Apache flink（稳定版本1.6.2）不起作用

"最近，apache flink的稳定版本（1.6.2）发布了。我读了这个指令。但是当我运行以下命令时：

./bin/flink run examples/streaming/SocketWindowWordCount.jar --port 9000
我收到以下错误：The program finished with the following exception:
org.apache.flink.client.program.ProgramInvocationException: Job failed. (JobID: 264564a337d4c6705bde681b34010d28)

at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:268)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:486)
at org.apache.flink.streaming.api.environment.StreamContextEnvironment.execute(StreamContextEnvironment.java:66)
at org.apache.flink.streaming.examples.socket.SocketWindowWordCount.main(SocketWindowWordCount.java:92)
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:529)
at org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:421)
at org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:426)
at org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:816)
at org.apache.flink.client.cli.CliFrontend.runProgram(CliFrontend.java:290)
at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:216)
at org.apache.flink.client.cli.CliFrontend.parseParameters(CliFrontend.java:1053)
at org.apache.flink.client.cli.CliFrontend.lambda$main$11(CliFrontend.java:1129)
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:1836)
at org.apache.flink.runtime.security.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1129)

Caused by: org.apache.flink.runtime.client.JobExecutionException: Job execution failed.

at org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146)
at org.apache.flink.client.program.rest.RestClusterClient.submitJob(RestClusterClient.java:265)
... 20 more

Caused by: java.net.ConnectException: Connection refused (Connection refused)

at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at org.apache.flink.streaming.api.functions.source.SocketTextStreamFunction.run(SocketTextStreamFunction.java:96)
at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:94)
at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:58)
at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTask.java:99)
at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:300)
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:711)
at java.lang.Thread.run(Thread.java:748)                                                                                                                                                                          我找到了这个链接：当我按照flink-1.4的快速入门并使用“./bin/flink run examples / streaming / SocketWindowWordCount.jar --port 9000”时，Flink程序无法提交。但是，它没有帮助。我试着用Flink 1.6.2 with Hadoop® 2.8以及Flink 1.5.5 with Hadoop® 2.8上mac os和ubuntu。但我得到了同样的错误。

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