Is cache keys using Vary headers available in Squid 3.1. Is there
something I need to enable?
Jeff
On Tue, Feb 8, 2011 at 10:30 AM, Jeff Gerbracht <jeffgerbracht@xxxxxxxxx> wrote:
> Hmmm, I have Vary Accept Language added now to the response header
> but I'm still getting a cache hit, even when I change browser
> language. Below is still returning a cache hit of the English
> version of the page, which was previously cached by Squid.
>
> Response Headers
> Date Tue, 08 Feb 2011 15:26:23 GMT
> Server Apache-Coyote/1.1
> Cache-Control no-cache
> Expires 0
> Pragma no-cache
> Content-Type text/html
> Age 25
> X-Cache HIT from crane.ornith.cornell.edu
> Via 1.0 crane.ornith.cornell.edu (squid/3.1.10)
> Warning 110 squid/3.1.10 "Response is stale"
> Vary Accept-Language
> Connection close
> Transfer-Encoding chunked
>
> Request Headers
> Host gbbc.birdsource.org
> User-Agent Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
> rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13 (.NET CLR 3.5.30729)
> Accept text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
> Accept-Language fr-ca,en-us;q=0.8,es-mx;q=0.6,en;q=0.4,es;q=0.2
>
> On Mon, Feb 7, 2011 at 11:42 PM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote:
>> On 08/02/11 15:12, Jeff Gerbracht wrote:
>>>
>>> I'm trying to set up squid to cache several of our dynamic pages for
>>> which we have both EN and FR translations. We use the browser setting
>>> for language to determine which language to return to the user so the
>>> URL is the same for both languages. Is there any way to enable Squid
>>> 3.1 to use the URL in combination with the accept-language from the
>>> header to generate the cache key. Currently, whichever language is
>>> first requested is what is returned by a cache hit. We have apache in
>>> front of squid so if squid can't do what we need, any suggestions on
>>> how to work with apache and squid in combination to cache both the
>>> english and french versions of a page.
>>
>> Squid does not (yet) support that find-grained level of smart variant
>> handling. It will happily cache variants on the full-text of the named
>> headers though.
>>
>> What you need to do is specify the language variance in the same way you
>> specify compressed/non-compressed variance.
>>
>> Sent from the web server:
>> Vary: Accept-Language
>>
>> (it may need combining with the existing Vary header values, probably to
>> "Vary: Accept-Language, Accept-Encoding")
>>
>> With a ETag header as well wherever possible.
>>
>> Amos
>> --
>> Please be using
>> Current Stable Squid 2.7.STABLE9 or 3.1.10
>> Beta testers wanted for 3.2.0.4
>>
>
>
>
> --
> Jeff Gerbracht
> Lead Application Developer
> Neotropical Birds, Breeding Bird Atlas, eBird
> Cornell Lab of Ornithology
> 607-254-2117
>
--
Jeff Gerbracht
Lead Application Developer
Neotropical Birds, Breeding Bird Atlas, eBird
Cornell Lab of Ornithology
607-254-2117
