DataNodeHeartbeatCache (IoTDB: Core: ConfigNode 1.3.5 API)

java.lang.Object

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

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

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

public class DataNodeHeartbeatCache extends BaseNodeCache

Heartbeat cache for cluster DataNodes.

Field Summary

Fields inherited from class org.apache.iotdb.confignode.manager.load.cache.node.BaseNodeCache
nodeId

Fields inherited from class org.apache.iotdb.confignode.manager.load.cache.AbstractLoadCache
currentStatistics, failureDetector, slidingWindow
Constructor Summary

Constructors

Constructor

Description

DataNodeHeartbeatCache(int dataNodeId)

Constructor for create DataNodeHeartbeatCache with default NodeStatistics.
Method Summary

Modifier and Type

Method

Description

double

getFreeDiskSpace()

void

updateCurrentStatistics(boolean forceUpdate)

Update currentStatistics based on the latest heartbeat sample that cached in the slidingWindow.

Methods inherited from class org.apache.iotdb.confignode.manager.load.cache.node.BaseNodeCache
getLoadScore, getNodeId, getNodeStatus, getNodeStatusWithReason

Methods inherited from class org.apache.iotdb.confignode.manager.load.cache.AbstractLoadCache
cacheHeartbeatSample, getCurrentStatistics, getLastSample

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

Constructor Details
- DataNodeHeartbeatCache
  
  public DataNodeHeartbeatCache(int dataNodeId)
  
  Constructor for create DataNodeHeartbeatCache with default NodeStatistics.
Method Details
- updateCurrentStatistics
  
  public void updateCurrentStatistics(boolean forceUpdate)
  
  Description copied from class: AbstractLoadCache
  
  Update currentStatistics based on the latest heartbeat sample that cached in the slidingWindow.
  
  Specified by:
  
  updateCurrentStatistics in class AbstractLoadCache
- getFreeDiskSpace
  
  public double getFreeDiskSpace()