private async Task OnRuntimeServicesStart(CancellationToken ct)
{
//TODO: Setup all (or as many as possible) of the class started in this call to work directly with lifecyce
var stopWatch = Stopwatch.StartNew();
// The order of these 4 is pretty much arbitrary.
StartTaskWithPerfAnalysis("Start Scheduler", scheduler.Start, stopWatch);
StartTaskWithPerfAnalysis("Start Message center", messageCenter.Start, stopWatch);
StartTaskWithPerfAnalysis("Start Incoming message agents", IncomingMessageAgentsStart, stopWatch);
void IncomingMessageAgentsStart()
{
incomingPingAgent.Start();
incomingSystemAgent.Start();
incomingAgent.Start();
}
StartTaskWithPerfAnalysis("Start local grain directory", LocalGrainDirectory.Start, stopWatch);
// Set up an execution context for this thread so that the target creation steps can use asynch values.
RuntimeContext.InitializeMainThread();
StartTaskWithPerfAnalysis("Init implicit stream subscribe table", InitImplicitStreamSubscribeTable, stopWatch);
void InitImplicitStreamSubscribeTable()
{
// Initialize the implicit stream subscribers table.
var implicitStreamSubscriberTable = Services.GetRequiredService <ImplicitStreamSubscriberTable>();
var grainTypeManager = Services.GetRequiredService <GrainTypeManager>();
implicitStreamSubscriberTable.InitImplicitStreamSubscribers(grainTypeManager.GrainClassTypeData.Select(t => t.Value.Type).ToArray());
}
var siloProviderRuntime = Services.GetRequiredService <SiloProviderRuntime>();
SiloStatisticsOptions statisticsOptions = Services.GetRequiredService <IOptions <SiloStatisticsOptions> >().Value;
runtimeClient.CurrentStreamProviderRuntime = siloProviderRuntime;
await StartAsyncTaskWithPerfAnalysis("Load StatisticProviders", LoadStatsProvider, stopWatch);
async Task LoadStatsProvider()
{
// can call SetSiloMetricsTableDataManager only after MessageCenter is created (dependency on this.SiloAddress).
await siloStatistics.SetSiloStatsTableDataManager(this, statisticsOptions).WithTimeout(initTimeout, $"SiloStatistics Setting SiloStatsTableDataManager failed due to timeout {initTimeout}");
await siloStatistics.SetSiloMetricsTableDataManager(this, statisticsOptions).WithTimeout(initTimeout,
$"SiloStatistics Setting SiloMetricsTableDataManager failed due to timeout {initTimeout}");
}
// This has to follow the above steps that start the runtime components
await StartAsyncTaskWithPerfAnalysis("Create system targets and inject dependencies", () =>
{
CreateSystemTargets();
return(InjectDependencies());
}, stopWatch);
// Validate the configuration.
// TODO - refactor validation - jbragg
//GlobalConfig.Application.ValidateConfiguration(logger);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="loadSheddingLimit"></param>
/// <param name="getNodeConfig">The method used to get the current node configuration.</param>
private LoadShedQueueFlowController(int loadSheddingLimit, SiloStatisticsOptions options)
{
this.options = options;
if (loadSheddingLimit < 0 || loadSheddingLimit > 100)
{
throw new ArgumentOutOfRangeException(nameof(loadSheddingLimit), "Value must be between 0-100");
}
this.loadSheddingLimit = loadSheddingLimit != 0 ? loadSheddingLimit : int.MaxValue;
}
/// <summary>
/// Creates a flow controller triggered when the CPU reaches a percentage of the cluster load shedding limit.
/// This is intended to reduce queue read rate prior to causing the silo to shed load.
/// Note: Triggered only when load shedding is enabled.
