[squid-users] can't get squid to cache

Hey guys,

I've got a proprietary web application what we use as a back end for
other applications, and I want to do some agressive caching using squid,
as a test, to reduce the load on the back end.

I spent 2-3 days on googling and reading the archives, but nothing I do
or try seems to help! :(

Here's the original back-end request (for one image in that app):

------------------------------------
[angelo_at_zvr-web-04 ~]$ wget -S --spider
http://10.94.206.34:8000/stats_components/collapseon.gif
--00:19:07-- http://10.94.206.34:8000/stats_components/collapseon.gif
             => `collapseon.gif'
Connecting to 10.94.206.34:8000... connected.
HTTP request sent, awaiting response...
    HTTP/1.0 200 OK
    Content-Type: image/gif
    Content-Length: 64
Length: 64 [image/gif]
200 OK
------------------------------------

As you can see, it's missing all cache headers, and expires and
last-modified header.

This is how my squid config is (now running on 2.6STABLE16, tried on
3.0RC1 too):

------------------------------------
hierarchy_stoplist cgi-bin
acl QUERY urlpath_regex cgi-bin

shutdown_lifetime 1 second

acl all src 0.0.0.0/0.0.0.0
cache allow all

#400GB disk cache
cache_dir ufs /usr/local/squid/cache 409600 16 256

maximum_object_size 5 MB
cache_mem 1024 MB
cache_swap_low 90
cache_swap_high 95
maximum_object_size_in_memory 512 KB

cache_replacement_policy heap LFUDA
memory_replacement_policy heap LFUDA

http_port 8000 vhost vport
cache_peer 10.94.206.34 parent 8000 0 no-query originserver

http_access allow all

minimum_expiry_time 3600 seconds
refresh_pattern . 3600 100% 3600 ignore-no-cache ignore-reload
override-expire override-lastmod

access_log /var/log/squid/access.log squid
cache_log /var/log/squid/cache.log
cache_store_log /var/log/squid/store.log

strip_query_terms off
------------------------------------

This was the most agressive config I could found, and I expect the
refresh_pattern line to force squid to cache..

But all my access.log file keeps saying is:
------------------------------------
1215555215.645 1 127.0.0.1 TCP_MISS/200 200 HEAD
http://localhost:8000/stats_components/collapseon.gif -
FIRST_UP_PARENT/10.94.206.34 image/gif
1215555217.096 92 127.0.0.1 TCP_MISS/200 200 HEAD
http://localhost:8000/stats_components/collapseon.gif -
FIRST_UP_PARENT/10.94.206.34 image/gif
1215555217.940 1 127.0.0.1 TCP_MISS/200 200 HEAD
http://localhost:8000/stats_components/collapseon.gif -
FIRST_UP_PARENT/10.94.206.34 image/gif
1215555218.718 2 127.0.0.1 TCP_MISS/200 200 HEAD
http://localhost:8000/stats_components/collapseon.gif -
FIRST_UP_PARENT/10.94.206.34 image/gif
------------------------------------

And in the store.log:
------------------------------------
1215555215.645 RELEASE -1 FFFFFFFF 98DDCD4857BAF3122EE99EB25E4C3800 200
         -1 -1 -1 image/gif 64/0 HEAD
http://localhost:8000/stats_components/collapseon.gif
1215555217.096 RELEASE -1 FFFFFFFF A3AE2ED993B031DBD93CF74E2BD64BC5 200
         -1 -1 -1 image/gif 64/0 HEAD
http://localhost:8000/stats_components/collapseon.gif
1215555217.940 RELEASE -1 FFFFFFFF FFFE8387EBAB471EC045EFA51F9AE472 200
         -1 -1 -1 image/gif 64/0 HEAD
http://localhost:8000/stats_components/collapseon.gif
1215555218.718 RELEASE -1 FFFFFFFF EA490C98564ABDF390D216E2C3DC210E 200
         -1 -1 -1 image/gif 64/0 HEAD
http://localhost:8000/stats_components/collapseon.gif
------------------------------------

Does anyone ave any idea's on why Squid won't cache the requests?

--
Met vriendelijke groet,
Angelo Hongens
The Netherlands