Package org.apache.iotdb.confignode.manager.load.cache.node

Class BaseNodeCache

java.lang.Object

org.apache.iotdb.confignode.manager.load.cache.AbstractLoadCache

org.apache.iotdb.confignode.manager.load.cache.node.BaseNodeCache

Direct Known Subclasses:

AINodeHeartbeatCache, ConfigNodeHeartbeatCache, DataNodeHeartbeatCache

public abstract class BaseNodeCache
extends AbstractLoadCache

NodeCache caches the NodeHeartbeatSamples of a Node. Update and cache the current statistics of the Node based on the latest NodeHeartbeatSample.

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	nodeId

Fields inherited from class org.apache.iotdb.confignode.manager.load.cache.AbstractLoadCache

currentStatistics, failureDetector, slidingWindow

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BaseNodeCache(int nodeId)	Constructor for NodeCache with default NodeStatistics.

Method Summary

Modifier and Type	Method	Description
long	getLoadScore()	TODO: The loadScore of each Node will be changed to Double
int	getNodeId()
NodeStatus	getNodeStatus()
String	getNodeStatusWithReason()

Methods inherited from class org.apache.iotdb.confignode.manager.load.cache.AbstractLoadCache

cacheHeartbeatSample, getCurrentStatistics, getLastSample, updateCurrentStatistics

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

nodeId

protected final int nodeId

Constructor Details

BaseNodeCache

protected BaseNodeCache(int nodeId)

Constructor for NodeCache with default NodeStatistics.

Method Details

getNodeId

public int getNodeId()

getLoadScore

public long getLoadScore()

TODO: The loadScore of each Node will be changed to Double

Returns:

The latest load score of a node, the higher the score the higher the load

getNodeStatus

public NodeStatus getNodeStatus()

Returns:

The current status of the Node.

getNodeStatusWithReason

public String getNodeStatusWithReason()

Returns:

The reason why lead to current NodeStatus.