Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 1726 invoked from network); 8 Feb 2011 20:47:07 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 8 Feb 2011 20:47:07 -0000 Received: (qmail 42887 invoked by uid 500); 8 Feb 2011 20:47:05 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 42841 invoked by uid 500); 8 Feb 2011 20:47:05 -0000 Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@cassandra.apache.org Delivered-To: mailing list user@cassandra.apache.org Received: (qmail 42832 invoked by uid 99); 8 Feb 2011 20:47:04 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 08 Feb 2011 20:47:04 +0000 X-ASF-Spam-Status: No, hits=-0.0 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_NEUTRAL X-Spam-Check-By: apache.org Received-SPF: neutral (nike.apache.org: local policy) Received: from [209.85.212.172] (HELO mail-px0-f172.google.com) (209.85.212.172) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 08 Feb 2011 20:46:55 +0000 Received: by pxi6 with SMTP id 6so1500123pxi.31 for ; Tue, 08 Feb 2011 12:46:34 -0800 (PST) Received: by 10.142.233.8 with SMTP id f8mr10686533wfh.143.1297197994189; Tue, 08 Feb 2011 12:46:34 -0800 (PST) Received: from Ben-Coverstons-MacBook-Pro.local (c-67-166-71-138.hsd1.ut.comcast.net [67.166.71.138]) by mx.google.com with ESMTPS id v19sm8075989wfh.12.2011.02.08.12.46.32 (version=SSLv3 cipher=RC4-MD5); Tue, 08 Feb 2011 12:46:33 -0800 (PST) Message-ID: <4D51ABA7.1090205@datastax.com> Date: Tue, 08 Feb 2011 13:46:31 -0700 From: Benjamin Coverston User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.2.13) Gecko/20101207 Thunderbird/3.1.7 MIME-Version: 1.0 To: user@cassandra.apache.org Subject: Re: time to live rows References: <05CEA178DD88EE4FA89EED77C245F8490C2BFB23@msex85.morningstar.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org On 2/8/11 1:23 PM, Kallin Nagelberg wrote: > I did read those articles, but I didn't know know that deleting all > the columns on a row was equivalent to deleting the row. Like I > mentioned, I did delete all the columns from all my rows and then > forced compaction before and after gc_grace had passed, but all the > rows still exist. If they never disappear, then won't I run out of > resources eventually? > > -Kal You would, if there weren't a way to get rid of tombstones: http://wiki.apache.org/cassandra/DistributedDeletes -- Ben Coverston DataStax -- The Apache Cassandra Company