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
 Iterable<org.apache.hadoop.fs.FileStatus> getDeletableFiles(Iterable<org.apache.hadoop.fs.FileStatus> files)
          Determines which of the given files are safe to delete
 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, isLogDeletable
 
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

getDeletableFiles

public Iterable<org.apache.hadoop.fs.FileStatus> getDeletableFiles(Iterable<org.apache.hadoop.fs.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

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.