Pick one from service providers and fire the invocation.
org.apache.dubbo.rpc.cluster.LoadBalance
org.apache.dubbo.rpc.cluster.loadbalance.RandomLoadBalance
org.apache.dubbo.rpc.cluster.loadbalance.RoundRobinLoadBalance
org.apache.dubbo.rpc.cluster.loadbalance.LeastActiveLoadBalance
org.apache.dubbo.rpc.cluster.loadbalance.ConsistentHashLoadBalance
org.apache.dubbo.rpc.cluster.loadbalance.ShortestResponseLoadBalance
Directory layout:
XxxLoadBalance.java:
META-INF/dubbo/org.apache.dubbo.rpc.cluster.LoadBalance: