Apache9 commented on PR #5486:
URL: https://github.com/apache/hbase/pull/5486#issuecomment-1793397029

   ···
   2023-11-03T19:10:49,850 INFO  [RS_OPEN_REGION-regionserver/021d69fb7740:0-0 
{event_type=M_RS_OPEN_REGION, pid=905}] regionserver.HRegionServer(2186): Post 
open deploy tasks for 
TestProcedurePriority-44,,1699038581512.e1884b745d7f3e59b593a2502c6af4f2., 
pid=905, masterSystemTime=1699038644943
   2023-11-03T19:10:49,851 INFO  [KeepAlivePEWorker-7 {}] 
procedure2.ProcedureExecutor(1413): Finished pid=675, state=SUCCESS, 
hasLock=false; ServerCrashProcedure 021d69fb7740,44905,1699038567953, 
splitWal=true, meta=true in 24.3360 sec
   2023-11-03T19:10:49,851 ERROR [PEWorker-2 {}] 
procedure2.ProcedureExecutor(1668): CODE-BUG: Uncaught runtime exception: 
pid=674, ppid=604, state=RUNNABLE:REGION_STATE_TRANSITION_OPEN, hasLock=true; 
TransitRegionStateProcedure table=TestProcedurePriority-23, 
region=7fb6acde5825e654851fc1918078061d, ASSIGN
   java.lang.NullPointerException: null
        at 
org.apache.hadoop.hbase.master.assignment.RegionStates.addRegionToServer(RegionStates.java:779)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.master.assignment.AssignmentManager.regionOpening(AssignmentManager.java:2037)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.openRegion(TransitRegionStateProcedure.java:279)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.executeFromState(TransitRegionStateProcedure.java:434)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.executeFromState(TransitRegionStateProcedure.java:111)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.procedure2.StateMachineProcedure.execute(StateMachineProcedure.java:188)
 ~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at 
org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.execute(TransitRegionStateProcedure.java:398)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.master.assignment.TransitRegionStateProcedure.execute(TransitRegionStateProcedure.java:111)
 ~[classes/:?]
        at 
org.apache.hadoop.hbase.procedure2.Procedure.doExecute(Procedure.java:921) 
~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at 
org.apache.hadoop.hbase.procedure2.ProcedureExecutor.execProcedure(ProcedureExecutor.java:1649)
 ~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at 
org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeProcedure(ProcedureExecutor.java:1395)
 ~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at 
org.apache.hadoop.hbase.procedure2.ProcedureExecutor.access$1000(ProcedureExecutor.java:75)
 ~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at 
org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.runProcedure(ProcedureExecutor.java:1961)
 ~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at org.apache.hadoop.hbase.trace.TraceUtil.trace(TraceUtil.java:216) 
~[hbase-common-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
        at 
org.apache.hadoop.hbase.procedure2.ProcedureExecutor$WorkerThread.run(ProcedureExecutor.java:1988)
 ~[hbase-procedure-4.0.0-alpha-1-SNAPSHOT.jar:4.0.0-alpha-1-SNAPSHOT]
   ···
   
   There are still some missing places where we fail to create the server state 
node.
   
   Let me dig more.


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