public override void OnStop()
{
this.telemetry.TrackTrace("WorkerRole stopping", SeverityLevel.Information);
try
{
this.stopEvent.Set();
if (this.settingsWatcher != null)
{
this.settingsWatcher.Dispose();
this.settingsWatcher = null;
}
if (this.trainProcesserHost != null)
{
this.trainProcesserHost.Dispose();
this.trainProcesserHost = null;
}
if (this.webApp != null)
{
this.webApp.Dispose();
this.webApp = null;
}
base.OnStop();
}
catch (Exception e)
{
this.telemetry.TrackException(e);
}
this.telemetry.TrackTrace("WorkerRole stopped", SeverityLevel.Information);
}
public override bool OnStart()
{
try
{
// Set the maximum number of concurrent connections
ServicePointManager.DefaultConnectionLimit = 128;
// For information on handling configuration changes
// see the MSDN topic at http://go.microsoft.com/fwlink/?LinkId=166357.
bool result = base.OnStart();
TelemetryConfiguration.Active.InstrumentationKey = CloudConfigurationManager.GetSetting("APPINSIGHTS_INSTRUMENTATIONKEY");
//TelemetryConfiguration.Active.TelemetryChannel.DeveloperMode = true;
this.telemetry = new TelemetryClient();
try
{
this.telemetry.TrackTrace("WorkerRole starting", SeverityLevel.Information);
this.trainProcesserHost = new LearnEventProcessorHost();
this.settingsWatcher = new OnlineTrainerSettingsWatcher(this.trainProcesserHost);
this.StartRESTAdminEndpoint();
}
catch (Exception e)
{
this.telemetry.TrackException(e);
// still start to give AppInsights a chance to log
}
return(result);
}
catch (Exception e)
{
Debugger.Log(1, "ERROR", $"VowpalWabbit.AzureWorker failed to start: {e.Message} {e.StackTrace}");
throw;
}
}