“I had a fantastic session with Erum focused on understanding the internals of the Spark UI. She explained complex concepts like stages, tasks, and shuffles in a very clear and visual manner. What really stood out was how she connected the theory with real Spark execution graphs and showed me how to interpret performance metrics effectively.
Erum also guided me through practical optimization techniques—like how to reduce shuffle overhead, how Spark breaks jobs into stages, and how to use partitioning intelligently. Highly recommended for anyone needing deep, hands-on Spark guidance“
SAM GON / Jul 2025