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repmgr/doc/repmgr-witness-unregister.sgml
2017-11-20 15:29:28 +09:00

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<refentry id="repmgr-witness-unregister" xreflabel="repmgr witness unregister">
<indexterm>
<primary>repmgr witness unregister</primary>
</indexterm>
<refmeta>
<refentrytitle>repmgr witness unregister</refentrytitle>
</refmeta>
<refnamediv>
<refname>repmgr witness unregister</refname>
<refpurpose>remove a witness node's information to the &repmgr; metadata</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<para>
<command>repmgr witness unregister</command> removes a witness server's node
record from the &repmgr; metadata.
</para>
<para>
The node does not have to be running to be unregistered, however if this is the
case then connection information for the primary server must be provided.
</para>
<para>
Execute with the <literal>--dry-run</literal> option to check what would happen
without actually registering the witness server.
</para>
</refsect1>
<refsect1>
<title>Examples</title>
<para>
Unregistering a running witness node:
<programlisting>
$ repmgr -f /etc/repmgr.conf witness unregister
INFO: connecting to witness node "node3" (ID: 3)
INFO: unregistering witness node 3
INFO: witness unregistration complete
DETAIL: witness node with id 3 (conninfo: host=node3 dbname=repmgr user=repmgr port=5499) successfully unregistered</programlisting>
</para>
<para>
Unregistering a non-running witness node:
<programlisting>
$ repmgr -f /etc/repmgr.conf witness unregister -h localhost -p 5501 -F
INFO: connecting to witness node "node3" (ID: 3)
NOTICE: unable to connect to witness node "node3" (ID: 3), removing node record on cluster primary only
INFO: unregistering witness node 3
INFO: witness unregistration complete
DETAIL: witness node with id 3 (conninfo: host=node3 dbname=repmgr user=repmgr port=5499) successfully unregistered</programlisting>
</para>
</refsect1>
<refsect1>
<title>Notes</title>
<para>
This command will not make any changes to the witness node itself and will neither
remove any data from the witness database nor stop the PostgreSQL instance.
</para>
<para>
A witness node which has been unregistered, can be re-registered with
<link linkend="repmgr-witness-register">repmgr witness register --force</link>.
</para>
</refsect1>
</refentry>