Package org.apache.nifi.cluster.lifecycle

Class ClusterDecommissionTask

java.lang.Object

org.apache.nifi.cluster.lifecycle.ClusterDecommissionTask

All Implemented Interfaces:

DecommissionTask

public class ClusterDecommissionTask
extends Object
implements DecommissionTask

Field Summary

Fields

Modifier and Type	Field	Description
private final ClusterCoordinator	clusterCoordinator
private static final int	delaySeconds
private final FlowController	flowController
private NodeIdentifier	localNodeIdentifier
private static final org.slf4j.Logger	logger

Constructor Summary

Constructors

Constructor	Description
ClusterDecommissionTask(ClusterCoordinator clusterCoordinator, FlowController flowController)

Method Summary

Modifier and Type	Method	Description
void	decommission()
private void	disconnectNode()
private void	offloadNode()
private void	removeFromCluster()
private void	waitForDisconnection()
private void	waitForOffloadToFinish()
private void	waitForRemoval()
private void	waitForState(Set<NodeConnectionState> acceptableStates)

Methods inherited from class java.lang.Object

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

Field Details

logger

private static final org.slf4j.Logger logger

delaySeconds

private static final int delaySeconds

See Also:

• Constant Field Values

clusterCoordinator

private final ClusterCoordinator clusterCoordinator

flowController

private final FlowController flowController

localNodeIdentifier

private NodeIdentifier localNodeIdentifier

Constructor Details

ClusterDecommissionTask

public ClusterDecommissionTask(ClusterCoordinator clusterCoordinator,
 FlowController flowController)

Method Details

decommission

public void decommission()
                  throws InterruptedException

Specified by:

decommission in interface DecommissionTask

Throws:

InterruptedException

disconnectNode

private void disconnectNode()
                     throws InterruptedException

Throws:

InterruptedException

waitForDisconnection

private void waitForDisconnection()
                           throws InterruptedException

Throws:

InterruptedException

offloadNode

private void offloadNode()
                  throws InterruptedException

Throws:

InterruptedException

waitForState

private void waitForState(Set<NodeConnectionState> acceptableStates)
                   throws InterruptedException

Throws:

InterruptedException

waitForOffloadToFinish

private void waitForOffloadToFinish()
                             throws InterruptedException

Throws:

InterruptedException

removeFromCluster

private void removeFromCluster()

waitForRemoval

private void waitForRemoval()
                     throws InterruptedException

Throws:

InterruptedException