Package org.apache.hadoop.fs

Class DFCachingGetSpaceUsed

java.lang.Object

org.apache.hadoop.fs.CachingGetSpaceUsed

org.apache.hadoop.fs.DFCachingGetSpaceUsed

All Implemented Interfaces:

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

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

Fast but inaccurate class to tell how much space HDFS is using. This class makes the assumption that the entire mount is used for HDFS and that no two hdfs data dirs are on the same disk. To use set fs.getspaceused.classname to org.apache.hadoop.fs.DFCachingGetSpaceUsed in your core-site.xml

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
DFCachingGetSpaceUsed(GetSpaceUsed.Builder builder)

Method Summary

Modifier and Type	Method	Description
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

DFCachingGetSpaceUsed

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

Throws:

java.io.IOException

Method Detail

refresh

protected void refresh()

Specified by:

refresh in class CachingGetSpaceUsed