[ 
https://issues.apache.org/jira/browse/FLINK-38402?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18029459#comment-18029459
 ] 

Zakelly Lan commented on FLINK-38402:
-------------------------------------

The error log:
{code:java}
04:42:38,158 [    Checkpoint Timer] INFO  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator    [] - Triggering 
checkpoint 132 (type=CheckpointType{name='Checkpoint', 
sharingFilesStrategy=FORWARD_BACKWARD}) @ 1759984958157 for job 
016f9011323742910d6681a28536d9c1.
04:42:38,195 [jobmanager-io-thread-1] WARN  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Error while 
processing AcknowledgeCheckpoint message
java.lang.IllegalStateException: Attempt to reference unknown state: 
525e0fb0-bd67-3b89-84ee-feede17a755a
        at 
org.apache.flink.util.Preconditions.checkState(Preconditions.java:193) 
~[flink-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.state.SharedStateRegistryImpl.registerReference(SharedStateRegistryImpl.java:97)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.state.SharedStateRegistry.registerReference(SharedStateRegistry.java:54)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.state.IncrementalRemoteKeyedStateHandle.registerSharedStates(IncrementalRemoteKeyedStateHandle.java:289)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.OperatorSubtaskState.registerSharedState(OperatorSubtaskState.java:248)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.OperatorSubtaskState.registerSharedStates(OperatorSubtaskState.java:224)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.TaskStateSnapshot.registerSharedStates(TaskStateSnapshot.java:193)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.receiveAcknowledgeMessage(CheckpointCoordinator.java:1246)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.scheduler.ExecutionGraphHandler.lambda$acknowledgeCheckpoint$2(ExecutionGraphHandler.java:109)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.scheduler.ExecutionGraphHandler.lambda$processCheckpointCoordinatorMessage$4(ExecutionGraphHandler.java:139)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.util.MdcUtils.lambda$wrapRunnable$1(MdcUtils.java:70) 
~[flink-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
 [?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 [?:?]
        at java.base/java.lang.Thread.run(Thread.java:833) [?:?]
04:42:39,374 [Source: Custom Source (1/1)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Source: 
Custom Source (1/1)#1 
(44ca439423342499d3d88a32ead805f5_bc764cd8ddf7a0cff126f51c16239658_0_1) 
switched from RUNNING to FINISHED.
04:42:39,374 [Source: Custom Source (1/1)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Freeing task 
resources for Source: Custom Source (1/1)#1 
(44ca439423342499d3d88a32ead805f5_bc764cd8ddf7a0cff126f51c16239658_0_1).
04:42:39,374 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - 
Un-registering task and sending final execution state FINISHED to JobManager 
for task Source: Custom Source (1/1)#1 
44ca439423342499d3d88a32ead805f5_bc764cd8ddf7a0cff126f51c16239658_0_1.
04:42:39,375 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Source: 
Custom Source (1/1) 
(44ca439423342499d3d88a32ead805f5_bc764cd8ddf7a0cff126f51c16239658_0_1) 
switched from RUNNING to FINISHED.
04:42:39,376 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Triggering a 
manual checkpoint for job 016f9011323742910d6681a28536d9c1.
04:52:38,158 [    Checkpoint Timer] INFO  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator    [] - Checkpoint 
132 of job 016f9011323742910d6681a28536d9c1 expired before completing.
04:52:38,159 [    Checkpoint Timer] WARN  
org.apache.flink.runtime.checkpoint.CheckpointFailureManager [] - Failed to 
trigger or complete checkpoint 132 for job 016f9011323742910d6681a28536d9c1. (0 
consecutive failed attempts so far)
org.apache.flink.runtime.checkpoint.CheckpointException: Checkpoint expired 
before completing.
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator$CheckpointCanceller.run(CheckpointCoordinator.java:2340)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.util.MdcUtils.lambda$wrapRunnable$1(MdcUtils.java:70) 
~[flink-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
 [?:?]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) 
[?:?]
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
 [?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
 [?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 [?:?]
        at java.base/java.lang.Thread.run(Thread.java:833) [?:?]
04:52:38,160 [    Checkpoint Timer] INFO  
org.apache.flink.runtime.checkpoint.CheckpointRequestDecider [] - checkpoint 
request time in queue: 598784
04:52:38,161 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Trying to 
recover from a global failure.
org.apache.flink.util.FlinkRuntimeException: Exceeded checkpoint tolerable 
failure threshold. The latest checkpoint failed due to Checkpoint expired 
before completing., view the Checkpoint History tab or the Job Manager log to 
find out why continuous checkpoints failed.
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.checkFailureAgainstCounter(CheckpointFailureManager.java:212)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleJobLevelCheckpointException(CheckpointFailureManager.java:169)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleCheckpointException(CheckpointFailureManager.java:122)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2275)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2254)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator$CheckpointCanceller.run(CheckpointCoordinator.java:2340)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.util.MdcUtils.lambda$wrapRunnable$1(MdcUtils.java:70) 
~[flink-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
 ~[?:?]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) 
~[?:?]
