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-rw-r--r--doc/src/sgml/monitoring.sgml4
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 356a2f0c4c4..e930731b162 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1018,6 +1018,10 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry>Waiting to read or update old snapshot control information.</entry>
</row>
<row>
+ <entry><literal>CLogTruncationLock</></entry>
+ <entry>Waiting to truncate the transaction log or waiting for transaction log truncation to finish.</entry>
+ </row>
+ <row>
<entry><literal>clog</></entry>
<entry>Waiting for I/O on a clog (transaction status) buffer.</entry>
</row>