[HDFS-7383] DataNode.requestShortCircuitFdsForRead may throw NullPointerException

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.6.0
• Component/s: datanode
• Target Version/s: 2.6.0
• Hadoop Flags: Reviewed
• Assignee: Tsz-wo Sze
• Reporter: Tsz-wo Sze
• Created: 09/Nov/14 00:39
• Updated: 01/Dec/14 03:10
• Resolved: 10/Nov/14 01:59

Description

java.lang.NullPointerException
	at org.apache.hadoop.hdfs.server.datanode.DataNode.requestShortCircuitFdsForRead(DataNode.java:1525)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.requestShortCircuitFds(DataXceiver.java:286)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opRequestShortCircuitFds(Receiver.java:185)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:89)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:234)
	at java.lang.Thread.run(Thread.java:745)