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Date: Sun, 13 May 2012 13:44:48 +0000 (UTC)
From: "Brahma Reddy Battula (JIRA)" <jira@apache.org>
To: hdfs-dev@hadoop.apache.org
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 <166824854.59642.1336916688527.JavaMail.tomcat@hel.zones.apache.org>
Subject: [jira] [Created] (HDFS-3415) NameNode is getting shutdown by
 throwing nullpointer exception when one of the layout version is different
 with others(Multiple storage dirs are configured)
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Brahma Reddy Battula created HDFS-3415:
------------------------------------------

             Summary: NameNode is getting shutdown by throwing nullpointer exception when one of the layout version is different with others(Multiple storage dirs are configured)
                 Key: HDFS-3415
                 URL: https://issues.apache.org/jira/browse/HDFS-3415
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
    Affects Versions: 2.0.0, 3.0.0
         Environment: Suse linux + jdk 1.6
            Reporter: Brahma Reddy Battula
             Fix For: 2.0.0, 3.0.0


Scenario:
=========
start Namenode and datanode by configuring three storage dir's for namenode
write 10 files
edit version file of one of the storage dir and give layout version as 123 which different with default(-40).
Stop namenode
start Namenode.


Then I am getting follwong exception...


{noformat}
2012-05-13 19:01:41,483 ERROR org.apache.hadoop.hdfs.server.namenode.NameNode: Exception in namenode join
java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.namenode.NNStorage.getStorageFile(NNStorage.java:686)
	at org.apache.hadoop.hdfs.server.namenode.FSImagePreTransactionalStorageInspector.getEditsInStorageDir(FSImagePreTransactionalStorageInspector.java:243)
	at org.apache.hadoop.hdfs.server.namenode.FSImagePreTransactionalStorageInspector.getLatestEditsFiles(FSImagePreTransactionalStorageInspector.java:261)
	at org.apache.hadoop.hdfs.server.namenode.FSImagePreTransactionalStorageInspector.getEditLogStreams(FSImagePreTransactionalStorageInspector.java:276)
	at org.apache.hadoop.hdfs.server.namenode.FSImage.loadFSImage(FSImage.java:596)
	at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:247)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:498)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:390)
	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:354)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:368)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:402)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:564)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:545)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1093)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1151)
2012-05-13 19:01:41,485 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: SHUTDOWN_MSG: 

{noformat}


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