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"standby switchover": check remote data directory configuration

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The switchover will fail if the data_directory parameter in repmgr.conf
on the remote node (demotion candidate) is incorrectly configured.
We use the previously added "repmgr node check --data-directory-config
to verify this, and abort early if an issue is discovered.

Implements GitHub #523.
This commit is contained in:
Ian Barwick
2019-01-16 15:56:45 +09:00
parent 0b3a310802
commit 8881b69c06
3 changed files with 122 additions and 3 deletions
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11
doc/appendix-release-notes.sgml
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@@ -53,7 +53,16 @@
<listitem>
<para>
<link linkend="repmgr-node-check"><command>repmgr node check --data-directory-config</command></link>
option added; this is to confirm &repmgr; is correctly configured.
option added; this is to confirm &repmgr; is correctly configured. GitHub #523.
</para>
</listitem>
<listitem>
<para>
Add check <link linkend="repmgr-standby-switchover"><command>repmgr standby switchover</command></link>
to ensure the data directory on the demotion candidate is configured correctly in <filename>repmgr.conf</filename>.
This is to ensure that &repmgr;, when remotely executed on the demotion candidate, can correctly verify
that PostgreSQL on the demotion candidate was shut down cleanly. GitHub #523.
</para>
</listitem>