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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1935) NullPointerException in internalReleaseCreate
Date Sat, 29 Sep 2007 06:04:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12531212
] 

Hadoop QA commented on HADOOP-1935:
-----------------------------------

-1 overall.  Here are the results of testing the latest attachment 
http://issues.apache.org/jira/secure/attachment/12366794/npePendingCreate2.patch
against trunk revision r580487.

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

    javadoc +1.  The javadoc tool did not generate any warning messages.

    javac +1.  The applied patch does not generate any new compiler warnings.

    findbugs -1.  The patch appears to introduce 1 new Findbugs warnings.

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

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

Test results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/848/testReport/
Findbugs warnings: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/848/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/848/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://lucene.zones.apache.org:8080/hudson/job/Hadoop-Patch/848/console

This message is automatically generated.

> NullPointerException in internalReleaseCreate
> ---------------------------------------------
>
>                 Key: HADOOP-1935
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1935
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.15.0
>            Reporter: Konstantin Shvachko
>            Assignee: dhruba borthakur
>            Priority: Blocker
>             Fix For: 0.15.0
>
>         Attachments: npePendingCreate2.patch
>
>
> The exception occurs during abandonFileInProgress().
> {code}
> 07/09/21 13:59:28 ERROR fs.FSNamesystem: java.lang.NullPointerException
>         at org.apache.hadoop.dfs.FSNamesystem.internalReleaseCreate(FSNamesystem.java:1494)
>         at org.apache.hadoop.dfs.FSNamesystem.access$100(FSNamesystem.java:50)
>         at org.apache.hadoop.dfs.FSNamesystem$Lease.releaseLocks(FSNamesystem.java:1385)
>         at org.apache.hadoop.dfs.FSNamesystem$LeaseMonitor.run(FSNamesystem.java:1447)
>         at java.lang.Thread.run(Thread.java:595)
> {code}
> My guess is that the client sends abandonFileInProgress() after create(), which timed
out and was not executed by the name-node.
> That is why dir.getFileINode(src) returns null in internalReleaseCreate().

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