/// </summary>
/// <param name="options">The silo satistics options.</param>
/// <param name="percentOfSiloSheddingLimit">Percentage of load shed limit which triggers a reduction of queue read rate.</param>
/// <returns></returns>
public static IQueueFlowController CreateAsPercentOfLoadSheddingLimit(SiloStatisticsOptions options, int percentOfSiloSheddingLimit = SiloStatisticsOptions.DEFAULT_LOAD_SHEDDING_LIMIT)
{
if (percentOfSiloSheddingLimit < 0.0 || percentOfSiloSheddingLimit > 100.0)
{
throw new ArgumentOutOfRangeException(nameof(percentOfSiloSheddingLimit), "Percent value must be between 0-100");
}
// Start shedding before silo reaches shedding limit.
return(new LoadShedQueueFlowController((int)(options.LoadSheddingLimit * (percentOfSiloSheddingLimit / 100.0)), options));
}
public EventHubAdapterReceiver(EventHubPartitionSettings settings,
Func <string, IStreamQueueCheckpointer <string>, ILoggerFactory, ITelemetryProducer, IEventHubQueueCache> cacheFactory,
Func <string, Task <IStreamQueueCheckpointer <string> > > checkpointerFactory,
ILoggerFactory loggerFactory,
IQueueAdapterReceiverMonitor monitor,
SiloStatisticsOptions statisticsOptions,
ITelemetryProducer telemetryProducer,
Func <EventHubPartitionSettings, string, ILogger, ITelemetryProducer, Task <IEventHubReceiver> > eventHubReceiverFactory = null)
{
if (settings == null)
{
throw new ArgumentNullException(nameof(settings));
}
if (cacheFactory == null)
{
throw new ArgumentNullException(nameof(cacheFactory));
}
if (checkpointerFactory == null)
{
throw new ArgumentNullException(nameof(checkpointerFactory));
}
if (loggerFactory == null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
if (monitor == null)
{
throw new ArgumentNullException(nameof(monitor));
}
if (statisticsOptions == null)
{
throw new ArgumentNullException(nameof(statisticsOptions));
}
if (telemetryProducer == null)
{
throw new ArgumentNullException(nameof(telemetryProducer));
}
this.settings = settings;
this.cacheFactory = cacheFactory;
this.checkpointerFactory = checkpointerFactory;
this.loggerFactory = loggerFactory;
this.logger = this.loggerFactory.CreateLogger($"{this.GetType().FullName}.{settings.Hub.Path}.{settings.Partition}");
this.monitor = monitor;
this.telemetryProducer = telemetryProducer;
this.statisticsOptions = statisticsOptions;
this.eventHubReceiverFactory = eventHubReceiverFactory == null ? EventHubAdapterReceiver.CreateReceiver : eventHubReceiverFactory;
}
internal SiloPerformanceMetrics(
IHostEnvironmentStatistics hostEnvironmentStatistics,
IAppEnvironmentStatistics appEnvironmentStatistics,
ILoggerFactory loggerFactory,
IOptions <SiloStatisticsOptions> statisticsOptions)
{
this.loggerFactory = loggerFactory;
this.hostEnvironmentStatistics = hostEnvironmentStatistics;
this.appEnvironmentStatistics = appEnvironmentStatistics;
reportFrequency = TimeSpan.Zero;
overloadLatched = false;
overloadValue = false;
this.logger = loggerFactory.CreateLogger <SiloPerformanceMetrics>();
this.statisticsOptions = statisticsOptions.Value;
StringValueStatistic.FindOrCreate(StatisticNames.RUNTIME_IS_OVERLOADED, () => IsOverloaded.ToString());
}
private async Task OnRuntimeGrainServicesStart(CancellationToken ct)
{
var stopWatch = Stopwatch.StartNew();
await StartAsyncTaskWithPerfAnalysis("Init transaction agent", InitTransactionAgent, stopWatch);
async Task InitTransactionAgent()
{
ITransactionAgent transactionAgent = this.Services.GetRequiredService <ITransactionAgent>();
ISchedulingContext transactionAgentContext = (transactionAgent as SystemTarget)?.SchedulingContext;
await scheduler.QueueTask(transactionAgent.Start, transactionAgentContext)
.WithTimeout(initTimeout, $"Starting TransactionAgent failed due to timeout {initTimeout}");
}
// Load and init grain services before silo becomes active.
await StartAsyncTaskWithPerfAnalysis("Init grain services",
() => CreateGrainServices(), stopWatch);
this.membershipOracleContext = (this.membershipOracle as SystemTarget)?.SchedulingContext ??
