I think this null pointer comes when the log files are not found (bug in 0.10).
You can double check by either trying 1.0-SNAPSHOT or putting for test an absolute path of a file that exists for the log file. Greetings, Stephan On Wed, Jan 20, 2016 at 6:33 PM, Till Rohrmann <trohrm...@apache.org> wrote: > I guess it’s easiest to simply enable logging and see what the problem is. > If you run it from the IDE then you can also set a breakpoint in > WebMonitorUtils.startWebRuntimeMonitor and see what the exception is. > > Cheers, > Till > > > On Wed, Jan 20, 2016 at 6:04 PM, HungChang <unicorn.bana...@gmail.com> > wrote: > >> Yea I'm wondering why the web server cannot be instantiated because >> changing >> the port 8081 to 9999 works well in the following demo sample of Flink. >> >> https://github.com/dataArtisans/flink-streaming-demo/blob/master/src/main/scala/com/dataartisans/flink_demo/utils/DemoStreamEnvironment.scala >> >> so is the code of Flink syntax correct and I should try to find other >> issues? >> >> Best, >> >> Sendoh >> >> >> >> -- >> 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-tp4414p4420.html >> Sent from the Apache Flink User Mailing List archive. mailing list >> archive at Nabble.com. >> > >
