Return-Path: 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 6D7F71809F for ; Thu, 3 Dec 2015 21:33:12 +0000 (UTC) Received: (qmail 88057 invoked by uid 500); 3 Dec 2015 21:33:11 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 87971 invoked by uid 500); 3 Dec 2015 21:33:11 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 87885 invoked by uid 99); 3 Dec 2015 21:33:11 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 03 Dec 2015 21:33:11 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 125E92C1F6F for ; Thu, 3 Dec 2015 21:33:11 +0000 (UTC) Date: Thu, 3 Dec 2015 21:33:11 +0000 (UTC) From: "Tsz Wo Nicholas Sze (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Resolved] (HDFS-2220) balancer.Balancer: java.lang.NullPointerException while HADOOP_CONF_DIR is empty or wrong 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-2220?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Tsz Wo Nicholas Sze resolved HDFS-2220. --------------------------------------- Resolution: Cannot Reproduce Let's resolve this as Cannot Reproduce. > balancer.Balancer: java.lang.NullPointerException while HADOOP_CONF_DIR is empty or wrong > ----------------------------------------------------------------------------------------- > > Key: HDFS-2220 > URL: https://issues.apache.org/jira/browse/HDFS-2220 > Project: Hadoop HDFS > Issue Type: Bug > Components: balancer & mover > Affects Versions: 0.20.204.0 > Reporter: Rajit Saha > > When HADOOP_CONF_DIR is empty or wrongly set and balancer is called without proper --config , in clientside STDOUT we get NPE. > $ echo $HADOOP_CONF_DIR > $ hadoop balancer > Balancing took 46.0 milliseconds > 11/06/13 05:14:04 ERROR balancer.Balancer: java.lang.NullPointerException > at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:136) > at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:176) > at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:206) > at org.apache.hadoop.hdfs.server.namenode.NameNode.getServiceAddress(NameNode.java:200) > at org.apache.hadoop.hdfs.server.balancer.Balancer.createNamenode(Balancer.java:911) > at org.apache.hadoop.hdfs.server.balancer.Balancer.init(Balancer.java:860) > at org.apache.hadoop.hdfs.server.balancer.Balancer.run(Balancer.java:1475) > at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) > at org.apache.hadoop.hdfs.server.balancer.Balancer.main(Balancer.java:811) > I think it would be good to give more meaningful error messege instead of NPE -- This message was sent by Atlassian JIRA (v6.3.4#6332)