Bug 1004381

Summary: [Beaker] backend.twisted emit: ERROR Unhandled error in Deferred:
Product: [Retired] Beaker Reporter: PaulB <pbunyan>
Component: beahAssignee: Amit Saha <asaha>
Status: CLOSED CURRENTRELEASE QA Contact: tools-bugs <tools-bugs>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 0.14CC: aigao, asaha, bpeck, dcallagh, ebaak, jburke, jstancek, llim, pbunyan, qwan, rmancy, xjia
Target Milestone: 0.14.3   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-12-19 06:11:14 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Comment 3 Amit Saha 2013-10-24 03:36:46 UTC 
When there are no remaining tasks, a NothingToDoException is raised in beakerlc.py:

 raise NothingToDoException("No more tasks in recipe.")

So it seems that the second point in the answer here [1] may have a clue.
[1] http://stackoverflow.com/questions/3826233/twisted-no-exception-trace-if-error-from-a-callback
Comment 5 Amit Saha 2013-11-01 06:41:17 UTC 
(In reply to Amit Saha from comment #3)
> When there are no remaining tasks, a NothingToDoException is raised in
> beakerlc.py:
> 
>  raise NothingToDoException("No more tasks in recipe.")

http://gerrit.beaker-project.org/#/c/2442/
Comment 7 Amit Saha 2013-11-05 04:05:35 UTC 
Verification suggestions:

To verify this bug, you will have to monitor the console.log (if running in an environment where conserver is set up properly), or stare at the console.

If you are running only the /distribution/install, the console logs should not contain any "ERROR unhandled.." messages after the task is complete and just before the machine is turned off.

If you are running only the /distribution/install and reservesys task, the console logs should not contain any "ERROR unhandled.." messages after you execute 'return2beaker.sh'.

PS: Note that there are other messages from Twisted that will be all over, so, you have to be careful (not applicable if console.log is available).