/// <summary>Constructor to use for grain services</summary>
protected GrainService(GrainId grainId, Silo silo, ILoggerFactory loggerFactory)
: base(SystemTargetGrainId.Create(grainId.Type, silo.SiloAddress), silo.SiloAddress, lowPriority: true, loggerFactory: loggerFactory)
{
typeName = this.GetType().FullName;
Logger = loggerFactory.CreateLogger(typeName);
ring = silo.RingProvider;
StoppedCancellationTokenSource = new CancellationTokenSource();
}
internal SystemTarget(GrainType grainType, SiloAddress silo, bool lowPriority, ILoggerFactory loggerFactory)
: this(SystemTargetGrainId.Create(grainType, silo), silo, lowPriority, loggerFactory)
{
}
internal SystemTarget(GrainType grainType, SiloAddress silo, ILoggerFactory loggerFactory)
: this(SystemTargetGrainId.Create(grainType, silo), silo, false, loggerFactory)
{
}
private async Task RunAsync()
{
try
{
var grainFactory = _services.GetRequiredService <IInternalGrainFactory>();
var cancellationTask = _cancellation.Token.WhenCancelled();
while (!_cancellation.IsCancellationRequested)
{
var gateway = _gatewayManager.GetLiveGateway();
try
{
var provider = grainFactory.GetGrain <IClusterManifestSystemTarget>(SystemTargetGrainId.Create(Constants.ManifestProviderType, gateway).GrainId);
var refreshTask = provider.GetClusterManifest().AsTask();
var task = await Task.WhenAny(cancellationTask, refreshTask).ConfigureAwait(false);
if (ReferenceEquals(task, cancellationTask))
{
return;
}
if (!_updates.TryPublish(await refreshTask))
{
await Task.Delay(StandardExtensions.Min(_typeManagementOptions.TypeMapRefreshInterval, TimeSpan.FromMilliseconds(500)));
continue;
}
_initialized.TrySetResult(true);
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug("Refreshed cluster manifest");
}
await Task.WhenAny(cancellationTask, Task.Delay(_typeManagementOptions.TypeMapRefreshInterval));
}
catch (Exception exception)
{
_logger.LogWarning(exception, "Error trying to get cluster manifest from gateway {Gateway}", gateway);
await Task.Delay(StandardExtensions.Min(_typeManagementOptions.TypeMapRefreshInterval, TimeSpan.FromSeconds(5)));
}
}
}
finally
{
_initialized.TrySetResult(false);
if (_logger.IsEnabled(LogLevel.Debug))
{
_logger.LogDebug("Stopped refreshing cluster manifest");
}
}
}