.conf.sample
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@@ -207,7 +207,7 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#------------------------------------------------------------------------------
# Standby follow settings
# "standby follow" settings
#------------------------------------------------------------------------------
# These settings apply when instructing a standby to follow the new primary
@@ -219,6 +219,28 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# for the standby to connect to the primary
#------------------------------------------------------------------------------
# "standby switchover" settings
#------------------------------------------------------------------------------
# These settings apply when switching roles between a primary and a standby
# ("repmgr standby switchover").
#standby_reconnect_timeout=60 # The max length of time (in seconds) to wait
# for the demoted standby to reconnect to the promoted
# primary (note: this value should be equal to or greater
# than that set for "node_rejoin_timeout")
#------------------------------------------------------------------------------
# "node rejoin" settings
#------------------------------------------------------------------------------
# These settings apply when reintegrating a node into a replication cluster
# with "repmgrd_node_rejoin"
#node_rejoin_timeout=60 # The maximum length of time (in seconds) to wait for
# the node to reconnect to the replication cluster
#------------------------------------------------------------------------------
# Barman options
#------------------------------------------------------------------------------
@@ -265,8 +287,9 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
#primary_notification_timeout=60 # Interval (in seconds) which repmgrd on a standby
# will wait for a notification from the new primary,
# before falling back to degraded monitoring
#standby_reconnect_timeout=60 # Interval (in seconds) which repmgrd on a standby will wait
# to reconnect to the local node after executing "follow_command"
#repmgrd_standby_startup_timeout=60 # Interval (in seconds) which repmgrd on a standby will wait
# for the the local node to restart and become ready to accept connections after
# executing "follow_command" (defaults to the value set in "standby_reconnect_timeout")
#monitoring_history=no # Whether to write monitoring data to the "montoring_history" table
#monitor_interval_secs=2 # Interval (in seconds) at which to write monitoring data