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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-615) TestLargeDirectoryDelete fails with NullPointerException
Date Fri, 18 Dec 2009 05:16:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Konstantin Boudnik updated HDFS-615:
------------------------------------

    Attachment: HDFS-615.patch

Even though it seems to be like a threading issue I have a strong feeling that {{MiniDFSCluster#waitActive()}}
does wrong thing. So, I'd suggest to include something like the content of the attached patch.

> TestLargeDirectoryDelete fails with NullPointerException
> --------------------------------------------------------
>
>                 Key: HDFS-615
>                 URL: https://issues.apache.org/jira/browse/HDFS-615
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.21.0
>         Environment: 64-bit debian 5, 64-bit sun java6, running in a single processor
VM.
>            Reporter: Eli Collins
>            Priority: Minor
>         Attachments: HDFS-615.patch, TestLargeDirectoryDelete.zip
>
>
> I've hit the following failure two out of two times running "ant test" at rev 813587.
This test doesn't appear to be failing on hudson. All other tests passed except TestHDFSFileSystemContract
which timed out, so perhaps there's a race due to the test executing slowly. 
>     [junit] Running org.apache.hadoop.hdfs.server.namenode.TestLargeDirectoryDelete
>     [junit] Exception in thread "Thread-30148" java.lang.NullPointerException
>     [junit] 	at org.apache.hadoop.hdfs.server.namenode.NameNodeAdapter.getNamesystem(NameNodeAdapter.java:32)
>     [junit] 	at org.apache.hadoop.hdfs.MiniDFSCluster.getNamesystem(MiniDFSCluster.java:522)
>     [junit] 	at org.apache.hadoop.hdfs.server.namenode.TestLargeDirectoryDelete.getBlockCount(TestLargeDirectoryDelete.java:75)
>     [junit] 	at org.apache.hadoop.hdfs.server.namenode.TestLargeDirectoryDelete.access$000(TestLargeDirectoryDelete.java:38)
>     [junit] 	at org.apache.hadoop.hdfs.server.namenode.TestLargeDirectoryDelete$1.run(TestLargeDirectoryDelete.java:90)
>     [junit] Tests run: 1, Failures: 0, Errors: 0, Time elapsed: 94.264 sec
>                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^  No failures or errors?
>   public static FSNamesystem getNamesystem(NameNode namenode) {
>     return namenode.getNamesystem();                                                
          <===========
>   }

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