org.apache.hadoop.hdfs.server.datanode

Interface FSDatasetInterface.FSVolumeInterface

Enclosing interface:

org.apache.hadoop.hdfs.server.datanode.FSDatasetInterface

public static interface FSDatasetInterface.FSVolumeInterface

This is an interface for the underlying volume.

See Also:

FSDataset.FSVolume

Method Summary

Methods

Modifier and Type	Method and Description
long	getAvailable()
String[]	getBlockPoolList()
File	getDirectory(String bpid)
File	getFinalizedDir(String bpid)

Method Detail

getBlockPoolList

String[] getBlockPoolList()

Returns:

a list of block pools.

getAvailable

long getAvailable()
                  throws IOException

Returns:

the available storage space in bytes.

Throws:

IOException

getDirectory

File getDirectory(String bpid)
                  throws IOException

Returns:

the directory for the block pool.

Throws:

IOException

getFinalizedDir

File getFinalizedDir(String bpid)
                     throws IOException

Returns:

the directory for the finalized blocks in the block pool.

Throws:

IOException