org.apache.spark

Interface ExecutorAllocationClient

All Known Implementing Classes:

CoarseGrainedSchedulerBackend, CoarseMesosSchedulerBackend, SimrSchedulerBackend, SparkContext, SparkDeploySchedulerBackend, YarnSchedulerBackend

public interface ExecutorAllocationClient

A client that communicates with the cluster manager to request or kill executors.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	killExecutor(String executorId) Request that the cluster manager kill the specified executor.
boolean	killExecutors(scala.collection.Seq<String> executorIds) Request that the cluster manager kill the specified executors.
boolean	requestExecutors(int numAdditionalExecutors) Request an additional number of executors from the cluster manager.

Method Detail

requestExecutors

boolean requestExecutors(int numAdditionalExecutors)

Request an additional number of executors from the cluster manager. Return whether the request is acknowledged by the cluster manager.

killExecutors

boolean killExecutors(scala.collection.Seq<String> executorIds)

Request that the cluster manager kill the specified executors. Return whether the request is acknowledged by the cluster manager.

killExecutor

boolean killExecutor(String executorId)

Request that the cluster manager kill the specified executor. Return whether the request is acknowledged by the cluster manager.