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 89846105DB for ; Tue, 1 Oct 2013 20:52:37 +0000 (UTC) Received: (qmail 12052 invoked by uid 500); 1 Oct 2013 20:52:34 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 11967 invoked by uid 500); 1 Oct 2013 20:52:34 -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 11950 invoked by uid 99); 1 Oct 2013 20:52:33 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 01 Oct 2013 20:52:33 +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 rene.kochen@schange.com designates 209.85.215.42 as permitted sender) Received: from [209.85.215.42] (HELO mail-la0-f42.google.com) (209.85.215.42) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 01 Oct 2013 20:52:28 +0000 Received: by mail-la0-f42.google.com with SMTP id ep20so6472270lab.1 for ; Tue, 01 Oct 2013 13:52:07 -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=EDrzlcetEJD2DY0WoqSnkqkODu+mXFNZKhT+GzpS9Og=; b=Qv7dbeG1wzPaYV4mN9+m3i41GOgszIVez9NXl3brsUj/MixZOc1L+uQW6TtuxUjgPI v5KDixmU+sQOTEhUu89zrGUgWInpooxhjDqLcUl4zQomJq1CzH+KEonSv/4TE2UhCFDe AmobVg16MMCcQJ0urpxdcmPHu0Ffh5mER1yYPqFo31s5U4u05gO+rVKgL6t3oDEHs1G0 V3vYQMQ8QcTzbcBo3QykWpHyOsCvHOabZBHWmz8W6KbK4ewQ2QFig6pu40L8f2mwxPiw RC2Cf/wgNHHKAJ9IEn53ZY4//oqY7aD5h+lZ/DEd810kfYVx2zIs/WgV+eJuQoTaZ23U fLHg== X-Gm-Message-State: ALoCoQmRTeWuZtjZERPkqqnO/HgN61qbBqw92xPVAugZMRLYs4h3La+a2rkC76pMn3j7nKqBegqo MIME-Version: 1.0 X-Received: by 10.112.143.3 with SMTP id sa3mr28343433lbb.12.1380660727087; Tue, 01 Oct 2013 13:52:07 -0700 (PDT) Received: by 10.114.96.226 with HTTP; Tue, 1 Oct 2013 13:52:06 -0700 (PDT) In-Reply-To: References: Date: Tue, 1 Oct 2013 22:52:06 +0200 Message-ID: Subject: Re: nodetool cfhistograms refresh From: Rene Kochen To: user@cassandra.apache.org Content-Type: multipart/alternative; boundary=089e011827ae31943804e7b4207d X-Virus-Checked: Checked by ClamAV on apache.org --089e011827ae31943804e7b4207d Content-Type: text/plain; charset=ISO-8859-1 Thanks! Does that mean that cfhistograms scans all Statistics.db files in order to populate the "Row Size" and "Column Count" values? 2013/10/1 Tyler Hobbs > > On Tue, Oct 1, 2013 at 2:34 PM, Rene Kochen wrote: > >> However, "Row Size" and "Column Count" keep the values. When are they >> re-evaluated? > > > They are re-evaluated during compaction. > > > -- > Tyler Hobbs > DataStax > --089e011827ae31943804e7b4207d Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
Thanks!

Does that mean that cfhistograms scans all = Statistics.db files in order to populate the "Row Size" and "= ;Column Count" values?


2013/10/1 Tyler Hobbs <tyler@datastax.com>

On Tue, Oct 1, 2013 at 2:34 PM, Rene Kochen <= rene.kochen@emea.schange.com> wrote:
However, "Row Size" and "Colu= mn Count" keep the values. When are they re-evaluated?

They are re-evaluated during compaction.


--
Tyler Hobbs
DataStax

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