org.apache.flink.runtime.heartbeat

类 NoOpHeartbeatManager<I,O>

java.lang.Object

org.apache.flink.runtime.heartbeat.NoOpHeartbeatManager<I,O>

类型参数:

I - ignored

O - ignored

所有已实现的接口:

HeartbeatManager<I,O>, HeartbeatTarget<I>

public class NoOpHeartbeatManager<I,O>
extends Object
implements HeartbeatManager<I,O>

HeartbeatManager implementation which does nothing.

方法概要

限定符和类型	方法和说明
static <A,B> NoOpHeartbeatManager<A,B>	getInstance()
long	getLastHeartbeatFrom(ResourceID resourceId) Returns the last received heartbeat from the given target.
void	monitorTarget(ResourceID resourceID, HeartbeatTarget<O> heartbeatTarget) Start monitoring a HeartbeatTarget.
CompletableFuture<Void>	receiveHeartbeat(ResourceID heartbeatOrigin, I heartbeatPayload) Sends a heartbeat response to the target.
CompletableFuture<Void>	requestHeartbeat(ResourceID requestOrigin, I heartbeatPayload) Requests a heartbeat from the target.
void	stop() Stops the heartbeat manager.
void	unmonitorTarget(ResourceID resourceID) Stops monitoring the heartbeat target with the associated resource ID.

从类继承的方法 java.lang.Object

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

方法详细资料

monitorTarget

public void monitorTarget(ResourceID resourceID,
                          HeartbeatTarget<O> heartbeatTarget)

从接口复制的说明: HeartbeatManager

Start monitoring a HeartbeatTarget. Heartbeat timeouts for this target are reported to the HeartbeatListener associated with this heartbeat manager.

指定者:

monitorTarget 在接口中 HeartbeatManager<I,O>

参数:

resourceID - Resource ID identifying the heartbeat target

heartbeatTarget - Interface to send heartbeat requests and responses to the heartbeat target

unmonitorTarget

public void unmonitorTarget(ResourceID resourceID)

从接口复制的说明: HeartbeatManager

Stops monitoring the heartbeat target with the associated resource ID.

指定者:

unmonitorTarget 在接口中 HeartbeatManager<I,O>

参数:

resourceID - Resource ID of the heartbeat target which shall no longer be monitored

stop

public void stop()

从接口复制的说明: HeartbeatManager

Stops the heartbeat manager.

指定者:

stop 在接口中 HeartbeatManager<I,O>

getLastHeartbeatFrom

public long getLastHeartbeatFrom(ResourceID resourceId)

从接口复制的说明: HeartbeatManager

Returns the last received heartbeat from the given target.

指定者:

getLastHeartbeatFrom 在接口中 HeartbeatManager<I,O>

参数:

resourceId - for which to return the last heartbeat

返回:

Last heartbeat received from the given target or -1 if the target is not being monitored.

receiveHeartbeat

public CompletableFuture<Void> receiveHeartbeat(ResourceID heartbeatOrigin,
                                                I heartbeatPayload)

从接口复制的说明: HeartbeatTarget

Sends a heartbeat response to the target. Each heartbeat response can carry a payload which contains additional information for the heartbeat target.

指定者:

receiveHeartbeat 在接口中 HeartbeatTarget<I>

参数:

heartbeatOrigin - Resource ID identifying the machine for which a heartbeat shall be reported.

heartbeatPayload - Payload of the heartbeat. Null indicates an empty payload.

返回:

Future that is completed exceptionally if the heartbeat response could not be sent to the target

requestHeartbeat

public CompletableFuture<Void> requestHeartbeat(ResourceID requestOrigin,
                                                I heartbeatPayload)

从接口复制的说明: HeartbeatTarget

Requests a heartbeat from the target. Each heartbeat request can carry a payload which contains additional information for the heartbeat target.

指定者:

requestHeartbeat 在接口中 HeartbeatTarget<I>

参数:

requestOrigin - Resource ID identifying the machine issuing the heartbeat request.

heartbeatPayload - Payload of the heartbeat request. Null indicates an empty payload.

返回:

Future that is completed exceptionally if the heartbeat request could not be sent to the target

getInstance

public static <A,B> NoOpHeartbeatManager<A,B> getInstance()