From: Nathan Bossart <nathan@postgresql.org>
To: pgsql-committers@lists.postgresql.org
Subject: pgsql: doc: Clarify the logging collector's guarantees.
Date: Fri, 14 Aug 2026 20:28:27 +0000
Message-ID: <E1wuyVu-00000000acD-33WZ@gemulon.postgresql.org> (raw)
doc: Clarify the logging collector's guarantees.
Presently, the documentation for logging_collector says that the
collector "is designed to never lose messages," which reads as a
stronger promise than we actually make. The collector does not
fsync the log file or retry failed writes, so log messages can go
missing after an operating system crash, power loss, or a write
error. Reword that sentence and add a note about what is not
guaranteed.
Author: Daniel Bauman <danielbaniel@gmail.com>
Reviewed-by: Fujii Masao <masao.fujii@gmail.com>
Reviewed-by: Zhenwei Shang <a934172442@gmail.com>
Reviewed-by: Robert Treat <rob@xzilla.net>
Discussion: https://postgr.es/m/CAMtj0_a86DdDKkW-ReVpQpqjndVS6GMrwXVpQY4G3-SGY7saMQ%40mail.gmail.com
Backpatch-through: 14
Branch
------
REL_17_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/786db8dcf168bd9df8f55047337525ac19118b1c
Modified Files
--------------
doc/src/sgml/config.sgml | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
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To: pgsql-committers@postgresql.org
Cc: nathan@postgresql.org, pgsql-committers@lists.postgresql.org
Subject: Re: pgsql: doc: Clarify the logging collector's guarantees.
In-Reply-To: <E1wuyVu-00000000acD-33WZ@gemulon.postgresql.org>
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