/// <summary>
/// This is the main entry point for your service replica.
/// This method executes when this replica of your service becomes primary and has write status.
/// </summary>
/// <param name="cancellationToken">Canceled when Service Fabric needs to shut down this service replica.</param>
protected override async Task RunAsync(CancellationToken cancellationToken)
{
FabricClient fc = new FabricClient();
this.telemetryEvents = new TelemetryEvents(fc, ServiceEventSource.Current);
this.rmHelper = new RepairManagerHelper(fc, this.Context);
ICodePackageActivationContext activationContext = this.Context.CodePackageActivationContext;
this.InitializeConfiguration(activationContext.GetConfigurationPackageObject("Config"));
activationContext.ConfigurationPackageModifiedEvent += this.OnConfigurationPackageModified;
await this.RunLoopAsync(cancellationToken);
}
/// <summary>
/// Assign event callbacks, so we can count and report at the end events rejected, dropped, sent and retried.
/// </summary>
private static void InitCallbacks()
{
TelemetryEvents telemetryEvents = LogManager.GetTelemetryEvents(out EVTStatus status);
if (status != EVTStatus.OK)
{
Trace.TraceError($"Aria LogManager.GetTelemetryEvents failed with EVTStatus = {status}");
}
else
{
eventsRejected = 0;
eventsRetry = 0;
eventsDropped = 0;
eventsSent = 0;
telemetryEvents.EventsRetrying += (sender, args) =>
{
Trace.TraceInformation($"Aria retry event: {args.RetryReason}, {args.RetryDetails}");
Interlocked.Add(ref eventsRetry, args.EventsCount);
};
telemetryEvents.EventsDropped += (sender, args) =>
{
Trace.TraceInformation($"Aria event dropped: {args.DroppedReason}, {args.DroppedDetails}");
Interlocked.Add(ref eventsDropped, args.EventsCount);
};
telemetryEvents.EventsSent += (sender, args) =>
{
Interlocked.Add(ref eventsSent, args.EventsCount);
};
telemetryEvents.EventsRejected += (sender, args) =>
{
Trace.TraceInformation($"Aria event rejected: {args.RejectedReason}, {args.RejectedDetails}");
Interlocked.Add(ref eventsRejected, args.EventsCount);
};
}
}
//public void LogString(string stringLog)
//{
// if (null != TestLog)
// {
// TestLog.Log(LogLevel.Info, stringLog);
// }
//}
public void LogTelemetryEvent(TelemetryEvents telemetryEvent)
{
// convert the event to a string
string eventName = telemetryEvent.ToString();
// log it
switch (this.ActiveKey)
{
case TelemetryKeys.Test:
default:
if (null != TestLog)
{
TestLog.Log(LogLevel.Info, eventName);
}
break;
case TelemetryKeys.Prod:
if (null != ProdLog)
{
ProdLog.Log(eventName);
}
break;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ObserverManager"/> class.
/// </summary>
public ObserverManager(
StatelessServiceContext context,
CancellationToken token)
{
this.token = token;
this.cts = new CancellationTokenSource();
this.token.Register(() => { this.ShutdownHandler(this, null); });
FabricClientInstance = new FabricClient();
FabricServiceContext = context;
this.nodeName = FabricServiceContext?.NodeContext.NodeName;
// Observer Logger setup.
string logFolderBasePath = null;
string observerLogPath = GetConfigSettingValue(
ObserverConstants.ObserverLogPath);
if (!string.IsNullOrEmpty(observerLogPath))
{
logFolderBasePath = observerLogPath;
}
else
{
string logFolderBase = $@"{Environment.CurrentDirectory}\observer_logs";
logFolderBasePath = logFolderBase;
}
// this logs metrics from observers, if enabled, and/or sends
// telemetry data to your implemented provider.
this.DataLogger = new DataTableFileLogger();
// this logs error/warning/info messages for ObserverManager.
this.Logger = new Logger("ObserverManager", logFolderBasePath);
this.HealthReporter = new ObserverHealthReporter(this.Logger);
this.SetPropertiesFromConfigurationParameters();
// Populate the Observer list for the sequential run loop.
this.observers = GetObservers();
// FabricObserver Internal Diagnostic Telemetry (Non-PII).
