com.bfd.harpc.loadbalance

类 RoundRobinStrategy<S>

java.lang.Object

com.bfd.harpc.loadbalance.RoundRobinStrategy<S>

所有已实现的接口:

LoadBalancingStrategy<S>

public class RoundRobinStrategy<S>
extends Object

A load balancer that distributes load by randomizing the list of available backends, and then rotating through them evenly.

构造器概要

构造器

构造器和说明
RoundRobinStrategy()

方法概要

方法

限定符和类型	方法和说明
void	addConnectResult(K backendKey, RequestTracker.RequestResult result, long connectTimeNanos) Offers information about a connection result.
S	nextBackend() Gets the next backend that a request should be sent to.
void	offerBackends(Set<K> offeredBackends, Closure<Collection<K>> onBackendsChosen) Offers a set of backends that the load balancer should choose from to distribute load amongst.
protected Collection<S>	onBackendsOffered(Set<S> targets)

从类继承的方法 java.lang.Object

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

构造器详细资料

RoundRobinStrategy

public RoundRobinStrategy()

方法详细资料

onBackendsOffered

protected Collection<S> onBackendsOffered(Set<S> targets)

nextBackend

public S nextBackend()
              throws ResourceExhaustedException

从接口复制的说明: LoadBalancingStrategy

Gets the next backend that a request should be sent to.

返回:

Next backend to send a request.

抛出:

ResourceExhaustedException

offerBackends

public final void offerBackends(Set<K> offeredBackends,
                 Closure<Collection<K>> onBackendsChosen)

从接口复制的说明: LoadBalancingStrategy

Offers a set of backends that the load balancer should choose from to distribute load amongst.

指定者:

offerBackends 在接口中 LoadBalancingStrategy<K>

参数:

offeredBackends - Backends to choose from.

onBackendsChosen - A callback that should be notified when the offered backends have been (re)chosen from.

addConnectResult

public void addConnectResult(K backendKey,
                    RequestTracker.RequestResult result,
                    long connectTimeNanos)

从接口复制的说明: LoadBalancingStrategy

Offers information about a connection result.

指定者:

addConnectResult 在接口中 LoadBalancingStrategy<K>

参数:

backendKey - Backend key.

result - Connection result.

connectTimeNanos - Time spent waiting for connection to be established.