org.apache.hadoop.hbase.backup

Class BackupHFileCleaner

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.backup.BackupHFileCleaner

All Implemented Interfaces:

Abortable, FileCleanerDelegate, Stoppable

@InterfaceAudience.LimitedPrivate(value="Configuration")
public class BackupHFileCleaner
extends BaseHFileCleanerDelegate
implements Abortable

Implementation of a file cleaner that checks if an hfile is still referenced by backup before deleting it from hfile archive directory.

Constructor Summary

Constructors

Constructor and Description
BackupHFileCleaner()

Method Summary

Modifier and Type	Method and Description
void	abort(String why, Throwable e) Abort the server or client.
Iterable<FileStatus>	getDeletableFiles(Iterable<FileStatus> files) Determines which of the given files are safe to delete
boolean	isAborted() Check if the server or client was aborted.
boolean	isFileDeletable(FileStatus fStat) Should the master delete the file or keep it?
boolean	isStopped()
void	setConf(Configuration config)
void	stop(String why) Stop this service.

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

getConf

Methods inherited from class java.lang.Object

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

Constructor Detail

BackupHFileCleaner

public BackupHFileCleaner()

Method Detail

getDeletableFiles

public Iterable<FileStatus> getDeletableFiles(Iterable<FileStatus> files)

Description copied from interface: FileCleanerDelegate

Determines which of the given files are safe to delete

Specified by:

getDeletableFiles in interface FileCleanerDelegate

Overrides:

getDeletableFiles in class BaseFileCleanerDelegate

Parameters:

files - files to check for deletion

Returns:

files that are ok to delete according to this cleaner

isFileDeletable

public boolean isFileDeletable(FileStatus fStat)

Description copied from class: BaseFileCleanerDelegate

Should the master delete the file or keep it?

Specified by:

isFileDeletable in class BaseFileCleanerDelegate

Parameters:

fStat - file status of the file to check

Returns:

true if the file is deletable, false if not

setConf

public void setConf(Configuration config)

Overrides:

setConf in class BaseConfigurable

stop

public void stop(String why)

Description copied from interface: Stoppable

Stop this service.

Specified by:

stop in interface Stoppable

Overrides:

stop in class BaseHFileCleanerDelegate

Parameters:

why - Why we're stopping.

isStopped

public boolean isStopped()

Specified by:

isStopped in interface Stoppable

Overrides:

isStopped in class BaseHFileCleanerDelegate

Returns:

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

abort

public void abort(String why,
                  Throwable e)

Description copied from interface: Abortable

Abort the server or client.

Specified by:

abort in interface Abortable

Parameters:

why - Why we're aborting.

e - Throwable that caused abort. Can be null.

isAborted

public boolean isAborted()

Description copied from interface: Abortable

Check if the server or client was aborted.

Specified by:

isAborted in interface Abortable

Returns:

true if the server or client was aborted, false otherwise