From hdfs-dev-return-6672-apmail-hadoop-hdfs-dev-archive=hadoop.apache.org@hadoop.apache.org Sat May 12 15:13:10 2012 Return-Path: X-Original-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-dev-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id CEFAEC285 for ; Sat, 12 May 2012 15:13:10 +0000 (UTC) Received: (qmail 64597 invoked by uid 500); 12 May 2012 15:13:10 -0000 Delivered-To: apmail-hadoop-hdfs-dev-archive@hadoop.apache.org Received: (qmail 64482 invoked by uid 500); 12 May 2012 15:13:10 -0000 Mailing-List: contact hdfs-dev-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-dev@hadoop.apache.org Delivered-To: mailing list hdfs-dev@hadoop.apache.org Received: (qmail 64472 invoked by uid 99); 12 May 2012 15:13:10 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 May 2012 15:13:10 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=5.0 tests=ALL_TRUSTED,T_RP_MATCHES_RCVD X-Spam-Check-By: apache.org Received: from [140.211.11.116] (HELO hel.zones.apache.org) (140.211.11.116) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 12 May 2012 15:13:09 +0000 Received: from hel.zones.apache.org (hel.zones.apache.org [140.211.11.116]) by hel.zones.apache.org (Postfix) with ESMTP id 10C844920A2 for ; Sat, 12 May 2012 15:12:49 +0000 (UTC) Date: Sat, 12 May 2012 15:12:49 +0000 (UTC) From: "Ashish Singhi (JIRA)" To: hdfs-dev@hadoop.apache.org Message-ID: <1988266601.58446.1336835569070.JavaMail.tomcat@hel.zones.apache.org> Subject: [jira] [Created] (HDFS-3411) Balancer fails to balance blocks between aboveAvgUtilized and belowAvgUtilized datanodes. MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 X-Virus-Checked: Checked by ClamAV on apache.org Ashish Singhi created HDFS-3411: ----------------------------------- Summary: Balancer fails to balance blocks between aboveAvgUtilized and belowAvgUtilized datanodes. Key: HDFS-3411 URL: https://issues.apache.org/jira/browse/HDFS-3411 Project: Hadoop HDFS Issue Type: Bug Components: balancer Affects Versions: 0.23.0 Reporter: Ashish Singhi Fix For: 2.0.0, 3.0.0 Scaenario: replication set to 1. 1. Start 1NN and IDN 2. pump 1GB of data. 3. Start one more DN 4. Run balancer with threshold 1. Now DN1 is added into aboveAvgUtilizedDatanodes and DN2 into belowAvgUtilizedDatanodes. Hence overLoadedBytes and underLoadedBytes will be equal to 0. Resulting in bytesLeftToMove equal to 0. Thus balancer will exit without balancing the blocks. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira