org.apache.hadoop.mapred

类 JobHistory.HistoryCleaner

java.lang.Object

org.apache.hadoop.mapred.JobHistory.HistoryCleaner

所有已实现的接口:

Runnable

封闭类:

JobHistory

public static class JobHistory.HistoryCleaner
extends Object
implements Runnable

Delete history files older than one month. Update master index and remove all jobs older than one month. Also if a job tracker has no jobs in last one month remove reference to the job tracker.

构造器概要

构造器

构造器和说明
JobHistory.HistoryCleaner()

方法概要

方法

限定符和类型	方法和说明
void	clean(long now)
void	run() Cleans up history data.

从类继承的方法 java.lang.Object

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

构造器详细资料

JobHistory.HistoryCleaner

public JobHistory.HistoryCleaner()

方法详细资料

run

public void run()

Cleans up history data.

指定者:

run 在接口中 Runnable

clean

public void clean(long now)