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What is meant by shared variable? What are the shared variables available in spark?

May 6, 2019 admin Leave a comment

What is a shared variable? A variable that is available on all of the executors or nodes that work on…

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Posted in: Uncategorized

How to prepare for Spark interview?

May 5, 2019 admin Leave a comment

How to prepare resume for Bigdata interview? Spark interview includes lot of other bigdata technologies like Hadoop, Hive, Sqoop, Flume…

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Posted in: Hadoop, Spark

Why/How Spark is faster than Hadoop?

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What is Hadoop? Hadoop is a framework that is used to process large data sets using a programming paradigm called…

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Posted in: Spark Filed under: Bigdata, Hadoop, Spark

What is the difference between repartition and coalesce?

admin 5 Comments

I’m not sure how many of us use these two operations frequently in our projects, but these two operations are…

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Posted in: Coalesce, Repartition, Shuffling, Spark Filed under: Coalesce, Partitioning, Repaartition, Spark
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