Re: 8.2 Autovacuum BUG ?

From: Andreas Kretschmer <andreas(at)a-kretschmer(dot)de>
To: pgsql-performance(at)lists(dot)postgresql(dot)org
Subject: Re: 8.2 Autovacuum BUG ?
Date: 2018-01-23 14:17:27
Message-ID: be4983c9-ae44-f068-ee02-d4b7e4c8d2bd@a-kretschmer.de
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-performance

Am 23.01.2018 um 12:51 schrieb pavan95:
> Hi Andreas,
>
> Yes I'm facing problem because of this huge WAL(archive log) generation. As
> it is seriously consuming a lot of disk space almost close to 50GB per day
> even if the DML's don't have that impact in this WAL generation.
>
> Previously the archive_log size is nearly 2 to 3 GB a day. Now with the same
> set of DML's how is it being generated to 50GB is my burning doubt.

Will so many wals continue to be produced?

>
> I just wanted to know how to stabilize this issue, as checking and deleting
> the archive logs on hourly basis is not a good idea.
Don't delete wal's!

> Finally, I'm looking how to reduce this back to normal. Thanks in Advance.

have you set archive_mode to on and defined an archive_command?
Wal-files will be reused after 2 checkpoints.
Is there something in the logs?

Regards, Andreas
--
2ndQuadrant - The PostgreSQL Support Company.
www.2ndQuadrant.com

In response to

Responses

Browse pgsql-performance by date

  From Date Subject
Next Message Pavan Teja 2018-01-23 14:39:27 Re: 8.2 Autovacuum BUG ?
Previous Message Jean-Marc Lessard 2018-01-23 14:08:17 RE: Inefficient full seq scan on pg_largeobject instead of index scan