Return-Path: 
 <hdfs-issues-return-58456-apmail-hadoop-hdfs-issues-archive=hadoop.apache.org@hadoop.apache.org>
X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org
Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org
Received: from mail.apache.org (hermes.apache.org [140.211.11.3])
	by minotaur.apache.org (Postfix) with SMTP id E6D4DDAA5
	for <apmail-hadoop-hdfs-issues-archive@minotaur.apache.org>;
 Thu,  7 Mar 2013 02:50:13 +0000 (UTC)
Received: (qmail 53334 invoked by uid 500); 7 Mar 2013 02:50:13 -0000
Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org
Received: (qmail 53234 invoked by uid 500); 7 Mar 2013 02:50:13 -0000
Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
List-Help: <mailto:hdfs-issues-help@hadoop.apache.org>
List-Unsubscribe: <mailto:hdfs-issues-unsubscribe@hadoop.apache.org>
List-Post: <mailto:hdfs-issues@hadoop.apache.org>
List-Id: <hdfs-issues.hadoop.apache.org>
Reply-To: hdfs-issues@hadoop.apache.org
Delivered-To: mailing list hdfs-issues@hadoop.apache.org
Received: (qmail 53121 invoked by uid 99); 7 Mar 2013 02:50:13 -0000
Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28)
    by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 07 Mar 2013 02:50:13 +0000
Date: Thu, 7 Mar 2013 02:50:13 +0000 (UTC)
From: "Junping Du (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
Message-ID: <JIRA.12635549.1362568208923.396754.1362624613223@arcas>
In-Reply-To: <JIRA.12635549.1362568208923@arcas>
References: <JIRA.12635549.1362568208923@arcas>
Subject: [jira] [Updated] (HDFS-4558) start balancer failed with NPE
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394


     [ https://issues.apache.org/jira/browse/HDFS-4558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junping Du updated HDFS-4558:
-----------------------------

     Target Version/s: 1.2.0
    Affects Version/s: 1.1.2
    
> start balancer failed with NPE
> ------------------------------
>
>                 Key: HDFS-4558
>                 URL: https://issues.apache.org/jira/browse/HDFS-4558
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: balancer
>    Affects Versions: 1.1.2
>            Reporter: wenwupeng
>            Assignee: Junping Du
>            Priority: Critical
>             Fix For: 1.2.0
>
>
> start balancer failed with NPE
>  File this issue to track for QE and dev take a look
> balancer.log:
>  2013-03-06 00:19:55,174 ERROR org.apache.hadoop.hdfs.server.balancer.Balancer: java.lang.NullPointerException
>  at org.apache.hadoop.hdfs.server.namenode.BlockPlacementPolicy.getInstance(BlockPlacementPolicy.java:165)
>  at org.apache.hadoop.hdfs.server.balancer.Balancer.checkReplicationPolicyCompatibility(Balancer.java:799)
>  at org.apache.hadoop.hdfs.server.balancer.Balancer.<init>(Balancer.java:808)
>  at org.apache.hadoop.hdfs.server.balancer.Balancer.main(Balancer.java:831)
> Balancer.java
>  private void checkReplicationPolicyCompatibility(Configuration conf)
>  throws UnsupportedActionException {
>  if (!(BlockPlacementPolicy.getInstance(conf, null, null) <== here
>  instanceof BlockPlacementPolicyDefault)) 
> { throw new UnsupportedActionException( "Balancer without BlockPlacementPolicyDefault"); }
>  }

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira