[HBASE-25639] meta replica state is not respected during active master switch

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.0.6, 2.1.9, 2.2.6, 2.3.4
• Fix Version/s: 2.3.5
• Component/s: meta replicas
• Assignee: Huaxiang Sun
• Reporter: Huaxiang Sun
• Created: 05/Mar/21 19:31
• Updated: 20/Mar/21 00:48
• Resolved: 18/Mar/21 18:38

Description

We saw this warning in master log.

WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No RegionStateNode for hbase:meta,,1_0003 but reported as up on server1.example.com,16020,1614958467735; closing...

 

The root cause is that meta replica regions are in zookeeper, and these state are not iterated by the new active master so it loses track.

Issue Links

• is fixed by: HBASE-25164 Make ModifyTableProcedure support changing meta replica count
• links to: GitHub Pull Request #3052