I am seeing a hang where the main thread of CliFrontend goes to timed waiting. This appears like a livelock. My local setup is simple: A job manager, a task manager on MacOS. My algorithm is based on Gelly's vertex centric computation. The resultant graph's vertex count is about 4 million. I am printing the vertices to a file using
resultVertices.writeAsCsv(save, FileSystem.WriteMode.OVERWRITE); and that seems to write the csv alright, however my invocation of flink run appears hung because of the timed waiting of the main thread in CliFrontend. My config in flink.yaml is simple: akka.client.timeout: 60 min #taskmanager.heap.mb: 16384 #jobmanager.heap.mb: 8192 # 25 Feb taskmanager.numberOfTaskSlots: 4 taskmanager.heap.mb: 50000 jobmanager.heap.mb: 20000 The log does show: 02/25/2018 18:06:34 DataSink (CsvOutputFormat (path: file:/tmp/nis, delimiter: ,))(1/1) switched to FINISHED The main thread's dump is here: "main" #1 prio=5 os_prio=31 tid=0x00007ffa6c801800 nid=0x2703 waiting on condition [0x000070000ffdb000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x000000076bb82568> (a scala.concurrent.impl.Promise$CompletionLatch) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1037) at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1328) at scala.concurrent.impl.Promise$DefaultPromise.tryAwait(Promise.scala:212) at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:222) at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:157) at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:169) at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:169) at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53) at scala.concurrent.Await$.ready(package.scala:169) at scala.concurrent.Await.ready(package.scala) at org.apache.flink.runtime.client.JobClient.awaitJobResult(JobClient.java:266) at org.apache.flink.runtime.client.JobClient.submitJobAndWait(JobClient.java:387) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:481) at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:105) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:456) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:444) at org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:62) at org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:815) at org.apache.flink.api.java.DataSet.collect(DataSet.java:413) at org.apache.flink.api.java.DataSet.print(DataSet.java:1652) at StatefulVertexCentricInfluenceScore.main(StatefulVertexCentricInfluenceScore.java:143) 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.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:525) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:417) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:396) at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:802) at org.apache.flink.client.CliFrontend.run(CliFrontend.java:282) at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1054) at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1101) at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1098) at org.apache.flink.runtime.security.HadoopSecurityContext$$Lambda$6/812553708.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1807) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1098) StatefulVertexCentricInfluenceScore.main( StatefulVertexCentricInfluenceScore.java:143) is the above line in Java source code. The DataSink(Collect) on dashboard shows that it is still running [1]! I have been able to submit another smaller job which runs to completion. There is nothing suspicious in task manager or job manager log or thread dumps. Any idea what is going on? Regards, Kedar The entire thread dump of the CliFrontend JVM (that appears hung) via jstack is: # taken on 26 Feb 2018 # 2018-02-26 09:33:19 Full thread dump Java HotSpot(TM) 64-Bit Server VM (25.131-b11 mixed mode): "Attach Listener" #67 daemon prio=9 os_prio=31 tid=0x00007ffa6cb4f800 nid=0x125f waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Thread-1" #66 daemon prio=5 os_prio=31 tid=0x00007ffa6e1b5000 nid=0x307 runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "flink-akka.remote.default-remote-dispatcher-15" #45 prio=5 os_prio=31 tid=0x00007ffa6e26d000 nid=0x6303 waiting on condition [0x0000700012140000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b54218> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "Hashed wheel timer #1" #38 prio=5 os_prio=31 tid=0x00007ffa6e26a800 nid=0x6103 waiting on condition [0x000070001203d000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at org.apache.flink.shaded.akka.org.jboss.