Monitoring Spark jobs
Spark provides web UI for monitoring all the jobs running or completed on computing nodes (drivers or executors). In this section, we will discuss in brief how to monitor Spark jobs using Spark web UI with appropriate examples. We will see how to monitor the progress of jobs (including submitted, queued, and running jobs). All the tabs in the Spark web UI will be discussed briefly. Finally, we will discuss the logging procedure in Spark for better tuning.
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...