Thanks Raymond. If we don't hear any views to the contrary from Varnish themselves, we'll go with the standard approach of using obj.hits
Regards, Umesh From: "<Jennings III>", Raymond <[email protected]<mailto:[email protected]>> Date: Thursday, 2 April 2015 13:38 To: Umesh Telang <[email protected]<mailto:[email protected]>> Cc: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Subject: Re: Determining a HIT or a MISS in Varnish 4 VCL I think that's the way - exactly as you have in vcl_deliver. I've always used that in V3 and now in V4 as well. I'm suspect of that page telling you to not use obj in vcl_deliver but use that header value instead. Raymond Jennings III nytimes.com<http://nytimes.com/> Office: 212.556.7786<tel:212-556-7786> iPhone: 914.330.5074<tel:914-330-5074> E-mail: [email protected]<mailto:[email protected]> FaceTime: [email protected]<mailto:[email protected]> On Thu, Apr 2, 2015 at 8:28 AM, Umesh Telang <[email protected]<mailto:[email protected]>> wrote: Hello, It's unclear if the way to detect whether a particular response was the result of a cache hit or miss in VCL, has changed from Varnish 3 to Varnish 4. At this page (not an official Varnish page...), it suggests using the value of resp.http.X-Varnish (whether it has a single or multiple values) to determine this: http://foshttpcache.readthedocs.org/en/latest/varnish-configuration.html# Alternatively I've also seen suggestions for continuing to use obj.hits in vcl_deliver. e.g. : sub vcl_deliver { if (obj.hits > 0) { # Add debug header to see if it's a HIT/MISS and the number of hits, disable when not needed set resp.http.X-Cache = "HIT"; } else { set resp.http.X-Cache = "MISS"; } } We've observed that the value of %{Varnish:handling}x in the varnish ncsa log has been accurate in reporting HITs vs MISSes. Could we use a VCL equivalent of this in vcl_deliver to determine whether a particular response is the result of a HIT or a MISS? Any advice on the recommended way in VCL to determine whether a response is the result of a HIT or MISS would be greatly appreciated! Thanks, Umesh _______________________________________________ varnish-misc mailing list [email protected]<mailto:[email protected]> https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
_______________________________________________ varnish-misc mailing list [email protected] https://www.varnish-cache.org/lists/mailman/listinfo/varnish-misc
