Hi,
I'm a bit confused about web UI access of a stand alone spark app. - When running a spark app, a web server is launched at localhost:4040. When the standalone app execution is finished, the web server is shut down. What's the use of this web server? There is no way of reviewing the data when the standalone app exists. - Creating SparkContext at spark://localhost:7077 creates another web UI. Is this web UI supposed to be used with localhost:4040, or is it a replacement? - Creating a context with spark://localhost:7077, and after running ./bin/start-all.sh, I get this warning: WARN ClusterScheduler: Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient memory
