[Buildbot-devel] buildbot doesn't fully reconfigure on SIGHUP?

[Dan Kegel]

On Wed, Oct 3, 2012 at 2:21 PM, Tom Prince <tom.prince at ualberta.net> wrote:
>> The manual claims buildbot reloads config files when you send it a SIGHUP,
>> but I'm not seeing that here.  I mean, sure, it says it's doing it, but
>> if the config file adds a new buildslave, that won't show up until
>> you actually stop the buildbot and start it again.
>> Has anyone else seen that?  I don't see an exact match in the bug tracker.
>
> My guess is that you import some file that defines the buildslaves.
>
> buildbot's reconfig is implemented by rerunning the code in the
> master.cfg file. The nature of python is such that an import only
> loads the indicated file the first time it is run (so if you change the
> file, python won't see it). This can be somewhat worked around by
> calling reload, although the behavior of that can be tricky.

Correct in one!
Following your hint, I see that
http://stackoverflow.com/questions/684171/how-to-re-import-an-updated-package-while-in-python-interpreter
lists some of the issues with reload.

I will chalk this up as another reason to rewrite our buildbot config.

Thanks!
- Dan