Storm UI topology not working

Question

We are executing a Storm topology in LocalCluster. Storm topology is executing fine and able to connect Storm UI (8090). But Storm UI is not displaying the running topology information.

LocalCluster cluster = new LocalCluster();

and submitting like:

bin/storm jar bin/StormTest-0.0.1-SNAPSHOT.jar com.abzooba.storm.twitter.TwitterTopologyCreator Twitter

Answer 1

LocalCluster does not have UI support... Thus the UI you are seeing belongs to a different Storm cluster.

To be more precise: LocalCluster is not really a cluster; it's a local JVM process that executes the whole topology (mimicking a real Storm cluster). Thus, bin/storm jar ... does not send the topology to any cluster but runs a local JVM (I assume, that bin/storm blocks). If you want to submit to a real cluster (and get an UI, you need to use StormSubmitter).