Return-Path: X-Original-To: apmail-cassandra-user-archive@www.apache.org Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id CF34B1040A for ; Tue, 29 Apr 2014 16:40:43 +0000 (UTC) Received: (qmail 4176 invoked by uid 500); 29 Apr 2014 16:40:40 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 4129 invoked by uid 500); 29 Apr 2014 16:40:40 -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 4121 invoked by uid 99); 29 Apr 2014 16:40:40 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 29 Apr 2014 16:40:40 +0000 X-ASF-Spam-Status: No, hits=1.5 required=5.0 tests=HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of rcoli@eventbrite.com designates 209.85.215.53 as permitted sender) Received: from [209.85.215.53] (HELO mail-la0-f53.google.com) (209.85.215.53) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 29 Apr 2014 16:40:34 +0000 Received: by mail-la0-f53.google.com with SMTP id b8so353261lan.26 for ; Tue, 29 Apr 2014 09:40:13 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=V6WakhlzP5lerrDac6WKBhJ/fCFmb/ygsdg0uviIJE0=; b=FjNmIICKz7JTBZjoTKdQkEBxtnOZwRct22S1n1bEdY5/jx7XqzqwVmWoUZm9FLEDv8 AG+QqK4enOfuXRlu8dBTecURucysdmJxgr7unriPjw9CAYQ16J20nAJsQbxjUbKU4+sv rz/wBFPIq7gbJAEsEVvZSK1eFjOyqpr0mI42EV22s/AJPHcfbz7O+0+gbv9DQclnz3BR W/VpAOHxIqI2thYlO77bglnW6xfccQiYOxShC/Gys6JfKgyj6Vm3H3HznXyiu3kpD2xb T/jHweCryhSvQELOU1M3O+2GWybfEg/LbmLf05o/Q+y1eBvZaT6uqUpnXeP71JbVmvWH 7jbg== X-Gm-Message-State: ALoCoQnHcByrp3r+T9033brMV6xcR1DfvHQLxwp6fCHSt0FZRBGSYtfFqOCpvDm6VEfd8x9zO8/x MIME-Version: 1.0 X-Received: by 10.152.88.70 with SMTP id be6mr151077lab.13.1398789612844; Tue, 29 Apr 2014 09:40:12 -0700 (PDT) Received: by 10.115.4.162 with HTTP; Tue, 29 Apr 2014 09:40:12 -0700 (PDT) In-Reply-To: References: Date: Tue, 29 Apr 2014 09:40:12 -0700 Message-ID: Subject: Re: row caching for frequently updated column From: Robert Coli To: "user@cassandra.apache.org" Content-Type: multipart/alternative; boundary=001a11c26176fd4b3a04f8311592 X-Virus-Checked: Checked by ClamAV on apache.org --001a11c26176fd4b3a04f8311592 Content-Type: text/plain; charset=UTF-8 On Tue, Apr 29, 2014 at 9:30 AM, Jimmy Lin wrote: > if Cassandra invalidate the row cache upon a single column update to that > row, that seems very inefficient. > https://issues.apache.org/jira/browse/CASSANDRA-5348?focusedCommentId=13794634&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13794634 =Rob --001a11c26176fd4b3a04f8311592 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On T= ue, Apr 29, 2014 at 9:30 AM, Jimmy Lin <y2klyf+work@gmail.com><= /span> wrote:
if Cassandra invalidate the=C2=A0=C2= =A0row cache upon a single column update to that row, that seems very ineff= icient.


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