Spark web interface
The web UI (also known as Spark UI) is the web interface for running Spark applications to monitor the execution of jobs on a web browser such as Firefox or Google Chrome. When a SparkContext launches, a web UI that displays useful information about the application gets started on port 4040 in standalone mode. The Spark web UI is available in different ways depending on whether the application is still running or has finished its execution.
Also, you can use the web UI after the application has finished its execution by persisting all the events using EventLoggingListener. The EventLoggingListener, however, cannot work alone, and the incorporation of the Spark history server is required. Combining these two features, the ...
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