[HBASE-21330] ReopenTableRegionsProcedure will enter an infinite loop if we schedule a TRSP at the same time

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.0.0-alpha-1, 2.2.0
• Component/s: amv2
• Hadoop Flags: Reviewed
• Assignee: Duo Zhang
• Reporter: Duo Zhang
• Created: 17/Oct/18 07:28
• Updated: 18/Oct/18 12:08
• Resolved: 18/Oct/18 03:38

Description

The problem is that, if there are regions which already have TRSPs with them, we will give up and just to REOPEN_TABLE_REGIONS_CONFIRM_REOPENED directly. And in REOPEN_TABLE_REGIONS_CONFIRM_REOPENED, if there are still regions need to be reopened, we will just back to REOPEN_TABLE_REGIONS_REOPEN_REGIONS directly. And since ReopenTableRegionsProcedure holds the exclusive lock on table, the TRSP will not have chance to execute, and the result is that, the ReopenTableRegionsProcedure just keep looping in the two states.