Hi Poul-Henning, thank you for taking the time to respond.
> What happens here is that another client/thread holds this object > "busy" while it is being fetched from the backend. Once the object > is marked unbusy, the waiting threads are relased, and calls hash > again. My understanding is that the waiting sessions are re-scheduled on threads, right? > I'm not quite sure you you keep hitting it so many times, it smells > like som weird situation where the object takes a long time to fetch, > has no cacheability, but does not get marked "pass" in vcl_fetch ? I am seeing hsh_rush getting called much more often than I thought it should be and I don't yet understand why. What I would really like to see is that the waitinglist gets rescheduled when the busy object is actually becomes in the cache. I am suspecting this has to do with calling HSH_Deref(&Parent) in HSH_Unbusy and/or the fact that HSH_Drop calls both Unbusy and Deref, but I don't understand this yet. Nils _______________________________________________ varnish-dev mailing list varnish-dev@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-dev