On EMR I see that my job took 12 minutes to run - according to the Elapsed Time column. However, when I go to the Spark UI > Executors tab the Task Time (GC Time) shows 1 hr (4 s).
I totalled up the times as well i could from the Event Timeline and its aprrox 12 minutes.
1 - What does the Task Time (GC Time) mean? I also see in the Spark UI > Jobs > Event Timeline that the job took 12 minutes to run.
2 - Does this affect the total time for the job to run in any way?
