[HBASE-16812] Clean up the locks in MOB

• Type: Task
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: mob
• Hadoop Flags: Reviewed
• Release Note: In MOB-enabled column family, the lock in the major compaction is removed. All the delete markers are retained in the major compaction, and a MOB reference tag is appended to each of the retained delete markers.
• Assignee: Jingcheng Du
• Reporter: Apekshit Sharma
• Created: 12/Oct/16 00:59
• Updated: 31/Jan/17 07:50
• Resolved: 31/Jan/17 06:24

Description

Clean up the locks in MOB.

1. Retain all the delete markers in mob-enabled columns until they are expired.
2. Remove the locks from major compaction of mob-enabled columns.