Tsz Wo Nicholas Sze created HDFS-7884:
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Summary: NullPointerException in BlockSender
Key: HDFS-7884
URL: https://issues.apache.org/jira/browse/HDFS-7884
Project: Hadoop HDFS
Issue Type: Bug
Components: datanode
Reporter: Tsz Wo Nicholas Sze
Priority: Blocker
{noformat}
java.lang.NullPointerException
at
org.apache.hadoop.hdfs.server.datanode.BlockSender.<init>(BlockSender.java:264)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.readBlock(DataXceiver.java:506)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opReadBlock(Receiver.java:116)
at
org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:71)
at
org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:249)
at java.lang.Thread.run(Thread.java:745)
{noformat}
BlockSender.java:264 is shown below
{code}
this.volumeRef = datanode.data.getVolume(block).obtainReference();
{code}
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