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What role does worker node play in Apache Spark Cluster? And what is the need to register a worker node with the driver program?
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Answer / Veer Pal
In an Apache Spark cluster, worker nodes execute tasks that are distributed from the driver program. Each worker node runs one or more executors that manage tasks and communicate with other workers in the cluster. Registering a worker node with the driver program is essential to ensure that the workers know where to send tasks for execution.
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