Dian Fu created FLINK-18533:
-------------------------------

             Summary: AccumulatorLiveITCase.testStreaming hangs
                 Key: FLINK-18533
                 URL: https://issues.apache.org/jira/browse/FLINK-18533
             Project: Flink
          Issue Type: Test
          Components: Tests
    Affects Versions: 1.12.0
            Reporter: Dian Fu


[https://dev.azure.com/apache-flink/apache-flink/_build/results?buildId=4350&view=logs&j=39d5b1d5-3b41-54dc-6458-1e2ddd1cdcf3&t=a99e99c7-21cd-5a1f-7274-585e62b72f56]

{code}
2020-07-08T21:46:15.4438026Z Printing stack trace of Java process 40159
2020-07-08T21:46:15.4442864Z 
==============================================================================
2020-07-08T21:46:15.4475676Z Picked up JAVA_TOOL_OPTIONS: 
-XX:+HeapDumpOnOutOfMemoryError
2020-07-08T21:46:15.7672746Z 2020-07-08 21:46:15
2020-07-08T21:46:15.7673349Z Full thread dump OpenJDK 64-Bit Server VM 
(25.242-b08 mixed mode):
2020-07-08T21:46:15.7673590Z 
2020-07-08T21:46:15.7673893Z "Attach Listener" #86 daemon prio=9 os_prio=0 
tid=0x00007fef8c025800 nid=0x1b231 runnable [0x0000000000000000]
2020-07-08T21:46:15.7674242Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7674419Z 
2020-07-08T21:46:15.7675150Z "flink-taskexecutor-io-thread-2" #85 daemon prio=5 
os_prio=0 tid=0x00007fef9c020000 nid=0xb03a waiting on condition 
[0x00007fefac1f3000]
2020-07-08T21:46:15.7675964Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7676249Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7680997Z    - parking to wait for  <0x0000000087180a20> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7681506Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7682009Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7682666Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7683100Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7683554Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7684013Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7684371Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7684559Z 
2020-07-08T21:46:15.7685213Z "Flink-DispatcherRestEndpoint-thread-4" #84 daemon 
prio=5 os_prio=0 tid=0x00007fef90431800 nid=0x9e49 waiting on condition 
[0x00007fef7df4a000]
2020-07-08T21:46:15.7685665Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7686052Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7686707Z    - parking to wait for  <0x0000000087180cc0> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7687184Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7687721Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7688342Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
2020-07-08T21:46:15.7688935Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7689579Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7690451Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7690928Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7691317Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7691502Z 
2020-07-08T21:46:15.7692183Z "Flink-DispatcherRestEndpoint-thread-3" #83 daemon 
prio=5 os_prio=0 tid=0x00007fefa01e2800 nid=0x9dc9 waiting on condition 
[0x00007fef7f1f4000]
2020-07-08T21:46:15.7692636Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7692920Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7693647Z    - parking to wait for  <0x0000000087180cc0> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7694105Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7694595Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7695178Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
2020-07-08T21:46:15.7695746Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7696445Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7696933Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7697394Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7697794Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7697986Z 
2020-07-08T21:46:15.7698687Z "Flink-DispatcherRestEndpoint-thread-2" #82 daemon 
prio=5 os_prio=0 tid=0x00007fefa01e1800 nid=0x9d97 waiting on condition 
[0x00007fef7e34c000]
2020-07-08T21:46:15.7699367Z    java.lang.Thread.State: TIMED_WAITING (parking)
2020-07-08T21:46:15.7699671Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7700328Z    - parking to wait for  <0x0000000087180cc0> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7701040Z    at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
2020-07-08T21:46:15.7701692Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
2020-07-08T21:46:15.7702310Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
2020-07-08T21:46:15.7702916Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7703457Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7704029Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7709397Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7709844Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7710036Z 
2020-07-08T21:46:15.7710763Z "Thread-23" #71 prio=5 os_prio=0 
tid=0x00007fef81ddc800 nid=0x9d5e waiting on condition [0x00007fef7ebf0000]
2020-07-08T21:46:15.7711170Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7711465Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7712165Z    - parking to wait for  <0x00000000871812a0> (a 
