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Log SSH errors when running "repmgr cluster (matrix|crosscheck)"

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Previously repmgr would abort with an unhelpful message about being
unable to parse CSV output.

With this commit, it will continue running, and display a list of
inaccessible nodes as an addendum to the main output (unless --csv
or --terse options are specified).

Addresses GitHub #246.
This commit is contained in:
Ian Barwick
2018-10-02 12:42:39 +09:00
parent 455a0bd93f
commit 7ab81e10de
5 changed files with 185 additions and 48 deletions
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21
doc/appendix-release-notes.sgml
View File

@@ -71,6 +71,27 @@
</para>
</listitem>
<listitem>
<para>
When running
<command><link linkend="repmgr-cluster-matrix">repmgr cluster matrix</link></command> and
<command><link linkend="repmgr-cluster-crosscheck">repmgr cluster crosscheck</link></command>,
&repmgr; will report nodes unreachable via SSH, and emit return code <literal>ERR_BAD_SSH</literal>.
(GitHub #246).
</para>
<note>
<para>
Users relying on
<command><link linkend="repmgr-cluster-crosscheck">repmgr cluster crosscheck</link></command>
to return a non-zero return code as a way of detecting connectivity errors should be aware
that <literal>ERR_BAD_SSH</literal> will be returned if there is an SSH connection error
from the node where the command is executed, even if the command is able to establish
that PostgreSQL connectivity is fine. Therefore the exact return code should be checked
to determine what kind of connectivity error has been detected.
</para>
</note>
</listitem>
</itemizedlist>
</para>
</sect2>