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From "Philippe Gassmann (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-799) NullPointerException in FSDataset
Date Tue, 13 Feb 2007 14:20:05 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-799?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Philippe Gassmann updated HADOOP-799:
-------------------------------------

    Affects Version/s: 0.10.1

Same issue here on a 0.10.1 cluster after upgrading it from a 0.6.1 one.

Note that this issue was not present in the 0.6.1 cluster.

> NullPointerException in FSDataset
> ---------------------------------
>
>                 Key: HADOOP-799
>                 URL: https://issues.apache.org/jira/browse/HADOOP-799
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.9.1, 0.10.1
>            Reporter: Nigel Daley
>         Assigned To: Sameer Paranjpye
>
> Running the smallJobsBenchmark this morning, I got this NPE in one of the datanode logs:
> 2006-12-07 10:58:09,541 INFO org.apache.hadoop.dfs.DataNode: Deleting block blk_-4859335730964457601
> 2006-12-07 10:58:21,548 ERROR org.apache.hadoop.dfs.DataNode: Exception: java.lang.NullPointerException
>         at org.apache.hadoop.dfs.FSDataset.invalidate(FSDataset.java:519)
>         at org.apache.hadoop.dfs.DataNode.offerService(DataNode.java:386)
>         at org.apache.hadoop.dfs.DataNode.run(DataNode.java:1007)
>         at java.lang.Thread.run(Thread.java:595)

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