[HBASE-16716] OfflineMetaRepair leaves empty directory inside /hbase/WALs which remains forever

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 1.4.0, 2.0.0
• Component/s: hbck
• Hadoop Flags: Reviewed
• Assignee: Pankaj Kumar
• Reporter: Pankaj Kumar
• Created: 27/Sep/16 06:39
• Updated: 14/Oct/16 14:22
• Resolved: 13/Oct/16 02:42

Description

OfflineMetaRepair rebuild Meta table, while creating meta region it creates it's own WAL (inside /hbase/WALs/hbck-meta-recovery-<randomNumber>) which wll be closed and archived after rebuilding Meta.

hbase org.apache.hadoop.hbase.util.hbck.OfflineMetaRepair
    >> /hbase/WALs/hbck-meta-recovery-<randomNumber>

It doesn't clear the empty dir, empty directory should be removed after success.