CCNET reports build failure with no reason

We use CCNET 1.4.4.83 on Win 2003 SP2. A few days ago CCNET started to report build failures with no specific reason. The project contains a single exec task which runs build.bat. The batch does all the job (msbuild, fxcop, db scripts, tests) but in the server log i can see that not all the开发者_Python百科 commands were executed from build.bat. It looks like something kills the process in the middle but i'm sure it's not timeout issue. I tried to disable anti-virus software - no luck. The service is running under a local admin account. If i run build.bat manually on the CCNET machine it always succeeds.

Here is the log fragment:

2009-11-10 11:26:48,584 [288:DEBUG] [trunk C:\integration\trunk\src\build.bat]     60 Warning(s)
2009-11-10 11:26:48,584 [288:DEBUG] [trunk C:\integration\trunk\src\build.bat]     0 Error(s)
2009-11-10 11:26:48,584 [288:DEBUG] [trunk C:\integration\trunk\src\build.bat] 
2009-11-10 11:26:48,584 [288:DEBUG] [trunk C:\integration\trunk\src\build.bat] Time Elapsed 00:00:23.73
2009-11-10 11:26:48,724 [trunk:INFO] Task execution failed
2009-11-10 11:26:48,724 [trunk:INFO] Task output: 
<buildresults>
 -- the batch output here--
</buildresults>

2009-11-10 11:26:48,803 [trunk:INFO] Merging file: c:\integration\trunk\Artifacts\Tests1.xml
2009-11-10 11:26:48,803 [trunk:INFO] Merging file: c:\integration\trunk\Artifacts\FxCop.xml
2009-11-10 11:26:48,803 [trunk:WARN] File not Found: c:\integration\trunk\Artifacts\FxCop.xml
2009-11-10 11:26:49,428 [trunk:INFO] Emailing "trunk Build Failed" to ....
2009-11-10 11:26:55,506 [trunk:INFO] Integration complete: Failure - 10/11/2009 11:26:48

Any ideas to where to look at would be appreciated!!

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It's very hard to track down issues like this when the whole build process is done via a single CCNET task like this. It may not be an option, but I would recommend splitting the build process out from the single .bat file, and create separate CCNET tasks - it will make it much easier to see what is going on when things starting behaving oddly.

e.g. separate tasks for:

• msbuild
• fxcop
• dbscripts
• tests

If the problem is within the tests somewhere, that would soon become obvious as the tests task would fail but the other 3 would have succeeded.

Other than that, I'd suggest trying to log debug/progress info out along the way - trying to find the point at which it actually fails and go from there

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Try running the console version of CCNET and enable DEBUG logging.

• If this also succeeds then you have something in your build script that the service is not allowed to do.
• If not then it should at least make the problem easier to diagnose.