[HBASE-21644] Modify table procedure runs infinitely for a table having region replication > 1

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.0.0-alpha-1, 2.1.1, 2.1.2
• Fix Version/s: 3.0.0-alpha-1, 2.2.0, 2.1.3, 2.0.5, 2.3.0
• Component/s: Admin
• Hadoop Flags: Reviewed
• Assignee: Nihal Jain
• Reporter: Nihal Jain
• Created: 26/Dec/18 20:16
• Updated: 23/Jun/22 19:28
• Resolved: 31/Jan/19 11:48

Description

Steps to reproduce

1. Create a table with region replication set to a value greater than 1
2. Modify any of the table properties, say max file size

Expected Result
The modify table should succeed and run to completion.

Actual Result
The modify table keep running infinitely

Analysis/Issue
The problem occurs due to inifinitely looping between states REOPEN_TABLE_REGIONS_REOPEN_REGIONS and REOPEN_TABLE_REGIONS_CONFIRM_REOPENED of ReopenTableRegionsProcedure, called as part of ModifyTableProcedure.

Consequences
For a table having region replicas:

• Any modify table operation fails to complete
• Also, enable table replication fails to complete as it is unable to change the replication scope of the table in source cluster

Issue Links

• relates to: HBASE-20792 info:servername and info:sn inconsistent for OPEN region
• supercedes: HBASE-20817 Infinite loop when executing ReopenTableRegionsProcedure