• Pål Hermunn Johansen's avatar
    Reintroduce the req.grace variable, change keep behavior · ff38535a
    Pål Hermunn Johansen authored
    The req.grace variable can be set in vcl_recv to cap the grace
    of objects in the cache, in the same way as in 3.0.x
    
    The "keep" behavior changes with this patch. We now always go
    to vcl_miss when the expired object is out of grace, or we go
    to the waiting list. The result is that it is no longer
    possible to deliver a "keep" object in vcl_hit.
    
    Note that when we get to vcl_miss, we will still have the 304
    candidate, but without the detour by vcl_hit.
    
    This commit changes VCL, but only slightly, so we aim to back
    port this to earlier versions of Varnish Cache.
    
    Refs: #1799 and #2519
    ff38535a
b00062.vtc 1.56 KB