[jira] Issue Comment Edited: (HADOOP-1935) NullPointerException in internalReleaseCreate

["Konstantin Shvachko (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-1935?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12531122 ] 

shv edited comment on HADOOP-1935 at 9/28/07 12:19 PM:
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I'd add that file does not exist. Also formatting should be corrected, long line.
{code}
      NameNode.stateChangeLog.warn("DIR* NameSystem.internalReleaseCreate: "
                                   + "attempt to release a create lock on "
                                   + src.toString() + " file does not exist.");
{code}

You did not get rid of the NPE. Probably need to return. 


      was (Author: shv):
    I'd add that file does not exist. Also formatting should be corrected, long line.
{code}
      NameNode.stateChangeLog.warn("DIR* NameSystem.internalReleaseCreate: "
                                   + "attempt to release a create lock on "
                                   + src.toString() + " file does not exist.");
{code}

  
> 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: npePendingCreate.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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