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:445) at org.apache.flink.shaded.akka.org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:364) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at java.lang.Thread.run(Thread.java:748) "flink-akka.remote.default-remote-dispatcher-14" #44 prio=5 os_prio=31 tid=0x00007ffa6dfb1000 nid=0x6003 waiting on condition [0x0000700011f3a000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b54218> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.idleAwaitWork(ForkJoinPool.java:2135) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2067) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "flink-akka.remote.default-remote-dispatcher-13" #43 prio=5 os_prio=31 tid=0x00007ffa6e911000 nid=0x9c03 waiting on condition [0x0000700011e37000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b54218> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "New I/O server boss #6" #42 prio=5 os_prio=31 tid=0x00007ffa6e8cb000 nid=0x9e03 runnable [0x0000700011d34000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198) at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000772b7a1e8> (a sun.nio.ch.Util$3) - locked <0x0000000772b7a1f8> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000772b7a198> (a sun.nio.ch.KQueueSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:101) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioServerBoss.select(NioServerBoss.java:163) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.apache.flink.shaded.akka.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "New I/O worker #5" #41 prio=5 os_prio=31 tid=0x00007ffa6cb1b800 nid=0x5e03 runnable [0x0000700011c31000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198) at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000772bc9ff0> (a sun.nio.ch.Util$3) - locked <0x0000000772bc9fe0> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000772bca000> (a sun.nio.ch.KQueueSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.apache.flink.shaded.akka.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "New I/O worker #4" #40 prio=5 os_prio=31 tid=0x00007ffa6cad5800 nid=0xa003 runnable [0x0000700011b2e000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198) at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000772bca7c0> (a sun.nio.ch.Util$3) - locked <0x0000000772bca7b0> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000772bca680> (a sun.nio.ch.KQueueSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.apache.flink.shaded.akka.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "New I/O boss #3" #39 prio=5 os_prio=31 tid=0x00007ffa6dfd9800 nid=0x5c03 runnable [0x0000700011a2b000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198) at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000772bcb0d8> (a sun.nio.ch.Util$3) - locked <0x0000000772bcb0c8> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000772bcb0e8> (a sun.nio.ch.KQueueSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.apache.flink.shaded.akka.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "New I/O worker #2" #37 prio=5 os_prio=31 tid=0x00007ffa6dfac800 nid=0xa103 runnable [0x0000700011928000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198) at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000772bcba68> (a sun.nio.ch.Util$3) - locked <0x0000000772bcba58> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000772bcba78> (a sun.nio.ch.KQueueSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.apache.flink.shaded.akka.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "New I/O worker #1" #36 prio=5 os_prio=31 tid=0x00007ffa6df07800 nid=0xa203 runnable [0x0000700011825000] java.lang.Thread.State: RUNNABLE at sun.nio.ch.KQueueArrayWrapper.kevent0(Native Method) at sun.nio.ch.KQueueArrayWrapper.poll(KQueueArrayWrapper.java:198) at sun.nio.ch.KQueueSelectorImpl.doSelect(KQueueSelectorImpl.java:117) at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86) - locked <0x0000000772bd8528> (a sun.nio.ch.Util$3) - locked <0x0000000772bd8518> (a java.util.Collections$UnmodifiableSet) - locked <0x0000000772bcd158> (a sun.nio.ch.KQueueSelectorImpl) at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:434) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89) at org.apache.flink.shaded.akka.org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178) at org.apache.flink.shaded.akka.org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) at org.apache.flink.shaded.akka.org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:748) "flink-akka.remote.default-remote-dispatcher-5" #35 prio=5 os_prio=31 tid=0x00007ffa6f143000 nid=0xa303 waiting on condition [0x0000700011722000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b54218> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "flink-akka.actor.default-dispatcher-4" #34 prio=5 os_prio=31 tid=0x00007ffa6ca88000 nid=0xa403 waiting on condition [0x000070001161f000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b2baa8> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "flink-akka.actor.default-dispatcher-3" #33 prio=5 os_prio=31 tid=0x00007ffa6b4dd000 nid=0xa603 waiting on condition [0x000070001151c000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b2baa8> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "flink-akka.actor.default-dispatcher-2" #32 prio=5 os_prio=31 tid=0x00007ffa6df05800 nid=0xa803 waiting on condition [0x0000700011419000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x0000000772b2baa8> (a akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinPool) at scala.concurrent.forkjoin.ForkJoinPool.idleAwaitWork(ForkJoinPool.java:2135) at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2067) at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) "flink-scheduler-1" #31 prio=5 os_prio=31 tid=0x00007ffa6f0e4000 nid=0x571b sleeping[0x0000700011316000] java.lang.Thread.State: TIMED_WAITING (sleeping) at java.lang.Thread.sleep(Native Method) at akka.actor.LightArrayRevolverScheduler.waitNanos(LightArrayRevolverScheduler.scala:85) at