Which of the following describes the difference between cluster and client execution modes?
Which of the following describes the difference between cluster and client execution modes?
The key difference between cluster and client execution modes lies in where the driver is run. In cluster execution mode, the driver runs on a worker node within the cluster. This ensures that the driver is as close as possible to the data and resources it needs to manage. In client execution mode, the driver runs on the client machine, which is also referred to as the gateway machine or edge node. This mode can be more convenient for development and interactive applications as it provides direct communication with the cluster from the client machine.
Explanation: In cluster mode, the driver runs on the master node, while in client mode, the driver runs on a virtual machine in the cloud. This is wrong, since execution modes do not specify whether workloads are run in the cloud or on-premise. In cluster mode, each node will launch its own executor, while in client mode, executors will exclusively run on the client machine. Wrong, since in both cases executors run on worker nodes. In cluster mode, the driver runs on the edge node, while the client mode runs the driver in a worker node. Wrong C in cluster mode, the driver runs on a worker node. In client mode, the driver runs on the client machine. In client mode, the cluster manager runs on the same host as the driver, while in cluster mode, the cluster manager runs on a separate node. No. In both modes, the cluster manager is typically on a separate node C not on the same host as the driver. It only runs on the same host as the driver in local execution mode. More info: Learning Spark, 2nd Edition, Chapter 1, and Spark: The Definitive Guide, Chapter 15. ()