/// <summary>
/// This is the entry point of the service host process.
/// </summary>
private static void Main()
{
try
{
var timer = Stopwatch.StartNew();
var nodeContext = FabricRuntime.GetNodeContext();
long nodeContextTime = timer.ElapsedMilliseconds;
timer.Restart();
var activationContext = FabricRuntime.GetActivationContext();
long activationContextTime = timer.ElapsedMilliseconds;
timer.Restart();
var logger = LogConfig.CreateLogger(nodeContext, activationContext);
long createLoggerTime = timer.ElapsedMilliseconds;
ServiceRuntime.RegisterServiceAsync("StatefulSvcType",
context => new StatefulSvc(context, logger)).GetAwaiter().GetResult();
Log.Information("Service host process registered service type {ServiceTypeName}. GetNodeContext: {GetNodeContextTimeInMs} ms. GetActivationContext: {GetActivationContextTimeInMs} ms. CreateLogger: {CreateLoggerTimeInMs} ms.",
"StatefulSvcType", nodeContextTime, activationContextTime, createLoggerTime);
// Prevents this host process from terminating so services keeps running.
Thread.Sleep(Timeout.Infinite);
}
catch (Exception e)
{
Log.Error(e, "Service host process initialization failed for service type {ServiceTypeName}.", "StatefulSvcType");
throw;
}
}
public async Task StartAsync(CancellationToken token)
{
var log = LogConfig.CreateLogger();
log.Information($"Starting {GetApplicationName()}");
try
{
ApplicationLicenseManager.AddProcessLicenses(System.Reflection.Assembly.GetExecutingAssembly(), GetUALicensePath());
ApplicationInstance.Default.Start();
log.Information($"License {ApplicationLicenseManager.GetAvailableLicense()} loaded successfully");
}
catch (Exception ex)
{
log.Error(ex, "Failed to load license.");
}
try
{
await StreamToEventHub(token);
}
catch (Exception ex)
{
log.Fatal(ex, "Fatal error");
}
finally
{
LogConfig.EndLogging();
}
}
static async Task MainAsync(string[] args)
{
int taskCount = args.Length > 0 ? int.Parse(args[0]) : 3;
string clientName = args.Length > 1 ? args[1] : "Client";
// Create Elasticsearch logger.
var logger = LogConfig.CreateLogger()
.ForContext(new PropertyEnricher("ClientName", clientName));
// HttpClient to service.
var client = new HttpClient {
BaseAddress = new Uri("http://service-fabric.eastus.cloudapp.azure.com")
};
// Spawn concurrent tasks.
var tasks = Enumerable.Range(0, taskCount).Select(i => Task.Run(async() =>
{
string endpoint = GetEndpoint(i);
while (true)
{
await Task.Delay(TimeSpan.FromMilliseconds(50)).ConfigureAwait(false);
var task = Task.Run(async() =>
{
var timer = Stopwatch.StartNew();
var correlationId = Guid.NewGuid().ToString();
try
{
// GET from service.
var request = new HttpRequestMessage(HttpMethod.Get, endpoint)
.AddCorrelationId(correlationId);
var response = await client.SendAsync(request).ConfigureAwait(false);
if (response.IsSuccessStatusCode)
{
logger.Information("{MethodName} completed with {StatusCode} in {ElapsedTime} ms. {CorrelationId}", endpoint, (int)response.StatusCode, timer.ElapsedMilliseconds, correlationId);
}
else
{
logger.Error("{MethodName} failed with {StatusCode} in {ElapsedTime} ms. {CorrelationId}", endpoint, (int)response.StatusCode, timer.ElapsedMilliseconds, correlationId);
}
}
catch (Exception e)
{
logger.Error(e, "{MethodName} failed in {ElapsedTime} ms. {CorrelationId}", endpoint, timer.ElapsedMilliseconds, correlationId);
}
});
}
}));
await Task.WhenAll(tasks).ConfigureAwait(false);
}
