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From "Eli Collins (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4201) NPE in BPServiceActor#sendHeartBeat
Date Fri, 16 Nov 2012 21:29:12 GMT
Eli Collins created HDFS-4201:
---------------------------------

             Summary: NPE in BPServiceActor#sendHeartBeat
                 Key: HDFS-4201
                 URL: https://issues.apache.org/jira/browse/HDFS-4201
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: name-node
            Reporter: Eli Collins


Saw the following NPE in a log.

Think this is likely due to {{dn}} or {{dn.getFSDataset()}} being null, (not {{bpRegistration}})
due to a configuration or local directory failure.

{code}
2012-09-25 04:33:20,782 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: For namenode
svsrs00127/11.164.162.226:8020 using DELETEREPORT_INTERVAL of 300000 msec  BLOCKREPORT_INTERVAL
of 21600000msec Initial delay: 0msec; heartBeatInterval=3000
2012-09-25 04:33:20,782 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in
BPOfferService for Block pool BP-1678908700-11.164.162.226-1342785481826 (storage id DS-1031100678-11.164.162.251-5010-1341933415989)
service to svsrs00127/11.164.162.226:8020
java.lang.NullPointerException
        at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.sendHeartBeat(BPServiceActor.java:434)
        at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.offerService(BPServiceActor.java:520)
        at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:673)
        at java.lang.Thread.run(Thread.java:722)
{code}

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