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doc: document "failover_validation_command"

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Ian Barwick
2019-03-11 15:02:33 +09:00
parent 2a8f8d8400
commit db87ff46fd
1 changed files with 48 additions and 4 deletions
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52
doc/repmgrd-configuration.sgml
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@@ -198,6 +198,20 @@
</para>
<variablelist>
<varlistentry>
<indexterm>
<primary>monitor_interval_secs</primary>
</indexterm>
<term><option>monitor_interval_secs</option></term>
<listitem>
<para>
The interval (in seconds, default: <literal>2</literal>) to check the availability of the upstream node.
</para>
</listitem>
</varlistentry>
<varlistentry>
<indexterm>
@@ -229,6 +243,38 @@
</listitem>
</varlistentry>
<varlistentry>
<indexterm>
<primary>failover_validation_command</primary>
</indexterm>
<term><option>failover_validation_command</option></term>
<listitem>
<para>
User-defined script to execute for an external mechanism to validate the failover
decision made by <application>repmgrd</application>.
</para>
<note>
<para>
This optiom <emphasis>must</emphasis> be identically configurered
on all nodes.
</para>
</note>
<para>
One or both of the following parameter placeholders
should be provided, which will be replaced by repmgrd with the appropriate
value:
<itemizedlist spacing="compact" mark="bullet">
<listitem>
<simpara><literal>%n</literal>: node ID</simpara>
</listitem>
<listitem>
<simpara><literal>%a</literal>: node name</simpara>
</listitem>
</itemizedlist>
</para>
</listitem>
</varlistentry>
</variablelist>
<para>
@@ -310,10 +356,8 @@ repmgrd_service_stop_command='sudo systemctl repmgr11 stop'
in <filename>repmgr.conf</filename>.
</para>
<para>
The default monitoring interval is 2 seconds; this value can be explicitly set using:
<programlisting>
monitor_interval_secs=&lt;seconds&gt;</programlisting>
in <filename>repmgr.conf</filename>.
Monitoring data is written at the interval defined by
the option <option>monitor_interval_secs</option> (see above).
</para>
<para>
For more details on monitoring, see <xref linkend="repmgrd-monitoring">.