I have squid 2.6.20 running on centos, reverse-proxying for dynamic
content...but items are not getting cached. I've run a similar
http-accel setup with 2.5 at least a year back and didnt have this
problem...has something changed since then?
I've checked the headers from the origin servers, and all the reply
text/xml is pretty standard and cacheable. Only tweaked header is the
expire time, which is set by the origin to be 5 minutes.
Request uri's are long, i.e.
/sd/api/somethingservice/9.99/totallyFakeStrings?PID=wsC5tRszzna55EgsS2m1Jpua9-Xbb-FTIh7EDiZd%19endItAll=39
access.log is full of TCP_MISS and UDP_MISS...with heavy load tests I
see some TCP_MEM_HITS, but the only TCP_HITS I see are related to
siblings requesting digests. store.log is full of RELEASE's and
devoid of SWAPOUTs :(
Here are relevant portions of my config:
http_port 80 accel vhost defaultsite=my.server.wherever.com
icp_port 3130
cache_peer 9.9.9.9 parent 80 0 no-query originserver name=HostAccel
cache_peer 1.1.1.2 sibling 80 3130 proxy-only
cache_peer 1.1.1.3 sibling 80 3130 proxy-only
cache_dir aufs /cache1 8192 16 256
cache_dir aufs /cache2 8192 16 256
cache_dir aufs /cache3 8192 16 256
cache_dir aufs /cache4 8192 16 256
store_dir_select_algorithm round-robin
refresh_pattern . 0 20% 4320
acl our_site dstdomain my.server.wherever.com
acl all src 0.0.0.0/0.0.0.0
acl origin dst 9.9.9.9
acl siblings src 1.1.1.2 1.1.1.3
acl acceleratedPort port 80
cache allow all
http_access allow our_site
http_access allow origin acceleratedPort
http_access allow siblings
http_access deny all
http_reply_access allow all
icp_access allow siblings
icp_access deny all
visible_hostname my.server.wherever.com
unique_hostname squid01
client_db off
uri_whitespace allow
strip_query_terms off
relaxed_header_parser warn
icp_query_timeout 500
Can anyone tell me why nothing seems to be getting cached? Is there
an inherent rejection of dynamic content now? I hope not, some of us
rely on caching systems to smooth out the spikes in demand on our web
services :)
Thanks in advance,
- G
