ml.shifu.guagua.master
类 MemoryStatsMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>

java.lang.Object
  ml.shifu.guagua.master.BasicMasterInterceptor<MASTER_RESULT,WORKER_RESULT>
      ml.shifu.guagua.master.MemoryStatsMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

类型参数：

MASTER_RESULT - master result for computation in each iteration.

WORKER_RESULT - worker result for computation in each iteration.

所有已实现的接口：

MasterInterceptor<MASTER_RESULT,WORKER_RESULT>

public class MemoryStatsMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable>
extends BasicMasterInterceptor<MASTER_RESULT,WORKER_RESULT>

MemoryStatsMasterInterceptor is used to print memory usage for each master checkpoint.

MemoryStatsMasterInterceptor is set as default system interceptor. So memory usage will be found in each task's log file.

构造方法摘要

MemoryStatsMasterInterceptor()

方法摘要

void	postApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point after any computation logic.
void	postIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point after computation of each iteration.
void	preApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point before any computation logic.
void	preIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context) The hook point before computation of each iteration.

从类 java.lang.Object 继承的方法

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

构造方法详细信息

MemoryStatsMasterInterceptor

public MemoryStatsMasterInterceptor()

方法详细信息

preIteration

public void preIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

从接口 MasterInterceptor 复制的描述

The hook point before computation of each iteration.

指定者：

接口 MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 preIteration

覆盖：

类 BasicMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 preIteration

参数：

context - the master context instance which includes worker results and other useful parameters.

postIteration

public void postIteration(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

从接口 MasterInterceptor 复制的描述

The hook point after computation of each iteration.

指定者：

接口 MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 postIteration

覆盖：

类 BasicMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 postIteration

参数：

context - the master context instance which includes worker results and other useful parameters.

preApplication

public void preApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

从接口 MasterInterceptor 复制的描述

The hook point before any computation logic.

指定者：

接口 MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 preApplication

覆盖：

类 BasicMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 preApplication

参数：

context - the master context instance which includes worker results and other useful parameters.

postApplication

public void postApplication(MasterContext<MASTER_RESULT,WORKER_RESULT> context)

从接口 MasterInterceptor 复制的描述

The hook point after any computation logic.

指定者：

接口 MasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 postApplication

覆盖：

类 BasicMasterInterceptor<MASTER_RESULT extends Bytable,WORKER_RESULT extends Bytable> 中的 postApplication

参数：

context - the master context instance which includes worker results and other useful parameters.