StorageClusterStatusModel (Apache HBase 1.2.12 API)

java.lang.Object
- org.apache.hadoop.hbase.rest.model.StorageClusterStatusModel

All Implemented Interfaces:: Serializable, ProtobufMessageHandler

@InterfaceAudience.Private
public class StorageClusterStatusModel
extends Object
implements Serializable, ProtobufMessageHandler

Representation of the status of a storage cluster:

regions: the total number of regions served by the cluster
requests: the total number of requests per second handled by the cluster in the last reporting interval
averageLoad: the average load of the region servers in the cluster
liveNodes: detailed status of the live region servers
deadNodes: the names of region servers declared dead

 <complexType name="StorageClusterStatus">
   <sequence>
     <element name="liveNode" type="tns:Node"
       maxOccurs="unbounded" minOccurs="0">
     </element>
     <element name="deadNode" type="string" maxOccurs="unbounded"
       minOccurs="0">
     </element>
   </sequence>
   <attribute name="regions" type="int"></attribute>
   <attribute name="requests" type="int"></attribute>
   <attribute name="averageLoad" type="float"></attribute>
 </complexType>

 <complexType name="Node">
   <sequence>
     <element name="region" type="tns:Region"
       maxOccurs="unbounded" minOccurs="0"></element>
   </sequence>
   <attribute name="name" type="string"></attribute>
   <attribute name="startCode" type="int"></attribute>
   <attribute name="requests" type="int"></attribute>
   <attribute name="heapSizeMB" type="int"></attribute>
   <attribute name="maxHeapSizeMB" type="int"></attribute>
 </complexType>

 <complexType name="Region">
   <attribute name="name" type="base64Binary"></attribute>
   <attribute name="stores" type="int"></attribute>
   <attribute name="storefiles" type="int"></attribute>
   <attribute name="storefileSizeMB" type="int"></attribute>
   <attribute name="memstoreSizeMB" type="int"></attribute>
   <attribute name="storefileIndexSizeMB" type="int"></attribute>
   <attribute name="readRequestsCount" type="int"></attribute>
   <attribute name="writeRequestsCount" type="int"></attribute>
   <attribute name="rootIndexSizeKB" type="int"></attribute>
   <attribute name="totalStaticIndexSizeKB" type="int"></attribute>
   <attribute name="totalStaticBloomSizeKB" type="int"></attribute>
   <attribute name="totalCompactingKVs" type="int"></attribute>
   <attribute name="currentCompactedKVs" type="int"></attribute>
 </complexType>

See Also:: Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class StorageClusterStatusModel.Node
Represents a region server.

Nested Classes
Modifier and Type	Class and Description
`static class`	`StorageClusterStatusModel.Node` Represents a region server.

Field Summary

Fields
Modifier and Type	Field and Description
`private double`	`averageLoad`
`private List<String>`	`deadNodes`
`private List<StorageClusterStatusModel.Node>`	`liveNodes`
`private int`	`regions`
`private long`	`requests`
`private static long`	`serialVersionUID`

Constructor Summary

Constructors
Constructor and Description

StorageClusterStatusModel()
Default constructor

Constructors
Constructor and Description
`StorageClusterStatusModel()` Default constructor

