public override bool OnStart()
{
try
{
// Set the maximum number of concurrent connections
ServicePointManager.DefaultConnectionLimit = int.MaxValue;
// Pull the configuration object from service and app configuration
_configuration = Configuration.GetCurrentConfiguration();
// Create the instrumentation (performance counter publisher)
var instrumentationPublisher =
new ColdStorageInstrumentationManager(
instrumentationEnabled: true,
installInstrumentation: false)
.CreatePublisher("WaWorkerHost");
// Activate the cold storage processor
_coordinator = ColdStorageCoordinator.CreateAsync(
RoleEnvironment.CurrentRoleInstance.Id,
_configuration.EventHubName,
_configuration.ConsumerGroupName,
_configuration.EventHubConnectionString,
_configuration.CheckpointStorageAccount,
_configuration.MaxBatchSize,
_configuration.PreFetchCount,
_configuration.ReceiveTimeout,
new[] { _configuration.BlobWriterStorageAccount },
_configuration.ContainerName,
_configuration.RollSizeForBlobWriterMb,
_configuration.BlobPrefix,
_configuration.CircuitBreakerWarningLevel,
_configuration.CircuitBreakerTripLevel,
_configuration.CircuitBreakerStallInterval,
_configuration.CircuitBreakerLogCooldownInterval,
instrumentationPublisher
).Result;
bool result = base.OnStart();
Trace.TraceInformation("Processor has been started");
return(result);
}
catch (Exception ex)
{
LogHelpers.HandleRoleException(Logger, "Run()", ex);
throw;
}
}
private static async Task RunAsync(CancellationToken token)
{
var configuration = Configuration.GetCurrentConfiguration();
ColdStorageCoordinator processor = null;
var instrumentationPublisher =
new ColdStorageInstrumentationManager(true, true).CreatePublisher("Console");
processor =
await ColdStorageCoordinator.CreateAsync(
"Console",
configuration.EventHubName,
configuration.ConsumerGroupName,
configuration.EventHubConnectionString,
configuration.CheckpointStorageAccount,
configuration.MaxBatchSize,
configuration.PreFetchCount,
configuration.ReceiveTimeout,
new[] { configuration.BlobWriterStorageAccount },
configuration.ContainerName,
configuration.RollSizeForBlobWriterMb,
configuration.BlobPrefix,
configuration.CircuitBreakerWarningLevel,
configuration.CircuitBreakerTripLevel,
configuration.CircuitBreakerStallInterval,
configuration.CircuitBreakerLogCooldownInterval,
instrumentationPublisher);
Console.WriteLine("Running processor");
try
{
await Task.Delay(Timeout.InfiniteTimeSpan, token);
}
catch (TaskCanceledException) { /* expected cancellation */ }
processor.Dispose();
}