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
 ~[?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
 ~[?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 ~[?:?]
        at java.base/java.lang.Thread.run(Thread.java:833) ~[?:?]
04:52:38,162 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Job Tumbling 
Window Test (016f9011323742910d6681a28536d9c1) switched from state RUNNING to 
FAILING.
org.apache.flink.runtime.JobException: Recovery is suppressed by 
FixedDelayRestartBackoffTimeStrategy(maxNumberRestartAttempts=1, 
backoffTimeMS=0)
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:213)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.handleFailureAndReport(ExecutionFailureHandler.java:163)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.getGlobalFailureHandlingResult(ExecutionFailureHandler.java:137)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.scheduler.DefaultScheduler.handleGlobalFailure(DefaultScheduler.java:337)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.scheduler.UpdateSchedulerNgOnInternalFailuresListener.notifyGlobalFailure(UpdateSchedulerNgOnInternalFailuresListener.java:57)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.DefaultExecutionGraph.failGlobal(DefaultExecutionGraph.java:1142)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.DefaultExecutionGraph$1.lambda$failJob$0(DefaultExecutionGraph.java:494)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.lambda$handleRunAsync$4(PekkoRpcActor.java:460)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.concurrent.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:68)
 ~[flink-rpc-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRunAsync(PekkoRpcActor.java:460)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRpcMessage(PekkoRpcActor.java:225)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.FencedPekkoRpcActor.handleRpcMessage(FencedPekkoRpcActor.java:88)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleMessage(PekkoRpcActor.java:174)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:33) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:29) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction.applyOrElse(PartialFunction.scala:127) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction.applyOrElse$(PartialFunction.scala:126) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:29) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:175) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.Actor.aroundReceive(Actor.scala:547) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.Actor.aroundReceive$(Actor.scala:545) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.actor.AbstractActor.aroundReceive(AbstractActor.scala:229) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.ActorCell.receiveMessage(ActorCell.scala:590) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.ActorCell.invoke(ActorCell.scala:557) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.processMailbox(Mailbox.scala:272) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.run(Mailbox.scala:233) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.exec(Mailbox.scala:245) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) [?:?]
        at 
java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
 [?:?]
        at 
java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) [?:?]
        at 
java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) 
[?:?]
        at 
java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
 [?:?]
Caused by: org.apache.flink.util.FlinkRuntimeException: Exceeded checkpoint 
tolerable failure threshold. The latest checkpoint failed due to Checkpoint 
expired before completing., view the Checkpoint History tab or the Job Manager 
log to find out why continuous checkpoints failed.
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.checkFailureAgainstCounter(CheckpointFailureManager.java:212)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleJobLevelCheckpointException(CheckpointFailureManager.java:169)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleCheckpointException(CheckpointFailureManager.java:122)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2275)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2254)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator$CheckpointCanceller.run(CheckpointCoordinator.java:2340)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.util.MdcUtils.lambda$wrapRunnable$1(MdcUtils.java:70) 
~[flink-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
 ~[?:?]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) 
~[?:?]
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
 ~[?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
 ~[?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 ~[?:?]
        at java.base/java.lang.Thread.run(Thread.java:833) ~[?:?]
04:52:38,163 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Discarding 
the results produced by task execution 
44ca439423342499d3d88a32ead805f5_bc764cd8ddf7a0cff126f51c16239658_0_1.
04:52:38,164 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (1/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1) 
switched from RUNNING to CANCELING.
04:52:38,164 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (2/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1) 
switched from RUNNING to CANCELING.
04:52:38,164 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (3/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1) 
switched from RUNNING to CANCELING.
04:52:38,164 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (4/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1) 
switched from RUNNING to CANCELING.
04:52:38,164 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Sink: Unnamed 
(1/1) (44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1) 
switched from RUNNING to CANCELING.
04:52:38,165 [    Checkpoint Timer] INFO  
org.apache.flink.runtime.checkpoint.CheckpointFailureManager [] - Failed to 
trigger checkpoint for job 016f9011323742910d6681a28536d9c1 since Checkpoint 
triggering task SlidingEventTimeWindows (1/4) of job 
016f9011323742910d6681a28536d9c1 is not being executed at the moment. Aborting 
checkpoint. Failure reason: Not all required tasks are currently running..
04:52:38,165 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Attempting to 
cancel task SlidingEventTimeWindows (2/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1).
04:52:38,165 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (2/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1) 
switched from RUNNING to CANCELING.
04:52:38,165 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Triggering 
cancellation of task code SlidingEventTimeWindows (2/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1).
04:52:38,166 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Attempting to 
cancel task SlidingEventTimeWindows (1/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1).
04:52:38,166 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (1/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1) 
switched from RUNNING to CANCELING.
04:52:38,166 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Triggering 
cancellation of task code SlidingEventTimeWindows (1/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1).
