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Date: Thu, 22 Sep 2011 20:18:26 +0000 (UTC)
From: "Rajit (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
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Subject: [jira] [Created] (HDFS-2358) NPE when core-site.xml is misconfirued
 with hos:port is missing in the default filesystem's uri
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NPE when core-site.xml is misconfirued with hos:port is missing in the default filesystem's uri
-----------------------------------------------------------------------------------------------

                 Key: HDFS-2358
                 URL: https://issues.apache.org/jira/browse/HDFS-2358
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 0.20.204.0
            Reporter: Rajit





in core-site.xml if default filesystem's uri is misconfigured , NN does not come up and in NN shows NPE

java.lang.NullPointerException
        at org.apache.hadoop.net.NetUtils.createSocketAddr(NetUtils.java:142)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:195)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.getAddress(NameNode.java:225)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:259)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:458)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1226)
        at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1235)


It is better to give meaningful error messege than NPE

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