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From Till Rohrmann <trohrm...@apache.org>
Subject Re: Cannot start FlinkMiniCluster.WebServer using different port in FlinkMiniCluster
Date Wed, 20 Jan 2016 16:58:07 GMT
It seems that the web server could not been instantiated. The reason for
this problem should be in your logs. Could you look it up and post the
reason here?

Additionally, we should build in a sanity check to avoid the NPE.

Cheers,
Till

On Wed, Jan 20, 2016 at 5:06 PM, HungChang <unicorn.banachi@gmail.com>
wrote:

> The original port is used so I'm changing the web port but it fails to.
> Can I
> ask which part I made a mistake?
>
> The error:
>
> Exception in thread "main" java.lang.NullPointerException
>     at
>
> org.apache.flink.runtime.minicluster.FlinkMiniCluster.startWebServer(FlinkMiniCluster.scala:295)
>     at
>
> org.apache.flink.runtime.minicluster.FlinkMiniCluster.start(FlinkMiniCluster.scala:268)
>     at
>
> org.apache.flink.runtime.minicluster.FlinkMiniCluster.start(FlinkMiniCluster.scala:226)
>     at
>
> org.apache.flink.streaming.api.environment.LocalStreamEnvironment.execute(LocalStreamEnvironment.java:101)
>     at
>
> org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:1181)
>
> The code that changing the configuration of execution environment.
>
>     Configuration env_config = new Configuration();
>     env_config.setBoolean(ConfigConstants.LOCAL_START_WEBSERVER, true);
>
>     env_config.setString(ConfigConstants.JOB_MANAGER_WEB_PORT_KEY, "9999");
>
>     env_config.setString(ConfigConstants.JOB_MANAGER_WEB_LOG_PATH_KEY,
> "./data/dummyLogFile.txt");
>
>     StreamExecutionEnvironment env = new
> LocalStreamEnvironment(env_config);
>
>    /* Some code here
>           ....*/
>
>     env.execute();
>
> Flink version is 0.10.1.
>
>
>
> --
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