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Re: Parallel Vacuum

From: Dimitri <dimitrik(dot)fr(at)gmail(dot)com>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Parallel Vacuum
Date: 2007-03-22 15:05:37
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-performance
On Thursday 22 March 2007 14:52, Alvaro Herrera wrote:
> Dimitri escribió:
> > Folks,
> >
> > is there any constrains/problems/etc. to run several vacuum processes in
> > parallel while each one is 'vaccuming' one different table?
> No, no problem.  Keep in mind that if one of them takes a very long
> time, the others will not be able to remove dead tuples that were
> killed while the long vacuum was running -- unless you are in 8.2.

Yes, I'm using the last 8.2.3 version. So, will they *really* processing in 
parallel, or will block each other step by step?


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