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 F305E9DC9 for ; Mon, 19 Sep 2011 18:05:03 +0000 (UTC) Received: (qmail 24200 invoked by uid 500); 19 Sep 2011 18:05:01 -0000 Delivered-To: apmail-cassandra-user-archive@cassandra.apache.org Received: (qmail 24174 invoked by uid 500); 19 Sep 2011 18:05:01 -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 24166 invoked by uid 99); 19 Sep 2011 18:05:01 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 Sep 2011 18:05:01 +0000 X-ASF-Spam-Status: No, hits=0.6 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,FROM_12LTRDOM,RCVD_IN_DNSWL_LOW,SPF_PASS,T_TO_NO_BRKTS_FREEMAIL X-Spam-Check-By: apache.org Received-SPF: pass (nike.apache.org: domain of eczech52@gmail.com designates 74.125.83.42 as permitted sender) Received: from [74.125.83.42] (HELO mail-gw0-f42.google.com) (74.125.83.42) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 19 Sep 2011 18:04:54 +0000 Received: by gwb17 with SMTP id 17so5900778gwb.29 for ; Mon, 19 Sep 2011 11:04:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:from:date:x-google-sender-auth:message-id :subject:to:content-type; bh=bmloDOF3/AtoR39Twe/VVOIiXM2BtU59S2fq98GMEr4=; b=qHlrGzVp3G8lt75A/wFxYZH2IbTUQ9uXPbjd2RJyhJmKmfBZBAm8IJ1Q2AG1gen1u/ Azqck5AQ5oVWcDmhwmzkf8m9uXsYuhh0e/j1J7gai8FvIf7o3oaL7FnNKiuXJ4YrlbJC qKws4hpgXMih1k+w12+lFj7SJsIrLJfzwqjIE= Received: by 10.42.167.72 with SMTP id r8mr5156533icy.20.1316455473091; Mon, 19 Sep 2011 11:04:33 -0700 (PDT) MIME-Version: 1.0 Sender: eczech52@gmail.com Received: by 10.42.218.10 with HTTP; Mon, 19 Sep 2011 11:04:13 -0700 (PDT) From: Eric Czech Date: Mon, 19 Sep 2011 19:04:13 +0100 X-Google-Sender-Auth: Dz2a5BTeRU_3NQbRn5g-Y6oEack Message-ID: Subject: mmap segment underflow To: user@cassandra.apache.org Content-Type: text/plain; charset=ISO-8859-1 X-Virus-Checked: Checked by ClamAV on apache.org I'm getting a lot of errors that look something like "java.io.IOError: java.io.IOException: mmap segment underflow; remaining is 348268797 but 892417075 requested" on one node in a 10 node cluster. I'm currently running version 0.8.4 but this is data that was carried over from much earlier versions. Should I try to run scrub or are there any other general guidelines for dealing with this sort of error? Thanks everyone!