From: Amit Kapila <akapila@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: Add seq_sync_error_count to subscription statistics.
Date: Fri, 07 Nov 2025 08:16:00 +0000
Message-ID: <E1vHHdY-005QEe-0n@gemulon.postgresql.org> (raw)
Add seq_sync_error_count to subscription statistics.
This commit adds a new column, seq_sync_error_count, to the
pg_stat_subscription_stats view. This counter tracks the number of errors
encountered by the sequence synchronization worker during operation.
Since a single worker handles the synchronization of all sequences, this
value may reflect errors from multiple sequences. This addition improves
observability of sequence synchronization behavior and helps monitor
potential issues during replication.
Author: Vignesh C <vignesh21@gmail.com>
Reviewed-by: shveta malik <shveta.malik@gmail.com>
Reviewed-by: Peter Smith <smithpb2250@gmail.com>
Reviewed-by: Amit Kapila <amit.kapila16@gmail.com>
Discussion: https://postgr.es/m/CAA4eK1LC+KJiAkSrpE_NwvNdidw9F2os7GERUeSxSKv71gXysQ@mail.gmail.com
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/f6a4c498dcf6f05b4ef79051e95de12cc48bdeee
Modified Files
--------------
doc/src/sgml/monitoring.sgml | 11 +++
src/backend/catalog/system_views.sql | 1 +
src/backend/replication/logical/sequencesync.c | 3 +
src/backend/replication/logical/tablesync.c | 3 +-
src/backend/replication/logical/worker.c | 18 ++---
src/backend/utils/activity/pgstat_subscription.c | 27 +++++--
src/backend/utils/adt/pgstatfuncs.c | 27 ++++---
src/include/catalog/catversion.h | 2 +-
src/include/catalog/pg_proc.dat | 6 +-
src/include/pgstat.h | 6 +-
src/test/regress/expected/rules.out | 3 +-
src/test/subscription/t/026_stats.pl | 98 +++++++++++++++++-------
12 files changed, 143 insertions(+), 62 deletions(-)
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To: pgsql-committers@postgresql.org
Cc: akapila@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: Add seq_sync_error_count to subscription statistics.
In-Reply-To: <E1vHHdY-005QEe-0n@gemulon.postgresql.org>
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