[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Chris
Chris added the comment: Ugh, a server reboot seems to have cleared this all up (FML). It's been running well past the point of previous failure. I suppose I'll never know why it was failing. I'm going to close this out. Thanks for your time in helping me think this through. -- re

[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Chris
Chris added the comment: Also, when I said "...that tracebacks will now flow up to the main process from the worker processes (which makes perfect sense, actually)", I meant to say "...that tracebacks will NOT flow up to the main process from the worker processes (which makes perfect sense, ac

[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Chris
Chris added the comment: Using top/'ps aux' is not the issue. I have code running now with the try/except. Will report back ASAP. I suspect that you're correct about something in the R pipeline failing. Hopefully, I'll get a good traceback. -- _

[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Antoine Pitrou
Antoine Pitrou added the comment: > Chris added the comment: > > That they don't appear in top. I was using that as a proxy for existence. Well, I don't know in which way you use "top", but by default it will only show you the N most CPU-consuming processes. If the R bindings, for example (he

[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Chris
Chris added the comment: That they don't appear in top. I was using that as a proxy for existence. I wrote a test case without R and realized (accidentally) that tracebacks will now flow up to the main process from the worker processes (which makes perfect sense, actually). I added explicit

[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Antoine Pitrou
Antoine Pitrou added the comment: Your report is rather ambiguous. Do you claim that said pids don't exist, or that they don't appear in "top"? Also, do you manage to reproduce without R, or do you need to use R to reproduce? I would suspect an issue (or a misunderstanding on your part) with

[issue15603] Multiprocessing creates incorrect pids

2012-08-09 Thread Chris
New submission from Chris: http://stackoverflow.com/questions/11884864/python-multiprocessing-creates-incorrect-pids Jesse Noller suggested that I submit this stack overflow as a bug so it can be examined. As the problem is kind of domain specific, it's not easy to come up with a test case th