[HDFS-1948] Forward port 'hdfs-1520 lightweight namenode operation to trigger lease reccovery'

• Type: Task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.22.0
• Hadoop Flags: Reviewed
• Release Note: Adds method to NameNode/ClientProtocol that allows for rude revoke of lease on current lease holder
• Assignee: Michael Stack
• Reporter: Michael Stack
• Created: 17/May/11 05:31
• Updated: 12/Dec/11 06:19
• Resolved: 07/Jun/11 17:45

Description

This issue is about forward porting from branch-0.20-append the little namenode api that facilitates stealing of a file's lease. The forward port would be an adaption of hdfs-1520 and its companion patches, hdfs-1555 and hdfs-1554, to suit the TRUNK.

Intent is to get this fix into 0.22 time willing; i'll run a vote to get ok on getting it added to branch. HBase needs this facility.

Issue Links

• is related to: HDFS-1520 HDFS 20 append: Lightweight NameNode operation to trigger lease recovery
• is related to: HDFS-1554 Append 0.20: New semantics for recoverLease
• is related to: HDFS-1555 HDFS 20 append: Disallow pipeline recovery if a file is already being lease recovered