Hi,

 

I am trying to write into Cassandra via the CqlBulkOutputFormat from an
apache flink program. The program succeeds to write into a cassandra-cluster
while the program is running locally on my pc.

However, when trying to run the program on the cluster, it seems to get
stuck at SSTableSimpleUnsortedWriter.put() waiting for the
Diskwriter-Thread, that is not running anymore.

 

I am using cassandra version 1.5 and apache flink version 0.9.0.

 

Attached is the full stacktrace.

 

Thanks in advance,

Susanne

2015-06-26 11:15:35
Full thread dump Java HotSpot(TM) 64-Bit Server VM (24.65-b04 mixed mode):

"JMX server connection timeout 68" - Thread t@68
   java.lang.Thread.State: TIMED_WAITING
        at java.lang.Object.wait(Native Method)
        - waiting on <117d0002> (a [I)
        at 
com.sun.jmx.remote.internal.ServerCommunicatorAdmin$Timeout.run(ServerCommunicatorAdmin.java:168)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"RMI TCP Connection(4)-172.16.30.87" - Thread t@67
   java.lang.Thread.State: RUNNABLE
        at sun.management.ThreadImpl.dumpThreads0(Native Method)
        at sun.management.ThreadImpl.dumpAllThreads(ThreadImpl.java:446)
        at sun.reflect.GeneratedMethodAccessor62.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:75)
        at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:279)
        at 
com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:193)
        at 
com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:175)
        at 
com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:117)
        at 
com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:54)
        at 
com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
        at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
        at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
        at javax.management.StandardMBean.invoke(StandardMBean.java:405)
        at 
com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
        at 
com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
        at 
javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1487)
        at 
javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:97)
        at 
javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1328)
        at 
javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1420)
        at 
javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:848)
        at sun.reflect.GeneratedMethodAccessor43.invoke(Unknown Source)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:322)
        at sun.rmi.transport.Transport$1.run(Transport.java:177)
        at sun.rmi.transport.Transport$1.run(Transport.java:174)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.rmi.transport.Transport.serviceCall(Transport.java:173)
        at 
sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:556)
        at 
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:811)
        at 
sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:670)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <4f733919> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"RMI Scheduler(0)" - Thread t@66
   java.lang.Thread.State: TIMED_WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <258b8c46> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:807)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"Reference-Reaper:1" - Thread t@64
   java.lang.Thread.State: WAITING
        at java.lang.Object.wait(Native Method)
        - waiting on <6ca65aeb> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
        at org.apache.cassandra.utils.concurrent.Ref$1.run(Ref.java:309)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <6f0981a6> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"ScheduledTasks:1" - Thread t@62
   java.lang.Thread.State: TIMED_WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <1d9b3207> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2082)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1090)
        at 
java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:807)
        at 
java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1068)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"DataSink (org.apache.flink.api.java.hadoop.mapred.HadoopOutputFormat@36305d63) 
(1/1)" - Thread t@60
   java.lang.Thread.State: TIMED_WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <37f178c0> (a 
java.util.concurrent.SynchronousQueue$TransferStack)
        at 
java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:226)
        at 
java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
        at 
java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:359)
        at 
java.util.concurrent.SynchronousQueue.offer(SynchronousQueue.java:896)
        at 
org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter.put(SSTableSimpleUnsortedWriter.java:187)
        at 
org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter.sync(SSTableSimpleUnsortedWriter.java:174)
        at 
org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter.close(SSTableSimpleUnsortedWriter.java:150)
        at 
org.apache.cassandra.io.sstable.CQLSSTableWriter.close(CQLSSTableWriter.java:271)
        at 
hadoop_cassandra.AbstractBulkRecordWriter.close(AbstractBulkRecordWriter.java:123)
        at 
hadoop_cassandra.AbstractBulkRecordWriter.close(AbstractBulkRecordWriter.java:116)
        at 
hadoop_cassandra.CqlFlinkRecordWriter.close(CqlFlinkRecordWriter.java:48)
        at 
org.apache.flink.api.java.hadoop.mapred.HadoopOutputFormatBase.close(HadoopOutputFormatBase.java:123)
        at 
org.apache.flink.runtime.operators.DataSinkTask.invoke(DataSinkTask.java:242)
        at org.apache.flink.runtime.taskmanager.Task.run(Task.java:559)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"ForkJoinPool-1-worker-3" - Thread t@50
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <4e2ea1f1> (a 
scala.concurrent.forkjoin.ForkJoinPool)
        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)