04:52:38,166 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Attempting to 
cancel task SlidingEventTimeWindows (3/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1).
04:52:38,166 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (3/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1) 
switched from RUNNING to CANCELING.
04:52:38,166 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Triggering 
cancellation of task code SlidingEventTimeWindows (3/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1).
04:52:38,167 [SlidingEventTimeWindows (2/4)#1] INFO  
org.apache.flink.state.rocksdb.RocksDBKeyedStateBackend      [] - Closed 
RocksDB State Backend. Cleaning up RocksDB working directory 
/tmp/junit16442770661841230383/junit4388131450508005250/job_016f9011323742910d6681a28536d9c1_op_WindowOperator_0a448493b4782967b150582570326227__2_4__uuid_30360330-8cfc-4071-808a-905c33ef330b.
04:52:38,168 [Channel state writer] INFO  
org.apache.flink.runtime.checkpoint.channel.ChannelStateWriteRequestExecutorImpl
 [] - discarding 1 drained requests
04:52:38,168 [SlidingEventTimeWindows (3/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (3/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1) 
switched from CANCELING to CANCELED.
04:52:38,170 [SlidingEventTimeWindows (3/4)#1] INFO  
org.apache.flink.state.rocksdb.RocksDBKeyedStateBackend      [] - Closed 
RocksDB State Backend. Cleaning up RocksDB working directory 
/tmp/junit16442770661841230383/junit4388131450508005250/job_016f9011323742910d6681a28536d9c1_op_WindowOperator_0a448493b4782967b150582570326227__3_4__uuid_e9805415-f662-4bb6-b30c-2195dc966d35.
04:52:38,173 [SlidingEventTimeWindows (2/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (2/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1) 
switched from CANCELING to CANCELED.
04:52:38,173 [SlidingEventTimeWindows (2/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Freeing task 
resources for SlidingEventTimeWindows (2/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1).
04:52:38,173 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - 
Un-registering task and sending final execution state CANCELED to JobManager 
for task SlidingEventTimeWindows (2/4)#1 
44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1.
04:52:38,173 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (2/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_1_1) 
switched from CANCELING to CANCELED.
04:52:38,173 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Attempting to 
cancel task SlidingEventTimeWindows (4/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1).
04:52:38,174 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (4/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1) 
switched from RUNNING to CANCELING.
04:52:38,174 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Triggering 
cancellation of task code SlidingEventTimeWindows (4/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1).
04:52:38,176 [SlidingEventTimeWindows (1/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (1/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1) 
switched from CANCELING to CANCELED.
04:52:38,176 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Attempting to 
cancel task Sink: Unnamed (1/1)#1 
(44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1).
04:52:38,176 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Sink: Unnamed 
(1/1)#1 (44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1) 
switched from RUNNING to CANCELING.
04:52:38,176 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Triggering 
cancellation of task code Sink: Unnamed (1/1)#1 
(44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1).
04:52:38,176 [Channel state writer] INFO  
org.apache.flink.runtime.checkpoint.channel.ChannelStateWriteRequestExecutorImpl
 [] - discarding 1 drained requests
04:52:38,176 [Sink: Unnamed (1/1)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Sink: Unnamed 
(1/1)#1 (44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1) 
switched from CANCELING to CANCELED.
04:52:38,177 [Sink: Unnamed (1/1)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Freeing task 
resources for Sink: Unnamed (1/1)#1 
(44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1).
04:52:38,178 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - 
Un-registering task and sending final execution state CANCELED to JobManager 
for task Sink: Unnamed (1/1)#1 
44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1.
04:52:38,178 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Sink: Unnamed 
(1/1) (44ca439423342499d3d88a32ead805f5_ea632d67b7d595e5b851708ae9ad79d6_0_1) 
switched from CANCELING to CANCELED.
04:52:38,179 [SlidingEventTimeWindows (4/4)#1] INFO  
org.apache.flink.state.rocksdb.RocksDBKeyedStateBackend      [] - Closed 
RocksDB State Backend. Cleaning up RocksDB working directory 
/tmp/junit16442770661841230383/junit4388131450508005250/job_016f9011323742910d6681a28536d9c1_op_WindowOperator_0a448493b4782967b150582570326227__4_4__uuid_7610d633-9757-4ebe-8754-d1ccbffa64ca.
04:52:38,179 [SlidingEventTimeWindows (1/4)#1] INFO  
org.apache.flink.state.rocksdb.RocksDBKeyedStateBackend      [] - Closed 
RocksDB State Backend. Cleaning up RocksDB working directory 
/tmp/junit16442770661841230383/junit4388131450508005250/job_016f9011323742910d6681a28536d9c1_op_WindowOperator_0a448493b4782967b150582570326227__1_4__uuid_0f34e5b6-5946-403a-a6ab-940e4d41bc80.
04:52:38,181 [SlidingEventTimeWindows (1/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Freeing task 
resources for SlidingEventTimeWindows (1/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1).
