cascading.flow.tez.planner

Class HashJoinHadoop2TezRuleRegistry

java.lang.Object

cascading.flow.planner.rule.RuleRegistry

cascading.flow.tez.planner.HashJoinHadoop2TezRuleRegistry

public class HashJoinHadoop2TezRuleRegistry
extends cascading.flow.planner.rule.RuleRegistry

The HashJoinHadoop2TezRuleRegistry provides support for assemblies using HashJoin pipes.

Detecting and optimizing for HashJoin pipes adds further complexity and time to converge on a valid physical plan.

If facing slowdowns, and no HashJoins are used, switch to the NoHashJoinHadoop2TezRuleRegistry via the appropriate FlowConnector constructor.

Constructor Summary

Constructors

Constructor and Description
HashJoinHadoop2TezRuleRegistry()

Method Summary

Methods inherited from class cascading.flow.planner.rule.RuleRegistry

addDefaultElementFactory, addElementFactory, addRule, enableDebugLogging, enabledResolveElements, equals, getElementFactory, getName, getProcessLevels, getRulesFor, hasElementFactory, hashCode, hasRule, restoreLogging, setResolveElementsEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

HashJoinHadoop2TezRuleRegistry

public HashJoinHadoop2TezRuleRegistry()