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Squid with Tomcat not caching

Squid with Tomcat not caching

2006-12-11       - By spam@(protected)

 Back
Hello all,

I've been trying to debug a problem with caching of Tomcat requests for
a few days now, and can't seem to find an answer. Hopefully someone here
can help.

The system right now consists of Squid 2.6-stable5 on a front end server
setup as an accelerator with basic authentication, pointing at a single
backend web server. On the backend, I have both apache, and Tomcat
installed. Tomcat is version 5.5.20 with the minimal server.xml file
from the distribution.

When squid is accelerating requests routed to apache, everything works
fine. Pages and images are cached as expected.

The problem occurs when I point squid to the Tomcat server. In this
configuration, no pages are cached at all. All access requests show up
as "RELEASE -1 FFFFFFFF" in the squid store logs, which indicates that
the page isn't cacheable.

I've combed over the headers and tried turning off the jsession cookie,
adding a Cache-Control filter (Cache-Control:max-age=3600) and a bunch
of other things. At this point, I'm sure I must be missing something. I
know I can't be the only person using this configuration though. =) Any
words of wisdom would be appreciated.

Regards,
F. Potetz

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