04:52:38,182 [SlidingEventTimeWindows (3/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Freeing task 
resources for SlidingEventTimeWindows (3/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1).
04:52:38,182 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - 
Un-registering task and sending final execution state CANCELED to JobManager 
for task SlidingEventTimeWindows (1/4)#1 
44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1.
04:52:38,182 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - 
Un-registering task and sending final execution state CANCELED to JobManager 
for task SlidingEventTimeWindows (3/4)#1 
44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1.
04:52:38,182 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (1/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_0_1) 
switched from CANCELING to CANCELED.
04:52:38,182 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (3/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_2_1) 
switched from CANCELING to CANCELED.
04:52:38,186 [SlidingEventTimeWindows (4/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - 
SlidingEventTimeWindows (4/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1) 
switched from CANCELING to CANCELED.
04:52:38,186 [SlidingEventTimeWindows (4/4)#1] INFO  
org.apache.flink.runtime.taskmanager.Task                    [] - Freeing task 
resources for SlidingEventTimeWindows (4/4)#1 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1).
04:52:38,186 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - 
Un-registering task and sending final execution state CANCELED to JobManager 
for task SlidingEventTimeWindows (4/4)#1 
44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1.
04:52:38,186 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - 
SlidingEventTimeWindows (4/4) 
(44ca439423342499d3d88a32ead805f5_0a448493b4782967b150582570326227_3_1) 
switched from CANCELING to CANCELED.
04:52:38,186 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.executiongraph.ExecutionGraph       [] - Job Tumbling 
Window Test (016f9011323742910d6681a28536d9c1) switched from state FAILING to 
FAILED.
org.apache.flink.runtime.JobException: Recovery is suppressed by 
FixedDelayRestartBackoffTimeStrategy(maxNumberRestartAttempts=1, 
backoffTimeMS=0)
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:213)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.handleFailureAndReport(ExecutionFailureHandler.java:163)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.getGlobalFailureHandlingResult(ExecutionFailureHandler.java:137)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.scheduler.DefaultScheduler.handleGlobalFailure(DefaultScheduler.java:337)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.scheduler.UpdateSchedulerNgOnInternalFailuresListener.notifyGlobalFailure(UpdateSchedulerNgOnInternalFailuresListener.java:57)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.DefaultExecutionGraph.failGlobal(DefaultExecutionGraph.java:1142)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.executiongraph.DefaultExecutionGraph$1.lambda$failJob$0(DefaultExecutionGraph.java:494)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.lambda$handleRunAsync$4(PekkoRpcActor.java:460)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.concurrent.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:68)
 ~[flink-rpc-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRunAsync(PekkoRpcActor.java:460)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRpcMessage(PekkoRpcActor.java:225)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.FencedPekkoRpcActor.handleRpcMessage(FencedPekkoRpcActor.java:88)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleMessage(PekkoRpcActor.java:174)
 ~[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:33) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:29) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction.applyOrElse(PartialFunction.scala:127) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction.applyOrElse$(PartialFunction.scala:126) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:29) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:175) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.Actor.aroundReceive(Actor.scala:547) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.Actor.aroundReceive$(Actor.scala:545) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
org.apache.pekko.actor.AbstractActor.aroundReceive(AbstractActor.scala:229) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.ActorCell.receiveMessage(ActorCell.scala:590) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.actor.ActorCell.invoke(ActorCell.scala:557) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.processMailbox(Mailbox.scala:272) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.run(Mailbox.scala:233) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at org.apache.pekko.dispatch.Mailbox.exec(Mailbox.scala:245) 
[flink-rpc-akkab60457fb-be2b-4138-b67f-b5ee9d434337.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373) [?:?]
        at 
java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
 [?:?]
        at 
java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655) [?:?]
        at 
java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622) 
[?:?]
        at 
java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
 [?:?]
Caused by: org.apache.flink.util.FlinkRuntimeException: Exceeded checkpoint 
tolerable failure threshold. The latest checkpoint failed due to Checkpoint 
expired before completing., view the Checkpoint History tab or the Job Manager 
log to find out why continuous checkpoints failed.
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.checkFailureAgainstCounter(CheckpointFailureManager.java:212)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleJobLevelCheckpointException(CheckpointFailureManager.java:169)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleCheckpointException(CheckpointFailureManager.java:122)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2275)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2254)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator$CheckpointCanceller.run(CheckpointCoordinator.java:2340)
 ~[flink-runtime-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
org.apache.flink.util.MdcUtils.lambda$wrapRunnable$1(MdcUtils.java:70) 
~[flink-core-2.2-SNAPSHOT.jar:2.2-SNAPSHOT]
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
 ~[?:?]
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) 
~[?:?]
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
 ~[?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
 ~[?:?]
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
 ~[?:?]
        at java.base/java.lang.Thread.run(Thread.java:833) ~[?:?]
