[HDFS-4067] TestUnderReplicatedBlocks may fail due to ReplicaAlreadyExistsException

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 3.0.0-alpha1
• Component/s: test
• Labels: test-fail
• Hadoop Flags: Reviewed
• Assignee: Jing Zhao
• Reporter: Eli Collins
• Created: 17/Oct/12 04:53
• Updated: 13/May/16 05:20
• Resolved: 25/Oct/12 18:33

Description

After adding the timeout to TestUnderReplicatedBlocks in HDFS-4061 we can see the root cause of the failure is ReplicaAlreadyExistsException:

org.apache.hadoop.hdfs.server.datanode.ReplicaAlreadyExistsException: Block BP-1541130889-172.29.121.238-1350435573411:blk_-3437032108997618258_1002 already exists in state FINALIZED and thus cannot be created.
	at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.createTemporary(FsDatasetImpl.java:799)
	at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.createTemporary(FsDatasetImpl.java:90)
	at org.apache.hadoop.hdfs.server.datanode.BlockReceiver.<init>(BlockReceiver.java:155)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.writeBlock(DataXceiver.java:393)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.opWriteBlock(Receiver.java:98)
	at org.apache.hadoop.hdfs.protocol.datatransfer.Receiver.processOp(Receiver.java:66)
	at org.apache.hadoop.hdfs.server.datanode.DataXceiver.run(DataXceiver.java:219)

Issue Links

• duplicates: HDFS-342 Reduce time taken to run TestUnderReplicatedBlocks
• relates to: HDFS-4998 TestUnderReplicatedBlocks fails intermittently