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Explain the default level of parallelism in Apache Spark

Question Posted / Khushboo Agarwal

Answer Posted / Khushboo Agarwal

The default level of parallelism in Apache Spark is determined by the number of cores available on the local machine for standalone mode or the number of cores requested from the cluster manager (YARN, Mesos) in cluster mode. For example, if you have 4 cores, the default parallelism will be 4.

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