[HBASE-21037] Hbck needs to call Master.offlineRegion() to clean in-memory state after issuing a RS.closeRegion()

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: 1.2.6
• Component/s: hbck
• Assignee: Hua Xiang
• Reporter: Hua Xiang
• Created: 10/Aug/18 22:36
• Updated: 03/Oct/18 01:21
• Resolved: 03/Oct/18 01:21

Description

In certain cases, hbck issues a RS.closeRegion() to close a region from RS. It does not clean up in-memory state from master for the offlined region and balancer will bring back the closed region, causing region inconsistency. certain codes needs to be reexamined to see a Master.offlineRegion() is needed.