org.apache.hadoop.hbase.master.cleaner

类 HFileLinkCleaner

java.lang.Object

org.apache.hadoop.hbase.BaseConfigurable

org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate

org.apache.hadoop.hbase.master.cleaner.BaseHFileCleanerDelegate

org.apache.hadoop.hbase.master.cleaner.HFileLinkCleaner

所有已实现的接口:

org.apache.hadoop.conf.Configurable, FileCleanerDelegate, Stoppable

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class HFileLinkCleaner
extends BaseHFileCleanerDelegate

HFileLink cleaner that determines if a hfile should be deleted. HFiles can be deleted only if there're no links to them. When a HFileLink is created a back reference file is created in: /hbase/archive/table/region/cf/.links-hfile/ref-region.ref-table To check if the hfile can be deleted the back references folder must be empty.

构造器概要

构造器

构造器和说明
HFileLinkCleaner()

方法概要

限定符和类型	方法和说明
boolean	isFileDeletable(org.apache.hadoop.fs.FileStatus fStat) Should the master delete the file or keep it?
void	setConf(org.apache.hadoop.conf.Configuration conf)

从类继承的方法 org.apache.hadoop.hbase.master.cleaner.BaseHFileCleanerDelegate

isStopped, stop

从类继承的方法 org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate

getDeletableFiles, init

从类继承的方法 org.apache.hadoop.hbase.BaseConfigurable

getConf

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.hadoop.hbase.master.cleaner.FileCleanerDelegate

preClean

从接口继承的方法 org.apache.hadoop.conf.Configurable

getConf

构造器详细资料

HFileLinkCleaner

public HFileLinkCleaner()

方法详细资料

isFileDeletable

public boolean isFileDeletable(org.apache.hadoop.fs.FileStatus fStat)

从类复制的说明: BaseFileCleanerDelegate

Should the master delete the file or keep it?

指定者:

isFileDeletable 在类中 BaseFileCleanerDelegate

参数:

fStat - file status of the file to check

返回:

true if the file is deletable, false if not

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)

指定者:

setConf 在接口中 org.apache.hadoop.conf.Configurable

覆盖:

setConf 在类中 BaseConfigurable