Exemple #1
0
 static Tracer()
 {
     TracingProcessManager.Initialize();
     // create the default global Tracer
     Instance = new Tracer();
     RegisterGlobalTracer(Instance);
 }
Exemple #2
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        static Tracer()
        {
            TracingProcessManager.Initialize();

            if (!TracerSettings.DisableSharedInstance)
            {
                // create the default global Tracer
                Instance = new Tracer();
            }
        }
Exemple #3
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        private void RunShutdownTasks()
        {
            try
            {
                _agentWriter.FlushAndCloseAsync().Wait();
            }
            catch (Exception ex)
            {
                DatadogLogging.RegisterStartupLog(log => log.Error(ex, "Error flushing traces on shutdown."));
            }

            TracingProcessManager.StopProcesses();
        }
Exemple #4
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        private void RunShutdownTasks()
        {
            try
            {
                _agentWriter.FlushAndCloseAsync().Wait();
            }
            catch (Exception ex)
            {
                Log.Error(ex, "Error flushing traces on shutdown.");
            }

            TracingProcessManager.StopProcesses();
        }
Exemple #5
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        internal Tracer(TracerSettings settings, IAgentWriter agentWriter, ISampler sampler, IScopeManager scopeManager, IStatsd statsd)
        {
            // update the count of Tracer instances
            Interlocked.Increment(ref _liveTracerCount);

            Settings = settings ?? TracerSettings.FromDefaultSources();

            // if not configured, try to determine an appropriate service name
            DefaultServiceName = Settings.ServiceName ??
                                 GetApplicationName() ??
                                 UnknownServiceName;

            // only set DogStatsdClient if tracer metrics are enabled
            if (Settings.TracerMetricsEnabled)
            {
                // Run this first in case the port override is ready
                TracingProcessManager.SubscribeToDogStatsDPortOverride(
                    port =>
                {
                    Log.Debug("Attempting to override dogstatsd port with {0}", port);
                    Statsd = CreateDogStatsdClient(Settings, DefaultServiceName, port);
                });

                Statsd = statsd ?? CreateDogStatsdClient(Settings, DefaultServiceName, Settings.DogStatsdPort);
            }

            // Run this first in case the port override is ready
            TracingProcessManager.SubscribeToTraceAgentPortOverride(
                port =>
            {
                Log.Debug("Attempting to override trace agent port with {0}", port);
                var builder = new UriBuilder(Settings.AgentUri)
                {
                    Port = port
                };
                var baseEndpoint         = builder.Uri;
                IApi overridingApiClient = new Api(baseEndpoint, delegatingHandler: null, Statsd);
                if (_agentWriter == null)
                {
                    _agentWriter = _agentWriter ?? new AgentWriter(overridingApiClient, Statsd);
                }
                else
                {
                    _agentWriter.OverrideApi(overridingApiClient);
                }
            });

            // fall back to default implementations of each dependency if not provided
            _agentWriter = agentWriter ?? new AgentWriter(new Api(Settings.AgentUri, delegatingHandler: null, Statsd), Statsd);

            _scopeManager = scopeManager ?? new AsyncLocalScopeManager();
            Sampler       = sampler ?? new RuleBasedSampler(new RateLimiter(Settings.MaxTracesSubmittedPerSecond));

            if (!string.IsNullOrWhiteSpace(Settings.CustomSamplingRules))
            {
                // User has opted in, ensure rate limiter is used
                RuleBasedSampler.OptInTracingWithoutLimits();

                foreach (var rule in CustomSamplingRule.BuildFromConfigurationString(Settings.CustomSamplingRules))
                {
                    Sampler.RegisterRule(rule);
                }
            }

            if (Settings.GlobalSamplingRate != null)
            {
                var globalRate = (float)Settings.GlobalSamplingRate;

                if (globalRate < 0f || globalRate > 1f)
                {
                    Log.Warning("{0} configuration of {1} is out of range", ConfigurationKeys.GlobalSamplingRate, Settings.GlobalSamplingRate);
                }
                else
                {
                    Sampler.RegisterRule(new GlobalSamplingRule(globalRate));
                }
            }

            // Register callbacks to make sure we flush the traces before exiting
            AppDomain.CurrentDomain.ProcessExit        += CurrentDomain_ProcessExit;
            AppDomain.CurrentDomain.DomainUnload       += CurrentDomain_DomainUnload;
            AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
            Console.CancelKeyPress += Console_CancelKeyPress;

            // start the heartbeat loop
            _heartbeatTimer = new Timer(HeartbeatCallback, state: null, dueTime: TimeSpan.Zero, period: TimeSpan.FromMinutes(1));

            // If configured, add/remove the correlation identifiers into the
            // LibLog logging context when a scope is activated/closed
            if (Settings.LogsInjectionEnabled)
            {
                InitializeLibLogScopeEventSubscriber(_scopeManager, DefaultServiceName, Settings.ServiceVersion, Settings.Environment);
            }
        }
Exemple #6
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 static Tracer()
 {
     TracingProcessManager.Initialize();
 }
Exemple #7
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        internal Tracer(TracerSettings settings, IAgentWriter agentWriter, ISampler sampler, IScopeManager scopeManager, IDogStatsd statsd)
        {
            // update the count of Tracer instances
            Interlocked.Increment(ref _liveTracerCount);

