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repmgrd: add option "connection_check_type"

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This enable selection of the method repmgrd uses to check whether the upstream
node is available. Possible values are:

 - "ping" (default): uses PQping() to check server availability
 - "connection":  executes a query on the connection to check server
   availability (similar to repmgr3.x).
This commit is contained in:
Ian Barwick
2019-03-06 12:07:30 +09:00
parent 4f83111033
commit 63f7ad546e
11 changed files with 150 additions and 23 deletions
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3
repmgr.conf.sample
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@@ -285,6 +285,9 @@ ssh_options='-q -o ConnectTimeout=10' # Options to append to "ssh"
# a value of zero prevents the node being promoted to primary
# (default: 100)
#connection_check_type=ping # How to check availability of the upstream node; valid options:
# 'ping': use PQping() to check if the node is accepting connections
# 'connection': execute a throwaway query on the current connection
#reconnect_attempts=6 # Number of attempts which will be made to reconnect to an unreachable
# primary (or other upstream node)
#reconnect_interval=10 # Interval between attempts to reconnect to an unreachable