[HDFS-5558] LeaseManager monitor thread can crash if the last block is complete but another block is not.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.9, 2.3.0
• Fix Version/s: 0.23.10, 2.3.0
• Target Version/s: 0.23.11
• Hadoop Flags: Reviewed
• Assignee: Kihwal Lee
• Reporter: Kihwal Lee
• Created: 23/Nov/13 02:04
• Updated: 19/Nov/14 23:16
• Resolved: 03/Dec/13 14:17

Description

As mentioned in HDFS-5557, if a file has its last and penultimate block not completed and the file is being closed, the last block may be completed but the penultimate one might not. If this condition lasts long and the file is abandoned, LeaseManager will try to recover the lease and the block. But internalReleaseLease() will fail with invalid cast exception with this kind of file.

Issue Links

• relates to: HDFS-7342 Lease Recovery doesn't happen some times