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 A0F149D79 for ; Wed, 28 Mar 2012 16:45:31 +0000 (UTC) Received: (qmail 56490 invoked by uid 500); 28 Mar 2012 16:45:29 -0000 Delivered-To: apmail-hbase-user-archive@hbase.apache.org Received: (qmail 56445 invoked by uid 500); 28 Mar 2012 16:45:29 -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 56437 invoked by uid 99); 28 Mar 2012 16:45:29 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 28 Mar 2012 16:45:29 +0000 X-ASF-Spam-Status: No, hits=-0.7 required=5.0 tests=RCVD_IN_DNSWL_LOW,SPF_PASS X-Spam-Check-By: apache.org Received-SPF: pass (athena.apache.org: domain of saint.ack@gmail.com designates 209.85.220.169 as permitted sender) Received: from [209.85.220.169] (HELO mail-vx0-f169.google.com) (209.85.220.169) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 28 Mar 2012 16:45:24 +0000 Received: by vcbfk14 with SMTP id fk14so1241006vcb.14 for ; Wed, 28 Mar 2012 09:45:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type; bh=GAwz2WnI7/WWDP0lPB7y+6m1HlkGhIu0cOyHmbj+JFs=; b=aMXHjrygDwAcohkBmmrHDmd9LPAZ2QUzMvXOAjr8UT1ipuVKQMPMwSP9BuBQYDenTS Fu0RuJSNEas+Bt2qbPRWgk3G7JEQkJAHyCHUNViG6gJm10UK+yCUrCp71HS0dcsAnP9Y AkIUPnKZs7XTFR9TQ00nzgdqRI7144e8oDyDPnCWgfl2/4JQKUGTRQ+yj8amm+qNKRqT GSj1mp+YJQW3kkjjLYWwN7RWA+pktGAqDMYVamH9bSqHuBSIgnubqrYAXPVbsr5gqzir btz1xMLVE6uqwZmT3Fl1CG3K6DGDmabA6evQS2nS0F7DgnvfKENslC8AnbJtSpvX27xi CP1Q== MIME-Version: 1.0 Received: by 10.220.116.10 with SMTP id k10mr14381270vcq.25.1332953104148; Wed, 28 Mar 2012 09:45:04 -0700 (PDT) Sender: saint.ack@gmail.com Received: by 10.220.149.129 with HTTP; Wed, 28 Mar 2012 09:45:04 -0700 (PDT) In-Reply-To: References: Date: Wed, 28 Mar 2012 09:45:04 -0700 X-Google-Sender-Auth: 1rOddEo2-GNnUPi9GusPpfAFuAQ Message-ID: Subject: Re: Get failing rarely by retrieving the next row From: Stack To: user@hbase.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org On Wed, Mar 28, 2012 at 7:49 AM, Whitney Sorenson wrote: > This happens reliably when we run large jobs against our cluster which > perform many reads and writes, but it does not always happen on the > same keys. > Interesting. Anything you can figure about a particular key if you dig in some? For example, could the key be at a region boundary or was the region moving/splitting at the time? Once you've found a bad key, does it stay bad? If so, that'd be useful trying to debug. It may have been fixed already but I've not done the research. St.Ack