agora inbox for pgsql-sql@postgresql.org
help / color / mirror / Atom feedFrom: Adrian Klaver <adrian.klaver@aklaver.com>
To: Dev Kumkar <devdas.kumkar@gmail.com>
To: pgsql-general@postgresql.org <pgsql-general@postgresql.org>
To: pgsql-sql@postgresql.org
Subject: Re: pg_multixact issues
Date: Wed, 17 Sep 2014 06:21:47 -0700
Message-ID: <54198AEB.2070508@aklaver.com> (raw)
In-Reply-To: <CALSLE1P4knmyFa5BzdeYo7fVnjw-1-TwW9dXTEW-9nJjK4fQMg@mail.gmail.com>
References: <CALSLE1P4knmyFa5BzdeYo7fVnjw-1-TwW9dXTEW-9nJjK4fQMg@mail.gmail.com>
List-Unsubscribe: <mailto:majordomo@postgresql.org?body=unsub%20pgsql-sql>
On 09/17/2014 05:16 AM, Dev Kumkar wrote:
>
> Hello,
>
> On one my machine the pg_multixact directory size has grown up to 5 GB
> and am not sure how to clean up this directory.
>
> From the storage-file-layout this directory contains multitransaction
> status data.
> pg_multixact Subdirectory containing multitransaction status data (used
> for shared row locks)
>
>
> It would really help if someone can provide some reading material
> regarding pg_multixact? Would this also result in database slowness by
> any chance?
>
> Are there any tweaking commands related to this directory settings, also
> how can I cleanup/truncate this directory without impacting the overall
> database.
http://www.postgresql.org/docs/9.3/static/routine-vacuuming.html#VACUUM-FOR-MULTIXACT-WRAPAROUND
Might also want to take a look at pg_stat_activity to see what queries
maybe hanging up:
http://www.postgresql.org/docs/9.3/static/monitoring-stats.html#PG-STAT-ACTIVITY-VIEW
>
> Looking forward to get some insight here.
>
> Regards...
--
Adrian Klaver
adrian.klaver@aklaver.com
--
Sent via pgsql-sql mailing list (pgsql-sql@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-sql
view thread (24+ messages) latest in thread
Message-ID: <54198AEB.2070508@aklaver.com>
Permalink: ../54198AEB.2070508@aklaver.com/
Also on: postgresql.org/message-id/54198AEB.2070508@aklaver.com
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: pgsql-sql@postgresql.org
Cc: adrian.klaver@aklaver.com, devdas.kumkar@gmail.com, pgsql-general@postgresql.org
Subject: Re: pg_multixact issues
In-Reply-To: <54198AEB.2070508@aklaver.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