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authorAmit Kapila <akapila@postgresql.org>2025-11-25 06:47:49 +0000
committerAmit Kapila <akapila@postgresql.org>2025-11-25 07:06:02 +0000
commit76b78721ca49c16dfcbfbd2f4f87fcdb2db2bbb6 (patch)
treebf239b845d97ce9385c6d7b03b8ba52e035895c3 /doc
parentc581c9a7ac2af2c75567013f25125bd294d49ff2 (diff)
Add slotsync skip statistics.
This patch adds two new columns to the pg_stat_replication_slots view: slotsync_skip_count - the total number of times a slotsync operation was skipped. slotsync_skip_at - the timestamp of the most recent skip. These additions provide better visibility into replication slot synchronization behavior. A future patch will introduce the slotsync_skip_reason column in pg_replication_slots to capture the reason for skip. Author: Shlok Kyal <shlok.kyal.oss@gmail.com> Reviewed-by: shveta malik <shveta.malik@gmail.com> Reviewed-by: Hayato Kuroda <kuroda.hayato@fujitsu.com> Reviewed-by: Ashutosh Sharma <ashu.coek88@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Discussion: https://postgr.es/m/CAE9k0PkhfKrTEAsGz4DjOhEj1nQ+hbQVfvWUxNacD38ibW3a1g@mail.gmail.com
Diffstat (limited to 'doc')
-rw-r--r--doc/src/sgml/monitoring.sgml24
1 files changed, 24 insertions, 0 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 436ef0e8bd0..dcc8474a7f7 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -1661,6 +1661,30 @@ description | Waiting for a newly initialized WAL file to reach durable storage
<row>
<entry role="catalog_table_entry"><para role="column_definition">
+ <structfield>slotsync_skip_count</structfield><type>bigint</type>
+ </para>
+ <para>
+ Number of times the slot synchronization is skipped. Slot
+ synchronization occur only on standby servers and thus this column has
+ no meaning on the primary server.
+ </para>
+ </entry>
+ </row>
+
+ <row>
+ <entry role="catalog_table_entry"><para role="column_definition">
+ <structfield>slotsync_skip_at</structfield><type>timestamp with time zone</type>
+ </para>
+ <para>
+ Time at which last slot synchronization was skipped. Slot
+ synchronization occur only on standby servers and thus this column has
+ no meaning on the primary server.
+ </para>
+ </entry>
+ </row>
+
+ <row>
+ <entry role="catalog_table_entry"><para role="column_definition">
<structfield>stats_reset</structfield> <type>timestamp with time zone</type>
</para>
<para>