[uWSGI] Request blocking when using uwsgi+gevent+gevent.subprocess

Roberto De Ioris roberto at unbit.it
Wed Oct 23 19:56:31 CEST 2013

> Hi,
> I wonder if this is a uwsgi or gevent issue, and if there are any
> solutions
> to it.
> When launching a gevent subprocess in a background greenlet, the request,
> which spawned the subprocess, is not properly closed, and is not released
> until the subprocess is over.
> All other requests work fine, and are not blocked.
> Here's a working gist with configs
> launched on Ubuntu 12.04, uwsgi, gevent 1.0rc2
> https://gist.github.com/ikatson/7a290f4e1357fb388f07
> This behavior can be worked around sometimes by, e.g. inserting
> time.sleep() into the subprocess thread, so that when the request returns,
> the time.sleep() call is not yet over. Then it works fine. But it's very
> hacky.
> Thanks!

Adding --close-on-exec to uWSGI should fix your issue:


Roberto De Ioris

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