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HBASE-21508
Ignore the reportRegionStateTransition call from a dead server
WALProcedure may remove proc wal files still with active procedures
Backport "HBASE-21463 The checkOnlineRegionsReport can accidentally complete a TRSP" to branch-2.1 and branch-2.0
Should not persist the dispatched field for RegionRemoteProcedureBase
Add more comments about how we do fencing for WALProcedureStore
Retry on reportRegionStateTransition can lead to unexpected errors
The checkOnlineRegionsReport can accidentally complete a TRSP
Procedures for meta table/region should be able to execute in separate workers
Do not kill RS if reportOnlineRegions fails
Abort split/merge procedure if there is a table procedure of the same table going on
Procedure with holdlock=false should not be restored lock when restarts
Add debug log for procedure stack id related operations
Add some verbose log to MasterProcedureScheduler
Revisit the lock and queue implementation in MasterProcedureScheduler
Procedure holds the lock should put to front of the queue after restart
Rewrite the buildingHoldCleanupTracker method in WALProcedureStore
Procedure may be deleted improperly during master restarts resulting in 'Corrupt'
Polish the rollback implementation in ProcedureExecutor
The force update thread may have race with PE worker when the procedure is rolling back
Simplify the implementation of WALProcedureMap
ReopenTableRegionsProcedure will enter an infinite loop if we schedule a TRSP at the same time
Should not skip force updating for a sub procedure even if it has been finished
Backport HBASE-21278 to branch-2.1 and branch-2.0
The getActiveMinProcId and getActiveMaxProcId of BitSetNode are incorrect if there are no active procedure
The implementation of BitSetNode is not efficient
TransitRegionStateProcedure should not fail with FAILED_OPEN when acting as a sub procedure
HostingServer in UnassignProcedure is not accurate
Do not rollback successful sub procedures when rolling back a procedure
Add more tests for procedure store related classes
Need to find a way to limit the number of proc wal files
Refactor WALProcedureStore and add more comments for better understanding the implementation
Add jitter for ProcedureUtil.getBackoffTimeMs
Skip persistence when retrying for assignment related procedures
Use CompatRemoteProcedureResolver to dispatch open/close region requests to RS
Load procedure wals with multiple threads
Rename the closed procedure wal files so that we do not need to call recoverLease when restarting
Allow the procedure implementation to skip persistence of the state after a execution
Implement exponential retrying backoff for Assign/UnassignRegionHandler introduced in HBASE-21217
Revisit the close region related code at RS side
Revisit the executeProcedure method for open/close region
Race in region opening and load balancing can cause region stuck in RIT
Reimplement the retry backoff logic for ReopenTableRegionsProcedure
ReopenTableRegionsProcedure sometimes hangs
The timeout retry logic for several procedures are broken after master restarts
Remove the explicit timeout config for TestTruncateTableProcedure
Move TestCreateTableProcedure.testMRegions to a separated file
Adding getter methods to some private fields in ProcedureV2 module
Introduce a mechanism to bypass the execution of a stuck procedure
Reimplement assign/unassign related procedure metrics
Confirm that we can (rolling) upgrade from 2.0.x and 2.1.x to 2.2.x after HBASE-20881