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addDeadNode(String node)` Add a dead node to the cluster representation.
`StorageClusterStatusModel.Node`	`addLiveNode(String name, long startCode, int heapSizeMB, int maxHeapSizeMB)` Add a live node to the cluster representation.
`byte[]`	`createProtobufOutput()`
`double`	`getAverageLoad()`
`String`	`getDeadNode(int index)`
`List<String>`	`getDeadNodes()`
`StorageClusterStatusModel.Node`	`getLiveNode(int index)`
`List<StorageClusterStatusModel.Node>`	`getLiveNodes()`
`ProtobufMessageHandler`	`getObjectFromMessage(byte[] message)` Initialize the model from a protobuf representation.
`int`	`getRegions()`
`long`	`getRequests()`
`void`	`setAverageLoad(double averageLoad)`
`void`	`setDeadNodes(List<String> nodes)`
`void`	`setLiveNodes(List<StorageClusterStatusModel.Node> nodes)`
`void`	`setRegions(int regions)`
`void`	`setRequests(int requests)`
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - serialVersionUID
```
private static final long serialVersionUID
```
    See Also:
    Constant Field Values
  - liveNodes
```
private List<StorageClusterStatusModel.Node> liveNodes
```
  - deadNodes
```
private List<String> deadNodes
```
  - regions
```
private int regions
```
  - requests
```
private long requests
```
  - averageLoad
```
private double averageLoad
```
- Constructor Detail
  - StorageClusterStatusModel
```
public StorageClusterStatusModel()
```
    Default constructor
- Method Detail
  - addLiveNode
```
public StorageClusterStatusModel.Node addLiveNode(String name,
                                         long startCode,
                                         int heapSizeMB,
                                         int maxHeapSizeMB)
```
    Add a live node to the cluster representation.
    
    Parameters:
    name - the region server name
    startCode - the region server's start code
    heapSizeMB - the current heap size, in MB
    maxHeapSizeMB - the maximum heap size, in MB
  - getLiveNode
```
public StorageClusterStatusModel.Node getLiveNode(int index)
```
    Parameters:
    index - the index
    
    Returns:
    the region server model
  - addDeadNode
```
public void addDeadNode(String node)
```
    Add a dead node to the cluster representation.
    
    Parameters:
    node - the dead region server's name
  - getDeadNode
```
public String getDeadNode(int index)
```
    Parameters:
    index - the index
    
    Returns:
    the dead region server's name
  - getLiveNodes
```
public List<StorageClusterStatusModel.Node> getLiveNodes()
```
    Returns:
    the list of live nodes
  - getDeadNodes
```
public List<String> getDeadNodes()
```
    Returns:
    the list of dead nodes
  - getRegions
```
public int getRegions()
```
    Returns:
    the total number of regions served by the cluster
  - getRequests
```
public long getRequests()
```
    Returns:
    the total number of requests per second handled by the cluster in the last reporting interval
  - getAverageLoad
```
public double getAverageLoad()
```
    Returns:
    the average load of the region servers in the cluster
  - setLiveNodes
```
public void setLiveNodes(List<StorageClusterStatusModel.Node> nodes)
```
    Parameters:
    nodes - the list of live node models
  - setDeadNodes
```
public void setDeadNodes(List<String> nodes)
```
    Parameters:
    nodes - the list of dead node names
  - setRegions
```
public void setRegions(int regions)
```
    Parameters:
    regions - the total number of regions served by the cluster
  - setRequests
```
public void setRequests(int requests)
```
    Parameters:
    requests - the total number of requests per second handled by the cluster
  - setAverageLoad
```
public void setAverageLoad(double averageLoad)
```
    Parameters:
    averageLoad - the average load of region servers in the cluster
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - createProtobufOutput
```
public byte[] createProtobufOutput()
```
    Specified by:
    
    createProtobufOutput in interface ProtobufMessageHandler
    
    Returns:
    the protobuf represention of the model
  - getObjectFromMessage
```
public ProtobufMessageHandler getObjectFromMessage(byte[] message)
                                            throws IOException
```
    Description copied from interface: ProtobufMessageHandler
    
    Initialize the model from a protobuf representation.
    
    Specified by:
    
    getObjectFromMessage in interface ProtobufMessageHandler
    
    Parameters:
    message - the raw bytes of the protobuf message
    
    Returns:
    reference to self for convenience
    
    Throws:
    
    IOException

Class StorageClusterStatusModel

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

serialVersionUID

liveNodes

deadNodes

regions

requests

averageLoad

Constructor Detail

StorageClusterStatusModel

Method Detail

addLiveNode

getLiveNode

addDeadNode

getDeadNode

getLiveNodes

getDeadNodes

getRegions

getRequests

getAverageLoad

setLiveNodes

setDeadNodes

setRegions

setRequests

setAverageLoad

toString

createProtobufOutput

getObjectFromMessage