[HDFS-9124] NullPointerException when underreplicated blocks are there

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.7.1
• Fix Version/s: 2.7.4
• Assignee: Syed Akram
• Reporter: Syed Akram
• Created: 22/Sep/15 17:03
• Updated: 12/Feb/16 18:42
• Resolved: 12/Feb/16 18:42

Description

2015-09-22 09:48:47,830 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: dn1:50010:DataXceiver error processing WRITE_BLOCK operation src: /dn1:42973 dst: /dn2:50010
java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:186)
at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:677)
at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:137)
at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:74)
at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:251)
at java.lang.Thread.run(Thread.java:744)

Issue Links

• duplicates: HDFS-9574 Reduce client failures during datanode restart