Hi Brett,

I have just tried it locally and it works for me.
It looks like some networking issue with the JVM or environment setup where 
Flink is started.

Best,
Andrey

> On 18 Dec 2018, at 05:28, Brett Marcott <brett.marc...@gmail.com> wrote:
> 
> Hi Vino,
> 
> I am running everything (and generating the exception) locally I believe, as 
> the tutorial instructs.
> 
> Thanks,
> Brett
> 
> On Mon, Dec 17, 2018 at 6:12 PM vino yang <yanghua1...@gmail.com 
> <mailto:yanghua1...@gmail.com>> wrote:
> Hi Brett,
> 
> Is your exception generated on your local machine or generated on a remote 
> node?
> 
> Best,
> Vino
> 
> Brett Marcott <brett.marc...@gmail.com <mailto:brett.marc...@gmail.com>> 
> 于2018年12月15日周六 下午5:38写道:
> Hi Flink users,
> 
> I am attempting to follow the tutorial here:
> https://ci.apache.org/projects/flink/flink-docs-release-1.7/tutorials/datastream_api.html
>  
> <https://ci.apache.org/projects/flink/flink-docs-release-1.7/tutorials/datastream_api.html>
> 
> However I am hitting the below error:
> org.apache.flink.runtime.client.JobExecutionException: Job execution failed.
>       at 
> org.apache.flink.runtime.jobmaster.JobResult.toJobExecutionResult(JobResult.java:146)
>       at 
> org.apache.flink.runtime.minicluster.MiniCluster.executeJobBlocking(MiniCluster.java:647)
>       at 
> org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:123)
>       at 
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1510)
>       at wikiedits.WikipediaAnalysis.main(WikipediaAnalysis.java:42)
>       at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>       at 
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>       at 
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>       at java.base/java.lang.reflect.Method.invoke(Method.java:564)
>       at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:282)
>       at java.base/java.lang.Thread.run(Thread.java:844)
> Caused by: java.net.ConnectException: Operation timed out (Connection timed 
> out)
>       at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
>       at 
> java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:400)
>       at 
> java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:243)
>       at 
> java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:225)
>       at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:402)
>       at java.base/java.net.Socket.connect(Socket.java:591)
>       at java.base/java.net.Socket.connect(Socket.java:540)
>       at java.base/java.net.Socket.<init>(Socket.java:436)
>       at java.base/java.net.Socket.<init>(Socket.java:213)
>       at org.schwering.irc.lib.IRCConnection.connect(IRCConnection.java:295)
>       at 
> org.apache.flink.streaming.connectors.wikiedits.WikipediaEditEventIrcStream.connect(WikipediaEditEventIrcStream.java:62)
>       at 
> org.apache.flink.streaming.connectors.wikiedits.WikipediaEditsSource.run(WikipediaEditsSource.java:80)
>       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:704)
>       ... 1 more
> 
> 
> Below connection works fine on command line:
> $ nc -z irc.wikimedia.org <http://irc.wikimedia.org/> 6667
> Connection to irc.wikimedia.org <http://irc.wikimedia.org/> port 6667 [tcp/*] 
> succeeded!
> 
> Any tips?
> 
> Thanks,
> 
> Brett

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