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Date: Mon, 21 May 2012 23:18:41 +0000 (UTC)
From: "Brandon Li (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-3415) During NameNode starting up, it may
 pick wrong storage directory inspector when the layout versions of the
 storage directories are different
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     [ https://issues.apache.org/jira/browse/HDFS-3415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brandon Li updated HDFS-3415:
-----------------------------

    Attachment: HDFS-3415.patch

Fix the warning.
The test failures are unrelated. 
                
> During NameNode starting up, it may pick wrong storage directory inspector when the layout versions of the storage directories are different
> --------------------------------------------------------------------------------------------------------------------------------------------
>
>                 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
>            Assignee: Brandon Li
>         Attachments: HDFS-3415.patch, HDFS-3415.patch, HDFS-3415.patch, HDFS-3415.patch
>
>
> 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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