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From "Brahma Reddy Battula (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2906) Null Pointer execption in blockreceiver
Date Tue, 07 Feb 2012 05:06:59 GMT
Null Pointer execption in blockreceiver
---------------------------------------

                 Key: HDFS-2906
                 URL: https://issues.apache.org/jira/browse/HDFS-2906
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 0.23.0
            Reporter: Brahma Reddy Battula


Stared with two DN's and one DN is keep on restarting while write inprogress
{noformat}
2012-02-07 01:03:45,897 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: HOST-10-18-40-23:50010:DataXceiver
error processing WRITE_BLOCK operation  src: /10.18.40.20:23862 dest: /10.18.40.23:50010
java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:151)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:340)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:98)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:66)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:167)
	at java.lang.Thread.run(Thread.java:619)
2012-02-07 01:03:46,083 INFO org.apache.hadoop.hdfs.server.common.Storage: Locking is disabled

{noformat}

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