> On 30 Aug 2019, at 6:57 am, Eric Lemings <[email protected]> wrote:
>
> Greetings all,
>
> The current mod_wsgi documentation
> <https://modwsgi.readthedocs.io/en/develop/user-guides/registering-cleanup-code.html>
> states in the "Cleanup On Process Shutdown" section that a function
> registered via the atexit module will be called during a "graceful" shutdown.
> I've tried this in mod_wsgi 3.x and it doesn't seem to work. Does this only
> apply to mod_wsgi 4.x and if so, can the same intent be satisfied somehow in
> mod_wsgi 3.x?
In principal it should work in mod_wsgi 3.X.
With any atexit handler, it can appear not to work if your program is creating
background threads and they were not created as daemon threads. They can block
process shutdown if nothing makes them stop. This is because any non daemon
threads are waited upon first, before atexit callbacks are invoked.
In this scenario, the shutdown timeout will expire and the process forcibly
shutdown.
You should enable LogLevel of info (if using err or warn) in Apache config.
When that is done, mod_wsgi should output log messages about shutdown and
whether the process had to be forcibly shutdown.
> P.S. Why am I using mod_wsgi 3.x? It's the default version that ships with
> RHEL 7.
What version of RHEL 7 are you using? RHEL has mod_wsgi 4.5.? at least.
Graham
--
You received this message because you are subscribed to the Google Groups
"modwsgi" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/modwsgi/2A943458-7080-4F82-B4B9-58FD9F6DD95A%40gmail.com.
