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standby clone: don't error out if unable to determine cluster size

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The cluster size check is purely informative, and is not in any way
essential for the standby clone operation. As it's possible the query
may fail if the repmgr user does not have sufficient privileges to
query all databases in the cluster, we can simply ignore any failure.

Note that the code comment indicated the query also served to sanity-
check that queries can actually be executed. While this was the case
historically, the preceding server version check now serves the same
purpose and will not have the same risk of failure due to missing
permissions.
This commit is contained in:
Ian Barwick
2022-05-10 15:02:24 +09:00
parent 2756d6fd94
commit d9d60fa420
4 changed files with 35 additions and 16 deletions
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27
doc/appendix-release-notes.xml
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@@ -14,10 +14,35 @@
<para>
See also: <xref linkend="upgrading-repmgr"/>
</para>
<sect1 id="release-5.3.2">
<title id="release-current">Release 5.3.2</title>
<para><emphasis>??? ??? ???, 2022</emphasis></para>
<para>
&repmgr; 5.3.2 is a minor release.
</para>
<sect2>
<title>Bug fixes</title>
<para>
<itemizedlist>
<listitem>
<para>
<command><link linkend="repmgr-standby-clone">repmgr standby clone</link></command>:
don't treat inability to determine the cluster size as a fatal error.
</para>
<para>
The cluster size is displayed for informational purposes and is not essential
for execution of the clone operation. As the &repmgr; user may not have permissions
for all databases in the cluster, ignore the cluster size query if it fails.
</para>
</listitem>
</itemizedlist>
</para>
</sect2>
</sect1>
<!-- remember to update the release date in ../repmgr_version.h.in -->
<sect1 id="release-5.3.1">
<title id="release-current">Release 5.3.1</title>
<title>Release 5.3.1</title>
<para><emphasis>Tue 15 February, 2022</emphasis></para>
<para>
&repmgr; 5.3.1 is a minor release.