Event log Error: Failed to CoCreate profiler

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  Hi there,
  
  could you update to ANTS Profiler 2.7 please? You can achieve this by using the file menu Help->Check for updates
  
  Do let us know if this makes any difference?
  
  Best regards,
  
  Tom Harris
  
  Red Gate Software

  Tom Harris October 06, 2006 04:57

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  I installed 2.7 and attempted to profile again. Nothing changed. The behavior is exactly the same as described in my original post. Again, I tried running the service as a member of local administrators and that did not help either.
  
  Bruce

  Bruce Allen October 06, 2006 13:23

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  Hi Bruce,
  
  This is interesting... normally a failure to co-create profiler would prevent you from getting any results. Maybe you're trying to profile two applications at the same time?

  Brian Donahue October 07, 2006 01:57

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  Hi there,
  
  given that the profiler starts profiling correctly, the 'failed to co-create profiler' errors probably reflect new processes that are being created (these will not be profiled as we only profile 1 process during each session). I'm not sure what would cause the app to run so slowly though. Could you try profiling a release build, or delete the pdb files?
  
  Thanks,
  
  Tom Harris
  
  Red Gate Software

  Tom Harris October 09, 2006 06:44

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  I tried profiling a release build with no pdb files and nothing changed. I had another developer in the office profile his app and the same thing happened. The strange thing is that it does not always happen at the same place. Usually the login page loads just fine, and after a couple of postbacks the errors begin. But sometimes it's on Page A and sometimes it's on page B, and it might be different on the next run. Our code is not starting any new processes.

  Bruce Allen October 09, 2006 15:05

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  Hello,
  
  Does it have anything to do with the amount of methods being profiled? Maybe you are running too low on physical memory?

  Brian Donahue October 10, 2006 08:51

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  No, I have 2 gigs and I'm only using about 1.25 gigs
  
  Bruce

  Bruce Allen October 10, 2006 12:17

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  Hi Bruce,
  
  Does your web application call any 'serviced components' (COM+) on the webserver? Maybe these are where the error is occurring?

  Brian Donahue October 10, 2006 13:04

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  Nope, no serviced components

  Bruce Allen October 10, 2006 14:52

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  So what's the next step. This issue is still unresolved. Would you like some logs?
  
  Bruce

  Bruce Allen October 23, 2006 14:20

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  Hi Bruce,
  
  You can give it a try, but more than likely you won't have corelog.txt because the component is not loading in order to create its log.
  
  Have we ruled out rights issues? Can you profile when you are logged in as administrator?

  Brian Donahue October 24, 2006 04:43

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  I am a member of the local administrators group, so it's always running as an admin. The service is also running as me, so I don't think it's a security problem.
  
  Bruce

  Bruce Allen October 24, 2006 16:36

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  Silly idea but may work... can you temporarily make the ASPNET user a member of the local computer's administrators group and see if you can profile then?

  Brian Donahue October 25, 2006 04:54

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  To my surprise, I found that ASPNET was already a member of local administrators.
  
  Bruce

  Bruce Allen October 26, 2006 12:48

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  Then ASPNET is the user that the code is running as, I assume. This computer is not also a domain controller, is it? If so, are you using mandatory or roaming profiles, and is the server also a terminal server or are you otherwise remoting into the server?

  Brian Donahue October 26, 2006 13:24

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  Machine is neither a domain controller or a terminal server. Just plain old Win XP Pro, SP2.
  
  Bruce

  Bruce Allen October 30, 2006 11:48

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  Hello Bruce,
  
  Can you please try upgrading to version 2.7 of ANTS Profiler? This may help. Otherwise, you can try enabling logging, by creating a logs folder inside the ANTS Profiler folder. After restarting the ANTS Profiler Service, you will get some log files in the folder. Hopefully there will be a corelog_xxx.txt created before the Profiling crashes...

  Brian Donahue October 30, 2006 11:54

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  Per previous instructions, I have already upgraded to 2.7. I did enable logging and I have corelog file. I don't see a way to upload it in the forum. What would you like me to do with it?
  
  Bruce

  Bruce Allen October 30, 2006 12:27

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  Hi Bruce,
  
  Please email it to support@red-gate.com. Thanks!

  Brian Donahue October 30, 2006 13:33

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  file sent

  Bruce Allen October 31, 2006 12:23

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  How about changing the account logon for the ANTS Profiler Service in the services control panel from LocalSystem to a named account with admin rights?

  Brian Donahue November 02, 2006 09:29

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  already tried that. no improvement.

  Bruce Allen November 03, 2006 14:42

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  Hi Bruce,
  
  According to your core log, a named pipe for ANTS Profiler cannot be started on your computer. The core component sets up a named pipe at \\.\ANTSProfiler, and for some reason, your computer is not allowing this. Have you checked your system log for any errors relating to named pipes?

  Brian Donahue November 06, 2006 04:47

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  I don't see any errors like that in the event log. I have sent you my Application Event log for your inspection.
  
  Bruce

  Bruce Allen November 06, 2006 11:17

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  Hi Bruce,
  
  Thanks for that. The only evidence I can find in there is a bunch of application errors from aspnet_wp.exe. Can you please check the system log, as opposed, to the application log, for any errors relating to the system not being able to create a named pipe?

  Brian Donahue November 06, 2006 13:20

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  Can you try using sysinternals Process Explorer to see if there is already an open named pipe called \\.\ANTSProfiler?
  http://www.microsoft.com/technet/sysint ... lorer.mspx

  Brian Donahue November 09, 2006 06:16

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