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POWindows Azure Worker Role not getting past first line of code
 

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  1. POWindows Azure Worker Role not getting past first line of code
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    <p>I have a worker role that works perfectly in development but doesn't work when deployed. "Doesn't work" is rather vague, but that's really all I have to go on as I'm not seeing any errors or anything (in the event log anyway - maybe there is somewhere else I can look). I have added some trace statements to my code and I'm seeing the first one come out, but none of the others.</p> <p><strong>WorkerRole Code:</strong></p> <pre><code>public class WorkerRole : RoleEntryPoint { #region Member variables private IWindsorContainer _container; private IJob[] _jobs; #endregion #region Methods public override bool OnStart() { ConfigureDiagnostics(); Trace.WriteLine("WorkerRole.OnStart()"); try { Initialize(); Trace.WriteLine("Resolving jobs..."); _jobs = _container.ResolveAll&lt;IJob&gt;(); StartJobs(); return base.OnStart(); } catch (Exception ex) { TraceUtil.TraceException(ex); throw; } finally { Trace.WriteLine("WorkerRole.OnStart - Complete"); Trace.Flush(); } } /// &lt;summary&gt; /// Sets up diagnostics. /// &lt;/summary&gt; private void ConfigureDiagnostics() { DiagnosticMonitorConfiguration dmc = DiagnosticMonitor.GetDefaultInitialConfiguration(); dmc.Logs.ScheduledTransferPeriod = TimeSpan.FromMinutes(1); dmc.Logs.ScheduledTransferLogLevelFilter = LogLevel.Verbose; DiagnosticMonitor.Start(Constants.DiagnosticsConnectionString, dmc); } /// &lt;summary&gt; /// Sets up the IoC container etc. /// &lt;/summary&gt; private void Initialize() { Trace.WriteLine("WorkerRole.Initialize()"); try { Trace.WriteLine("Configuring AutoMapper..."); AutoMapperConfiguration.Configure(); Trace.WriteLine("Configuring Windsor..."); _container = new WindsorContainer(); Trace.WriteLine(string.Format("Installing assemblies from directory...{0}", Path.Combine(Environment.GetEnvironmentVariable(Constants.RoleRoot), Constants.AppRoot))); _container.Install(FromAssembly.InDirectory( new AssemblyFilter(Path.Combine(Environment.GetEnvironmentVariable(Constants.RoleRoot), Constants.AppRoot)))); Trace.WriteLine(string.Format("Setting the default connection limit...")); ServicePointManager.DefaultConnectionLimit = 12; } finally { Trace.WriteLine("WorkerRole.Initialize - Complete"); } } /// &lt;summary&gt; /// Starts all of the jobs. /// &lt;/summary&gt; private void StartJobs() { Trace.WriteLine("WorkerRole.StartJobs()"); try { foreach (IJob job in _jobs) { job.Start(); } } finally { Trace.WriteLine("WorkerRole.StartJobs - Complete"); } } public override void OnStop() { Trace.WriteLine("WorkerRole.OnStop()"); try { foreach (IJob job in _jobs) { job.Stop(); } _container.Dispose(); } finally { Trace.WriteLine("WorkerRole.OnStop - Complete"); } } #endregion #region Private util classes public static class AutoMapperConfiguration { public static void Configure() { Mapper.Initialize(x =&gt; x.AddProfile&lt;ModelProfile&gt;()); } } #endregion } </code></pre> <p><strong>TraceUtil Code:</strong></p> <pre><code>public static class TraceUtil { public static void TraceException(Exception ex) { StringBuilder buffer = new StringBuilder(); while (ex != null) { buffer.AppendFormat("{0} : ", ex.GetType()); buffer.AppendLine(ex.Message); buffer.AppendLine(ex.StackTrace); ex = ex.InnerException; } Trace.TraceError(buffer.ToString()); } } </code></pre> <p><strong>Config:</strong></p> <pre><code>&lt;?xml version="1.0" encoding="utf-8" ?&gt; &lt;configuration&gt; ... &lt;system.diagnostics&gt; &lt;trace autoflush="true"&gt; &lt;listeners&gt; &lt;add type="Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="AzureDiagnostics"&gt; &lt;filter type="" /&gt; &lt;/add&gt; &lt;/listeners&gt; &lt;/trace&gt; &lt;/system.diagnostics&gt; &lt;/configuration&gt; </code></pre> <p>Once the worker has started, if I look in the WADLogsTable, all I see is "WorkerRole.OnStart()" and nothing else!</p> <p>Any ideas on what the problem could be or how to troubleshoot this would be appreciated.</p> <p><strong>Update:</strong> If I stop the role, I don't see any of the debug statements from the <code>OnStop()</code> method either.