Unable to Log Event using ETW in RoleManager

Question

Hi Guys,

I have run into a problem with the RoleManager in a Worker Role that I have developed. 

This simple line  ->  RoleManager.WriteToLog("Information", "Working"); generates an exeception -

Microsoft.ServiceHosting.ServiceRuntime.RoleException was unhandled by user code
  Message="Unable to Log Event using ETW."
  Source="Microsoft.ServiceHosting.ServiceRuntime"
  StackTrace:
       at Microsoft.ServiceHosting.ServiceRuntime.Implementation.Events.RoleEventLog.Log(String message)
       at Microsoft.ServiceHosting.ServiceRuntime.RoleManager.WriteToLog(String eventLogName, String message)
       at WorkerRole1.WorkerRole.Start()
       at Microsoft.VisualStudio.CloudService.WindowsAzureIntegration.DebuggingRoleEntryPoint.Start()
       at Microsoft.ServiceHosting.ServiceRuntime.Internal.RoleEntryPointProxy.<Start>b__4()
       at Microsoft.ServiceHosting.ServiceRuntime.Internal.LogRoleEntryPointProxy.<>c__DisplayClass9.<DoAction>b__8()
       at Microsoft.ServiceHosting.ServiceRuntime.Internal.RuntimeCommon.DoAction(Action act)
  InnerException:

Any ideas on this? This was working before.

Answer 1

We've sometimes seen this error when you're logging in a very tight loop.  Perhaps a threshold is being hit.  Does that sound likely in your code?

Answer 2

Hi Steve, thank you. I checked and it was my doing. I have left the default messgaing loop in the worker role and removed the 10 second delay. Opps..

Conor.