On Fri, Aug 28, 2009 at 09:48:54AM +0100, Mike Cardwell wrote: > > I'd be wary of using memcached for greylisting. Since there's no > > guarantee that anything you put into the cache will come out again, so any > > memcached-using app should degrade gracefully if that happens. Arguably, > > yours doesn't; if memcached keeps failing to return what was put in, then > > you'll defer forever, which you don't want. > > Why would it fail to return what was put in?
Cache got full. memcached got restarted. Wind direction changed. That sort of thing. -- Dave Evans http://djce.org.uk/ http://djce.org.uk/pgpkey
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