org.apache.flink.client.program.ProgramInvocationException: The program execution failed: Job execution failed.
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:409)
	at org.apache.flink.client.program.StandaloneClusterClient.submitJob(StandaloneClusterClient.java:95)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:382)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:369)
	at org.apache.flink.client.program.ContextEnvironment.execute(ContextEnvironment.java:61)
	at edu.xxx.cps.parallel.XXXXX.main(XXXXX.java:64)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:509)
	at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:403)
	at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:320)
	at org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:777)
	at org.apache.flink.client.CliFrontend.run(CliFrontend.java:253)
	at org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:1005)
	at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1048)
Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply$mcV$sp(JobManager.scala:822)
	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:768)
	at org.apache.flink.runtime.jobmanager.JobManager$$anonfun$handleMessage$1$$anonfun$applyOrElse$7.apply(JobManager.scala:768)
	at scala.concurrent.impl.Future$PromiseCompletingRunnable.liftedTree1$1(Future.scala:24)
	at scala.concurrent.impl.Future$PromiseCompletingRunnable.run(Future.scala:24)
	at akka.dispatch.TaskInvocation.run(AbstractDispatcher.scala:41)
	at akka.dispatch.ForkJoinExecutorConfigurator$AkkaForkJoinTask.exec(AbstractDispatcher.scala:401)
	at scala.concurrent.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260)
	at scala.concurrent.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339)
	at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)
	at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)
Caused by: java.lang.RuntimeException: Initializing the input processing failed: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: Connecting the channel failed: Connecting to remote task manager + 'worker/127.0.1.1:44310' has failed. This might indicate that the remote task manager has been lost.
	at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:331)
	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:585)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.RuntimeException: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: Connecting the channel failed: Connecting to remote task manager + 'worker/127.0.1.1:44310' has failed. This might indicate that the remote task manager has been lost.
	at org.apache.flink.runtime.operators.sort.UnilateralSortMerger.getIterator(UnilateralSortMerger.java:619)
	at org.apache.flink.runtime.operators.BatchTask.getInput(BatchTask.java:1098)
	at org.apache.flink.runtime.operators.BatchTask.initLocalStrategies(BatchTask.java:831)
	at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:327)
	... 2 more
Caused by: java.io.IOException: Thread 'SortMerger Reading Thread' terminated due to an exception: Connecting the channel failed: Connecting to remote task manager + 'worker/127.0.1.1:44310' has failed. This might indicate that the remote task manager has been lost.
	at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:800)
Caused by: java.io.IOException: Connecting the channel failed: Connecting to remote task manager + 'worker/127.0.1.1:44310' has failed. This might indicate that the remote task manager has been lost.
	at org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory$ConnectingChannel.waitForChannel(PartitionRequestClientFactory.java:196)
	at org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory$ConnectingChannel.access$000(PartitionRequestClientFactory.java:131)
	at org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory.createPartitionRequestClient(PartitionRequestClientFactory.java:83)
	at org.apache.flink.runtime.io.network.netty.NettyConnectionManager.createPartitionRequestClient(NettyConnectionManager.java:60)
	at org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel.requestSubpartition(RemoteInputChannel.java:118)
	at org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.requestPartitions(SingleInputGate.java:394)
	at org.apache.flink.runtime.io.network.partition.consumer.SingleInputGate.getNextBufferOrEvent(SingleInputGate.java:413)
	at org.apache.flink.runtime.io.network.api.reader.AbstractRecordReader.getNextRecord(AbstractRecordReader.java:87)
	at org.apache.flink.runtime.io.network.api.reader.MutableRecordReader.next(MutableRecordReader.java:42)
	at org.apache.flink.runtime.operators.util.ReaderIterator.next(ReaderIterator.java:59)
	at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ReadingThread.go(UnilateralSortMerger.java:973)
	at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:796)
Caused by: org.apache.flink.runtime.io.network.netty.exception.RemoteTransportException: Connecting to remote task manager + 'worker/127.0.1.1:44310' has failed. This might indicate that the remote task manager has been lost.
	at org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory$ConnectingChannel.operationComplete(PartitionRequestClientFactory.java:219)
	at org.apache.flink.runtime.io.network.netty.PartitionRequestClientFactory$ConnectingChannel.operationComplete(PartitionRequestClientFactory.java:131)
	at io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:680)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:603)
	at io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:563)
	at io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:424)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.fulfillConnectPromise(AbstractNioChannel.java:268)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:284)
	at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:528)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468)
	at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382)
	at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354)
	at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:111)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.ConnectException: Connection refused: worker/127.0.1.1:44310
	at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
	at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:739)
	at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:224)
	at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:281)
	... 6 more