org.apache.hadoop.hbase.master.cleaner

Class LogCleaner

java.lang.Object

org.apache.hadoop.hbase.ScheduledChore

org.apache.hadoop.hbase.master.cleaner.CleanerChore<BaseLogCleanerDelegate>

org.apache.hadoop.hbase.master.cleaner.LogCleaner

All Implemented Interfaces:

Runnable

@InterfaceAudience.Private
public class LogCleaner
extends CleanerChore<BaseLogCleanerDelegate>

This Chore, every time it runs, will attempt to delete the WALs in the old logs folder. The WAL is only deleted if none of the cleaner delegates says otherwise.

See Also:

BaseLogCleanerDelegate

Field Summary

Fields inherited from class org.apache.hadoop.hbase.master.cleaner.CleanerChore

cleanersChain

Constructor Summary

Constructors

Constructor and Description
LogCleaner(int p, Stoppable s, org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path oldLogDir)

Method Summary

Methods

Modifier and Type	Method and Description
protected boolean	validate(org.apache.hadoop.fs.Path file) Validate the file to see if it even belongs in the directory.

Methods inherited from class org.apache.hadoop.hbase.master.cleaner.CleanerChore

chore, cleanup

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

cancel, cancel, choreForTesting, getInitialDelay, getName, getPeriod, getStopper, getTimeUnit, initialChore, isInitialChoreComplete, isScheduled, run, toString, triggerNow

Methods inherited from class java.lang.Object

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

Constructor Detail

LogCleaner

public LogCleaner(int p,
          Stoppable s,
          org.apache.hadoop.conf.Configuration conf,
          org.apache.hadoop.fs.FileSystem fs,
          org.apache.hadoop.fs.Path oldLogDir)

Parameters:

p - the period of time to sleep between each run

s - the stopper

conf - configuration to use

fs - handle to the FS

oldLogDir - the path to the archived logs

Method Detail

validate

protected boolean validate(org.apache.hadoop.fs.Path file)

Description copied from class: CleanerChore

Validate the file to see if it even belongs in the directory. If it is valid, then the file will go through the cleaner delegates, but otherwise the file is just deleted.

Specified by:

validate in class CleanerChore<BaseLogCleanerDelegate>

Parameters:

file - full Path of the file to be checked

Returns:

true if the file is valid, false otherwise