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From Zachary Miller <zacharymmil...@gmail.com>
Subject Re: Cache Behavior: not caching all responses
Date Wed, 07 Apr 2010 02:44:13 GMT
Thanks a lot, Eric.

This was immensely helpful.  It looks like my problem was the lack of
cache-control headers on most of the pages I was testing.  I changed the
'proxy.config.http.cache.required_headers' to zero and I'm caching
everything now.

Thanks again,

Zach

On Tue, Apr 6, 2010 at 4:20 PM, Eric Balsa <ericb@apache.org> wrote:

> Hi Zachary,
>
> The headers returned by that server are below.
>
> I am not sure if TS honors the no-cache="set-cookie" bit but
> Pragma:no-cache is probably troublesome.
>
> Run ATS like this:
>
> /path/to/trafficserver -T "http_trans" and issue a single request for
> this content, something like:
>
> curl -D- -x localhost:8088
> http://www.dickssportinggoods.com/product/index.jsp?productId=2805051
>
> The debugging output from TS should provide some information as to why
> the content is not being cached; specifically a debug line like:
>
> [Apr  6 17:14:34.255] Server {140735072537568} DEBUG: (http_trans)
> [is_response_cacheable] server does not permit storing and config file
> does not indicate that server directive should be ignored
>
> --Eric
>
> HTTP/1.1 200 OK
> Date: Tue, 06 Apr 2010 23:00:42 GMT
> Server: Apache/2.0.63 (Unix)
> Cache-Control: no-cache="set-cookie"
> Pragma: no-cache
> P3P: CP="PHY ONL CAO CURa ADMa DEVa TAIa PSAa PSDa IVAo IVDo CONo HISa
> TELo OTPo OUR DELa STP BUS UNI COM NAV INT DEM
> OTC",policyref="/w3c/p3p.xml"
> Set-Cookie:
> JSESSIONID=mzLQL79h1SwMzbsq4m5zFPy81n4mGnJTfCkGjNYvryDPPCGSYWzL!1750437349;
> path=/
> Set-Cookie: browser_id=93564493173; expires=Friday, 03-Apr-2020
> 23:00:42 GMT; path=/
> Set-Cookie: browser_id=93564493173; expires=Friday, 03-Apr-2020
> 23:00:42 GMT; path=/
> Set-Cookie: browser_id=93564493173; expires=Friday, 03-Apr-2020
> 23:00:42 GMT; path=/
> Set-Cookie: rvdata=XR78594654105c421a0f4f1a175b0a0a0304;
> expires=Monday, 25-Apr-2078 02:14:49 GMT; path=/
> Set-Cookie: browser_id=93564493173; expires=Friday, 03-Apr-2020
> 23:00:42 GMT; path=/
> Set-Cookie: browser_id=93564493173; expires=Friday, 03-Apr-2020
> 23:00:42 GMT; path=/
> X-Powered-By: Servlet/2.5 JSP/2.1
> Vary: Accept-Encoding
> X-UA-Compatible: IE=EmulateIE7
> Connection: close
> Transfer-Encoding: chunked
> Content-Type: text/html; charset=ISO-8859-1
>
> On Tue, Apr 6, 2010 at 4:50 PM, Zachary Miller <zacharymmiller@gmail.com>
> wrote:
> > Hi,
> > I am having some trouble getting Traffic Server to cache all of the
> content
> > that it encounters.  For instance, when I inspect the cache none of the
> > following URLs appear:
> >
> > 1270592980.711 398 192.168.215.92 TCP_MISS/200 19711 GET
> > http://www.dickssportinggoods.com/product/index.jsp?productId=2805051 -
> > DIRECT/www.dickssportinggoods.com text/html -
> > 1270592980.876 323 192.168.215.92 TCP_MISS/200 19458 GET
> > http://www.dickssportinggoods.com/product/index.jsp?productId=2805083 -
> > DIRECT/www.dickssportinggoods.com text/html -
> > 1270592981.051 388 192.168.215.92 TCP_MISS/200 19811 GET
> > http://www.dickssportinggoods.com/product/index.jsp?productId=3801787 -
> > DIRECT/www.dickssportinggoods.com text/html -
> >
> > There are thousands more like that (and this is after I have already run
> > through all of these URLs previously), and none of them have been cached
> (or
> > at least none of them appear when searched for), even though they are
> > definitely running through Traffic Server (the above URLs come directly
> from
> > squid.log).  JavaScript and other types of content are being served
> > (ex: http://www.dickssportinggoods.com/foresee/foresee-alive.js), but
> not
> > the text and html documents.
> > I have the records.config setting 'CONFIG
> > proxy.config.http.cache.cache_urls_that_look_dynamic INT 1' set.
> > I'm suspecting that I'm missing something very obvious in the
> configuration,
> > and attached is my records.config.
> > I would really appreciate the help and am nearly at wits end on this.
> > Thanks so much in advance,
> > Zachary
> >
> >
>

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