java.util.concurrent.CompletableFuture$Signaller)
2020-07-08T21:46:15.7712594Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7713049Z    at 
java.util.concurrent.CompletableFuture$Signaller.block(CompletableFuture.java:1707)
2020-07-08T21:46:15.7713499Z    at 
java.util.concurrent.ForkJoinPool.managedBlock(ForkJoinPool.java:3323)
2020-07-08T21:46:15.7713957Z    at 
java.util.concurrent.CompletableFuture.waitingGet(CompletableFuture.java:1742)
2020-07-08T21:46:15.7714396Z    at 
java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1908)
2020-07-08T21:46:15.7715121Z    at 
org.apache.flink.client.ClientUtils.submitJobAndWaitForResult(ClientUtils.java:107)
2020-07-08T21:46:15.7715618Z    at 
org.apache.flink.test.accumulators.AccumulatorLiveITCase$1.go(AccumulatorLiveITCase.java:148)
2020-07-08T21:46:15.7716212Z    at 
org.apache.flink.core.testutils.CheckedThread.run(CheckedThread.java:74)
2020-07-08T21:46:15.7716490Z 
2020-07-08T21:46:15.7717251Z 
"AkkaRpcService-Supervisor-Termination-Future-Executor-thread-1" #70 daemon 
prio=5 os_prio=0 tid=0x00007fefa401e000 nid=0x9d5c waiting on condition 
[0x00007fef7eff2000]
2020-07-08T21:46:15.7717761Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7718040Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7718688Z    - parking to wait for  <0x00000000871814b8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7719174Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7719714Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7720268Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7720731Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7721215Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7721689Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7722089Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7722279Z 
2020-07-08T21:46:15.7722934Z "flink-taskexecutor-io-thread-1" #69 daemon prio=5 
os_prio=0 tid=0x00007fef9c18b000 nid=0x9d5b waiting on condition 
[0x00007fef7e74e000]
2020-07-08T21:46:15.7723481Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7723777Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7724461Z    - parking to wait for  <0x0000000087180a20> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7725025Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7725647Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7726288Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7726757Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7727243Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7727719Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7728118Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7728311Z 
2020-07-08T21:46:15.7728915Z "pool-3-thread-1" #68 prio=5 os_prio=0 
tid=0x00007fefd8683800 nid=0x9d5a waiting on condition [0x00007fef7e44d000]
2020-07-08T21:46:15.7729425Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7729699Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7730550Z    - parking to wait for  <0x0000000087181900> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7731026Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7731526Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7732122Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
2020-07-08T21:46:15.7732706Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7733225Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7733691Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7734235Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7734622Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7734925Z 
2020-07-08T21:46:15.7735553Z "Flink-MetricRegistry-thread-1" #64 daemon prio=5 
os_prio=0 tid=0x00007fef9c10a000 nid=0x9d52 waiting on condition 
[0x00007fef7ecf1000]
2020-07-08T21:46:15.7736123Z    java.lang.Thread.State: TIMED_WAITING (parking)
2020-07-08T21:46:15.7736411Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7737066Z    - parking to wait for  <0x0000000087181b80> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7737547Z    at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
2020-07-08T21:46:15.7738100Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
2020-07-08T21:46:15.7738725Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
2020-07-08T21:46:15.7739426Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7739947Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7740517Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7740970Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7741454Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7741650Z 
2020-07-08T21:46:15.7742217Z "pool-2-thread-1" #61 prio=5 os_prio=0 
tid=0x00007fefa0087000 nid=0x9d4f waiting on condition [0x00007fef7e84f000]
2020-07-08T21:46:15.7742628Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7742979Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7743629Z    - parking to wait for  <0x0000000087181dc0> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7744110Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7744610Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7748719Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
