From user-return-30605-apmail-cassandra-user-archive=cassandra.apache.org@cassandra.apache.org Thu Dec 13 14:02:39 2012 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 B3558E8CB for ; Thu, 13 Dec 2012 14:02:39 +0000 (UTC) Received: (qmail 66361 invoked by uid 500); 13 Dec 2012 14:02:37 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 65602 invoked by uid 500); 13 Dec 2012 14:02:32 -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 65573 invoked by uid 99); 13 Dec 2012 14:02:31 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 13 Dec 2012 14:02:31 +0000 X-ASF-Spam-Status: No, hits=1.6 required=5.0 tests=FROM_12LTRDOM,HTML_MESSAGE,RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of mike@mailchannels.com designates 209.85.212.44 as permitted sender) Received: from [209.85.212.44] (HELO mail-vb0-f44.google.com) (209.85.212.44) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 13 Dec 2012 14:02:26 +0000 Received: by mail-vb0-f44.google.com with SMTP id fc26so2270231vbb.31 for ; Thu, 13 Dec 2012 06:02:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailchannels.com; s=google; h=mime-version:from:date:message-id:subject:to:content-type; bh=TNlX/yLNSh8WLm5WnI5SF+3ySx/yz7DGL+7iTs80jAs=; b=KBmUMRjDgXEXuSERB6493Zp4L6QLWrj2sTD1iHhcWvwUSt78+Kbb93GrerW2ILc+x2 IFF6MEfkw+p4QwNoIciTHcjdHJSyy5d0IpBCbkurTaGKrimcaoqpvNOO0tfYlfpSNykT uKnZQ06Zo1EFt73HH3IIxLBs4w+9bcVr1cokw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:from:date:message-id:subject:to:content-type :x-gm-message-state; bh=TNlX/yLNSh8WLm5WnI5SF+3ySx/yz7DGL+7iTs80jAs=; b=Auh47uOXX3+4XEtDOjL7VT2ySi7bsno07e+UTQvpD9h3ZE8NB8BnHS15ENznR93WnP B8tjeQfqyytIig9TX/dof/7TiLJdOjPyiKInXqvtDLwczsFKI48IKsNPwPSHO882rmgn zKIEB8ivDH01S7LJd36fzrp90kLhrB2fRPDa8OTsSfDI+m0ecaJkoFWAkwXC4YBBBPxB 0lX0pXeBAduxftzwXeHkeymO/hhvQzE+m9sEm3sJm3kjTRrdcEG5X/Z8YJJ8M/eiw2m3 oZlcFEp89lkqP75Ghbp+zgQBJ3hweLtwPcOYEvwoPO7dvjAhwUz45MYr7SznqVnznzqS 2Xqg== Received: by 10.58.44.74 with SMTP id c10mr3648842vem.10.1355407324745; Thu, 13 Dec 2012 06:02:04 -0800 (PST) MIME-Version: 1.0 Received: by 10.58.187.19 with HTTP; Thu, 13 Dec 2012 06:01:44 -0800 (PST) From: Mike Smith Date: Thu, 13 Dec 2012 06:01:44 -0800 Message-ID: Subject: Does a scrub remove deleted/expired columns? To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=089e013cc4081e109904d0bc5c2e X-Gm-Message-State: ALoCoQmA15jNXWCTW1q2zVJe6LRI+lQsncIxX/77tIaY89yQ0XosBQa+Stli/By4ELzL+UNN798z X-Virus-Checked: Checked by ClamAV on apache.org --089e013cc4081e109904d0bc5c2e Content-Type: text/plain; charset=ISO-8859-1 I'm using 1.0.12 and I find that large sstables tend to get compacted infrequently. I've got data that gets deleted or expired frequently. Is it possible to use scrub to accelerate the clean up of expired/deleted data? -- Mike Smith Director Development, MailChannels --089e013cc4081e109904d0bc5c2e Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable I'm using 1= .0.12 and I find that large sstables tend to get compacted infrequently. I&= #39;ve got data that gets deleted or expired frequently. Is it possible to = use scrub to accelerate the clean up of expired/deleted data?

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Mike Smith
Director Development, MailChannels
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