Four nodes, Driver and Worker is to start on the node processes, processes running in the JVM.
- Driver frequent communications between the cluster nodes
- Driver is responsible for tasks (tasks) the distribution and recovery results. Scheduling tasks. If the result of a very large task, do not recovered. Cause oom
- Worker node from inside the Standalone Resource Scheduling Resource Management framework. It is the JVM process
- Master is the master node which Standalone resource scheduling resource management framework. It is the JVM process