2020-07-08T21:46:15.7749446Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7749975Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7750562Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7751005Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7751365Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7751542Z 
2020-07-08T21:46:15.7752400Z "jobmanager-future-thread-2" #58 daemon prio=5 
os_prio=0 tid=0x00007fef9c0ff800 nid=0x9d4c waiting on condition 
[0x00007fef7f2f5000]
2020-07-08T21:46:15.7752842Z    java.lang.Thread.State: TIMED_WAITING (parking)
2020-07-08T21:46:15.7753133Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7753752Z    - parking to wait for  <0x0000000087182040> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7754233Z    at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
2020-07-08T21:46:15.7754770Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
2020-07-08T21:46:15.7755364Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
2020-07-08T21:46:15.7756121Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7756809Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7757294Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7757786Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7758170Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7758360Z 
2020-07-08T21:46:15.7759187Z "FlinkCompletableFutureDelayScheduler-thread-1" 
#57 daemon prio=5 os_prio=0 tid=0x00007fef9c0f8000 nid=0x9d4b waiting on 
condition [0x00007fef7f3f6000]
2020-07-08T21:46:15.7759642Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7759910Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7760656Z    - parking to wait for  <0x0000000087182280> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7761106Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7761610Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7762188Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1081)
2020-07-08T21:46:15.7762857Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7763509Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7763977Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7764465Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7764863Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7765054Z 
2020-07-08T21:46:15.7765798Z "jobmanager-future-thread-1" #51 daemon prio=5 
os_prio=0 tid=0x00007fefb4019800 nid=0x9d40 waiting on condition 
[0x00007fef7f0f3000]
2020-07-08T21:46:15.7766860Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7767199Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7767934Z    - parking to wait for  <0x0000000087182040> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7768427Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7769046Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7769644Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
2020-07-08T21:46:15.7770228Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7770737Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7771326Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7771772Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7772144Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7772441Z 
2020-07-08T21:46:15.7773057Z "mini-cluster-io-thread-8" #46 daemon prio=5 
os_prio=0 tid=0x00007fefa003e000 nid=0x9d3a waiting on condition 
[0x00007fef7f4f7000]
2020-07-08T21:46:15.7773594Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7773888Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7774524Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7775014Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7775545Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7776086Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7776692Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7777163Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7777654Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7778054Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7778243Z 
2020-07-08T21:46:15.7778993Z "mini-cluster-io-thread-7" #45 daemon prio=5 
os_prio=0 tid=0x00007fefa003c800 nid=0x9d39 waiting on condition 
[0x00007fef7f5f8000]
2020-07-08T21:46:15.7779432Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7779716Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7780326Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7780804Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7781421Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7781934Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7782378Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7782815Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7783269Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7783628Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7784198Z 
2020-07-08T21:46:15.7785126Z "mini-cluster-io-thread-6" #44 daemon prio=5 
os_prio=0 tid=0x00007fefa003b000 nid=0x9d38 waiting on condition 
[0x00007fef7f6f9000]
