BUG #19025: PostgreSQL log is not rotated

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From: PG Bug reporting form <noreply@postgresql.org>
To: pgsql-bugs@lists.postgresql.org
Cc: jose.morcillo.valenciano@gmail.com
Date: 2025-08-19T10:21:28Z
Lists: pgsql-bugs
The following bug has been logged on the website:

Bug reference:      19025
Logged by:          José Antonio Morcillo Valenciano
Email address:      jose.morcillo.valenciano@gmail.com
PostgreSQL version: 16.2
Operating system:   Red Hat Enterpr Linux 5.14.0-427.35.1.el9_4.x86_64
Description:        

Hi folks!

We have configured our log rotating policy as follows:

logging_collector = on
log_destination = 'stderr'
log_directory = '/postgresql/16/log/cpdm-cluster86'
log_filename = 'postgresql-%Y-%m-%d_%H%M%S.log'
log_rotation_age = 1d
log_rotation_size = 250MB
log_truncate_on_rotation = on

But the log is 16GB and no rotation has happened:

[PRO] $ ls -lh
total 16G
-rw-r--r-- 1 postgres postgres 16G Aug 19 12:16
postgresql-2025-07-12_001207.log


I have been searching any bug but I could not find it. Any ideas?

Thanks!!!

Regards,
José Antonio