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authorMasahiko Sawada <msawada@postgresql.org>2025-10-08 10:05:04 -0700
committerMasahiko Sawada <msawada@postgresql.org>2025-10-08 10:05:04 -0700
commitd3b6183dd988928dd369b4b7d641917e77f1ae4e (patch)
tree021b43628b3e43871984121ba75c4a41b8992720 /doc/src
parent14ad0d7bf2b8d5f26061df7cbdf18cfffcdcb225 (diff)
Add mem_exceeded_count column to pg_stat_replication_slots.
This commit introduces a new column mem_exceeded_count to the pg_stat_replication_slots view. This counter tracks how often the memory used by logical decoding exceeds the logical_decoding_work_mem limit. The new statistic helps users determine whether exceeding the logical_decoding_work_mem limit is a rare occurrences or a frequent issue, information that wasn't available through existing statistics. Bumps catversion. Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Reviewed-by: shveta malik <shveta.malik@gmail.com> Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/978D21E8-9D3B-40EA-A4B1-F87BABE7868C@yesql.se
Diffstat (limited to 'doc/src')
-rw-r--r--doc/src/sgml/monitoring.sgml11
1 files changed, 11 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 789ac16b444..dc4fc29466d 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1622,6 +1622,17 @@ description | Waiting for a newly initialized WAL file to reach durable storage
<row>
<entry role="catalog_table_entry"><para role="column_definition">
+ <structfield>mem_exceeded_count</structfield><type>bigint</type>
+ </para>
+ <para>
+ Number of times the memory used by logical decoding has exceeded
+ <literal>logical_decoding_work_mem</literal>.
+ </para>
+ </entry>
+ </row>
+
+ <row>
+ <entry role="catalog_table_entry"><para role="column_definition">
<structfield>total_txns</structfield> <type>bigint</type>
</para>
<para>