2020-07-08T21:46:15.7786719Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7787001Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7787771Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7788266Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7788785Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7789334Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7789797Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7790281Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7790770Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7791155Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7791350Z 
2020-07-08T21:46:15.7791985Z "mini-cluster-io-thread-5" #43 daemon prio=5 
os_prio=0 tid=0x00007fefa4005000 nid=0x9d37 waiting on condition 
[0x00007fef7f7fa000]
2020-07-08T21:46:15.7792439Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7792718Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7793477Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7794120Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7794908Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7795453Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7795959Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7796446Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7796921Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7798102Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7798308Z 
2020-07-08T21:46:15.7799064Z "mini-cluster-io-thread-4" #42 daemon prio=5 
os_prio=0 tid=0x00007fef81bcb000 nid=0x9d36 waiting on condition 
[0x00007fef7fafb000]
2020-07-08T21:46:15.7799503Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7799796Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7800432Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7800925Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7801557Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7802188Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7802641Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7803083Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7803537Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7803909Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7804085Z 
2020-07-08T21:46:15.7804669Z "mini-cluster-io-thread-3" #41 daemon prio=5 
os_prio=0 tid=0x00007fefa0033800 nid=0x9d35 waiting on condition 
[0x00007fef7fbfc000]
2020-07-08T21:46:15.7805207Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7805488Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7806232Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7806723Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7807383Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7808642Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7809393Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7809867Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7810356Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7810742Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7810947Z 
2020-07-08T21:46:15.7811680Z "mini-cluster-io-thread-2" #40 daemon prio=5 
os_prio=0 tid=0x00007fef81bc5800 nid=0x9d34 waiting on condition 
[0x00007fef7fcfd000]
2020-07-08T21:46:15.7812136Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7812413Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7813079Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7813561Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7814096Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7814648Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7815113Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7815598Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7816075Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7816474Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7816663Z 
2020-07-08T21:46:15.7817337Z "Flink-DispatcherRestEndpoint-thread-1" #38 daemon 
prio=5 os_prio=0 tid=0x00007fef81ba7800 nid=0x9d30 waiting on condition 
[0x00007fef7fdfe000]
2020-07-08T21:46:15.7817803Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7818256Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7818948Z    - parking to wait for  <0x0000000087180cc0> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7819424Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7819954Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7820563Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1088)
2020-07-08T21:46:15.7821169Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7821709Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7822185Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7822675Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7823066Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7823268Z 
2020-07-08T21:46:15.7823894Z "mini-cluster-io-thread-1" #37 daemon prio=5 
os_prio=0 tid=0x00007fef81ba6800 nid=0x9d2f waiting on condition 
[0x00007fef881f5000]
2020-07-08T21:46:15.7824346Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7824625Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7825558Z    - parking to wait for  <0x00000000871826a8> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7826069Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7826571Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7828100Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7830710Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7833058Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7833602Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7833991Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7834183Z 