akka.actor.LightArrayRevolverScheduler$$anon$4.nextTick(LightArrayRevolverScheduler.scala:266) at akka.actor.LightArrayRevolverScheduler$$anon$4.run(LightArrayRevolverScheduler.scala:236) at java.lang.Thread.run(Thread.java:748) "Service Thread" #9 daemon prio=9 os_prio=31 tid=0x00007ffa6c025800 nid=0x3d03 runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C1 CompilerThread3" #8 daemon prio=9 os_prio=31 tid=0x00007ffa6b00c800 nid=0x3c03 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread2" #7 daemon prio=9 os_prio=31 tid=0x00007ffa6c00b800 nid=0x4203 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread1" #6 daemon prio=9 os_prio=31 tid=0x00007ffa6b00c000 nid=0x4303 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "C2 CompilerThread0" #5 daemon prio=9 os_prio=31 tid=0x00007ffa6b00a800 nid=0x4403 waiting on condition [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Signal Dispatcher" #4 daemon prio=9 os_prio=31 tid=0x00007ffa6b009800 nid=0x4507 runnable [0x0000000000000000] java.lang.Thread.State: RUNNABLE "Finalizer" #3 daemon prio=8 os_prio=31 tid=0x00007ffa6b03a800 nid=0x4c03 in Object.wait() [0x0000700010afe000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00000006c0025d60> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143) - locked <0x00000006c0025d60> (a java.lang.ref.ReferenceQueue$Lock) at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:164) at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209) "Reference Handler" #2 daemon prio=10 os_prio=31 tid=0x00007ffa6b037800 nid=0x3003 in Object.wait() [0x00007000109fb000] java.lang.Thread.State: WAITING (on object monitor) at java.lang.Object.wait(Native Method) - waiting on <0x00000006c002e370> (a java.lang.ref.Reference$Lock) at java.lang.Object.wait(Object.java:502) at java.lang.ref.Reference.tryHandlePending(Reference.java:191) - locked <0x00000006c002e370> (a java.lang.ref.Reference$Lock) at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:153) "main" #1 prio=5 os_prio=31 tid=0x00007ffa6c801800 nid=0x2703 waiting on condition [0x000070000ffdb000] java.lang.Thread.State: TIMED_WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x000000076bb82568> (a scala.concurrent.impl.Promise$CompletionLatch) at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedNanos(AbstractQueuedSynchronizer.java:1037) at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1328) at scala.concurrent.impl.Promise$DefaultPromise.tryAwait(Promise.scala:212) at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:222) at scala.concurrent.impl.Promise$DefaultPromise.ready(Promise.scala:157) at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:169) at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:169) at scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53) at scala.concurrent.Await$.ready(package.scala:169) at scala.concurrent.Await.ready(package.scala) at org.apache.flink.runtime.client.JobClient.awaitJobResult(JobClient.java:266) at org.apache.flink.runtime.client.JobClient.submitJobAndWait(JobClient.java:387) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:481) at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:105) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:456) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:444) at org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:62) at org.apache.flink.api.java.ExecutionEnvironment.execute(ExecutionEnvironment.java:815) at org.apache.flink.api.java.DataSet.collect(DataSet.java:413) at org.apache.flink.api.java.DataSet.print(DataSet.java:1652) at StatefulVertexCentricInfluenceScore.main(StatefulVertexCentricInfluenceScore.java:143) 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.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:525) at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:417) at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:396) at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:802) at org.apache.flink.client.CliFrontend.run(CliFrontend.java:282) at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1054) at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1101) at org.apache.flink.client.CliFrontend$1.call(CliFrontend.java:1098) at org.apache.flink.runtime.security.HadoopSecurityContext$$Lambda$6/812553708.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1807) at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1098) "VM Thread" os_prio=31 tid=0x00007ffa6c838800 nid=0x4e03 runnable "GC task thread#0 (ParallelGC)" os_prio=31 tid=0x00007ffa6c011000 nid=0x1f07 runnable "GC task thread#1 (ParallelGC)" os_prio=31 tid=0x00007ffa6c011800 nid=0x2003 runnable "GC task thread#2 (ParallelGC)" os_prio=31 tid=0x00007ffa6c012000 nid=0x2a03 runnable "GC task thread#3 (ParallelGC)" os_prio=31 tid=0x00007ffa6c012800 nid=0x2b03 runnable "GC task thread#4 (ParallelGC)" os_prio=31 tid=0x00007ffa6b004000 nid=0x2c03 runnable "GC task thread#5 (ParallelGC)" os_prio=31 tid=0x00007ffa6b008800 nid=0x5103 runnable "GC task thread#6 (ParallelGC)" os_prio=31 tid=0x00007ffa6b012000 nid=0x5003 runnable "GC task thread#7 (ParallelGC)" os_prio=31 tid=0x00007ffa6b012800 nid=0x4f03 runnable "VM Periodic Task Thread" os_prio=31 tid=0x00007ffa6c85f800 nid=0x4003 waiting on condition JNI global references: 306 [1] [image: Inline image 1]
