After inspect，I think there is no problem with HBASE-27332, but it exposes another potential problem， I file HBASE-27362 to try to fix it.
At 2022-09-07 20:23:03, "[email protected]" <[email protected]> wrote: >We can see many test such as TestRegionSplit.testSplitTableRegion hang because >of HBASE-27332 now. After HBASE-27332 removed RejectHandler, the default >handler is AbortPolicy, though StealJobQueue is unbound, but if >ThreadPoolExecutor is shutdowning, it also reject the task and throws >RejectedExecutionException. Maybe we should roll back it first and then >inspect.