2020-07-08T21:46:15.7834974Z "flink-rest-server-netty-boss-thread-1" #36 daemon 
prio=5 os_prio=0 tid=0x00007fef81ba2800 nid=0x9d2e runnable [0x00007fef886f6000]
2020-07-08T21:46:15.7837524Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7837854Z    at 
sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
2020-07-08T21:46:15.7838216Z    at 
sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
2020-07-08T21:46:15.7838640Z    at 
sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:93)
2020-07-08T21:46:15.7839059Z    at 
sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
2020-07-08T21:46:15.7839863Z    - locked <0x0000000087183808> (a 
org.apache.flink.shaded.netty4.io.netty.channel.nio.SelectedSelectionKeySet)
2020-07-08T21:46:15.7840536Z    - locked <0x00000000871837f8> (a 
java.util.Collections$UnmodifiableSet)
2020-07-08T21:46:15.7841094Z    - locked <0x00000000871837b0> (a 
sun.nio.ch.EPollSelectorImpl)
2020-07-08T21:46:15.7841467Z    at 
sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
2020-07-08T21:46:15.7841995Z    at 
org.apache.flink.shaded.netty4.io.netty.channel.nio.SelectedSelectionKeySetSelector.select(SelectedSelectionKeySetSelector.java:62)
2020-07-08T21:46:15.7842624Z    at 
org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:806)
2020-07-08T21:46:15.7843171Z    at 
org.apache.flink.shaded.netty4.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:454)
2020-07-08T21:46:15.7843758Z    at 
org.apache.flink.shaded.netty4.io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:918)
2020-07-08T21:46:15.7844391Z    at 
org.apache.flink.shaded.netty4.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
2020-07-08T21:46:15.7844988Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7845195Z 
2020-07-08T21:46:15.7845547Z "IOManager reader thread #1" #30 daemon prio=5 
os_prio=0 tid=0x00007fefd976f000 nid=0x9d09 waiting on condition 
[0x00007fef887f7000]
2020-07-08T21:46:15.7845994Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7846271Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7846965Z    - parking to wait for  <0x0000000087183a70> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7847459Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7847978Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7848536Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7849045Z    at 
org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$ReaderThread.run(IOManagerAsync.java:354)
2020-07-08T21:46:15.7849380Z 
2020-07-08T21:46:15.7849731Z "IOManager writer thread #1" #29 daemon prio=5 
os_prio=0 tid=0x00007fefd976d000 nid=0x9d08 waiting on condition 
[0x00007fef888f8000]
2020-07-08T21:46:15.7853026Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7853377Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7854189Z    - parking to wait for  <0x0000000087183c78> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7854691Z    at 
java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
2020-07-08T21:46:15.7855215Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
2020-07-08T21:46:15.7855767Z    at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
2020-07-08T21:46:15.7856438Z    at 
org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$WriterThread.run(IOManagerAsync.java:460)
2020-07-08T21:46:15.7856783Z 
2020-07-08T21:46:15.7857397Z "Timer-2" #27 daemon prio=5 os_prio=0 
tid=0x00007fefd9736800 nid=0x9d07 in Object.wait() [0x00007fef889f9000]
2020-07-08T21:46:15.7857846Z    java.lang.Thread.State: TIMED_WAITING (on 
object monitor)
2020-07-08T21:46:15.7858155Z    at java.lang.Object.wait(Native Method)
2020-07-08T21:46:15.7858663Z    - waiting on <0x0000000087183e80> (a 
java.util.TaskQueue)
2020-07-08T21:46:15.7859019Z    at 
java.util.TimerThread.mainLoop(Timer.java:552)
2020-07-08T21:46:15.7859530Z    - locked <0x0000000087183e80> (a 
java.util.TaskQueue)
2020-07-08T21:46:15.7859863Z    at java.util.TimerThread.run(Timer.java:505)
2020-07-08T21:46:15.7860062Z 
2020-07-08T21:46:15.7860636Z "Timer-1" #25 daemon prio=5 os_prio=0 
tid=0x00007fefd9734000 nid=0x9d06 in Object.wait() [0x00007fef88afa000]
2020-07-08T21:46:15.7861073Z    java.lang.Thread.State: TIMED_WAITING (on 
object monitor)
2020-07-08T21:46:15.7861394Z    at java.lang.Object.wait(Native Method)
2020-07-08T21:46:15.7861888Z    - waiting on <0x0000000087184060> (a 
java.util.TaskQueue)
2020-07-08T21:46:15.7880889Z    at 
java.util.TimerThread.mainLoop(Timer.java:552)
2020-07-08T21:46:15.7884642Z    - locked <0x0000000087184060> (a 
java.util.TaskQueue)
2020-07-08T21:46:15.7885023Z    at java.util.TimerThread.run(Timer.java:505)
2020-07-08T21:46:15.7885225Z 
2020-07-08T21:46:15.7885568Z "BLOB Server listener at 40413" #21 daemon prio=5 
os_prio=0 tid=0x00007fefd9731000 nid=0x9d05 runnable [0x00007fef88bfb000]
2020-07-08T21:46:15.7885962Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7886274Z    at java.net.PlainSocketImpl.socketAccept(Native 
Method)
2020-07-08T21:46:15.7886677Z    at 
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:409)
2020-07-08T21:46:15.7887099Z    at 
java.net.ServerSocket.implAccept(ServerSocket.java:560)