04:52:38,187 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.checkpoint.CheckpointCoordinator    [] - Stopping 
checkpoint coordinator for job 016f9011323742910d6681a28536d9c1.
04:52:38,190 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.dispatcher.StandaloneDispatcher     [] - Job 
016f9011323742910d6681a28536d9c1 reached terminal state FAILED.
org.apache.flink.runtime.JobException: Recovery is suppressed by 
FixedDelayRestartBackoffTimeStrategy(maxNumberRestartAttempts=1, 
backoffTimeMS=0)
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.handleFailure(ExecutionFailureHandler.java:213)
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.handleFailureAndReport(ExecutionFailureHandler.java:163)
        at 
org.apache.flink.runtime.executiongraph.failover.ExecutionFailureHandler.getGlobalFailureHandlingResult(ExecutionFailureHandler.java:137)
        at 
org.apache.flink.runtime.scheduler.DefaultScheduler.handleGlobalFailure(DefaultScheduler.java:337)
        at 
org.apache.flink.runtime.scheduler.UpdateSchedulerNgOnInternalFailuresListener.notifyGlobalFailure(UpdateSchedulerNgOnInternalFailuresListener.java:57)
        at 
org.apache.flink.runtime.executiongraph.DefaultExecutionGraph.failGlobal(DefaultExecutionGraph.java:1142)
        at 
org.apache.flink.runtime.executiongraph.DefaultExecutionGraph$1.lambda$failJob$0(DefaultExecutionGraph.java:494)
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.lambda$handleRunAsync$4(PekkoRpcActor.java:460)
        at 
org.apache.flink.runtime.concurrent.ClassLoadingUtils.runWithContextClassLoader(ClassLoadingUtils.java:68)
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRunAsync(PekkoRpcActor.java:460)
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleRpcMessage(PekkoRpcActor.java:225)
        at 
org.apache.flink.runtime.rpc.pekko.FencedPekkoRpcActor.handleRpcMessage(FencedPekkoRpcActor.java:88)
        at 
org.apache.flink.runtime.rpc.pekko.PekkoRpcActor.handleMessage(PekkoRpcActor.java:174)
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:33)
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.apply(CaseStatements.scala:29)
        at scala.PartialFunction.applyOrElse(PartialFunction.scala:127)
        at scala.PartialFunction.applyOrElse$(PartialFunction.scala:126)
        at 
org.apache.pekko.japi.pf.UnitCaseStatement.applyOrElse(CaseStatements.scala:29)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:175)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176)
        at scala.PartialFunction$OrElse.applyOrElse(PartialFunction.scala:176)
        at org.apache.pekko.actor.Actor.aroundReceive(Actor.scala:547)
        at org.apache.pekko.actor.Actor.aroundReceive$(Actor.scala:545)
        at 
org.apache.pekko.actor.AbstractActor.aroundReceive(AbstractActor.scala:229)
        at org.apache.pekko.actor.ActorCell.receiveMessage(ActorCell.scala:590)
        at org.apache.pekko.actor.ActorCell.invoke(ActorCell.scala:557)
        at org.apache.pekko.dispatch.Mailbox.processMailbox(Mailbox.scala:272)
        at org.apache.pekko.dispatch.Mailbox.run(Mailbox.scala:233)
        at org.apache.pekko.dispatch.Mailbox.exec(Mailbox.scala:245)
        at 
java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:373)
        at 
java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1182)
        at 
java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1655)
        at 
java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1622)
        at 
java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:165)
Caused by: org.apache.flink.util.FlinkRuntimeException: Exceeded checkpoint 
tolerable failure threshold. The latest checkpoint failed due to Checkpoint 
expired before completing., view the Checkpoint History tab or the Job Manager 
log to find out why continuous checkpoints failed.
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.checkFailureAgainstCounter(CheckpointFailureManager.java:212)
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleJobLevelCheckpointException(CheckpointFailureManager.java:169)
        at 
org.apache.flink.runtime.checkpoint.CheckpointFailureManager.handleCheckpointException(CheckpointFailureManager.java:122)
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2275)
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator.abortPendingCheckpoint(CheckpointCoordinator.java:2254)
        at 
org.apache.flink.runtime.checkpoint.CheckpointCoordinator$CheckpointCanceller.run(CheckpointCoordinator.java:2340)
        at 
org.apache.flink.util.MdcUtils.lambda$wrapRunnable$1(MdcUtils.java:70)
        at 
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
        at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
        at 
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
        at 
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
        at java.base/java.lang.Thread.run(Thread.java:833)
04:52:38,191 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Stopping the 
JobMaster for job 'Tumbling Window Test' (016f9011323742910d6681a28536d9c1).
04:52:38,191 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.checkpoint.StandaloneCompletedCheckpointStore [] - 
Shutting down
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.slotpool.DefaultDeclarativeSlotPool [] - 
Releasing slot [423f4c9fa6575f7afc1188bed280cf61].
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.slotpool.DefaultDeclarativeSlotPool [] - 
Releasing slot [9877936e937bdbba896b147c91f00ee9].