   Locked ownable synchronizers:
        - None

"org.apache.hadoop.hdfs.PeerCache@72a69cb0" - Thread t@49
   java.lang.Thread.State: TIMED_WAITING
        at java.lang.Thread.sleep(Native Method)
        at org.apache.hadoop.hdfs.PeerCache.run(PeerCache.java:252)
        at org.apache.hadoop.hdfs.PeerCache.access$000(PeerCache.java:39)
        at org.apache.hadoop.hdfs.PeerCache$1.run(PeerCache.java:135)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"Timer-0" - Thread t@42
   java.lang.Thread.State: TIMED_WAITING
        at java.lang.Object.wait(Native Method)
        - waiting on <5789fd50> (a java.util.TaskQueue)
        at java.util.TimerThread.mainLoop(Timer.java:552)
        at java.util.TimerThread.run(Timer.java:505)

   Locked ownable synchronizers:
        - None

"Flink Netty Server (38663) Thread 0" - Thread t@36
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <5049e02e> (a io.netty.channel.nio.SelectedSelectionKeySet)
        - locked <235a13cf> (a java.util.Collections$UnmodifiableSet)
        - locked <33f9f939> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at io.netty.channel.nio.NioEventLoop.select(NioEventLoop.java:622)
        at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:310)
        at 
io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"Hashed wheel timer #1" - Thread t@20
   java.lang.Thread.State: TIMED_WAITING
        at java.lang.Thread.sleep(Native Method)
        at 
org.jboss.netty.util.HashedWheelTimer$Worker.waitForNextTick(HashedWheelTimer.java:483)
        at 
org.jboss.netty.util.HashedWheelTimer$Worker.run(HashedWheelTimer.java:392)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"flink-akka.remote.default-remote-dispatcher-16" - Thread t@31
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <2455bc16> (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)

   Locked ownable synchronizers:
        - None

"IOManager reader thread #1" - Thread t@29
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <78af5afc> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$ReaderThread.run(IOManagerAsync.java:349)

   Locked ownable synchronizers:
        - None

"IOManager writer thread #1" - Thread t@28
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <407e944a> (a 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2043)
        at 
java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
        at 
org.apache.flink.runtime.io.disk.iomanager.IOManagerAsync$WriterThread.run(IOManagerAsync.java:455)

   Locked ownable synchronizers:
        - None

"flink-akka.remote.default-remote-dispatcher-14" - Thread t@25
   java.lang.Thread.State: TIMED_WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <2455bc16> (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)

   Locked ownable synchronizers:
        - None

"New I/O server boss #6" - Thread t@24
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <183cb59b> (a sun.nio.ch.Util$2)
        - locked <39b6df8b> (a java.util.Collections$UnmodifiableSet)
        - locked <150e3c47> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:102)
        at 
org.jboss.netty.channel.socket.nio.NioServerBoss.select(NioServerBoss.java:163)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
        at 
org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <6d3af755> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"New I/O worker #5" - Thread t@23
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <5997641d> (a sun.nio.ch.Util$2)
        - locked <622dd9de> (a java.util.Collections$UnmodifiableSet)
        - locked <303ab02d> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at 
org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
        at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <4f2f2008> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"New I/O worker #4" - Thread t@22
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <5d047317> (a sun.nio.ch.Util$2)
        - locked <4f201ab6> (a java.util.Collections$UnmodifiableSet)
        - locked <44b9cb4f> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at 
org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
        at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <10b37095> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"New I/O boss #3" - Thread t@21
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <1d2d2c9> (a sun.nio.ch.Util$2)
        - locked <380c8b0e> (a java.util.Collections$UnmodifiableSet)
        - locked <3f7d60e1> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at 
org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
        at 
org.jboss.netty.channel.socket.nio.NioClientBoss.run(NioClientBoss.java:42)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <1465d8d2> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"New I/O worker #2" - Thread t@19
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <40637457> (a sun.nio.ch.Util$2)
        - locked <416b1cc7> (a java.util.Collections$UnmodifiableSet)
        - locked <5f2e6e5e> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at 
org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
        at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <4708bd3f> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"New I/O worker #1" - Thread t@18
   java.lang.Thread.State: RUNNABLE
        at sun.nio.ch.EPollArrayWrapper.epollWait(Native Method)
        at sun.nio.ch.EPollArrayWrapper.poll(EPollArrayWrapper.java:269)
        at sun.nio.ch.EPollSelectorImpl.doSelect(EPollSelectorImpl.java:79)
        at sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:87)
        - locked <61500e23> (a sun.nio.ch.Util$2)
        - locked <4ed04dbe> (a java.util.Collections$UnmodifiableSet)
        - locked <4da01d5e> (a sun.nio.ch.EPollSelectorImpl)
        at sun.nio.ch.SelectorImpl.select(SelectorImpl.java:98)
        at 
org.jboss.netty.channel.socket.nio.SelectorUtil.select(SelectorUtil.java:68)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.select(AbstractNioSelector.java:415)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:212)
        at 
org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)
        at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)
        at 
org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)
        at 
org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - locked <501a7f06> (a java.util.concurrent.ThreadPoolExecutor$Worker)