2020-07-08T21:46:15.7887488Z    at 
java.net.ServerSocket.accept(ServerSocket.java:528)
2020-07-08T21:46:15.7887891Z    at 
org.apache.flink.runtime.blob.BlobServer.run(BlobServer.java:262)
2020-07-08T21:46:15.7888333Z 
2020-07-08T21:46:15.7888964Z "Timer-0" #22 daemon prio=5 os_prio=0 
tid=0x00007fefd9719000 nid=0x9d04 in Object.wait() [0x00007fef88efc000]
2020-07-08T21:46:15.7889410Z    java.lang.Thread.State: TIMED_WAITING (on 
object monitor)
2020-07-08T21:46:15.7889716Z    at java.lang.Object.wait(Native Method)
2020-07-08T21:46:15.7890222Z    - waiting on <0x00000000871846a0> (a 
java.util.TaskQueue)
2020-07-08T21:46:15.7890561Z    at 
java.util.TimerThread.mainLoop(Timer.java:552)
2020-07-08T21:46:15.7891090Z    - locked <0x00000000871846a0> (a 
java.util.TaskQueue)
2020-07-08T21:46:15.7891423Z    at java.util.TimerThread.run(Timer.java:505)
2020-07-08T21:46:15.7891621Z 
2020-07-08T21:46:15.7892216Z "flink-metrics-scheduler-1" #17 prio=5 os_prio=0 
tid=0x00007fefd96de000 nid=0x9d00 waiting on condition [0x00007fefac2f4000]
2020-07-08T21:46:15.7892671Z    java.lang.Thread.State: TIMED_WAITING (sleeping)
2020-07-08T21:46:15.7892986Z    at java.lang.Thread.sleep(Native Method)
2020-07-08T21:46:15.7893378Z    at 
akka.actor.LightArrayRevolverScheduler.waitNanos(LightArrayRevolverScheduler.scala:85)
2020-07-08T21:46:15.7896632Z    at 
akka.actor.LightArrayRevolverScheduler$$anon$4.nextTick(LightArrayRevolverScheduler.scala:265)
2020-07-08T21:46:15.7901619Z    at 
akka.actor.LightArrayRevolverScheduler$$anon$4.run(LightArrayRevolverScheduler.scala:235)
2020-07-08T21:46:15.7902086Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7902278Z 
2020-07-08T21:46:15.7903094Z "flink-akka.actor.default-dispatcher-3" #15 prio=5 
os_prio=0 tid=0x00007fefd914e800 nid=0x9cfe waiting on condition 
[0x00007fefac6f6000]
2020-07-08T21:46:15.7904034Z    java.lang.Thread.State: TIMED_WAITING (parking)
2020-07-08T21:46:15.7904361Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7905300Z    - parking to wait for  <0x0000000087184ce8> (a 
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool)
2020-07-08T21:46:15.7905963Z    at 
akka.dispatch.forkjoin.ForkJoinPool.idleAwaitWork(ForkJoinPool.java:2135)
2020-07-08T21:46:15.7906421Z    at 
akka.dispatch.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2067)
2020-07-08T21:46:15.7906846Z    at 
akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
2020-07-08T21:46:15.7907313Z    at 
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
2020-07-08T21:46:15.7907592Z 
2020-07-08T21:46:15.7908832Z "flink-akka.actor.default-dispatcher-2" #14 prio=5 
os_prio=0 tid=0x00007fefd9139800 nid=0x9cfb waiting on condition 
[0x00007fefac7f7000]
2020-07-08T21:46:15.7909581Z    java.lang.Thread.State: WAITING (parking)
2020-07-08T21:46:15.7909902Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7917391Z    - parking to wait for  <0x0000000087184ce8> (a 
akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool)
2020-07-08T21:46:15.7917891Z    at 
akka.dispatch.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075)
2020-07-08T21:46:15.7918347Z    at 
akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
2020-07-08T21:46:15.7918803Z    at 
akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
2020-07-08T21:46:15.7919099Z 
2020-07-08T21:46:15.7919706Z "flink-scheduler-1" #13 prio=5 os_prio=0 
tid=0x00007fefd90a3800 nid=0x9cfa waiting on condition [0x00007fefac8f8000]
2020-07-08T21:46:15.7920155Z    java.lang.Thread.State: TIMED_WAITING (sleeping)
2020-07-08T21:46:15.7920447Z    at java.lang.Thread.sleep(Native Method)
2020-07-08T21:46:15.7920850Z    at 
akka.actor.LightArrayRevolverScheduler.waitNanos(LightArrayRevolverScheduler.scala:85)
2020-07-08T21:46:15.7921378Z    at 
akka.actor.LightArrayRevolverScheduler$$anon$4.nextTick(LightArrayRevolverScheduler.scala:265)
2020-07-08T21:46:15.7921924Z    at 
akka.actor.LightArrayRevolverScheduler$$anon$4.run(LightArrayRevolverScheduler.scala:235)
2020-07-08T21:46:15.7922347Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7922537Z 
2020-07-08T21:46:15.7922887Z "process reaper" #11 daemon prio=10 os_prio=0 
tid=0x00007fef8c039800 nid=0x9cf5 waiting on condition [0x00007fefad336000]
2020-07-08T21:46:15.7923487Z    java.lang.Thread.State: TIMED_WAITING (parking)
2020-07-08T21:46:15.7923790Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7924433Z    - parking to wait for  <0x00000000871852d8> (a 
java.util.concurrent.SynchronousQueue$TransferStack)
2020-07-08T21:46:15.7924909Z    at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
2020-07-08T21:46:15.7925392Z    at 
java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
2020-07-08T21:46:15.7925923Z    at 
java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
2020-07-08T21:46:15.7926411Z    at 
java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
2020-07-08T21:46:15.7926861Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1073)
2020-07-08T21:46:15.7927346Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7927830Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7928232Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7928421Z 
