Return-Path: X-Original-To: apmail-hbase-user-archive@www.apache.org Delivered-To: apmail-hbase-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 5831C927B for ; Tue, 24 Jan 2012 13:34:48 +0000 (UTC) Received: (qmail 46076 invoked by uid 500); 24 Jan 2012 13:34:46 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 45942 invoked by uid 500); 24 Jan 2012 13:34:45 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 45934 invoked by uid 99); 24 Jan 2012 13:34:43 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Jan 2012 13:34:43 +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 mikael.sitruk@gmail.com designates 209.85.215.41 as permitted sender) Received: from [209.85.215.41] (HELO mail-lpp01m010-f41.google.com) (209.85.215.41) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Jan 2012 13:34:37 +0000 Received: by lagw12 with SMTP id w12so3234318lag.14 for ; Tue, 24 Jan 2012 05:34:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Ru2z3P+prI21OdTdfwdwWXRBXgw+KthUgMcjyLfvoHA=; b=lqMINhjavTAMjf/GF3DuiJO/eSsX2OPboN9U2gBZm/tc4ufsNgyA+iPvMeQ8JwT0BR fZzKzsvQ7+MR6gkwHTD4gExLUX0y+qii/JJc6V27+wWm4hKY0BiWa8yKpuciitXzV2OP hoMmeaX1D5IL9zMBKNI3weeTZAsCdcDJR4IK8= MIME-Version: 1.0 Received: by 10.112.83.197 with SMTP id s5mr3324539lby.9.1327412056567; Tue, 24 Jan 2012 05:34:16 -0800 (PST) Received: by 10.112.10.9 with HTTP; Tue, 24 Jan 2012 05:34:16 -0800 (PST) In-Reply-To: References: <1D3249C5-D35F-4A5E-BA64-D9D02F987268@langisch.ch> Date: Tue, 24 Jan 2012 15:34:16 +0200 Message-ID: Subject: Re: early memstore flushings From: Mikael Sitruk To: user@hbase.apache.org Content-Type: multipart/alternative; boundary=f46d04016a691a2eac04b74634ca X-Virus-Checked: Checked by ClamAV on apache.org --f46d04016a691a2eac04b74634ca Content-Type: text/plain; charset=UTF-8 Your memstore may be flushed also in case the number of HLog reach its maximum, in this case your memstore may not reach the max size allocated for it. Mikael.S On Tue, Jan 24, 2012 at 1:00 AM, Jean-Daniel Cryans wrote: > It flushes when it reaches the memstore size, not plus the global max > memstore size. > > J-D > > On Mon, Jan 23, 2012 at 2:50 PM, Yves Langisch wrote: > > Hi, > > > > I'm currently looking through all the metrics hbase provides and I don't > understand the memstore flushing behavior I see. I thought the memstore is > not flushed until it reaches the maximum memstore size plus the flush size. > In my case this would be 1.6GB+128MB. But I see the following graph: > > > > http://dl.dropbox.com/u/395716/memstore.gif > > > > What's the reason for such early flushes? > > > > - > > Yves > -- Mikael.S --f46d04016a691a2eac04b74634ca--