RE: wal seams to be corrupted

Thanks for the answer.
What about to stop postgresql server which is primary in replication and promote another server?

Best regards!
[izum]

Domen Šetar
Computer Systems Support
IZUM – Institute of Information Science | Prešernova ulica 17 | 2000 Maribor | Slovenia
T: +386 2 25 20 339 | M: +386 41 676 342 | www.izum.si<http://www.izum.si/> | domen(dot)setar(at)izum(dot)si<mailto:domen(dot)setar(at)izum(dot)si>

From: Kashif Zeeshan <kashi(dot)zeeshan(at)gmail(dot)com>
Sent: Friday, July 19, 2024 8:10 AM
To: Domen Šetar <domen(dot)setar(at)izum(dot)si>
Cc: pgsql-admin(at)lists(dot)postgresql(dot)org
Subject: Re: wal seams to be corrupted

Hi Domen

On Fri, Jul 19, 2024 at 10:57 AM Domen Šetar <domen(dot)setar(at)izum(dot)si<mailto:domen(dot)setar(at)izum(dot)si>> wrote:
Hi admins,

The number of wal files on my postgresql server is rising, because it seams that one wal is corrupted. Postgrsql is running normaly. I see this in postgresql log file:

2024-07-19 07:44:12 CEST [2205]: [32288-1] user=,db=,app=,client= DETAIL: The failed archive command was: test ! -f /var/lib/pgsql/ArchiveDir/000000010000044E0000009D && cp pg_wal/000000010000044E0000009D /var/lib/pgsql/ArchiveDir/000000010000044E0000009D

Usualy helped if I deleted wal in ArchiveDir directory. But not this time. Wal is copied again from pg_wal to ArchiveDir directory and error message continues.
What can I do to solve this problem? Is pg_resetwal solution fort his problem? If it is, how to use it?
Yes you should use the pg_resetwal what it does is clears the write-ahead log (WAL) and optionally resets some other control information stored in the pg_control file. This function is sometimes needed if these files have become corrupted. It should be used only as a last resort, when the server will not start due to such corruption.

You can find the help from the following link
https://www.postgresql.org/docs/current/app-pgresetwal.html

Regards
Kashif Zeeshan

Best regards!
[izum]

Domen Šetar
Computer Systems Support
IZUM – Institute of Information Science | Prešernova ulica 17 | 2000 Maribor | Slovenia
T: +386 2 25 20 339 | M: +386 41 676 342 | www.izum.si<http://www.izum.si/> | domen(dot)setar(at)izum(dot)si<mailto:domen(dot)setar(at)izum(dot)si>