From user-return-9018-apmail-cassandra-user-archive=cassandra.apache.org@cassandra.apache.org Sun Sep 05 15:48:29 2010 Return-Path: Delivered-To: apmail-cassandra-user-archive@www.apache.org Received: (qmail 78456 invoked from network); 5 Sep 2010 15:48:29 -0000 Received: from unknown (HELO mail.apache.org) (140.211.11.3) by 140.211.11.9 with SMTP; 5 Sep 2010 15:48:29 -0000 Received: (qmail 18611 invoked by uid 500); 5 Sep 2010 15:48:27 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 18563 invoked by uid 500); 5 Sep 2010 15:48:26 -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 18554 invoked by uid 99); 5 Sep 2010 15:48:26 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 05 Sep 2010 15:48:26 +0000 X-ASF-Spam-Status: No, hits=0.0 required=10.0 tests=FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of edlinuxguru@gmail.com designates 209.85.214.44 as permitted sender) Received: from [209.85.214.44] (HELO mail-bw0-f44.google.com) (209.85.214.44) by apache.org (qpsmtpd/0.29) with ESMTP; Sun, 05 Sep 2010 15:48:17 +0000 Received: by bwz9 with SMTP id 9so3485490bwz.31 for ; Sun, 05 Sep 2010 08:47:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=bf0IP0uVRq1SyvkOXQFAVsmJtSqUCRjzgJh7agtpSwI=; b=QrhOPiNt/1uCQeeGMuc0H38G1njXc4D+LLo4BUMPbeUmzHPLInnP5e35rsy2kgzo8u vN05hN6Et7flZo002H6bDj0Ij07CVQvYYv2GH3ikcfhWfOthrWy5Bwab8U7mMQzJ6eFL ETkIJIJmMWwiSSy392yVBsmBiC2RI3UHw9nkI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=rUkl2BLYF8bkdmwjAW8f4mn40hFIM0VUIlFl3iSxFitn8h3bKiuXHr0rIzjxFAD3D+ aWG+x4Txj2LXUl9dUnxUoTSWLJQ24GW5jk1oEFjlDbaWougYo4uflblXSdXzDOXqAq4X sTdYbyjPMGbQc/NrqCv081h/LUT5ufPy3RkYY= MIME-Version: 1.0 Received: by 10.204.65.145 with SMTP id j17mr2023822bki.209.1283701677049; Sun, 05 Sep 2010 08:47:57 -0700 (PDT) Received: by 10.204.118.1 with HTTP; Sun, 5 Sep 2010 08:47:57 -0700 (PDT) Date: Sun, 5 Sep 2010 11:47:57 -0400 Message-ID: Subject: anyone want to talk about read_repair_chance From: Edward Capriolo To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org Read repair chance looks to be an awesome feature. We have a pretty high cache hit rate so I would assume read repair chance would reduce a lot of bandwidth and disk activity across our cluster. Does anyone have some statistics or experiences they want to share? Edward