04:52:38,193 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTableImpl [] - Free slot 
TaskSlot(index:3, state:ACTIVE, resource profile: 
ResourceProfile{taskHeapMemory=512.000gb (549755813888 bytes), 
taskOffHeapMemory=512.000gb (549755813888 bytes), managedMemory=64.000mb 
(67108864 bytes), networkMemory=32.000mb (33554432 bytes)}, allocationId: 
423f4c9fa6575f7afc1188bed280cf61, jobId: 016f9011323742910d6681a28536d9c1).
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Disconnect 
TaskExecutor 0e7ad473-ff61-49a5-a0d8-4530824f3591 because: Stopping JobMaster 
for job 'Tumbling Window Test' (016f9011323742910d6681a28536d9c1).
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.slotpool.DefaultDeclarativeSlotPool [] - 
Releasing slot [a1dbcf30c03b51583880cf3da2facf8d].
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.slotpool.DefaultDeclarativeSlotPool [] - 
Releasing slot [63c833f26243e70f2289239c4531b18d].
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Disconnect 
TaskExecutor fbed969c-873d-430e-ad07-b5c44fffaf27 because: Stopping JobMaster 
for job 'Tumbling Window Test' (016f9011323742910d6681a28536d9c1).
04:52:38,193 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.jobmaster.JobMaster                 [] - Close 
ResourceManager connection d3537ee203518c58a7f5503d2a48ed79: Stopping JobMaster 
for job 'Tumbling Window Test' (016f9011323742910d6681a28536d9c1).
04:52:38,194 [                main] INFO  
org.apache.flink.test.util.MiniClusterWithClientResource     [] - Finalization 
triggered: Cluster shutdown is going to be initiated.
04:52:38,194 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTableImpl [] - Free slot 
TaskSlot(index:2, state:ACTIVE, resource profile: 
ResourceProfile{taskHeapMemory=512.000gb (549755813888 bytes), 
taskOffHeapMemory=512.000gb (549755813888 bytes), managedMemory=64.000mb 
(67108864 bytes), networkMemory=32.000mb (33554432 bytes)}, allocationId: 
9877936e937bdbba896b147c91f00ee9, jobId: 016f9011323742910d6681a28536d9c1).
04:52:38,196 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.DefaultJobLeaderService [] - Remove job 
016f9011323742910d6681a28536d9c1 from job leader monitoring.
04:52:38,196 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Close 
JobManager connection for job 016f9011323742910d6681a28536d9c1.
04:52:38,197 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTableImpl [] - Free slot 
TaskSlot(index:2, state:ACTIVE, resource profile: 
ResourceProfile{taskHeapMemory=512.000gb (549755813888 bytes), 
taskOffHeapMemory=512.000gb (549755813888 bytes), managedMemory=64.000mb 
(67108864 bytes), networkMemory=32.000mb (33554432 bytes)}, allocationId: 
a1dbcf30c03b51583880cf3da2facf8d, jobId: 016f9011323742910d6681a28536d9c1).
04:52:38,198 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.slot.TaskSlotTableImpl [] - Free slot 
TaskSlot(index:3, state:ACTIVE, resource profile: 
ResourceProfile{taskHeapMemory=512.000gb (549755813888 bytes), 
taskOffHeapMemory=512.000gb (549755813888 bytes), managedMemory=64.000mb 
(67108864 bytes), networkMemory=32.000mb (33554432 bytes)}, allocationId: 
63c833f26243e70f2289239c4531b18d, jobId: 016f9011323742910d6681a28536d9c1).
04:52:38,199 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.DefaultJobLeaderService [] - Remove job 
016f9011323742910d6681a28536d9c1 from job leader monitoring.
04:52:38,199 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Close 
JobManager connection for job 016f9011323742910d6681a28536d9c1.
04:52:38,199 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager [] - 
Disconnect job manager 
bd5fdb7c01cf1d2f61908db374794108@pekko://flink/user/rpc/jobmanager_119 for job 
016f9011323742910d6681a28536d9c1 from the resource manager.
04:52:38,199 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.DefaultSlotStatusSyncer [] 
- Freeing slot 423f4c9fa6575f7afc1188bed280cf61.
04:52:38,199 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.DefaultSlotStatusSyncer [] 
- Freeing slot 9877936e937bdbba896b147c91f00ee9.
04:52:38,199 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.DefaultSlotStatusSyncer [] 
- Freeing slot a1dbcf30c03b51583880cf3da2facf8d.
04:52:38,199 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.DefaultSlotStatusSyncer [] 
- Freeing slot 63c833f26243e70f2289239c4531b18d.
04:52:38,202 [                main] INFO  
org.apache.flink.runtime.minicluster.MiniCluster             [] - Shutting down 
Flink Mini Cluster
04:52:38,202 [                main] INFO  
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint   [] - Shutting down 
rest endpoint.
