[jira] [Created] (HDFS-4701) race condition between block recovery and removal of block pool can cause block recovery thread to exit with NullPointerException

Mon, 15 Apr 2013 17:14:16 -0700 

Chris Nauroth created HDFS-4701:
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             Summary: race condition between block recovery and removal of 
block pool can cause block recovery thread to exit with NullPointerException
                 Key: HDFS-4701
                 URL: https://issues.apache.org/jira/browse/HDFS-4701
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: datanode
    Affects Versions: 3.0.0
            Reporter: Chris Nauroth


I saw this happen once while shutting down a datanode: a NullPointerException 
thrown from a block recovery thread.

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