[HDFS-7660] BlockReceiver#close() might be called multiple times, which causes the fsvolume reference being released incorrectly.

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha1
• Fix Version/s: 2.7.0
• Target Version/s: 2.7.0
• Assignee: Lei (Eddy) Xu
• Reporter: Lei (Eddy) Xu
• Created: 22/Jan/15 19:25
• Updated: 12/May/16 18:11
• Resolved: 23/Jan/15 03:33

Description

BlockReceiver.close() might be called from multiple places, e.g. PacketResponder#finalizeBlock and BlockReceiver#receiveBlock.
As a result, BlockReceiver#replicaHander should be set to null after release the resource.

Issue Links

• relates to: HDFS-7496 Fix FsVolume removal race conditions on the DataNode by reference-counting the volume instances