org.apache.flink.runtime.heartbeat

类 HeartbeatManagerImpl<I,O>

java.lang.Object

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

类型参数:

I - Type of the incoming heartbeat payload

O - Type of the outgoing heartbeat payload

所有已实现的接口:

HeartbeatManager<I,O>, HeartbeatTarget<I>

直接已知子类:

HeartbeatManagerSenderImpl

@ThreadSafe
public class HeartbeatManagerImpl<I,O>
extends Object
implements HeartbeatManager<I,O>

Heartbeat manager implementation. The heartbeat manager maintains a map of heartbeat monitors and resource IDs. Each monitor will be updated when a new heartbeat of the associated machine has been received. If the monitor detects that a heartbeat has timed out, it will notify the HeartbeatListener about it. A heartbeat times out iff no heartbeat signal has been received within a given timeout interval.

字段概要

字段

限定符和类型	字段和说明
protected org.slf4j.Logger	log
protected boolean	stopped Running state of the heartbeat manager.

构造器概要

构造器

构造器和说明
HeartbeatManagerImpl(long heartbeatTimeoutIntervalMs, int failedRpcRequestsUntilUnreachable, ResourceID ownResourceID, HeartbeatListener<I,O> heartbeatListener, org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor, org.slf4j.Logger log)
HeartbeatManagerImpl(long heartbeatTimeoutIntervalMs, int failedRpcRequestsUntilUnreachable, ResourceID ownResourceID, HeartbeatListener<I,O> heartbeatListener, org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor, org.slf4j.Logger log, HeartbeatMonitor.Factory<O> heartbeatMonitorFactory)

方法概要

限定符和类型	方法和说明
long	getLastHeartbeatFrom(ResourceID resourceId) Returns the last received heartbeat from the given target.
protected java.util.function.BiConsumer<Void,Throwable>	handleHeartbeatRpc(ResourceID heartbeatTarget)
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

字段详细资料

log

protected final org.slf4j.Logger log

stopped

protected volatile boolean stopped

Running state of the heartbeat manager.

构造器详细资料

HeartbeatManagerImpl

public HeartbeatManagerImpl(long heartbeatTimeoutIntervalMs,
                            int failedRpcRequestsUntilUnreachable,
                            ResourceID ownResourceID,
                            HeartbeatListener<I,O> heartbeatListener,
                            org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor,
                            org.slf4j.Logger log)

HeartbeatManagerImpl

public HeartbeatManagerImpl(long heartbeatTimeoutIntervalMs,
                            int failedRpcRequestsUntilUnreachable,
                            ResourceID ownResourceID,
                            HeartbeatListener<I,O> heartbeatListener,
                            org.apache.flink.util.concurrent.ScheduledExecutor mainThreadExecutor,
                            org.slf4j.Logger log,
                            HeartbeatMonitor.Factory<O> heartbeatMonitorFactory)

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

handleHeartbeatRpc

protected java.util.function.BiConsumer<Void,Throwable> handleHeartbeatRpc(ResourceID heartbeatTarget)