Received: from localhost (maia-4.hub.org [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 6B9319FB7BF for ; Thu, 22 Mar 2007 12:04:32 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-new, port 10024) with ESMTP id 21429-03-2 for ; Thu, 22 Mar 2007 12:04:16 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.4 Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.171]) by postgresql.org (Postfix) with ESMTP id 55C7B9FB7F9 for ; Thu, 22 Mar 2007 12:04:16 -0300 (ADT) Received: by ug-out-1314.google.com with SMTP id k3so674739ugf for ; Thu, 22 Mar 2007 08:04:14 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:from:to:subject:date:user-agent:cc:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=L1k/6OwVQawFXDj28x+spoweggk7WvipU6UrNWCsR0V6n6ru7Xx0yGi7PGofeM+lu/QoKvFCTJFRuofz94/Iaz35dzGwIvOygCgu0tOXoyuFqhp5zwqLgB6n30soF+AWZxMpmsv0g5lFBz933V2NygcdC/VolOJPSIpKYXzsXu0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:from:to:subject:date:user-agent:cc:references:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=aLLKWA/uTaCa3bokb6wpzyP9swElhjedtbZwzn495qEZQqlslT0M3jV9ZmL8VoIW7s+UcGxfECH1LpbK4GLe9az8q7gnf9fsqSwNIFkp2ttWVQgy224uBKsoWtdklcs+jEgZu0fZbhuJBxml7RyAx1mByUTP2z0gCFGhc0Dx5JI= Received: by 10.66.244.10 with SMTP id r10mr5011876ugh.1174575854393; Thu, 22 Mar 2007 08:04:14 -0700 (PDT) Received: from ?192.168.18.160? ( [194.206.227.18]) by mx.google.com with ESMTP id z34sm7966542ikz.2007.03.22.08.04.13; Thu, 22 Mar 2007 08:04:13 -0700 (PDT) From: Dimitri To: Alvaro Herrera Subject: Re: Parallel Vacuum Date: Thu, 22 Mar 2007 16:05:37 +0100 User-Agent: KMail/1.9.3 Cc: pgsql-performance@postgresql.org References: <200703221435.54408.dimitrik.fr@gmail.com> <20070322135205.GD4102@alvh.no-ip.org> In-Reply-To: <20070322135205.GD4102@alvh.no-ip.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Message-Id: <200703221605.38460.dimitrik.fr@gmail.com> X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200703/327 X-Sequence-Number: 23732 On Thursday 22 March 2007 14:52, Alvaro Herrera wrote: > Dimitri escribi=F3: > > 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= =20 parallel, or will block each other step by step? Rgds, =2DDimitri