Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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1.12.1, 1.13.0
Description
The CheckpointCoordinatorTest.testMinCheckpointPause fails fatally on AZP. The problem seems to be that the test fails first:
Test testMinCheckpointPause(org.apache.flink.runtime.checkpoint.CheckpointCoordinatorTest) failed with: java.lang.AssertionError: expected:<1> but was:<0> at org.junit.Assert.fail(Assert.java:88) at org.junit.Assert.failNotEquals(Assert.java:834) at org.junit.Assert.assertEquals(Assert.java:645) at org.junit.Assert.assertEquals(Assert.java:631) at org.apache.flink.runtime.checkpoint.CheckpointCoordinatorTest.testMinCheckpointPause(CheckpointCoordinatorTest.java:190) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26) at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48) at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55) at org.junit.rules.RunRules.evaluate(RunRules.java:20) at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) at org.junit.runners.ParentRunner.run(ParentRunner.java:363) at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365) at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273) at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238) at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159) at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384) at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345) at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126) at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
and then the process fails fatally because we try to enqueue something into the CheckpointCoordinator after the ExecutorService has been shut down.
12:20:17,785 [ pool-3-thread-1] ERROR org.apache.flink.runtime.util.FatalExitExceptionHandler [] - FATAL: Thread 'pool-3-thread-1' produced an uncaught exception. Stopping the process... java.util.concurrent.CompletionException: java.util.concurrent.CompletionException: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@219d5491 rejected from java.util.concurrent.ScheduledThreadPoolExecutor@649fd666[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 8] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.lambda$startTriggeringCheckpoint$8(CheckpointCoordinator.java:652) ~[classes/:?] at java.util.concurrent.CompletableFuture.uniExceptionally(CompletableFuture.java:884) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.uniExceptionallyStage(CompletableFuture.java:898) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.exceptionally(CompletableFuture.java:2209) ~[?:1.8.0_275] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.startTriggeringCheckpoint(CheckpointCoordinator.java:649) ~[classes/:?] at java.util.Optional.ifPresent(Optional.java:159) [?:1.8.0_275] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.triggerCheckpoint(CheckpointCoordinator.java:533) [classes/:?] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.triggerCheckpoint(CheckpointCoordinator.java:515) [classes/:?] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator$ScheduledTrigger.run(CheckpointCoordinator.java:1841) [classes/:?] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_275] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [?:1.8.0_275] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [?:1.8.0_275] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [?:1.8.0_275] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_275] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_275] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275] Caused by: java.util.concurrent.CompletionException: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@219d5491 rejected from java.util.concurrent.ScheduledThreadPoolExecutor@649fd666[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 8] at java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:273) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:280) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:838) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.uniHandleStage(CompletableFuture.java:851) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.handleAsync(CompletableFuture.java:2178) ~[?:1.8.0_275] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.startTriggeringCheckpoint(CheckpointCoordinator.java:597) ~[classes/:?] ... 11 more Caused by: java.util.concurrent.RejectedExecutionException: Task java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask@219d5491 rejected from java.util.concurrent.ScheduledThreadPoolExecutor@649fd666[Shutting down, pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 8] at java.util.concurrent.ThreadPoolExecutor$AbortPolicy.rejectedExecution(ThreadPoolExecutor.java:2063) ~[?:1.8.0_275] at java.util.concurrent.ThreadPoolExecutor.reject(ThreadPoolExecutor.java:830) ~[?:1.8.0_275] at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:326) ~[?:1.8.0_275] at java.util.concurrent.ScheduledThreadPoolExecutor.schedule(ScheduledThreadPoolExecutor.java:533) ~[?:1.8.0_275] at java.util.concurrent.ScheduledThreadPoolExecutor.execute(ScheduledThreadPoolExecutor.java:622) ~[?:1.8.0_275] at java.util.concurrent.Executors$DelegatedExecutorService.execute(Executors.java:668) ~[?:1.8.0_275] at org.apache.flink.runtime.concurrent.ScheduledExecutorServiceAdapter.execute(ScheduledExecutorServiceAdapter.java:64) ~[classes/:?] at java.util.concurrent.CompletableFuture$UniCompletion.claim(CompletableFuture.java:543) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.uniHandle(CompletableFuture.java:826) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture$UniHandle.tryFire(CompletableFuture.java:811) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.uniHandleStage(CompletableFuture.java:851) ~[?:1.8.0_275] at java.util.concurrent.CompletableFuture.handleAsync(CompletableFuture.java:2178) ~[?:1.8.0_275] at org.apache.flink.runtime.checkpoint.CheckpointCoordinator.startTriggeringCheckpoint(CheckpointCoordinator.java:597) ~[classes/:?] ... 11 more
Looking at the code, the problem should also be present in the current master.
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