            Settings = settings ?? TracerSettings.FromDefaultSources();

            // if not configured, try to determine an appropriate service name
            DefaultServiceName = Settings.ServiceName ??
                                 GetApplicationName() ??
                                 UnknownServiceName;

            // only set DogStatsdClient if tracer metrics are enabled
            if (Settings.TracerMetricsEnabled)
            {
                // Run this first in case the port override is ready
                TracingProcessManager.SubscribeToDogStatsDPortOverride(
                    port =>
                {
                    Log.Debug("Attempting to override dogstatsd port with {0}", port);
                    Statsd = CreateDogStatsdClient(Settings, DefaultServiceName, port);
                });

                Statsd = statsd ?? CreateDogStatsdClient(Settings, DefaultServiceName, Settings.DogStatsdPort);
            }

            // Run this first in case the port override is ready
            TracingProcessManager.SubscribeToTraceAgentPortOverride(
                port =>
            {
                Log.Debug("Attempting to override trace agent port with {0}", port);
                var builder = new UriBuilder(Settings.AgentUri)
                {
                    Port = port
                };
                var baseEndpoint = builder.Uri;

                if (_agentWriter == null)
                {
                    IApi overridingApiClient = new Api(baseEndpoint, apiRequestFactory: null, Statsd);
                    _agentWriter             = _agentWriter ?? new AgentWriter(overridingApiClient, Statsd, queueSize: Settings.TraceQueueSize);
                }
                else
                {
                    _agentWriter.SetApiBaseEndpoint(baseEndpoint);
                }
            });

            // fall back to default implementations of each dependency if not provided
            _agentWriter = agentWriter ?? new AgentWriter(new Api(Settings.AgentUri, apiRequestFactory: null, Statsd), Statsd, queueSize: Settings.TraceQueueSize);

            _scopeManager = scopeManager ?? new AsyncLocalScopeManager();
            Sampler       = sampler ?? new RuleBasedSampler(new RateLimiter(Settings.MaxTracesSubmittedPerSecond));

            if (!string.IsNullOrWhiteSpace(Settings.CustomSamplingRules))
            {
                foreach (var rule in CustomSamplingRule.BuildFromConfigurationString(Settings.CustomSamplingRules))
                {
                    Sampler.RegisterRule(rule);
                }
            }

            if (Settings.GlobalSamplingRate != null)
            {
                var globalRate = (float)Settings.GlobalSamplingRate;

                if (globalRate < 0f || globalRate > 1f)
                {
                    Log.Warning("{0} configuration of {1} is out of range", ConfigurationKeys.GlobalSamplingRate, Settings.GlobalSamplingRate);
                }
                else
                {
                    Sampler.RegisterRule(new GlobalSamplingRule(globalRate));
                }
            }

            // Register callbacks to make sure we flush the traces before exiting
            AppDomain.CurrentDomain.ProcessExit  += CurrentDomain_ProcessExit;
            AppDomain.CurrentDomain.DomainUnload += CurrentDomain_DomainUnload;

            try
            {
                // Registering for the AppDomain.UnhandledException event cannot be called by a security transparent method
                // This will only happen if the Tracer is not run full-trust
                AppDomain.CurrentDomain.UnhandledException += CurrentDomain_UnhandledException;
            }
            catch (Exception ex)
            {
                Log.Warning(ex, "Unable to register a callback to the AppDomain.UnhandledException event.");
            }

            try
            {
                // Registering for the cancel key press event requires the System.Security.Permissions.UIPermission
                Console.CancelKeyPress += Console_CancelKeyPress;
            }
            catch (Exception ex)
            {
                Log.Warning(ex, "Unable to register a callback to the Console.CancelKeyPress event.");
            }

            // start the heartbeat loop
            _heartbeatTimer = new Timer(HeartbeatCallback, state: null, dueTime: TimeSpan.Zero, period: TimeSpan.FromMinutes(1));

            // If configured, add/remove the correlation identifiers into the
            // LibLog logging context when a scope is activated/closed
            if (Settings.LogsInjectionEnabled)
            {
                InitializeLibLogScopeEventSubscriber(_scopeManager, DefaultServiceName, Settings.ServiceVersion, Settings.Environment);
            }

            if (Interlocked.Exchange(ref _firstInitialization, 0) == 1)
            {
                if (Settings.StartupDiagnosticLogEnabled)
                {
                    _ = WriteDiagnosticLog();
                }

                if (Settings.RuntimeMetricsEnabled)
                {
                    _runtimeMetricsWriter = new RuntimeMetricsWriter(Statsd ?? CreateDogStatsdClient(Settings, DefaultServiceName, Settings.DogStatsdPort), 10000);
                }
            }
        }
Exemple #8
0
 static Tracer()
 {
     TracingProcessManager.StartProcesses();
     // create the default global Tracer
     Instance = new Tracer();
 }