ml.shifu.guagua.hadoop

Class ZooKeeperMasterInterceptor<MASTER_RESULT extends ml.shifu.guagua.io.Bytable,WORKER_RESULT extends ml.shifu.guagua.io.Bytable>

java.lang.Object

ml.shifu.guagua.master.BasicMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

ml.shifu.guagua.hadoop.ZooKeeperMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

All Implemented Interfaces:

ml.shifu.guagua.master.MasterInterceptor<MASTER_RESULT,WORKER_RESULT>

public class ZooKeeperMasterInterceptor<MASTER_RESULT extends ml.shifu.guagua.io.Bytable,WORKER_RESULT extends ml.shifu.guagua.io.Bytable>
extends ml.shifu.guagua.master.BasicMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

To start zookeeper instance in cluster environment.

Compare with start zookeeper instance in client process, ZooKeeperMasterInterceptor can be used in cluster and even to start zookeeper ensemble in cluster to void single point failure issue.

Constructor Summary

Constructors

Constructor and Description
ZooKeeperMasterInterceptor()

Method Summary

Modifier and Type	Method and Description
void	postApplication(ml.shifu.guagua.master.MasterContext<MASTER_RESULT,WORKER_RESULT> context)
void	preApplication(ml.shifu.guagua.master.MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Methods inherited from class ml.shifu.guagua.master.BasicMasterInterceptor

postIteration, preIteration

Methods inherited from class java.lang.Object

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

Constructor Detail

ZooKeeperMasterInterceptor

public ZooKeeperMasterInterceptor()

Method Detail

preApplication

public void preApplication(ml.shifu.guagua.master.MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Specified by:

preApplication in interface ml.shifu.guagua.master.MasterInterceptor<MASTER_RESULT extends ml.shifu.guagua.io.Bytable,WORKER_RESULT extends ml.shifu.guagua.io.Bytable>

Overrides:

preApplication in class ml.shifu.guagua.master.BasicMasterInterceptor<MASTER_RESULT extends ml.shifu.guagua.io.Bytable,WORKER_RESULT extends ml.shifu.guagua.io.Bytable>

postApplication

public void postApplication(ml.shifu.guagua.master.MasterContext<MASTER_RESULT,WORKER_RESULT> context)

Specified by:

postApplication in interface ml.shifu.guagua.master.MasterInterceptor<MASTER_RESULT extends ml.shifu.guagua.io.Bytable,WORKER_RESULT extends ml.shifu.guagua.io.Bytable>

Overrides:

postApplication in class ml.shifu.guagua.master.BasicMasterInterceptor<MASTER_RESULT extends ml.shifu.guagua.io.Bytable,WORKER_RESULT extends ml.shifu.guagua.io.Bytable>