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What is an accumulator in spark?

Question Posted / priyanka jaiswal


What is an accumulator in spark?..

Answer / Vinay Kumar Sharma

An accumulator in Spark is a variable that can be updated by each task during a computation. It allows you to store a value that accumulates over the course of the application, but it does not persist across iterations. Accumulators are useful for aggregating results from multiple tasks.

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