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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3415) During NameNode starting up, it may pick wrong storage directory inspector when the layout versions of the storage directories are different
Date Wed, 23 May 2012 14:04:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13281614#comment-13281614
] 

Hudson commented on HDFS-3415:
------------------------------

Integrated in Hadoop-Mapreduce-trunk #1088 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1088/])
    HDFS-3415. Make sure all layout versions are the same for all storage directories in the
Namenode.  Contributed by Brandon Li (Revision 1341676)

     Result = SUCCESS
szetszwo : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1341676
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/NNStorage.java

                
> 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
>             Fix For: 2.0.1
>
>         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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