Understand "hit for pass" cache objects

Rob S rtshilston at gmail.com
Mon Feb 15 23:52:01 CET 2010

Rob S wrote:
> Justin Pasher wrote:
>> Hello,
>> Herein lies my dilemma. A request for the same URL 
>> (http://www.example.com/) is sometimes cacheable and sometimes not 
>> cacheable (it usually depends on whether it's the first time a user 
>> visits the site and the Set-Cookie header has to be sent). What this 
>> means is if I have a very heavy hit URL as a landing page from Google, 
>> most of the time there will be a "hit for pass" cache object in Varnish, 
>> since most people going to that page will have a Set-Cookie header.
> Justin,
> Rather than answer your question (which other people are answering), I'd 
> suggest you reconsider using sessions and selectively caching full 
> pages.  There are several other solutions that might work for you - for 
> example, including personalised content via ESI, or overlaying it 
> client-side with javascript.  We're using a combination of these to 
> great effect - and ensure that any page containing a session cookie is 
> never cached.
> Obviously the based 
I meant "appropriate"  - goodness knows what I was typing!

> answer would depend on the nature of your apps, but 
> it might be worth looking at in the longer term.  There's more than one 
> way to crack an egg.
> Rob
> _______________________________________________
> varnish-misc mailing list
> varnish-misc at projects.linpro.no
> http://projects.linpro.no/mailman/listinfo/varnish-misc

More information about the varnish-misc mailing list