private async Task RefreshGrainTypeResolver(object _)
{
try
{
GrainTypeResolver = await transport.GetGrainTypeResolver(this.InternalGrainFactory);
}
catch (Exception ex)
{
this.logger.Warn(ErrorCode.TypeManager_GetClusterGrainTypeResolverError, "Refresh the GrainTypeResolver failed. WIll be retried after", ex);
}
}
// used for testing to (carefully!) allow two clients in the same process
private async Task StartInternal()
{
await this.gatewayListProvider.InitializeGatewayListProvider()
.WithTimeout(initTimeout, $"gatewayListProvider.InitializeGatewayListProvider failed due to timeout {initTimeout}");
var generation = -SiloAddress.AllocateNewGeneration(); // Client generations are negative
transport = ActivatorUtilities.CreateInstance <ClientMessageCenter>(this.ServiceProvider, localAddress, generation, handshakeClientId);
transport.Start();
CurrentActivationAddress = ActivationAddress.NewActivationAddress(transport.MyAddress, handshakeClientId);
listeningCts = new CancellationTokenSource();
var ct = listeningCts.Token;
listenForMessages = true;
// Keeping this thread handling it very simple for now. Just queue task on thread pool.
Task.Run(
() =>
{
while (listenForMessages && !ct.IsCancellationRequested)
{
try
{
RunClientMessagePump(ct);
}
catch (Exception exc)
{
logger.Error(ErrorCode.Runtime_Error_100326, "RunClientMessagePump has thrown exception", exc);
}
}
},
ct).Ignore();
grainTypeResolver = await transport.GetGrainTypeResolver(this.InternalGrainFactory);
ClientStatistics.Start(transport, clientId);
await StreamingInitialize();
}
// used for testing to (carefully!) allow two clients in the same process
private async Task StartInternal(Func <Exception, Task <bool> > retryFilter)
{
// Initialize the gateway list provider, since information from the cluster is required to successfully
// initialize subsequent services.
var initializedGatewayProvider = new[] { false };
await ExecuteWithRetries(async() =>
{
if (!initializedGatewayProvider[0])
{
await this.gatewayListProvider.InitializeGatewayListProvider();
initializedGatewayProvider[0] = true;
}
var gateways = await this.gatewayListProvider.GetGateways();
if (gateways.Count == 0)
{
var gatewayProviderType = this.gatewayListProvider.GetType().GetParseableName();
var err = $"Could not find any gateway in {gatewayProviderType}. Orleans client cannot initialize.";
logger.Error(ErrorCode.GatewayManager_NoGateways, err);
throw new SiloUnavailableException(err);
}
},
retryFilter);
var generation = -SiloAddress.AllocateNewGeneration(); // Client generations are negative
transport = ActivatorUtilities.CreateInstance <ClientMessageCenter>(this.ServiceProvider, localAddress, generation, handshakeClientId);
transport.Start();
CurrentActivationAddress = ActivationAddress.NewActivationAddress(transport.MyAddress, handshakeClientId);
listeningCts = new CancellationTokenSource();
var ct = listeningCts.Token;
listenForMessages = true;
// Keeping this thread handling it very simple for now. Just queue task on thread pool.
Task.Run(
() =>
{
while (listenForMessages && !ct.IsCancellationRequested)
{
try
{
RunClientMessagePump(ct);
}
catch (Exception exc)
{
logger.Error(ErrorCode.Runtime_Error_100326, "RunClientMessagePump has thrown exception", exc);
}
}
},
ct).Ignore();
await ExecuteWithRetries(
async() => this.GrainTypeResolver = await transport.GetGrainTypeResolver(this.InternalGrainFactory),
retryFilter);
this.typeMapRefreshTimer = new AsyncTaskSafeTimer(
this.logger,
RefreshGrainTypeResolver,
null,
this.typeMapRefreshInterval,
this.typeMapRefreshInterval);
ClientStatistics.Start(transport, clientId);
await ExecuteWithRetries(StreamingInitialize, retryFilter);
async Task ExecuteWithRetries(Func <Task> task, Func <Exception, Task <bool> > shouldRetry)
{
while (true)
{
try
{
await task();
return;
}
catch (Exception exception) when(shouldRetry != null)
{
var retry = await shouldRetry(exception);
if (!retry)
{
throw;
}
}
}
}
}
// used for testing to (carefully!) allow two clients in the same process
private async Task StartInternal(Func <Exception, Task <bool> > retryFilter)
{
// Initialize the gateway list provider, since information from the cluster is required to successfully
// initialize subsequent services.
var initializedGatewayProvider = new[] { false };
await ExecuteWithRetries(async() =>
{
if (!initializedGatewayProvider[0])
{
await this.gatewayListProvider.InitializeGatewayListProvider();
initializedGatewayProvider[0] = true;
}
var gateways = await this.gatewayListProvider.GetGateways();
if (gateways.Count == 0)
{
var gatewayProviderType = this.gatewayListProvider.GetType().GetParseableName();
var err = $"Could not find any gateway in {gatewayProviderType}. Orleans client cannot initialize.";
logger.Error(ErrorCode.GatewayManager_NoGateways, err);
throw new SiloUnavailableException(err);
}
},
retryFilter);
var generation = -SiloAddress.AllocateNewGeneration(); // Client generations are negative
transport = ActivatorUtilities.CreateInstance <ClientMessageCenter>(this.ServiceProvider, localAddress, generation, clientId);
transport.RegisterLocalMessageHandler(this.HandleMessage);
transport.Start();
CurrentActivationAddress = ActivationAddress.NewActivationAddress(transport.MyAddress, clientId);
await ExecuteWithRetries(
async() => this.GrainTypeResolver = await transport.GetGrainTypeResolver(this.InternalGrainFactory),
retryFilter);
this.typeMapRefreshTimer = new AsyncTaskSafeTimer(
this.logger,
RefreshGrainTypeResolver,
null,
this.typeMapRefreshInterval,
this.typeMapRefreshInterval);
ClientStatistics.Start(transport, clientId);
await ExecuteWithRetries(StreamingInitialize, retryFilter);
async Task ExecuteWithRetries(Func <Task> task, Func <Exception, Task <bool> > shouldRetry)
{
while (true)
{
try
{
await task();
return;
}
catch (Exception exception) when(shouldRetry != null)
{
var retry = await shouldRetry(exception);
if (!retry)
{
throw;
}
}
}
}
}
