title: Apache flink (Stable version 1.6.2) does not work
body: <p>Recently, the stable version (1.6.2) of apache flink was released. I read <a href="https://ci.apache.org/projects/flink/flink-docs-stable/quickstart/setup_quickstart.html" rel="nofollow noreferrer">this instruction</a>. But when I run the following command:</p>
  
  <pre><code>./bin/flink run examples/streaming/SocketWindowWordCount.jar --port 9000
  </code></pre>
  
  <p>I get the following error:</p>
  
  <pre><code> 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)
  </code></pre>
  
  <p>I found this link:<a href="https://stackoverflow.com/questions/48438501/flink-program-cannot-submit-when-i-follow-flink-1-4s-quickstart-and-use-bin">Flink program cannot submit when i follow flink-1.4&#39;s quickstart and use &quot;./bin/flink run examples/streaming/SocketWindowWordCount.jar --port 9000&quot;</a>. However, it didn't help. I tried with <code>Flink 1.6.2 with Hadoop® 2.8</code> as well as <code>Flink 1.5.5 with Hadoop® 2.8</code> on <code>mac os</code> and <code>ubuntu</code>. But I just got the same error.</p>