public void should_serve_from_service_with_least_connections()
{
var serviceName = "products";
var availableServices = new List <Service>
{
new Service(serviceName, new HostAndPort("127.0.0.1", 80), string.Empty, string.Empty, new string[0]),
new Service(serviceName, new HostAndPort("127.0.0.2", 80), string.Empty, string.Empty, new string[0]),
new Service(serviceName, new HostAndPort("127.0.0.3", 80), string.Empty, string.Empty, new string[0])
};
_services = availableServices;
_leastConnection = new LeastConnectionLoadBalancer(() => Task.FromResult(_services), serviceName);
var response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[0].HostAndPort.DownstreamHost);
response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[1].HostAndPort.DownstreamHost);
response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[2].HostAndPort.DownstreamHost);
}
private async Task LeaseDelayAndRelease()
{
var hostAndPort = await _leastConnection.Lease();
await Task.Delay(_random.Next(1, 100));
_leastConnection.Release(hostAndPort.Data);
}
public void should_release_connection()
{
var serviceName = "products";
var availableServices = new List <Service>
{
new Service(serviceName, new HostAndPort("127.0.0.1", 80), string.Empty, string.Empty, new string[0]),
new Service(serviceName, new HostAndPort("127.0.0.2", 80), string.Empty, string.Empty, new string[0]),
};
_services = availableServices;
_leastConnection = new LeastConnectionLoadBalancer(() => Task.FromResult(_services), serviceName);
var response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[0].HostAndPort.DownstreamHost);
response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[1].HostAndPort.DownstreamHost);
response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[0].HostAndPort.DownstreamHost);
response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[1].HostAndPort.DownstreamHost);
//release this so 2 should have 1 connection and we should get 2 back as our next host and port
_leastConnection.Release(availableServices[1].HostAndPort);
response = _leastConnection.Lease().Result;
response.Data.DownstreamHost.ShouldBe(availableServices[1].HostAndPort.DownstreamHost);
}