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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (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)
Date Fri, 18 May 2012 02:08:10 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13278505#comment-13278505
] 

Hadoop QA commented on HDFS-3415:
---------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12527967/HDFS-3415.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    -1 javadoc.  The javadoc tool appears to have generated 2 warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/2466//testReport/
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/2466//console

This message is automatically generated.
                
> 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
>            Assignee: Brandon Li
>         Attachments: 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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