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

java.lang.Object
  org.apache.hadoop.hbase.BaseConfigurable
      org.apache.hadoop.hbase.master.cleaner.BaseHFileCleanerDelegate

All Implemented Interfaces:

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

Direct Known Subclasses:

TimeToLiveHFileCleaner

@InterfaceAudience.Private
public abstract class BaseHFileCleanerDelegate
extends BaseConfigurable
implements FileCleanerDelegate

Base class for the hfile cleaning function inside the master. By default, only the TimeToLiveHFileCleaner is called.

If other effects are needed, implement your own LogCleanerDelegate and add it to the configuration "hbase.master.hfilecleaner.plugins", which is a comma-separated list of fully qualified class names. The HFileCleaner will build the cleaner chain in order the order specified by the configuration.

For subclasses, setConf will be called exactly once before using the cleaner.

Since HFileCleanerDelegates are created in HFileCleaner by reflection, classes that implements this interface must provide a default constructor.

Constructor Summary

BaseHFileCleanerDelegate()

Method Summary

boolean	isStopped()
void	stop(java.lang.String why) Stop this service.

Methods inherited from class org.apache.hadoop.hbase.BaseConfigurable

getConf, setConf

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.hbase.master.cleaner.FileCleanerDelegate

isFileDeletable

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Constructor Detail

BaseHFileCleanerDelegate

public BaseHFileCleanerDelegate()

Method Detail

stop

public void stop(java.lang.String why)

Description copied from interface: Stoppable

Stop this service.

Specified by:

stop in interface Stoppable

Parameters:

why - Why we're stopping.

isStopped

public boolean isStopped()

Specified by:

isStopped in interface Stoppable

Returns:

True if Stoppable.stop(String) has been closed.