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java.lang.Objectorg.apache.hadoop.hdfs.protocol.DatanodeID
@InterfaceAudience.Private @InterfaceStability.Evolving public class DatanodeID
DatanodeID is composed of the data node name (hostname:portNumber) and the data storage ID, which it currently represents.
Field Summary | |
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static DatanodeID[] |
EMPTY_ARRAY
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protected int |
infoPort
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int |
ipcPort
|
String |
name
|
String |
storageID
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Constructor Summary | |
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DatanodeID()
Equivalent to DatanodeID(""). |
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DatanodeID(DatanodeID from)
DatanodeID copy constructor |
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DatanodeID(String nodeName)
Equivalent to DatanodeID(nodeName, "", -1, -1). |
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DatanodeID(String nodeName,
String storageID,
int infoPort,
int ipcPort)
Create DatanodeID |
Method Summary | |
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int |
compareTo(DatanodeID that)
Comparable. |
boolean |
equals(Object to)
|
String |
getHost()
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int |
getInfoPort()
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int |
getIpcPort()
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String |
getName()
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int |
getPort()
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String |
getStorageID()
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int |
hashCode()
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void |
readFields(DataInput in)
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void |
setStorageID(String storageID)
sets the data storage ID. |
String |
toString()
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void |
updateRegInfo(DatanodeID nodeReg)
Update fields when a new registration request comes in. |
void |
write(DataOutput out)
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Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final DatanodeID[] EMPTY_ARRAY
public String name
public String storageID
protected int infoPort
public int ipcPort
Constructor Detail |
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public DatanodeID()
public DatanodeID(String nodeName)
public DatanodeID(DatanodeID from)
from
- public DatanodeID(String nodeName, String storageID, int infoPort, int ipcPort)
nodeName
- (hostname:portNumber)storageID
- data storage IDinfoPort
- info server portipcPort
- ipc server portMethod Detail |
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public String getName()
public String getStorageID()
public int getInfoPort()
public int getIpcPort()
public void setStorageID(String storageID)
public String getHost()
public int getPort()
public boolean equals(Object to)
equals
in class Object
public int hashCode()
hashCode
in class Object
public String toString()
toString
in class Object
public void updateRegInfo(DatanodeID nodeReg)
public int compareTo(DatanodeID that)
compareTo
in interface Comparable<DatanodeID>
that
-
public void write(DataOutput out) throws IOException
write
in interface org.apache.hadoop.io.Writable
IOException
public void readFields(DataInput in) throws IOException
readFields
in interface org.apache.hadoop.io.Writable
IOException
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