this.fallbackScheduler.SchedulingContext;
await StartAsyncTaskWithPerfAnalysis("Starting local silo status oracle", StartMembershipOracle, stopWatch);
async Task StartMembershipOracle()
{
await scheduler.QueueTask(() => this.membershipOracle.Start(), this.membershipOracleContext)
.WithTimeout(initTimeout, $"Starting MembershipOracle failed due to timeout {initTimeout}");
logger.Debug("Local silo status oracle created successfully.");
}
var versionStore = Services.GetService <IVersionStore>();
await StartAsyncTaskWithPerfAnalysis("Init type manager", () => scheduler
.QueueTask(() => this.typeManager.Initialize(versionStore), this.typeManager.SchedulingContext)
.WithTimeout(this.initTimeout, $"TypeManager Initializing failed due to timeout {initTimeout}"), stopWatch);
//if running in multi cluster scenario, start the MultiClusterNetwork Oracle
if (this.multiClusterOracle != null)
{
await StartAsyncTaskWithPerfAnalysis("Start multicluster oracle", StartMultiClusterOracle, stopWatch);
async Task StartMultiClusterOracle()
{
logger.Info("Starting multicluster oracle with my ServiceId={0} and ClusterId={1}.",
this.clusterOptions.ServiceId, this.clusterOptions.ClusterId);
this.multiClusterOracleContext = (multiClusterOracle as SystemTarget)?.SchedulingContext ??
this.fallbackScheduler.SchedulingContext;
await scheduler.QueueTask(() => multiClusterOracle.Start(), multiClusterOracleContext)
.WithTimeout(initTimeout, $"Starting MultiClusterOracle failed due to timeout {initTimeout}");
logger.Debug("multicluster oracle created successfully.");
}
}
try
{
SiloStatisticsOptions statisticsOptions = Services.GetRequiredService <IOptions <SiloStatisticsOptions> >().Value;
StartTaskWithPerfAnalysis("Start silo statistics", () => this.siloStatistics.Start(statisticsOptions), stopWatch);
logger.Debug("Silo statistics manager started successfully.");
// Finally, initialize the deployment load collector, for grains with load-based placement
await StartAsyncTaskWithPerfAnalysis("Start deployment load collector", StartDeploymentLoadCollector, stopWatch);
async Task StartDeploymentLoadCollector()
{
var deploymentLoadPublisher = Services.GetRequiredService <DeploymentLoadPublisher>();
await this.scheduler.QueueTask(deploymentLoadPublisher.Start, deploymentLoadPublisher.SchedulingContext)
.WithTimeout(this.initTimeout, $"Starting DeploymentLoadPublisher failed due to timeout {initTimeout}");
logger.Debug("Silo deployment load publisher started successfully.");
}
// Start background timer tick to watch for platform execution stalls, such as when GC kicks in
this.platformWatchdog = new Watchdog(statisticsOptions.LogWriteInterval, this.healthCheckParticipants, this.executorService, this.loggerFactory);
this.platformWatchdog.Start();
if (this.logger.IsEnabled(LogLevel.Debug))
{
logger.Debug("Silo platform watchdog started successfully.");
}
}
catch (Exception exc)
{
this.SafeExecute(() => this.logger.Error(ErrorCode.Runtime_Error_100330, String.Format("Error starting silo {0}. Going to FastKill().", this.SiloAddress), exc));
throw;
}
if (logger.IsEnabled(LogLevel.Debug))
{
logger.Debug("Silo.Start complete: System status = {0}", this.SystemStatus);
}
}
/// <summary>
/// Creates a flow controller triggered when the CPU reaches the specified limit.
/// Note: Triggered only when load shedding is enabled.
/// </summary>
/// <param name="loadSheddingLimit">Percentage of CPU which triggers queue read rate reduction</param>
/// <param name="options">The silo satistics options.</param>
/// <returns></returns>
public static IQueueFlowController CreateAsPercentageOfCPU(int loadSheddingLimit, SiloStatisticsOptions options)
{
if (loadSheddingLimit < 0 || loadSheddingLimit > 100)
{
throw new ArgumentOutOfRangeException(nameof(loadSheddingLimit), "Value must be between 0-100");
}
return(new LoadShedQueueFlowController(loadSheddingLimit, options));
}