2020-07-08T21:46:15.7929070Z "surefire-forkedjvm-ping-30s" #10 daemon prio=5 
os_prio=0 tid=0x00007fefd8333800 nid=0x9cf2 waiting on condition 
[0x00007fefaddf4000]
2020-07-08T21:46:15.7929529Z    java.lang.Thread.State: TIMED_WAITING (parking)
2020-07-08T21:46:15.7929832Z    at sun.misc.Unsafe.park(Native Method)
2020-07-08T21:46:15.7930483Z    - parking to wait for  <0x000000008003f018> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
2020-07-08T21:46:15.7930969Z    at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
2020-07-08T21:46:15.7931521Z    at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
2020-07-08T21:46:15.7932135Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
2020-07-08T21:46:15.7932839Z    at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
2020-07-08T21:46:15.7933385Z    at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1074)
2020-07-08T21:46:15.7933857Z    at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1134)
2020-07-08T21:46:15.7934347Z    at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
2020-07-08T21:46:15.7934731Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7934935Z 
2020-07-08T21:46:15.7935575Z "surefire-forkedjvm-command-thread" #9 daemon 
prio=5 os_prio=0 tid=0x00007fefd831c000 nid=0x9cf1 runnable [0x00007fefc8110000]
2020-07-08T21:46:15.7936010Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7936301Z    at java.io.FileInputStream.readBytes(Native 
Method)
2020-07-08T21:46:15.7936656Z    at 
java.io.FileInputStream.read(FileInputStream.java:255)
2020-07-08T21:46:15.7937053Z    at 
java.io.BufferedInputStream.fill(BufferedInputStream.java:246)
2020-07-08T21:46:15.7937482Z    at 
java.io.BufferedInputStream.read(BufferedInputStream.java:265)
2020-07-08T21:46:15.7938078Z    - locked <0x000000008003f298> (a 
java.io.BufferedInputStream)
2020-07-08T21:46:15.7938448Z    at 
java.io.DataInputStream.readInt(DataInputStream.java:387)
2020-07-08T21:46:15.7938917Z    at 
org.apache.maven.surefire.booter.MasterProcessCommand.decode(MasterProcessCommand.java:115)
2020-07-08T21:46:15.7939441Z    at 
org.apache.maven.surefire.booter.CommandReader$CommandRunnable.run(CommandReader.java:391)
2020-07-08T21:46:15.7939867Z    at java.lang.Thread.run(Thread.java:748)
2020-07-08T21:46:15.7940058Z 
2020-07-08T21:46:15.7940383Z "Service Thread" #8 daemon prio=9 os_prio=0 
tid=0x00007fefd820a800 nid=0x9cef runnable [0x0000000000000000]
2020-07-08T21:46:15.7940761Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7940950Z 
2020-07-08T21:46:15.7942892Z "C1 CompilerThread1" #7 daemon prio=9 os_prio=0 
tid=0x00007fefd81ff800 nid=0x9cee waiting on condition [0x0000000000000000]
2020-07-08T21:46:15.7943483Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7943655Z 
2020-07-08T21:46:15.7944001Z "C2 CompilerThread0" #6 daemon prio=9 os_prio=0 
tid=0x00007fefd81fd000 nid=0x9ced waiting on condition [0x0000000000000000]
2020-07-08T21:46:15.7945021Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7945236Z 
2020-07-08T21:46:15.7945548Z "Signal Dispatcher" #5 daemon prio=9 os_prio=0 
tid=0x00007fefd81fb000 nid=0x9cec runnable [0x0000000000000000]
2020-07-08T21:46:15.7945946Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7946121Z 
2020-07-08T21:46:15.7946503Z "Surrogate Locker Thread (Concurrent GC)" #4 
daemon prio=9 os_prio=0 tid=0x00007fefd81f9800 nid=0x9ceb waiting on condition 
[0x0000000000000000]
2020-07-08T21:46:15.7946936Z    java.lang.Thread.State: RUNNABLE
2020-07-08T21:46:15.7947124Z 
2020-07-08T21:46:15.7947437Z "Finalizer" #3 daemon prio=8 os_prio=0 
tid=0x00007fefd81c9800 nid=0x9cea in Object.wait() [0x00007fefc8dfc000]
2020-07-08T21:46:15.7947882Z    java.lang.Thread.State: WAITING (on object 
monitor)
2020-07-08T21:46:15.7948179Z    at java.lang.Object.wait(Native Method)
2020-07-08T21:46:15.7948525Z    at 
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:144)
2020-07-08T21:46:15.7949696Z    - locked <0x0000000080043288> (a 
java.lang.ref.ReferenceQueue$Lock)
2020-07-08T21:46:15.7950111Z    at 
java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:165)
2020-07-08T21:46:15.7950533Z    at 
java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:216)
2020-07-08T21:46:15.7950778Z 
2020-07-08T21:46:15.7951106Z "Reference Handler" #2 daemon prio=10 os_prio=0 
tid=0x00007fefd81c5000 nid=0x9ce9 in Object.wait() [0x00007fefc8efd000]
2020-07-08T21:46:15.7951551Z    java.lang.Thread.State: WAITING (on object 
monitor)
2020-07-08T21:46:15.7951862Z    at java.lang.Object.wait(Native Method)
2020-07-08T21:46:15.7952575Z    at java.lang.Object.wait(Object.java:502)
2020-07-08T21:46:15.7953820Z    at 
java.lang.ref.Reference.tryHandlePending(Reference.java:191)
2020-07-08T21:46:15.7954525Z    - locked <0x0000000080043278> (a 
java.lang.ref.Reference$Lock)
2020-07-08T21:46:15.7954935Z    at 
java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153)
2020-07-08T21:46:15.7955185Z 
2020-07-08T21:46:15.7955492Z "main" #1 prio=5 os_prio=0 tid=0x00007fefd800b800 
nid=0x9ce0 in Object.wait() [0x00007fefe2138000]
2020-07-08T21:46:15.7956693Z    java.lang.Thread.State: WAITING (on object 
monitor)
2020-07-08T21:46:15.7957487Z    at java.lang.Object.wait(Native Method)
