Jason Dere created HIVE-23061:
---------------------------------

             Summary: LLAP crash due to unhandled exception: Cannot invoke 
unregister on an entity which has not been registered
                 Key: HIVE-23061
                 URL: https://issues.apache.org/jira/browse/HIVE-23061
             Project: Hive
          Issue Type: Bug
          Components: llap
            Reporter: Jason Dere
            Assignee: Jason Dere


The following exception goes uncaught and causes the entire LLAP daemon to shut 
down:
{noformat}
2020-03-17T06:49:11,304 ERROR [ExecutionCompletionThread #0 ()] 
org.apache.hadoop.hive.llap.daemon.impl.LlapDaemon: Thread 
Thread[ExecutionCompletionThread #0,5,main] threw an Exception. Shutting down 
now...
java.lang.IllegalStateException: Cannot invoke unregister on an entity which 
has not been registered
    at com.google.common.base.Preconditions.checkState(Preconditions.java:508) 
~[hive-exec-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.32-1]
    at 
org.apache.hadoop.hive.llap.daemon.impl.QueryInfo$FinishableStateTracker.unregisterForUpdates(QueryInfo.java:256)
 ~[hive-llap-server-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.26-3]
    at 
org.apache.hadoop.hive.llap.daemon.impl.QueryInfo.unregisterFinishableStateUpdate(QueryInfo.java:209)
 ~[hive-llap-server-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.26-3]
    at 
org.apache.hadoop.hive.llap.daemon.impl.QueryFragmentInfo.unregisterForFinishableStateUpdates(QueryFragmentInfo.java:166)
 ~[hive-llap-server-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.26-3]
    at 
org.apache.hadoop.hive.llap.daemon.impl.TaskExecutorService$TaskWrapper.maybeUnregisterForFinishedStateNotifications(TaskExecutorService.java:1177)
 ~[hive-llap-server-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.26-3]
    at 
org.apache.hadoop.hive.llap.daemon.impl.TaskExecutorService$InternalCompletionListener.onSuccess(TaskExecutorService.java:980)
 ~[hive-llap-server-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.26-3]
    at 
org.apache.hadoop.hive.llap.daemon.impl.TaskExecutorService$InternalCompletionListener.onSuccess(TaskExecutorService.java:944)
 ~[hive-llap-server-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.26-3]
    at 
com.google.common.util.concurrent.Futures$CallbackListener.run(Futures.java:1021)
 ~[hive-exec-3.1.0.3.1.4.26-3.jar:3.1.0.3.1.4.32-1]
    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 
~[?:1.8.0_191]
    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 
~[?:1.8.0_191]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
{noformat}



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