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 20E4E103EC for ; Thu, 1 Aug 2013 21:05:03 +0000 (UTC) Received: (qmail 22888 invoked by uid 500); 1 Aug 2013 21:05:00 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 22865 invoked by uid 500); 1 Aug 2013 21:05:00 -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 22857 invoked by uid 99); 1 Aug 2013 21:05:00 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Aug 2013 21:05:00 +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 (nike.apache.org: domain of horschi@gmail.com designates 74.125.83.41 as permitted sender) Received: from [74.125.83.41] (HELO mail-ee0-f41.google.com) (74.125.83.41) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 01 Aug 2013 21:04:54 +0000 Received: by mail-ee0-f41.google.com with SMTP id d17so1258420eek.0 for ; Thu, 01 Aug 2013 14:04:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=GXO3HYUnWfAhgLg9CuK1sGFDhD/36huvlaWq1QPN23U=; b=eAxaaPAKjxv928r0zbehvF620nbZCI6vJfk9d2bx/ItG/olikZPruR++cYqA3RMS64 6dMSVBpj8j1uvSqBz4NnajyZU5Hvc3851cRK7aWQTToxadgecsOKmYbU3/8ir87ugWsM U3F+5wtU4iTByN7WULY4vXx++6Asfa1C2dpbTTMxVBO6gVGv0nxsPsquiHOD0ATcWv5N QH4s4E0uKnzZQsX4/K7ShtWAp1QdWOvoCNyOorrtl2Tl+guTCl6nEgSk2ekXHN2H8KAm rYZC3WGlgbYcgYTN89066d7J6cR2XA63MkA0/1bIVIQ6hJH840mRu4dFyE+3FyAe/XPB 81ug== MIME-Version: 1.0 X-Received: by 10.14.211.1 with SMTP id v1mr1450138eeo.5.1375391074195; Thu, 01 Aug 2013 14:04:34 -0700 (PDT) Received: by 10.14.173.195 with HTTP; Thu, 1 Aug 2013 14:04:34 -0700 (PDT) In-Reply-To: References: Date: Thu, 1 Aug 2013 23:04:34 +0200 Message-ID: Subject: Re: How often to run `nodetool repair` From: horschi To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=047d7b5dbf8c67c6bc04e2e930bb X-Virus-Checked: Checked by ClamAV on apache.org --047d7b5dbf8c67c6bc04e2e930bb Content-Type: text/plain; charset=ISO-8859-1 > TTL is effectively DELETE; you need to run a repair once every > gc_grace_seconds. If you don't, data might un-delete itself. > The undelete part is not true. btw: With CASSANDRA-4917 TTLed columns will not even create a tombstone (assuming ttl > gc_grace). The rest of your mail I agree with :-) --047d7b5dbf8c67c6bc04e2e930bb Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
TTL is effec= tively DELETE; you need to run a repair once every gc_grace_seconds. If you= don't, data might un-delete itself.

The undelete part is not true= . btw: With CASSANDRA-4917 TTLed columns will not even create a tombstone (= assuming ttl > gc_grace).

The rest of your mail I agree with :-)<= br>

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