Cascading Caches, honor Age Header
fragfutter at gmail.com
Fri Jul 6 13:25:12 CEST 2007
When i cascade varnish in front of a squid (didn't test varnish in
front of varnish) it won't honor the Age Header sent from the squid.
If the Squid sends me
Date: Fri, 06 Jul 2007 11:08:20 GMT
Expires: Fri, 06 Jul 2007 11:13:20 GMT
varnish should start with an initial Age of 100. This way i could keep
the expiration of multiple varnish instances in sync.
it might be possible to use the new features mentioned in "New VCL
toys". So after fetching a object from the backend, before storing it
set obj.age = now - obj.date
supposing the time on varnish and backend server is in sync.
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