Thank you for the reply. It appears that I had a IP address typo in one of the cache_peer lines that allowed the requests with /tst/map1 or map2 to slip bye. It appears to be working. I think you confirmed what I'm trying to do should work. One question about your last statement concerning inconsistent domain names. All requests will always start with www.example.com /.... or origin-www.example.com/..... even the ones what I'm trying to send to specific backends using the "limited" acl. Are you saying I should have the following for .4 and .5 instead of what I'm currently using? cache_peer 192.168.1.5 parent 80 0 no-query no-digest connect-fail-limit=10 weight=1 originserver round-robin cache_peer_access 192.168.1.5 allow limited cache_peer_access 192.168.1.5 allow all_requests cache_peer_access 192.168.1.5 deny all I was trying to limit the requests to .4 and .5 to only those that contained /tst/map1 or map2. I thought if I included the "allow all_requests" line in .4 and .5 it would send requests that also did not include /tst/map2 or map2. For example "origin-www.example.com/hello/test/etc" could possibly be sent to .4 and .5 as well. How do I ensure that www.example.com/tst/map1/..... and map2 only go to .4 and .5 while still correctly being consistent with the domain was you suggested. Thanks. On Fri, Aug 30, 2019, at 11:41 AM, Alex Rousskov wrote: > On 8/30/19 11:44 AM, creditu@xxxxxx wrote: > > We use several squid servers in accelerator mode for load balancing to send public requests to backend servers. The squids don't do any caching, they just forward requests to the backend. > > > > We have cache_peer directives to send the incoming requests to the backend Apache servers. What I need to do is send requests to a certain page to a specific backend server and all others to the other backends. The site has many pages, subpages etc. > > > > What I want to do is if someone requests: > > https://www.example.com/anything/anything/script.php or https://origin-www.example.com/anything/anything/etc/etc/script.php > > > > Send the request to only .1, .2,.3. > > > > If someone requests : > > https://www.example.com/anything/tst/map2/script.php or https://origin-www.example.com/anything/anything/tst/map1/etc/script.php > > > > Send that request only to .4 and .5. > > > > It seems to work most of the time, but tailing the access logs on the servers I sometimes see one of the requests for ../tst/map2/... or map1 show up on .1,.2, or .3. > > > Do Squid access logs have the corresponding records as well? What cache > peer selection algorithm does Squid record for those misdirected > transactions? > > > > Is there something I'm missing? > > Could Squid go direct to one of those origin servers (e.g., when all > eligible cache peers were down)? > > BTW, please note that your cache_peer_access rules look inconsistent: > Your cache_peer_access .1-3 rules require certain domain names but .4-5 > rules do not. This does not explain the discrepancy you are describing > above, but you may want to adjust your rules for consistency sake > (either to ignore dstdomain completely or to require correct domains for > all cache peers). > > > HTH, > > Alex. > > > > acl all_requests dstdomain -n www.example.com origin-www.example.com > > acl limited url_regex -i /tst/map1|/tst/map2 > > > > > > cache_peer 192.168.1.1 parent 80 0 no-query no-digest connect-fail-limit=10 weight=1 originserver round-robin > > cache_peer_access 192.168.1.1 deny limited > > cache_peer_access 192.168.1.1 allow all_requests > > cache_peer_access 192.168.1.1 deny all > > > > cache_peer 192.168.1.2 parent 80 0 no-query no-digest connect-fail-limit=10 weight=1 originserver round-robin > > cache_peer_access 192.168.1.2 deny limited > > cache_peer_access 192.168.1.2 allow all_requests > > cache_peer_access 192.168.1.2 deny all > > > > cache_peer 192.168.1.3 parent 80 0 no-query no-digest connect-fail-limit=10 weight=1 originserver round-robin > > cache_peer_access 192.168.1.3 deny limited > > cache_peer_access 192.168.1.3 allow all_requests > > cache_peer_access 192.168.1.3 deny all > > > > cache_peer 192.168.1.4 parent 80 0 no-query no-digest connect-fail-limit=10 weight=1 originserver round-robin > > cache_peer_access 192.168.1.4 allow limited > > cache_peer_access 192.168.1.4 deny all > > > > cache_peer 192.168.1.5 parent 80 0 no-query no-digest connect-fail-limit=10 weight=1 originserver round-robin > > cache_peer_access 192.168.1.5 allow limited > > cache_peer_access 192.168.1.5 deny all > _______________________________________________ > squid-users mailing list > squid-users@xxxxxxxxxxxxxxxxxxxxx > http://lists.squid-cache.org/listinfo/squid-users > _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users
