[uWSGI] Problem with multiple processes with httplib.HTTPConnection?

Alan Castro alanclic at gmail.com
Tue Nov 9 18:34:38 CET 2010

I just deployed with the current version of mercurial and when i use -T
option my app won't work. (without -T it works)

The "ready_to_reload..." is a normal debug info?



On Tue, Nov 9, 2010 at 3:05 PM, Roberto De Ioris <roberto at unbit.it> wrote:

> Il giorno 09/nov/2010, alle ore 17.39, Alan Castro ha scritto:
> > Roberto,
> >
> > I'm still facing this problem.
> >
> > Let me context my problem: I developed a Pylons application (which is
> multithreaded, each request fires up a new thread) and is working fine
> (deployed with uwsgi with one process). When I run it on a multiprocess with
> uwsgi eveything goes out of control and I keep getting this Oracle error
> TNS: Bad packet, which looks like problem with my sqlalchemy session object.
> >
> > I know this runs a bit out of uwsgi context, but do you know how much
> uwsgi multiprocess environment affects pylons multithreaded? In my head
> everything should work fine.
> >
> I suppose that your app generate a new python thread at every request that
> do something in the background and pass data to the "main" thread that will
> send the response to the webserver; in this case, have you enabled the -T
> option ?
> Without it the GIL is not initialized and i do not know what could happen
> :)  If instead your app generate a new thread that "alone" manages the whole
> request
> (so the thread itself generate the wsgi response) this will cause all sort
> of problems, as the current uWSGI stable releases are not multithreaded (you
> have to use
> a 0.9.7-dev release from mercurial repository)
> --
> Roberto De Ioris
> http://unbit.it
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> uWSGI at lists.unbit.it
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