Hi All,
monitoring.sgml file has the list of all the wait event names that is
being monitored by pg_stat_activity but as one of the LWLock named
'OldSnapshotTimemapLock' was added recently as the part of git commit
'848ef42b' -->"Add the "snapshot too old" feature", this lwlock
information is currently missing in the monitoring.sgml file. I have
added the necessary information about the same in this file and
attached is the patch. Thanks.
With Regards,
Ashutosh Sharma
EnterpriseDB:http://www.enterprisedb.com
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index b620feb..916ca79 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -969,6 +969,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry>Waiting to read or truncate multixact information.</entry>
</row>
<row>
+ <entry><literal>OldSnapshotTimeMapLock</></entry>
+ <entry>Waiting to read or update old snapshot control
+ information.</entry>
+ </row>
+ <row>
<entry morerows="15"><literal>LWLockTranche</></entry>
<entry><literal>clog</></entry>
<entry>Waiting for I/O on a clog (transaction status) buffer.</entry>
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