[#MODPYTHON-8] Improve apache.load_module with a two-level locking scheme

mod_python

Improve apache.load_module with a two-level locking scheme

Created: 22/Jan/05 10:01 PM Updated: 02/Apr/07 11:12 AM

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Component/s:

importer

Affects Version/s:

3.1.3

Fix Version/s:

3.3.1

Time Tracking:

Not Specified

Issue Links:

dependent

This issue depends upon:

~~MODPYTHON-143~~ Implement and integrate a new module importer.

Resolution Date:

12/Aug/06 08:11 AM

Description

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We should rewrite apache.load_python with a two level locking scheme, in order to reduce thread contention when using the threading MPM.

I've already implemented something similar for a custom-made publisher system (comparable to Graham's Vampire) ; I've used a thread-safe caching system that I've donated to the Python Cookbook :

http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/302997

Maybe this should be experimented in a separate branch, and merged back once we're sure that everything works perfectly ?

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Repository	Revision	Date	User	Message
ASF	#164998	Wed Apr 27 15:53:36 UTC 2005	nlehuen	Tentative fix for ~~MODPYTHON-8~~ and ~~MODPYTHON-9~~.
				Files Changed
				ADD /httpd/mod_python/trunk/lib/python/mod_python/cache.py MODIFY /httpd/mod_python/trunk/lib/python/mod_python/publisher.py