2020-07-08T21:46:15.7958906Z    - waiting on <0x0000000087181118> (a 
org.apache.flink.test.accumulators.AccumulatorLiveITCase$1)
2020-07-08T21:46:15.7959330Z    at java.lang.Thread.join(Thread.java:1252)
2020-07-08T21:46:15.7959948Z    - locked <0x0000000087181118> (a 
org.apache.flink.test.accumulators.AccumulatorLiveITCase$1)
2020-07-08T21:46:15.7960408Z    at 
org.apache.flink.core.testutils.CheckedThread.trySync(CheckedThread.java:112)
2020-07-08T21:46:15.7960896Z    at 
org.apache.flink.core.testutils.CheckedThread.sync(CheckedThread.java:100)
2020-07-08T21:46:15.7961352Z    at 
org.apache.flink.core.testutils.CheckedThread.sync(CheckedThread.java:89)
2020-07-08T21:46:15.7961901Z    at 
org.apache.flink.test.accumulators.AccumulatorLiveITCase.submitJobAndVerifyResults(AccumulatorLiveITCase.java:178)
2020-07-08T21:46:15.7962593Z    at 
org.apache.flink.test.accumulators.AccumulatorLiveITCase.testStreaming(AccumulatorLiveITCase.java:137)
2020-07-08T21:46:15.7963051Z    at 
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2020-07-08T21:46:15.7963469Z    at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
2020-07-08T21:46:15.7963954Z    at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
2020-07-08T21:46:15.7964396Z    at 
java.lang.reflect.Method.invoke(Method.java:498)
2020-07-08T21:46:15.7964820Z    at 
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
2020-07-08T21:46:15.7965332Z    at 
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
2020-07-08T21:46:15.7965986Z    at 
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
2020-07-08T21:46:15.7966471Z    at 
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
2020-07-08T21:46:15.7966960Z    at 
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
2020-07-08T21:46:15.7967388Z    at 
org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
2020-07-08T21:46:15.7976578Z    at 
org.junit.rules.RunRules.evaluate(RunRules.java:20)
2020-07-08T21:46:15.7977052Z    at 
org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
2020-07-08T21:46:15.7996016Z    at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
2020-07-08T21:46:15.7996567Z    at 
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
2020-07-08T21:46:15.7998186Z    at 
org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
2020-07-08T21:46:15.8000214Z    at 
org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
2020-07-08T21:46:15.8001811Z    at 
org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
2020-07-08T21:46:15.8002898Z    at 
org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
2020-07-08T21:46:15.8003494Z    at 
org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
2020-07-08T21:46:15.8004932Z    at 
org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
2020-07-08T21:46:15.8005359Z    at 
org.junit.rules.RunRules.evaluate(RunRules.java:20)
2020-07-08T21:46:15.8006127Z    at 
org.junit.runners.ParentRunner.run(ParentRunner.java:363)
2020-07-08T21:46:15.8006585Z    at 
org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:365)
2020-07-08T21:46:15.8007100Z    at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:273)
2020-07-08T21:46:15.8007613Z    at 
org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:238)
2020-07-08T21:46:15.8008314Z    at 
org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:159)
2020-07-08T21:46:15.8008844Z    at 
org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:384)
2020-07-08T21:46:15.8009398Z    at 
org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:345)
2020-07-08T21:46:15.8009884Z    at 
org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:126)
2020-07-08T21:46:15.8010358Z    at 
org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:418)
2020-07-08T21:46:15.8010622Z 
2020-07-08T21:46:15.8010875Z "VM Thread" os_prio=0 tid=0x00007fefd81bb800 
nid=0x9ce8 runnable 
2020-07-08T21:46:15.8011089Z 
2020-07-08T21:46:15.8011384Z "Gang worker#0 (Parallel GC Threads)" os_prio=0 
tid=0x00007fefd8020000 nid=0x9ce1 runnable 
2020-07-08T21:46:15.8011637Z 
2020-07-08T21:46:15.8011928Z "Gang worker#1 (Parallel GC Threads)" os_prio=0 
tid=0x00007fefd8022000 nid=0x9ce2 runnable 
2020-07-08T21:46:15.8012181Z 
2020-07-08T21:46:15.8012467Z "G1 Main Concurrent Mark GC Thread" os_prio=0 
tid=0x00007fefd8046000 nid=0x9ce6 runnable 
2020-07-08T21:46:15.8012717Z 
2020-07-08T21:46:15.8013007Z "Gang worker#0 (G1 Parallel Marking Threads)" 
os_prio=0 tid=0x00007fefd8047800 nid=0x9ce7 runnable 
2020-07-08T21:46:15.8013287Z 
2020-07-08T21:46:15.8013565Z "G1 Concurrent Refinement Thread#0" os_prio=0 
tid=0x00007fefd8028000 nid=0x9ce5 runnable 
2020-07-08T21:46:15.8013829Z 
2020-07-08T21:46:15.8014102Z "G1 Concurrent Refinement Thread#1" os_prio=0 
tid=0x00007fefd8026000 nid=0x9ce4 runnable 
2020-07-08T21:46:15.8034995Z 
2020-07-08T21:46:15.8035322Z "G1 Concurrent Refinement Thread#2" os_prio=0 
tid=0x00007fefd8024800 nid=0x9ce3 runnable 
2020-07-08T21:46:15.8035581Z 
2020-07-08T21:46:15.8035879Z "VM Periodic Task Thread" os_prio=0 
tid=0x00007fefd820d800 nid=0x9cf0 waiting on condition 
2020-07-08T21:46:15.8036137Z 
2020-07-08T21:46:15.8036337Z JNI global references: 1359
{code}



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