LogCleaner (Apache HBase 1.2.12 API)

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Summary:
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Detail:
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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
Modifier and Type Field and Description

private static org.apache.commons.logging.Log LOG
- Fields inherited from class org.apache.hadoop.hbase.master.cleaner.CleanerChore
  cleanersChain, params

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
  checkAndDeleteDirectory, 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

- Field Detail
  - LOG
```
private static final org.apache.commons.logging.Log LOG
```
- 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

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