org.apache.hadoop.hdfs.server.blockmanagement

Class DatanodeStorageInfo

java.lang.Object

org.apache.hadoop.hdfs.server.blockmanagement.DatanodeStorageInfo

public class DatanodeStorageInfo
extends Object

A Datanode has one or more storages. A storage in the Datanode is represented by this class.

Field Summary

Fields

Modifier and Type	Field and Description
static DatanodeStorageInfo[]	EMPTY_ARRAY

Method Summary

Methods

Modifier and Type	Method and Description
boolean	addBlock(org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo b)
boolean	equals(Object obj)
org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor	getDatanodeDescriptor()
int	hashCode()
static void	incrementBlocksScheduled(DatanodeStorageInfo... storages) Increment the number of blocks scheduled for each given storage
void	setUtilizationForTesting(long capacity, long dfsUsed, long remaining, long blockPoolUsed)
static org.apache.hadoop.hdfs.protocol.DatanodeInfo[]	toDatanodeInfos(DatanodeStorageInfo[] storages)
static String[]	toStorageIDs(DatanodeStorageInfo[] storages)
static StorageType[]	toStorageTypes(DatanodeStorageInfo[] storages)
String	toString()
void	updateFromStorage(DatanodeStorage storage)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EMPTY_ARRAY

public static final DatanodeStorageInfo[] EMPTY_ARRAY

Method Detail

toDatanodeInfos

public static org.apache.hadoop.hdfs.protocol.DatanodeInfo[] toDatanodeInfos(DatanodeStorageInfo[] storages)

toStorageIDs

public static String[] toStorageIDs(DatanodeStorageInfo[] storages)

toStorageTypes

public static StorageType[] toStorageTypes(DatanodeStorageInfo[] storages)

updateFromStorage

public void updateFromStorage(DatanodeStorage storage)

setUtilizationForTesting

public void setUtilizationForTesting(long capacity,
                            long dfsUsed,
                            long remaining,
                            long blockPoolUsed)

addBlock

public boolean addBlock(org.apache.hadoop.hdfs.server.blockmanagement.BlockInfo b)

getDatanodeDescriptor

public org.apache.hadoop.hdfs.server.blockmanagement.DatanodeDescriptor getDatanodeDescriptor()

incrementBlocksScheduled

public static void incrementBlocksScheduled(DatanodeStorageInfo... storages)

Increment the number of blocks scheduled for each given storage

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object