[HBASE-22365] Region may be opened on two RegionServers

• Type: Improvement
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.2.0, 2.3.0
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.3.0
• Component/s: amv2
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Guanghao Zhang
• Created: 05/May/19 10:24
• Updated: 15/May/19 08:21
• Resolved: 13/May/19 08:21

Description

Found this problem when run ITBLL with our internal branch which is based on branch-2.2. So mark this as a blocker for 2.2.0. A region 7ebdca9cd09e26074749b546586e2156 is moved from RS-st99 to RS-st98 and the TRSP succeed. Meanwhile, RS-st99 crashed and schedule a new SCP for RS-st99. So SCP initialized subprocedures for 7ebdca9cd09e26074749b546586e2156, too. Then the 7ebdca9cd09e26074749b546586e2156 was assigned to two RegionServers.

Issue Links

• is broken by: HBASE-22074 Should use procedure store to persist the state in reportRegionStateTransition
• links to: GitHub Pull Request #221