public inbox for [email protected]  

help / color / mirror / Atom feed

From: Justin Swanhart <[email protected]>
To: [email protected]
Subject: Re: Archive logging not cleaning up pg_wal directory
Date: Thu, 10 Apr 2025 09:12:52 -0400
Message-ID: <CAJM9iN1gwycOH6PBGhN6j5BnrdDMsMq6_rN4nb0dXGL_8m0zWA@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CAJM9iN3w3UdA3q4_Xnw+Pg+Nnxe4OAUjLQ7EgLtPe36y4A0HDA@mail.gmail.com>
	<[email protected]>

Thank you very much.  I had a stale replication slot.  I removed it and the
logs were cleaned up immediately.

--Justin

On Thu, Apr 10, 2025 at 8:48 AM Laurenz Albe <[email protected]>
wrote:

> On Thu, 2025-04-10 at 08:28 -0400, Justin Swanhart wrote:
> > I have the following in my postgresql.conf for archive logging:
> > archive_command='test ! -f /var/lib/postgresql/prod_archive_logs/%f &&
> cp %p /var/lib/postgresql/prod_archive_logs/%f'
> >
> > This command is properly copying the log files to my archive directory
> but they remain in the `pg_wal`
> > directory after they are copied, consuming hundreds of gigs of space.
> Am I supposed to create a cron
> > job to clean out the `pg_wal` directory periodically (keep only 1 day of
> logs I guess?)
> >
> > I tried to use mv:
> > archive_command='test ! -f /var/lib/postgresql/prod_archive_logs/%f &&
> mv %p /var/lib/postgresql/prod_archive_logs/%f'
> >
> > When I did this the archives were moved away to the archive directory
> but when I tried to set up
> > replication the server could not find the archived log to replicate from
> so I changed it to "cp" and now have this problem.
> >
> > What am I missing?
>
> Something else is blocking WAL removal:
> https://www.cybertec-postgresql.com/en/why-does-my-pg_wal-keep-growing/
>
> Since you mention replication, my money is on a stale replication slot.
>
> Yours,
> Laurenz Albe
>

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: [email protected]
  Cc: [email protected], [email protected]
  Subject: Re: Archive logging not cleaning up pg_wal directory
  In-Reply-To: <CAJM9iN1gwycOH6PBGhN6j5BnrdDMsMq6_rN4nb0dXGL_8m0zWA@mail.gmail.com>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox