org.apache.hadoop.hbase.master.snapshot
Class SnapshotLogCleaner

java.lang.Object
  extended by org.apache.hadoop.hbase.BaseConfigurable
      extended by org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate
          extended by org.apache.hadoop.hbase.master.cleaner.BaseLogCleanerDelegate
              extended by org.apache.hadoop.hbase.master.snapshot.SnapshotLogCleaner
All Implemented Interfaces:
org.apache.hadoop.conf.Configurable, FileCleanerDelegate, Stoppable

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class SnapshotLogCleaner
extends BaseLogCleanerDelegate

Implementation of a log cleaner that checks if a log is still used by snapshots of HBase tables.


Constructor Summary
SnapshotLogCleaner()
           
 
Method Summary
 boolean isLogDeletable(org.apache.hadoop.fs.FileStatus fStat)
          Should the master delete the log or keep it?
 boolean isStopped()
           
 void setConf(org.apache.hadoop.conf.Configuration conf)
          This method should only be called once, as it starts a thread to keep the cache up-to-date.
 void stop(String why)
          Stop this service.
 
Methods inherited from class org.apache.hadoop.hbase.master.cleaner.BaseLogCleanerDelegate
isFileDeletable
 
Methods inherited from class org.apache.hadoop.hbase.master.cleaner.BaseFileCleanerDelegate
getDeletableFiles
 
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
 
Methods inherited from interface org.apache.hadoop.conf.Configurable
getConf
 

Constructor Detail

SnapshotLogCleaner

public SnapshotLogCleaner()
Method Detail

isLogDeletable

public boolean isLogDeletable(org.apache.hadoop.fs.FileStatus fStat)
Description copied from class: BaseLogCleanerDelegate
Should the master delete the log or keep it?

Implementing classes should override BaseLogCleanerDelegate.isFileDeletable(FileStatus) instead.

Overrides:
isLogDeletable in class BaseLogCleanerDelegate
Parameters:
fStat - file status of the file
Returns:
true if the log is deletable, false (default) if not

setConf

public void setConf(org.apache.hadoop.conf.Configuration conf)
This method should only be called once, as it starts a thread to keep the cache up-to-date.

Specified by:
setConf in interface org.apache.hadoop.conf.Configurable
Overrides:
setConf in class BaseConfigurable

stop

public void stop(String why)
Description copied from interface: Stoppable
Stop this service.

Parameters:
why - Why we're stopping.

isStopped

public boolean isStopped()
Returns:
True if Stoppable.stop(String) has been closed.


Copyright © 2014 The Apache Software Foundation. All Rights Reserved.