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repmgr/doc/repmgr-standby-switchover.sgml
2017-10-05 11:48:21 +09:00

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<chapter id="repmgr-standby-switchover" xreflabel="repmgr standby switchover">
<indexterm>
<primary>repmgr standby switchover</primary>
</indexterm>
<title>repmgr standby switchover</title>
<para>
Promotes a standby to primary and demotes the existing primary to a standby.
This command must be run on the standby to be promoted, and requires a
passwordless SSH connection to the current primary.
</para>
<para>
If other standbys are connected to the demotion candidate, &repmgr; can instruct
these to follow the new primary if the option <literal>--siblings-follow</literal>
is specified.
</para>
<para>
Execute with the <literal>--dry-run</literal> option to test the switchover as far as
possible without actually changing the status of either node.
</para>
<para>
<command>repmgrd</command> should not be active on any nodes while a switchover is being
executed. This restriction may be lifted in a later version.
</para>
<para>
For more details see the section <xref linkend="performing-switchover">.
</para>
</chapter>