// Internally, TelemetryEvents determines current Cluster Id as a unique identifier for transmitted events.
if (FabricObserverInternalTelemetryEnabled)
{
string codePkgVersion = FabricServiceContext.CodePackageActivationContext.CodePackageVersion;
string serviceManifestVersion = FabricServiceContext.CodePackageActivationContext.GetConfigurationPackageObject("Config").Description.ServiceManifestVersion;
string filepath = Path.Combine(logFolderBasePath, $"fo_telemetry_sent_{codePkgVersion.Replace(".", string.Empty)}_{serviceManifestVersion.Replace(".", string.Empty)}_{FabricServiceContext.NodeContext.NodeType}.txt");
#if !DEBUG
// If this has already been sent for this activated version (code/config) of nodetype x
if (File.Exists(filepath))
{
return;
}
#endif
this.telemetryEvents = new TelemetryEvents(
FabricClientInstance,
FabricServiceContext,
ServiceEventSource.Current,
this.token);
if (this.telemetryEvents.FabricObserverRuntimeNodeEvent(
codePkgVersion,
this.GetFabricObserverInternalConfiguration(),
"HealthState.Initialized"))
{
// Log a file to prevent re-sending this in case of process restart(s).
// This non-PII FO/Cluster info is versioned and should only be sent once per deployment (config or code updates.).
_ = this.Logger.TryWriteLogFile(filepath, "_");
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="ObserverManager"/> class.
/// </summary>
/// <param name="context">service context.</param>
/// <param name="token">cancellation token.</param>
public ObserverManager(IServiceProvider serviceProvider, CancellationToken token)
{
this.token = token;
this.cts = new CancellationTokenSource();
this.linkedSFRuntimeObserverTokenSource = CancellationTokenSource.CreateLinkedTokenSource(this.cts.Token, this.token);
FabricClientInstance = new FabricClient();
FabricServiceContext = serviceProvider.GetRequiredService <StatelessServiceContext>();
this.nodeName = FabricServiceContext?.NodeContext.NodeName;
FabricServiceContext.CodePackageActivationContext.ConfigurationPackageModifiedEvent += CodePackageActivationContext_ConfigurationPackageModifiedEvent;
// Observer Logger setup.
string logFolderBasePath;
string observerLogPath = GetConfigSettingValue(
ObserverConstants.ObserverLogPathParameter);
if (!string.IsNullOrEmpty(observerLogPath))
{
logFolderBasePath = observerLogPath;
}
else
{
string logFolderBase = Path.Combine(Environment.CurrentDirectory, "observer_logs");
logFolderBasePath = logFolderBase;
}
// this logs error/warning/info messages for ObserverManager.
this.Logger = new Logger("ObserverManager", logFolderBasePath);
this.HealthReporter = new ObserverHealthReporter(this.Logger);
this.SetPropertieSFromConfigurationParameters();
this.serviceCollection = serviceProvider.GetServices <ObserverBase>();
// Populate the Observer list for the sequential run loop.
this.observers = this.serviceCollection.Where(o => o.IsEnabled).ToList();
// FabricObserver Internal Diagnostic Telemetry (Non-PII).
// Internally, TelemetryEvents determines current Cluster Id as a unique identifier for transmitted events.
if (!FabricObserverInternalTelemetryEnabled)
{
return;
}
if (FabricServiceContext == null)
{
return;
}
string codePkgVersion = FabricServiceContext.CodePackageActivationContext.CodePackageVersion;
string serviceManifestVersion = FabricServiceContext.CodePackageActivationContext.GetConfigurationPackageObject("Config").Description.ServiceManifestVersion;
string filepath = Path.Combine(this.Logger.LogFolderBasePath, $"fo_telemetry_sent_{codePkgVersion.Replace(".", string.Empty)}_{serviceManifestVersion.Replace(".", string.Empty)}_{FabricServiceContext.NodeContext.NodeType}.log");
#if !DEBUG
// If this has already been sent for this activated version (code/config) of nodetype x
if (File.Exists(filepath))
{
return;
}
#endif
this.telemetryEvents = new TelemetryEvents(
FabricClientInstance,
FabricServiceContext,
ServiceEventSource.Current,
this.token);
string foInternalTelemetryData = this.GetFabricObserverInternalConfiguration();
if (this.telemetryEvents.FabricObserverRuntimeNodeEvent(
codePkgVersion,
foInternalTelemetryData,
"HealthState.Initialized"))
{
// Log a file to prevent re-sending this in case of process restart(s).
// This non-PII FO/Cluster info is versioned and should only be sent once per deployment (config or code updates.).
_ = this.Logger.TryWriteLogFile(filepath, foInternalTelemetryData);
}
}