04:52:38,202 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Stopping 
TaskExecutor pekko://flink/user/rpc/taskmanager_115.
04:52:38,202 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Close 
ResourceManager connection d3537ee203518c58a7f5503d2a48ed79.
04:52:38,202 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.state.TaskExecutorStateChangelogStoragesManager [] - 
Shutting down TaskExecutorStateChangelogStoragesManager.
04:52:38,202 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.state.TaskExecutorChannelStateExecutorFactoryManager 
[] - Shutting down TaskExecutorChannelStateExecutorFactoryManager.
04:52:38,203 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Stopping 
TaskExecutor pekko://flink/user/rpc/taskmanager_116.
04:52:38,203 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Close 
ResourceManager connection d3537ee203518c58a7f5503d2a48ed79.
04:52:38,203 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.state.TaskExecutorStateChangelogStoragesManager [] - 
Shutting down TaskExecutorStateChangelogStoragesManager.
04:52:38,203 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.state.TaskExecutorChannelStateExecutorFactoryManager 
[] - Shutting down TaskExecutorChannelStateExecutorFactoryManager.
04:52:38,203 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.DefaultJobLeaderService [] - Stop job 
leader service.
04:52:38,203 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.state.TaskExecutorLocalStateStoresManager [] - 
Shutting down TaskExecutorLocalStateStoresManager.
04:52:38,203 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.io.disk.FileChannelManagerImpl      [] - 
FileChannelManager removed spill file directory 
/tmp/junit6653902172981396921/junit5062915932061227284/flink-io-ce4f705c-5f35-459b-b80e-90a63a1fcbe4
04:52:38,203 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.io.network.NettyShuffleEnvironment  [] - Shutting down 
the network environment and its components.
04:52:38,205 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.DefaultJobLeaderService [] - Stop job 
leader service.
04:52:38,205 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.state.TaskExecutorLocalStateStoresManager [] - 
Shutting down TaskExecutorLocalStateStoresManager.
04:52:38,207 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.io.disk.FileChannelManagerImpl      [] - 
FileChannelManager removed spill file directory 
/tmp/junit6653902172981396921/junit5062915932061227284/flink-io-b8e788be-f934-4636-b50b-12edd2a07ad4
04:52:38,207 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.io.network.NettyShuffleEnvironment  [] - Shutting down 
the network environment and its components.
04:52:38,207 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.io.network.netty.NettyClient        [] - Successful 
shutdown (took 3 ms).
04:52:38,208 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.io.network.netty.NettyServer        [] - Successful 
shutdown (took 0 ms).
04:52:38,208 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.io.disk.FileChannelManagerImpl      [] - 
FileChannelManager removed spill file directory 
/tmp/junit6653902172981396921/junit5062915932061227284/flink-netty-shuffle-286747a7-5939-4eed-b9f0-623283f7ed34
04:52:38,208 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.KvStateService         [] - Shutting down 
the kvState service and its components.
04:52:38,208 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.DefaultJobLeaderService [] - Stop job 
leader service.
04:52:38,209 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.filecache.FileCache                 [] - removed file 
cache directory 
/tmp/junit6653902172981396921/junit5062915932061227284/flink-dist-cache-566be7c2-868b-435f-afcf-dc01f7a0a87b
04:52:38,209 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Stopped 
TaskExecutor pekko://flink/user/rpc/taskmanager_115.
04:52:38,209 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.io.network.netty.NettyClient        [] - Successful 
shutdown (took 2 ms).
04:52:38,209 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.io.network.netty.NettyServer        [] - Successful 
shutdown (took 0 ms).
04:52:38,209 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.io.disk.FileChannelManagerImpl      [] - 
FileChannelManager removed spill file directory 
/tmp/junit6653902172981396921/junit5062915932061227284/flink-netty-shuffle-c83575ce-0880-44f6-af91-8944cc39f306
04:52:38,209 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.KvStateService         [] - Shutting down 
the kvState service and its components.
04:52:38,209 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.DefaultJobLeaderService [] - Stop job 
leader service.
04:52:38,209 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager [] - Closing 
TaskExecutor connection fbed969c-873d-430e-ad07-b5c44fffaf27 because: The 
TaskExecutor is shutting down.
04:52:38,209 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager [] 
- Unregistering task executor 8abe98e5e90a11b79c00823937d48dda from the slot 
manager.
04:52:38,210 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager [] - Closing 
TaskExecutor connection 0e7ad473-ff61-49a5-a0d8-4530824f3591 because: The 
TaskExecutor is shutting down.
04:52:38,210 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager [] 
- Unregistering task executor b8bb9dcfb117d105af3ffe5e07a4305b from the slot 
manager.
04:52:38,210 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.filecache.FileCache                 [] - removed file 
cache directory 
/tmp/junit6653902172981396921/junit5062915932061227284/flink-dist-cache-3d37a7b5-e55b-4009-8a2f-fe501e615d0d
04:52:38,210 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.taskexecutor.TaskExecutor           [] - Stopped 
TaskExecutor pekko://flink/user/rpc/taskmanager_116.
