Return-Path: Delivered-To: apmail-incubator-cassandra-user-archive@minotaur.apache.org Received: (qmail 53950 invoked from network); 1 Mar 2010 22:52:38 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 1 Mar 2010 22:52:38 -0000 Received: (qmail 22182 invoked by uid 500); 1 Mar 2010 22:52:36 -0000 Delivered-To: apmail-incubator-cassandra-user-archive@incubator.apache.org Received: (qmail 22167 invoked by uid 500); 1 Mar 2010 22:52:36 -0000 Mailing-List: contact cassandra-user-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: cassandra-user@incubator.apache.org Delivered-To: mailing list cassandra-user@incubator.apache.org Received: (qmail 22159 invoked by uid 99); 1 Mar 2010 22:52:36 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 01 Mar 2010 22:52:36 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=10.0 tests=SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of jbellis@gmail.com designates 74.125.82.175 as permitted sender) Received: from [74.125.82.175] (HELO mail-wy0-f175.google.com) (74.125.82.175) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 01 Mar 2010 22:52:29 +0000 Received: by wyf28 with SMTP id 28so1488374wyf.6 for ; Mon, 01 Mar 2010 14:52:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:content-type; bh=kVB9OmJt8B4REGr6fr80KZYS2qViGOFZYZ8fYerGj2E=; b=XbnRkeQw77bGvyd6fugvRYIsVfRHZ66q2LU+Gxa/01PqRcr7u335Q5DNgBlM5cx5EO 7Xpynul+UMIQGoZp+navwmUR9otgphXPeJASok1+gWf/mthlACyhRPHftW96C9g+MHWN jCl5WrTV51kYO36lg4/dlcGGCfm0EhB+mmBA8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :content-type; b=gjH9K6euxoIQOT2j1hqySTtkuIZE9hvjA4Acn0J8B1j62I8tpEXJH8fRwpczCETmrm qZ2tShU8N2ex4LSbBSPcedezvrvhCCWGgxLUr+C+/JvXPVmFvWD1d3z4ZD75ux/JiJFx Tf6QtbvgzAbk2kH51UoeS+XazxScsTGhsNpic= MIME-Version: 1.0 Received: by 10.216.90.201 with SMTP id e51mr835636wef.59.1267483928133; Mon, 01 Mar 2010 14:52:08 -0800 (PST) In-Reply-To: <74f4d40b1003011449laa4aab8xf77527619dee646c@mail.gmail.com> References: <74f4d40b1003011050r640135dbya3739fcd226fd8b9@mail.gmail.com> <74f4d40b1003011342v16a2a2aoda9dfe738fcf7408@mail.gmail.com> <74f4d40b1003011343ma0dd64aha3d1f99ebd93ddc3@mail.gmail.com> <74f4d40b1003011406s55eb52c3lcd1ebd45e1be2d05@mail.gmail.com> <74f4d40b1003011449laa4aab8xf77527619dee646c@mail.gmail.com> From: Jonathan Ellis Date: Mon, 1 Mar 2010 16:51:48 -0600 Message-ID: Subject: Re: Storage format To: cassandra-user@incubator.apache.org Content-Type: text/plain; charset=ISO-8859-1 On Mon, Mar 1, 2010 at 4:49 PM, Erik Holstad wrote: > Haha! > Thanks. Well I'm z little bit worried about this but since the indexes are > pretty > small I don't think it is going to be too bad. But was mostly thinking about > performance and and having the index row as a bottleneck for writing, since > the > partition is per row. Writing N columns to 1 row is faster than writing 1 column to N rows, even when all N are coming from different clients. Our concurrency story there is excellent.