Package org.apache.hadoop.fs

Class DU

java.lang.Object

org.apache.hadoop.fs.CachingGetSpaceUsed

org.apache.hadoop.fs.DU

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, GetSpaceUsed

@LimitedPrivate({"HDFS","MapReduce"})
@Evolving
public class DU
extends CachingGetSpaceUsed

Filesystem disk space usage statistics. Uses the unix 'du' program

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.hadoop.fs.GetSpaceUsed

GetSpaceUsed.Builder

Field Summary

Fields inherited from class org.apache.hadoop.fs.CachingGetSpaceUsed

used

Constructor Summary

Constructors

Constructor	Description
DU(java.io.File path, long interval, long jitter, long initialUsed)
DU(GetSpaceUsed.Builder builder)

Method Summary

Modifier and Type	Method	Description
static void	main(java.lang.String[] args)
protected void	refresh()

Methods inherited from class org.apache.hadoop.fs.CachingGetSpaceUsed

close, getDirPath, getJitter, getRefreshInterval, getUsed, incDfsUsed, setShouldFirstRefresh, setUsed

Methods inherited from class java.lang.Object

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

Constructor Detail

DU

@VisibleForTesting
public DU(java.io.File path,
          long interval,
          long jitter,
          long initialUsed)
   throws java.io.IOException

Throws:

java.io.IOException

DU

public DU(GetSpaceUsed.Builder builder)
   throws java.io.IOException

Throws:

java.io.IOException

Method Detail

refresh

protected void refresh()

Specified by:

refresh in class CachingGetSpaceUsed

main

public static void main(java.lang.String[] args)
                 throws java.lang.Exception

Throws:

java.lang.Exception