org.apache.hadoop.hive.ql.reexec

Class ReCompileWithoutCBOPlugin

java.lang.Object

org.apache.hadoop.hive.ql.reexec.ReCompileWithoutCBOPlugin

All Implemented Interfaces:

IReExecutionPlugin

public class ReCompileWithoutCBOPlugin
extends Object
implements IReExecutionPlugin

Re-compiles the query without CBO

Constructor Summary

Constructors

Constructor and Description
ReCompileWithoutCBOPlugin()

Method Summary

Modifier and Type	Method and Description
void	initialize(Driver driver) Called when the Driver is being initialized The plugin may add hooks/etc to tap into the system.
void	prepareToReCompile() The plugin should prepare for the recompilation of the query
boolean	shouldReCompile(int executionNum) The query has failed.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hadoop.hive.ql.reexec.IReExecutionPlugin

afterCompile, afterExecute, beforeCompile, beforeExecute, prepareToReExecute, shouldReExecute, shouldReExecuteAfterCompile

Constructor Detail

ReCompileWithoutCBOPlugin

public ReCompileWithoutCBOPlugin()

Method Detail

initialize

public void initialize(Driver driver)

Description copied from interface: IReExecutionPlugin

Called when the Driver is being initialized The plugin may add hooks/etc to tap into the system.

Specified by:

initialize in interface IReExecutionPlugin

prepareToReCompile

public void prepareToReCompile()

Description copied from interface: IReExecutionPlugin

The plugin should prepare for the recompilation of the query

Specified by:

prepareToReCompile in interface IReExecutionPlugin

shouldReCompile

public boolean shouldReCompile(int executionNum)

Description copied from interface: IReExecutionPlugin

The query has failed. Should we try recompilation?

Specified by:

shouldReCompile in interface IReExecutionPlugin

Parameters:

executionNum - Number of the previous compilations

Returns: