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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3509) FSNamesystem.close() throws NullPointerException
Date Fri, 06 Jun 2008 23:28:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12603228#action_12603228

Tsz Wo (Nicholas), SZE commented on HADOOP-3509:

Passed ant test and ant test-patch locally.

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

     [exec]     -1 tests included.  The patch doesn't appear to include any new or modified
     [exec]                         Please justify why no tests are needed for this patch.

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

     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler

     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.

> FSNamesystem.close() throws NullPointerException
> ------------------------------------------------
>                 Key: HADOOP-3509
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3509
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: 3509_20080606.patch, 3509_20080606b.patch, 3509_20080606c.patch
> During NameNode startup, if there is an exception thrown before FSNamesystem.dir is created,
we will get a NullPointerException.
> {noformat}
> 2008-06-06 12:07:21,203 ERROR org.apache.hadoop.dfs.NameNode: java.lang.NullPointerException
> 	at org.apache.hadoop.dfs.FSNamesystem.close(FSNamesystem.java:465)
> 	at org.apache.hadoop.dfs.FSNamesystem.<init>(FSNamesystem.java:253)
> 	at org.apache.hadoop.dfs.NameNode.initialize(NameNode.java:148)
> 	at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:193)
> 	at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:179)
> 	at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:822)
> 	at org.apache.hadoop.dfs.NameNode.main(NameNode.java:831)
> {noformat}

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