04:52:38,211 [          Thread-908] INFO  
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint   [] - Removing 
cache directory /tmp/flink-web-ui
04:52:38,211 [          Thread-908] INFO  
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint   [] - 
http://localhost:43339 lost leadership
04:52:38,211 [          Thread-908] INFO  
org.apache.flink.runtime.dispatcher.DispatcherRestEndpoint   [] - Shut down 
complete.
04:52:38,211 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.resourcemanager.StandaloneResourceManager [] - Shut 
down cluster because application is in CANCELED, diagnostics 
DispatcherResourceManagerComponent has been closed..
04:52:38,211 [          Thread-908] INFO  
org.apache.flink.runtime.entrypoint.component.DispatcherResourceManagerComponent
 [] - Closing components.
04:52:38,211 [          Thread-908] INFO  
org.apache.flink.runtime.dispatcher.runner.SessionDispatcherLeaderProcess [] - 
Stopping SessionDispatcherLeaderProcess.
04:52:38,211 [          Thread-908] INFO  
org.apache.flink.runtime.resourcemanager.ResourceManagerServiceImpl [] - 
Stopping resource manager service.
04:52:38,211 [   pool-216-thread-1] INFO  
org.apache.flink.runtime.resourcemanager.ResourceManagerServiceImpl [] - 
Resource manager service is not running. Ignore revoking leadership.
04:52:38,212 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.dispatcher.StandaloneDispatcher     [] - Stopping 
dispatcher pekko://flink/user/rpc/dispatcher_118.
04:52:38,212 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.dispatcher.StandaloneDispatcher     [] - Stopping all 
currently running jobs of dispatcher pekko://flink/user/rpc/dispatcher_118.
04:52:38,212 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.security.token.DefaultDelegationTokenManager [] - 
Stopping credential renewal
04:52:38,212 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.security.token.DefaultDelegationTokenManager [] - 
Stopped credential renewal
04:52:38,212 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager [] 
- Closing the slot manager.
04:52:38,212 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.resourcemanager.slotmanager.FineGrainedSlotManager [] 
- Suspending the slot manager.
04:52:38,213 [flink-pekko.actor.default-dispatcher-5] INFO  
org.apache.flink.runtime.dispatcher.StandaloneDispatcher     [] - Stopped 
dispatcher pekko://flink/user/rpc/dispatcher_118.
04:52:38,214 [RpcService-Supervisor-Termination-Future-Executor-thread-1] INFO  
org.apache.flink.runtime.rpc.pekko.PekkoRpcService           [] - Stopping 
Pekko RPC service.
04:52:38,217 [     flink-metrics-6] INFO  
org.apache.pekko.actor.CoordinatedShutdown                   [] - Running 
CoordinatedShutdown with reason [ActorSystemTerminateReason]
04:52:38,229 [     flink-metrics-6] INFO  
org.apache.flink.runtime.rpc.pekko.PekkoRpcService           [] - Stopping 
Pekko RPC service.
04:52:38,229 [     flink-metrics-6] INFO  
org.apache.flink.runtime.rpc.pekko.PekkoRpcService           [] - Stopped Pekko 
RPC service.
04:52:38,231 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.pekko.actor.CoordinatedShutdown                   [] - Running 
CoordinatedShutdown with reason [ActorSystemTerminateReason]
04:52:38,237 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.blob.PermanentBlobCache             [] - Shutting down 
BLOB cache
04:52:38,238 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.blob.TransientBlobCache             [] - Shutting down 
BLOB cache
04:52:38,238 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.blob.BlobServer                     [] - Stopped BLOB 
server at 0.0.0.0:33317
04:52:38,238 [flink-pekko.actor.default-dispatcher-7] INFO  
org.apache.flink.runtime.rpc.pekko.PekkoRpcService           [] - Stopped Pekko 
RPC service.
04:52:38,242 [                main] ERROR 
org.apache.flink.test.checkpointing.EventTimeWindowCheckpointingITCase [] - 
{code}
There was a suspicious 'Attempt to reference unknown state: 
525e0fb0-bd67-3b89-84ee-feede17a755a', which I guess may cause the checkpoint 
cannot finish until expired.  Any thoughts? [~roman]

> EventTimeWindowCheckpointingITCase failed in test_cron_azure tests
> ------------------------------------------------------------------
>
>                 Key: FLINK-38402
>                 URL: https://issues.apache.org/jira/browse/FLINK-38402
>             Project: Flink
>          Issue Type: Bug
>          Components: Tests
>    Affects Versions: 2.2.0
>            Reporter: Ruan Hang
>            Priority: Major
>
> Details:
> https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=69810&view=logs&j=39d5b1d5-3b41-54dc-6458-1e2ddd1cdcf3&t=115e5c38-6efb-5006-4921-5e2851da71ef



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