id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
4831	"Adding ""add"" support to the cache API"	crazyal	nobody	"The Django system has a ""set"" function for the cache backend which works with memcached which also has a ""set"" function.
But memcached also has an ""add"" function which the Django cache backend doesn't seem to support.

The ""add"" function becomes important with high traffic sites. If alot of requests are coming to the server and wanting to rebuild the cache, using ""set"" means each request will effectively try and set the cache which becomes  a problem. The ""add"" function means it will only add the new cache if it hasn't already been added."		closed	Core (Cache system)	dev		fixed	cache memcached sprintsept14		Ready for checkin	1	0	0	0	0	0