From user-return-3714-apmail-couchdb-user-archive=couchdb.apache.org@couchdb.apache.org Thu Feb 26 13:01:33 2009 Return-Path: Delivered-To: apmail-couchdb-user-archive@www.apache.org Received: (qmail 4170 invoked from network); 26 Feb 2009 13:01:33 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.2) by minotaur.apache.org with SMTP; 26 Feb 2009 13:01:33 -0000 Received: (qmail 8188 invoked by uid 500); 26 Feb 2009 13:01:31 -0000 Delivered-To: apmail-couchdb-user-archive@couchdb.apache.org Received: (qmail 7895 invoked by uid 500); 26 Feb 2009 13:01:29 -0000 Mailing-List: contact user-help@couchdb.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@couchdb.apache.org Delivered-To: mailing list user@couchdb.apache.org Received: (qmail 7884 invoked by uid 99); 26 Feb 2009 13:01:29 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 26 Feb 2009 05:01:29 -0800 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of b.candler@pobox.com designates 207.106.133.19 as permitted sender) Received: from [207.106.133.19] (HELO sasl.smtp.pobox.com) (207.106.133.19) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 26 Feb 2009 13:01:20 +0000 Received: from localhost.localdomain (unknown [127.0.0.1]) by a-sasl-fastnet.sasl.smtp.pobox.com (Postfix) with ESMTP id 7D9569D730; Thu, 26 Feb 2009 08:00:53 -0500 (EST) Received: from mappit (unknown [80.45.95.114]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by a-sasl-fastnet.sasl.smtp.pobox.com (Postfix) with ESMTPSA id DDEED9D72E; Thu, 26 Feb 2009 08:00:51 -0500 (EST) Received: from brian by mappit with local (Exim 4.69) (envelope-from ) id 1Lcfr8-0003w8-8m; Thu, 26 Feb 2009 13:00:50 +0000 Date: Thu, 26 Feb 2009 13:00:50 +0000 From: Brian Candler To: Sho Fukamachi Cc: user@couchdb.apache.org Subject: Re: quick poll - how many databases do you have? Message-ID: <20090226130050.GA14964@uk.tiscali.com> References: <21FC6219-FE45-4090-A4DF-D38B5E4AB522@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <21FC6219-FE45-4090-A4DF-D38B5E4AB522@gmail.com> User-Agent: Mutt/1.5.17+20080114 (2008-01-14) X-Pobox-Relay-ID: 7FE7416E-0405-11DE-94F4-B26E209B64D9-28021239!a-sasl-fastnet.pobox.com X-Virus-Checked: Checked by ClamAV on apache.org On Wed, Feb 25, 2009 at 01:03:21AM +1100, Sho Fukamachi wrote: > > On 21/02/2009, at 10:40 AM, Jan Lehnardt wrote: > >> Many. For certain applications it makes sense to have a db per user. > > Careful with that approach if there is any chance of having a lot of > users, or you don't control the machine. All the database files go into > one directory. Another problem is if there are lots of writes across many databases. Separate head seeks will be required for each database.