I have a service based on parsing apache access logs, so I need to log there even when Vanish is turned on.
No I just simply tell Varnish to do not cache specific urls:
if (req.url ~ "(foo|bar)")
return(pass);
}
But it's heavy on resources and it should be cached. Is there any posibility to log a request on apache access log when Varnish returns a cached copy to client?
why not just use varnishes logger up front and add to the log on varnish if it was a hit or a miss
https://www.varnish-cache.org/docs/trunk/reference/varnishncsa.html
Look at the following
%{X}x
Extended variables. Supported variables are:
Varnish:time_firstbyte
Time to the first byte from the backend arrived
Varnish:hitmiss
Whether the request was a cache hit or miss. Pipe and pass are considered misses.
Varnish:handling
How the request was handled, whether it was a cache hit, miss, pass, pipe or error.
VCL_Log:key
Output value set by std.log("key:value") in VCL.
By default it'll send everything to stdout.. but you can redirect it
