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.bana...@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. > > > > -- > View this message in context: > http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Cannot-start-FlinkMiniCluster-WebServer-using-different-port-in-FlinkMiniCluster-tp4414.html > Sent from the Apache Flink User Mailing List archive. mailing list archive > at Nabble.com. >
