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Questions tagged optimization · hard
Challenges with Spark Jobs and Resolutions
Conceptualize and design a real-time streaming data pipeline end-to-end.
Define what a User-Defined Function (UDF) is and how to register it in PySpark.
Describe how you would monitor ETL job performance and handle long-running tasks.
Describe how you would optimize a join between two large tables where one is significantly smaller, using broadcast joins in PySpark.
Describe how you would optimize slow-running Spark jobs in a distributed environment.
Describe the role of a DAG Scheduler in PySpark
Describe the stages of a Spark job and strategies to optimize Spark performance for large datasets.
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