Greetings, On Tue, Dec 27, 2011 at 10:22:46AM -0800, Stroomer, Jeff wrote: > To make this more concrete, let's say I am using a round-robin > director to distribute traffic across three back ends named A, B, and > C, and suppose that in vcl_fetch I see a 500 response that came from > A. If I set saint mode to 20 seconds on the response, does that mean > that the object is blacklisted on A for 20 seconds, and therefore > subsequent requests for that object go to B and C? And if saint > mode subsequently also blacklists the object on B and C as well, does > that mean that grace mode kicks in, and a cached copy is returned?
Correct. > Assuming I have this right, then it sounds like the backend health > checks used by the director are a large-scale way to blacklist all > requests for a back end, whereas saint mode is a small-scale > object-by-object way to blacklist a back end. That's precisely it. I couldn't have said it better myself. - Kristian _______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
