static void RunRoundRobinLoadBalance()
{
var roundRobin = new RoundRobinLoadBalance();
var people = new List <int> {
210, 350, 440
}.Select(num => new Person {
Id = num, Weight = num
}).ToList();
var totalWeight = people.Sum(person => person.Weight);
var calculator = new PersonWeightCalculator();
var limitedWeight = 10;
var limitCalculator = new PersonLimitedWeightCalculator(limitedWeight); // 限制最大权重和的权重计算器（当遇到超大的权重和时，对于 RoundRobinLoadBalance 该算法可以提升加权负载的性能，减少内存占用，但命中率可能会产生小幅度的偏差）
var monitor = people.ToDictionary(person => person, person => 0);
Console.WriteLine("--- Run round robin load balance with weight[{0}] calculator ---", totalWeight);
for (int i = 1; i <= 1000; i++)
{
var person = roundRobin.Select(calculator, people, "normal");
monitor[person]++;
}
DisplayLoadBalanceMonitor(monitor);
monitor = people.ToDictionary(person => person, person => 0);
Console.WriteLine("--- Run round robin load balance with limited weight[{0}] calculator ---", limitedWeight);
for (int i = 1; i <= 1000; i++)
{
var person = roundRobin.Select(limitCalculator, people, "limited");
monitor[person]++;
}
DisplayLoadBalanceMonitor(monitor);
}
public Calculate()
{
var weightCalculator = new ServiceMetadataWeightCalculator(30);
var loadBalance = new RoundRobinLoadBalance();
var registery = new ZooKeeperRegistery(ZooKeeperClient.Instance);
_unaryInvoker = new UnaryServiceInvoker(registery, "/dotdubbo/unary/providers", loadBalance, weightCalculator);
}
static void Main(string[] args)
{
var weightCalculator = new ServiceMetadataWeightCalculator(30);
var loadBalance = new RoundRobinLoadBalance();
// 创建注册中心
var registery = new ZooKeeperRegistery(ZooKeeperClient.Instance);
// 启动并注册 UnaryService
Enumerable.Range(UNARY_SERVICE_MIN_PORT, UNARY_SERVICE_MAX_COUNT)
.Select(port => HostUnaryService(port))
.ForEach(meta => registery.Register(meta, true), 1000);
// 调用 UnaryService
var unaryInvoker = new UnaryServiceInvoker(registery, UNARY_SERVICE_PROVIDER_PATH, loadBalance, weightCalculator);
for (int i = -1; i >= -10; i--)
{
Console.WriteLine("unaryInvoker.Negate({0}) = {1}", i, unaryInvoker.Negate(i));
}
Console.WriteLine("------------------");
// 启动并注册 CalcService
Enumerable.Range(CALC_SERVICE_MIN_PORT, CALC_SERVICE_MAX_COUNT)
.Select(port => HostCalcService(port))
.ForEach(meta => registery.Register(meta, true), 1000);
// 调用 CalcService
var calcInvoker = new CalculateServiceInvoker(registery, CALC_SERVICE_PROVIDER_PATH, loadBalance, weightCalculator);
for (int i = 1; i <= 10; i++)
{
calcInvoker.Multicast(i);
Console.WriteLine("{0} + {1} = {2}", i, i + 1, calcInvoker.Add(i, i + 1));
Console.WriteLine("-------------------");
System.Threading.Thread.Sleep(1000);
}
Console.Read();
// 断开与 ZooKeeper 服务器的连接
ZooKeeperClient.Instance.Dispose();
}
