org.apache.hadoop.hive.ql.optimizer.spark

Class SetSparkReducerParallelism

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.spark.SetSparkReducerParallelism

All Implemented Interfaces:

NodeProcessor

public class SetSparkReducerParallelism
extends Object
implements NodeProcessor

SetSparkReducerParallelism determines how many reducers should be run for a given reduce sink, clone from SetReducerParallelism.

Constructor Summary

Constructors

Constructor and Description
SetSparkReducerParallelism()

Method Summary

Methods

Modifier and Type	Method and Description
Object	process(Node nd, Stack<Node> stack, NodeProcessorCtx procContext, Object... nodeOutputs) Generic process for all ops that don't have specific implementations.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SetSparkReducerParallelism

public SetSparkReducerParallelism()

Method Detail

process

public Object process(Node nd,
             Stack<Node> stack,
             NodeProcessorCtx procContext,
             Object... nodeOutputs)
               throws SemanticException

Description copied from interface: NodeProcessor

Generic process for all ops that don't have specific implementations.

Specified by:

process in interface NodeProcessor

Parameters:

nd - operator to process

procContext - operator processor context

nodeOutputs - A variable argument list of outputs from other nodes in the walk

Returns:

Object to be returned by the process call

Throws:

SemanticException