BUG #18821: Need delete files in pg_wal, size is bigger overcome limit max_wal_size
The following bug has been logged on the website:
Bug reference: 18821
Logged by: Marlene Saransig
Email address: marle.saransig@gmail.com
PostgreSQL version: 15.2
Operating system: Alma Linux 9.1
Description:
Need to eliminate files of /var/lib/pgsql/15/data/pg_wal/, because overcome
limit define in max_wal_size and this increase size used in hard disk
It is necesary to conserve files necesary to correct perfomance and
funcionality of database
Actual configuration:
PostgreSQL 15.2
max_wal_size=4GB
min_wal_size=1GB
wal_level=logical
checkpoint_timeout=5min
wal_compression=off
shared_buffers=2560MB
archive_mode=off
du -sh /var/lib/pgsql/15/data/pg_wal/ obtain size 213GB
find /var/lib/pgsql/15/data/pg_wal/ -type f | wc -l obtain numbers of files
13581
Use this command to eliminate files of pg_wal, but when execute this
command, it doesn´t have desired result
sudo -u postgres /usr/pgsql-15/bin/pg_archivecleanup -d
/var/lib/pgsql/15/data/pg_wal/ $(sudo -u postgres psql -Atc "SELECT
pg_walfile_name(pg_current_wal_lsn());")
Additionally execute the command CHECKPOINT to force of elimination of old
files
El jue, 20 feb 2025 a las 12:43, PG Bug reporting form (<
noreply@postgresql.org>) escribió:
Show quoted text
The following bug has been logged on the website:
Bug reference: 18821
Logged by: Marlene Saransig
Email address: marle.saransig@gmail.com
PostgreSQL version: 15.2
Operating system: Alma Linux 9.1
Description:Need to eliminate files of /var/lib/pgsql/15/data/pg_wal/, because overcome
limit define in max_wal_size and this increase size used in hard diskIt is necesary to conserve files necesary to correct perfomance and
funcionality of databaseActual configuration:
PostgreSQL 15.2
max_wal_size=4GB
min_wal_size=1GB
wal_level=logical
checkpoint_timeout=5min
wal_compression=off
shared_buffers=2560MB
archive_mode=offdu -sh /var/lib/pgsql/15/data/pg_wal/ obtain size 213GB
find /var/lib/pgsql/15/data/pg_wal/ -type f | wc -l obtain numbers of
files
13581
On Thu, Feb 20, 2025 at 05:42:40PM +0000, PG Bug reporting form wrote:
The following bug has been logged on the website:
Bug reference: 18821
Logged by: Marlene Saransig
Email address: marle.saransig@gmail.com
PostgreSQL version: 15.2
Operating system: Alma Linux 9.1
Description:Need to eliminate files of /var/lib/pgsql/15/data/pg_wal/, because overcome
limit define in max_wal_size and this increase size used in hard disk
You might want to read
https://www.depesz.com/2023/06/18/why-is-my-wal-directory-so-large/
Generally, it's extremely unlikely to be a bug in postgresql. More
likely misconfiguration or forgotten "thing" that is causing the issue.
Best regards,
depesz