Hi, We're using varnish and also would very much like to have the stale-while-revalidate feature that's been discussed on this list, wherein the first request for an expired object during the grace period gets served the stale content vs. waiting for the fresh content, and a background thread is spawned to asynchronous refresh the cache. Like others, we've got some slow backend servers that really penalize the poor users who have to wait for them when the cache is expired, and the various workaround options we've explored are quite hacky.
I saw in https://www.varnish-cache.org/lists/pipermail/varnish-misc/2012-June/022104.html that this feature might be coming. Is this looking like it's going to make it into the next stable release? thanks much, Chris
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