private void ConnectPerformanceTest(ConfigurationSection config, CancellationToken cancellationToken)
{
try
{
var instrumentation = new ConnectPerformanceInstrumentation(this.MetricsFactory);
var random = new Random();
string connectionString = config.GetStringValue("TargetConnectionString");
connectionString = Helpers.GetServerAddressIfNotProvided(connectionString);
IPEndPoint[] endpoints = SecureTransport.ParseConnectionString(connectionString);
string testPath = config.GetStringValue("TestPath");
int numConnections = config.GetIntValue("NumberOfConnections");
int maxConcurrentRequests = config.GetIntValue("MaxConcurrentRequests");
int minConnectionLifetimeSeconds = config.GetIntValue("MinConnectionLifetimeSeconds");
int maxConnectionLifetimeSeconds = config.GetIntValue("MaxConnectionLifetimeSeconds");
Func <IRingMasterRequestHandler> createConnection = () =>
{
var connectionConfiguration = new SecureTransport.Configuration
{
UseSecureConnection = false,
CommunicationProtocolVersion = RingMasterCommunicationProtocol.MaximumSupportedVersion,
MaxConnectionLifespan = TimeSpan.FromSeconds(random.Next(minConnectionLifetimeSeconds, maxConnectionLifetimeSeconds))
};
var protocol = new RingMasterCommunicationProtocol();
var transport = new SecureTransport(connectionConfiguration, instrumentation, cancellationToken);
var client = new RingMasterClient(protocol, transport);
transport.StartClient(endpoints);
ConnectionStressServiceEventSource.Log.CreateConnection(
connectionConfiguration.UseSecureConnection,
connectionConfiguration.CommunicationProtocolVersion,
(long)connectionConfiguration.MaxConnectionLifespan.TotalSeconds);
client.Exists("/", watcher: null).Wait();
return((IRingMasterRequestHandler)client);
};
using (var connectPerformanceTest = new ConnectPerformance(instrumentation, maxConcurrentRequests, cancellationToken))
{
ConnectionStressServiceEventSource.Log.ConnectPerformanceTestStarted(testPath, numConnections, minConnectionLifetimeSeconds, maxConnectionLifetimeSeconds);
connectPerformanceTest.EstablishConnections(createConnection, numConnections);
connectPerformanceTest.QueueRequests(testPath);
}
ConnectionStressServiceEventSource.Log.ConnectPerformanceTestCompleted();
}
catch (Exception ex)
{
ConnectionStressServiceEventSource.Log.ConnectPerformanceTestFailed(ex.ToString());
}
}
private void ConnectPerformanceTest(SecureTransport.Configuration configuration, IPEndPoint[] endpoints, int numConnections)
{
var instrumentation = new ConnectPerformanceInstrumentation();
var random = new Random();
int minConnectionLifetimeSeconds = int.Parse(appSettings["ConnectPerformance.MinConnectionLifetimeSeconds"]);
int maxConnectionLifetimeSeconds = int.Parse(appSettings["ConnectPerformance.MaxConnectionLifetimeSeconds"]);
Func <IRingMasterRequestHandler> createConnection = () =>
{
var connectionConfiguration = new SecureTransport.Configuration
{
UseSecureConnection = configuration.UseSecureConnection,
ClientCertificates = configuration.ClientCertificates,
ServerCertificates = configuration.ServerCertificates,
CommunicationProtocolVersion = configuration.CommunicationProtocolVersion,
MaxConnectionLifespan = TimeSpan.FromSeconds(random.Next(minConnectionLifetimeSeconds, maxConnectionLifetimeSeconds)),
};
var protocol = new RingMasterCommunicationProtocol();
var transport = new SecureTransport(connectionConfiguration, instrumentation, CancellationToken.None);
var client = new RingMasterClient(protocol, transport);
transport.StartClient(endpoints);
client.Exists("/", watcher: null).Wait();
return((IRingMasterRequestHandler)client);
};
using (var connectPerformanceTest = new ConnectPerformance(instrumentation, this.MaxConcurrency, CancellationToken.None))
{
Trace.TraceInformation($"Connect performance test numConnections={numConnections}, path={this.TestPath}, minConnectionLifetimeSeconds={minConnectionLifetimeSeconds}, maxConnectionLifetimeSeconds={maxConnectionLifetimeSeconds}");
connectPerformanceTest.EstablishConnections(createConnection, numConnections);
var task = Task.Run(() => connectPerformanceTest.QueueRequests(this.TestPath));
long lastSuccessCount = 0;
var timer = Stopwatch.StartNew();
while (!task.Wait(5000))
{
timer.Stop();
long rate = (long)((instrumentation.Success - lastSuccessCount) * 1000) / timer.ElapsedMilliseconds;
Trace.TraceInformation($"Connections created={instrumentation.ConnectionCreatedCount}, closed={instrumentation.ConnectionClosedCount}, requestSuccess={instrumentation.Success}, requestFailure={instrumentation.Failure}, rate={rate}");
timer.Restart();
lastSuccessCount = instrumentation.Success;
}
}
}
