[HDFS-15403] NPE in FileIoProvider#transferToSocketFully

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.2.2, 3.3.1, 3.4.0
• Fix Version/s: 3.2.2, 3.3.1, 3.4.0
• Component/s: datanode
• Target Version/s: 3.2.2, 3.3.1, 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Hemanth Boyina
• Reporter: Hemanth Boyina
• Created: 09/Jun/20 18:54
• Updated: 11/Feb/24 12:47
• Resolved: 15/Jun/20 00:24

Description

[DataXceiver for client  at /127.0.0.1:41904 [Sending block BP-293397713-127.0.1.1-1591535936877:blk_-9223372036854775786_1001]] ERROR datanode.DataNode (DataXceiver.java:run(324)) - 127.0.0.1:34789:DataXceiver error processing READ_BLOCK operation  src: /127.0.0.1:41904 dst: /127.0.0.1:34789[DataXceiver for client  at /127.0.0.1:41904 [Sending block BP-293397713-127.0.1.1-1591535936877:blk_-9223372036854775786_1001]] ERROR datanode.DataNode (DataXceiver.java:run(324)) - 127.0.0.1:34789:DataXceiver error processing READ_BLOCK operation  src: /127.0.0.1:41904 dst: /127.0.0.1:34789java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.datanode.FileIoProvider.transferToSocketFully(FileIoProvider.java:283)
at org.apache.hadoop.hdfs.server.datanode.BlockSender.sendPacket(BlockSender.java:614)
at org.apache.hadoop.hdfs.server.datanode.BlockSender.doSendBlock(BlockSender.java:809)
at org.apache.hadoop.hdfs.server.datanode.BlockSender.sendBlock(BlockSender.java:756)
at org.apache.hadoop.hdfs.server.datanode.DataXceiver.readBlock(DataXceiver.java:610)
at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opReadBlock(Receiver.java:152)
at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:104
at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:292)
at java.lang.Thread.run(Thread.java:748)