"flink-akka.actor.default-dispatcher-5" - Thread t@16
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <3639a75a> (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)

   Locked ownable synchronizers:
        - None

"flink-akka.actor.default-dispatcher-4" - Thread t@15
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <3639a75a> (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)

   Locked ownable synchronizers:
        - None

"flink-akka.actor.default-dispatcher-3" - Thread t@14
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <3639a75a> (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)

   Locked ownable synchronizers:
        - None

"flink-akka.actor.default-dispatcher-2" - Thread t@13
   java.lang.Thread.State: TIMED_WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <3639a75a> (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)

   Locked ownable synchronizers:
        - None

"flink-scheduler-1" - Thread t@12
   java.lang.Thread.State: TIMED_WAITING
        at java.lang.Thread.sleep(Native Method)
        at akka.actor.LightArrayRevolverScheduler.waitNanos(Scheduler.scala:226)
        at 
akka.actor.LightArrayRevolverScheduler$$anon$8.nextTick(Scheduler.scala:405)
        at 
akka.actor.LightArrayRevolverScheduler$$anon$8.run(Scheduler.scala:375)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"RMI TCP Accept-0" - Thread t@11
   java.lang.Thread.State: RUNNABLE
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at 
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
        at java.net.ServerSocket.implAccept(ServerSocket.java:530)
        at java.net.ServerSocket.accept(ServerSocket.java:498)
        at 
sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:52)
        at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:388)
        at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:360)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"RMI TCP Accept-3333" - Thread t@10
   java.lang.Thread.State: RUNNABLE
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at 
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
        at java.net.ServerSocket.implAccept(ServerSocket.java:530)
        at java.net.ServerSocket.accept(ServerSocket.java:498)
        at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:388)
        at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:360)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"RMI TCP Accept-0" - Thread t@9
   java.lang.Thread.State: RUNNABLE
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at 
java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
        at java.net.ServerSocket.implAccept(ServerSocket.java:530)
        at java.net.ServerSocket.accept(ServerSocket.java:498)
        at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:388)
        at 
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:360)
        at java.lang.Thread.run(Thread.java:745)

   Locked ownable synchronizers:
        - None

"Signal Dispatcher" - Thread t@4
   java.lang.Thread.State: RUNNABLE

   Locked ownable synchronizers:
        - None

"Finalizer" - Thread t@3
   java.lang.Thread.State: WAITING
        at java.lang.Object.wait(Native Method)
        - waiting on <31a2186> (a java.lang.ref.ReferenceQueue$Lock)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:135)
        at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:151)
        at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:209)

   Locked ownable synchronizers:
        - None

"Reference Handler" - Thread t@2
   java.lang.Thread.State: WAITING
        at java.lang.Object.wait(Native Method)
        - waiting on <288ee601> (a java.lang.ref.Reference$Lock)
        at java.lang.Object.wait(Object.java:503)
        at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:133)

   Locked ownable synchronizers:
        - None

"main" - Thread t@1
   java.lang.Thread.State: WAITING
        at sun.misc.Unsafe.park(Native Method)
        - parking to wait for <e2a01da> (a 
java.util.concurrent.CountDownLatch$Sync)
        at java.util.concurrent.locks.LockSupport.park(LockSupport.java:186)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:834)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:994)
        at 
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1303)
        at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:236)
        at 
akka.actor.ActorSystemImpl$TerminationCallbacks.ready(ActorSystem.scala:818)
        at 
akka.actor.ActorSystemImpl$TerminationCallbacks.ready(ActorSystem.scala:787)
        at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:86)
        at scala.concurrent.Await$$anonfun$ready$1.apply(package.scala:86)
        at 
scala.concurrent.BlockContext$DefaultBlockContext$.blockOn(BlockContext.scala:53)
        at scala.concurrent.Await$.ready(package.scala:86)
        at akka.actor.ActorSystemImpl.awaitTermination(ActorSystem.scala:643)
        at akka.actor.ActorSystemImpl.awaitTermination(ActorSystem.scala:644)
        at 
org.apache.flink.runtime.taskmanager.TaskManager$.runTaskManager(TaskManager.scala:1315)
        at 
org.apache.flink.runtime.taskmanager.TaskManager$.selectNetworkInterfaceAndRunTaskManager(TaskManager.scala:1150)
        at 
org.apache.flink.runtime.taskmanager.TaskManager$.main(TaskManager.scala:1059)
        at 
org.apache.flink.runtime.taskmanager.TaskManager.main(TaskManager.scala)

   Locked ownable synchronizers:
        - None

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