Re: VACUUM FULL does not works....... - Mailing list pgsql-performance

From Scott Marlowe
Subject Re: VACUUM FULL does not works.......
Date
Msg-id 1165443208.3243.17.camel@state.g2switchworks.com
Whole thread Raw
In response to Re: VACUUM FULL does not works.......  (asif ali <asif_icrossing@yahoo.com>)
Responses Re: VACUUM FULL does not works.......  (asif ali <asif_icrossing@yahoo.com>)
List pgsql-performance
On Wed, 2006-12-06 at 15:53, asif ali wrote:
> Thanks Everybody for helping me out.
> I checked "pg_stat_activity"/pg_locks, but do not see any activity on
> the table.
> How to find a old running transaction...
> I saw this link, but it did not help..
> http://archives.postgresql.org/pgsql-hackers/2005-02/msg00760.php

Sometimes just using top or ps will show you.

on linux you can run top and then hit c for show command line and look
for ones that are IDLE

Or, try ps:

ps axw|grep postgres

On my machine normally:

 2408 ?        S      0:00 /usr/local/pgsql/bin/postmaster -p 5432 -D /home/postgres/data
 2615 ?        S      0:00 postgres: stats buffer process
 2616 ?        S      0:00 postgres: stats collector process
 2857 ?        S      0:00 postgres: writer process
 2858 ?        S      0:00 postgres: stats buffer process
 2859 ?        S      0:00 postgres: stats collector process

But with an idle transaction:

 2408 ?        S      0:00 /usr/local/pgsql/bin/postmaster -p 5432 -D /home/postgres/data
 2615 ?        S      0:00 postgres: stats buffer process
 2616 ?        S      0:00 postgres: stats collector process
 2857 ?        S      0:00 postgres: writer process
 2858 ?        S      0:00 postgres: stats buffer process
 2859 ?        S      0:00 postgres: stats collector process
 8679 ?        S      0:00 postgres: smarlowe test [local] idle in transaction

Thar she blows!

Also, you can restart the database and vacuum it then too. Of course,
don't do that during regular business hours...

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