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Interview Questions
Spark Out Of Memory Error
Spark Out Of Memory Error OOM error Spark driver level: 1. Spark driver is the main control of spark application .if its configured with l…
Interview Questions
Apache Spark Interview question Set 3
1. Diff e rence between Coalesce and repartition ? Repartition is used to increase or decrease the number of partition with equal sized data…
Interview Questions
Apache Spark interview questions Set 2
1. Difference between groupByKey() and reduceByKey() in spark? groupBykey() works on dataset with key value pair(K,V) and groups data based on the …
