I have a service that I wrote that performs basic business logic and functionality. The service is designed as a service shell in one project and all functions in a Windows library project. I also have a console applicator that also wraps a Windows library project.
In our pre-production environment, this works great. The service begins, and everything is still fun.
In our production environment, the service does not start.
Application: URTWorkerService.exe Framework Version: v4.0.30319 Description: The process was terminated due to an unhandled exception. Exception Info: System.IO.FileNotFoundException Stack: at URTWorker.Worker.Run() at System.Threading.ThreadHelper.ThreadStart_Context(System.Object) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean) at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object) at System.Threading.ThreadHelper.ThreadStart()
I thought it was weird and added a call to Debug.WriteLine () to it like this:
/// <summary> /// Entry point method into the Worker class /// </summary> public void Run() { Debug.WriteLine("Did we make it this far?"); var exitEventArgs = ExitEventArgs.Clear; try { BroadcastEcho("Worker::Run::Enter", TraceLevel.Verbose); WorkerStartedOn = DateTime.Now; State = AsyncState.Running; BroadcastEcho("Worker::Run::Pre initialize", TraceLevel.Verbose); Initialize(); BroadcastEcho("Worker::Run::Post initialize", TraceLevel.Verbose); ExecuteWorkerLoop(); } catch (Exception ex) { exitEventArgs.Reason = ExitReason.Exception; var vars = new Dictionary<string, string>(); StandardMessage message; // TODO Comment about this if (ex is FormatException && ex.Message.Contains("FieldNames.cs")) { BroadcastEcho("The field definition has changed. Generating new code file.", ex); var path = CreateConstantsCodeFile(); BroadcastEcho("The file has been saved to " + path, TraceLevel.Error); vars.Add("FieldsNamesPath", path); message = StandardMessage.NewFieldsNameFile; } else { BroadcastEcho("An unhandled exception was thrown", ex); vars.Add("ExtraInfo", "<b>This is a crashing exception.</b>"); message = StandardMessage.UnhandledError; } Notifier.SendErrorMail(message, vars, ex); } var lastCount = -1; while (Notifier.MailInTransit.Count > 0) { if (lastCount != Notifier.MailInTransit.Count) { var suffix = ( lastCount != 1 ? "s" : string.Empty); lastCount = Notifier.MailInTransit.Count; BroadcastEcho(string.Format("Waiting for {0} mail item{1} to finish sending", lastCount, suffix), TraceLevel.Info); } Thread.Sleep(0); } State = AsyncState.Stopped; BroadcastEcho("Worker::Run::Exit", TraceLevel.Verbose); Exit(exitEventArgs); }
Here's a DbgView capture ...
[11864] Program::Main [11864] Verbose::WorkerService::Enter [11864] Verbose::WorkerService::Exit [11864] Info::Starting Worker Service [11864] Verbose::OnStart::Enter [11864] Verbose::OnStart::Worker Service received Start command [11864] Verbose::OnStart::Current directory = C:\Windows\system32 [11864] Verbose::OnStart::try::Created workerThread [11864] Verbose::OnStart::try::workerThread started [11864] Verbose::OnStart::try::Done waiting [11864] Verbose::OnStart::Exit
You can see all the BroadcastEcho() messages as indicated by the TraceLevel value, but Debug.WriteLine() never appears.
Then I thought that it could be a problem with binding to the assembly. Here are the results of Fusion magazine:
*** Assembly Binder Log Entry (1/24/2013 @ 7:47:52 AM) *** The operation was successful. Bind result: hr = 0x0. The operation completed successfully. Assembly manager loaded from: C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll Running under executable C:\RTWorker\URTWorkerService.exe --- A detailed error log follows. === Pre-bind state information === LOG: User = REDMOND\msrrtsa LOG: DisplayName = URTWorker, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null (Fully-specified) LOG: Appbase = file:///C:/RTWorker/ LOG: Initial PrivatePath = NULL LOG: Dynamic Base = NULL LOG: Cache Base = NULL LOG: AppName = URTWorkerService.exe Calling assembly : URTWorkerService, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null. === LOG: This bind starts in default load context. LOG: Using application configuration file: C:\RTWorker\URTWorkerService.exe.Config LOG: Using host configuration file: LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config. LOG: Policy not being applied to reference at this time (private, custom, partial, or location-based assembly bind). LOG: Attempting download of new URL file:///C:/RTWorker/URTWorker.DLL. LOG: Assembly download was successful. Attempting setup of file: C:\RTWorker\URTWorker.dll LOG: Entering run-from-source setup phase. LOG: Assembly Name is: URTWorker, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null LOG: Binding succeeds. Returns assembly from C:\RTWorker\URTWorker.dll. LOG: Assembly is loaded in default load context.
Both machines are Windows Server 2008 R2 SP1. Pre-production is a virtual machine, production is a physical machine.
Any suggestions as to what this might be?