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repmgrd: enable election rerun

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If "failover_validation_command" is set, and the command returns an error,
rerun the election.

There is a pause between reruns to avoid "churn"; the length of this pause
is controlled by the configuration parameter "election_rerun_interval".
This commit is contained in:
Ian Barwick
2019-03-12 14:03:59 +09:00
committed by Ian Barwick
parent 99923f5ffc
commit fc397f25f6
6 changed files with 68 additions and 6 deletions
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15
doc/repmgrd-configuration.sgml
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@@ -261,7 +261,7 @@
</note>
<para>
One or both of the following parameter placeholders
should be provided, which will be replaced by repmgrd with the appropriate
should be provided, which will be replaced by repmgrd with the appropriate
value:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
@@ -275,6 +275,19 @@
</listitem>
</varlistentry>
<varlistentry>
<indexterm>
<primary>election_rerun_interval</primary>
</indexterm>
<term><option>election_rerun_interval</option></term>
<listitem>
<para>
If <option>failover_validation_command</option> is set, and the command returns
an error, pause the specified amount of seconds (default: 15) before rerunning the election.
</para>
</listitem>
</varlistentry>
</variablelist>
<para>