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Restrict "node_name" to maximum 63 characters

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In "recovery.conf", the configuration parameter "node_name" is used
as the "application_name" value, which will be truncated by PostgreSQL
to 63 characters (NAMEDATALEN - 1).

repmgr sometimes needs to be able to extract the application name from
pg_stat_replication to determine if a node is connected (e.g. when
executing "repmgr standby register"), so the comparison will fail
if "node_name" exceeds 63 characters.
This commit is contained in:
Ian Barwick
2019-03-28 10:37:57 +09:00
parent 73ad689390
commit ba1f05ece9
11 changed files with 42 additions and 22 deletions
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3
doc/configuration-file-required-settings.sgml
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@@ -39,6 +39,9 @@
called <varname>standby1</varname> (for example), things will be confusing
to say the least.
</para>
<para>
Maximum length is 63 characters.
</para>
</listitem>
</varlistentry>