</p> <p><strong>Update:</strong> I <em>must</em> have something configured incorrectly with my diagnostics. I thought I was seeing my debug come out correctly when debugging locally, but it turns out I'm not. I see everything in the output window, but I don't see everything in the storage table. I am seeing the following entries in development:</p> <pre><code>WorkerRole.OnStart() WorkerRole.Initialize() Configuring AutoMapper... </code></pre> <p>I realize that the trace output is only periodically uploaded, but I've waited 5 minutes or so, so I think this should be long enough, since I have it set to 1 minute.</p> <p><strong>Update:</strong> As suggested by @kwill in the comments section I have tried adding a file trace listener as follows:</p> <pre><code> &lt;system.diagnostics&gt; &lt;trace autoflush="true"&gt; &lt;listeners&gt; &lt;add type="Microsoft.WindowsAzure.Diagnostics.DiagnosticMonitorTraceListener, Microsoft.WindowsAzure.Diagnostics, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" name="AzureDiagnostics"&gt; &lt;/add&gt; &lt;add name="File" type="System.Diagnostics.TextWriterTraceListener" initializeData="C:\TextWriterOutput.log" /&gt; &lt;/listeners&gt; &lt;/trace&gt; &lt;/system.diagnostics&gt; </code></pre> <p>This works fine in my development environment and seems more reliable as well as I get all of the debug out that I would expect. When I deploy it to staging however, the TextWriterOutput.log file isn't even created!</p> <p>I really need a reliable way of getting debug out of my worker role so that I can troubleshoot the ultimate problem, which is that my jobs aren't working - at this point I still have no idea what they are even trying to do as I can't get any debug out!</p> <p><strong>Update:</strong> I am pretty sure that the missing dll idea suggested by most people is not the problem. To hopefully prove this, I have overridden the run method as shown below and I am seeing the "Heartbeat..." debug come out. It seems to me that either the diagnostics functionality or at least the way I have it configured is unreliable, which is preventing me from investigating why on earth my jobs aren't running.</p> <pre><code> public override void Run() { Trace.WriteLine("LearningMiles.JobProcessor.WorkerRole.Run()", "Information"); try { while (true) { Thread.Sleep(10000); Trace.WriteLine("Heartbeat...", "Verbose"); } } catch (Exception ex) { TraceUtil.TraceException(ex); throw; } finally { Trace.WriteLine("LearningMiles.JobProcessor.WorkerRole.Run() - Complete", "Information"); } } </code></pre> <p><strong>Update:</strong> I have now cross posted this problem on the <a href="http://social.msdn.microsoft.com/Forums/en-US/windowsazuretroubleshooting/thread/cb9ec387-8ba3-46e1-aa51-499e041916c4" rel="nofollow">Windows Azure MSDN forum</a>.</p> <p><strong>Update:</strong> As suggested in the comments, I have now tried removing all 'useful' code. In development this resulted in all of the debug being output. I then tried <em>just</em> removing the call to <code>AutomapperConfiguration.Configure()</code> since previously I was seeing nothing come out after that call. This resulted in some of the trace statements not coming out again. Importantly however, I was seeing the trace statements that I have put in the "jobs". Since it's the jobs not running that I ultimately want to resolve, I deployed that version of the code to staging, but there I just see the OnStart() trace and the "heartbeat" trace. I don't think this really helps, but maybe it will give someone some ideas.</p>
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    1. COHave you properly setup your storage account for diagnostics? Some folks forget to remove the LocalStorage setting
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    2. COI believe so. I am getting one entry in the table which seems to prove that theory. Also, I did make that mistake originally, but VS wouldn't build the package with it left like that.
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    3. COWhat happens if you remove all 'useful' code from all methods and leave only `Trace.WriteLine` calls and deploy that to staging? Still no messages except the first one?
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      1. POWindows Azure Worker Role not getting past first line of code
      1. USYuriy Guts
 

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