Day 12 Broadcast Variables and Accumulators Tamil Explanation

This session introduces two powerful features in Apache Spark that optimize distributed computing.- Broadcast Variables allow efficient sharing of read-only data across worker nodes, reducing communication overhead.- Accumulators provide a way to aggregate values across tasks, useful for counters and sums.Through practical examples (like adjusting Indhu’s scores with broadcast data and tracking totals with accumulators), learners will understand how to improve performance and maintain accuracy in large-scale data processing.

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