How to light your 'Spark on a stick'

Revisiting the Spark application UI

Since we ran a few transformations and actions in the previous section, the Spark stages UI should now show some stages completed.

Refresh the Stages UI:

Notice above that each of the transformations or actions that you ran earlier corresponds to a stage of execution in Spark.

Try clicking on the last stage (saveAsTextFile) to see granular details about that specific stage: