Hi Henrik, Thanks for the response. Also , should the squid server with the below configuration be made not to cache anything fetched from the parent caches by specifying "proxy-only" option ? Is that something that a CARP setup demands? How do I make a particular request be forwarded to a particular parent cache ? Thank you. -Paras On Mon, Oct 13, 2008 at 7:18 PM, Henrik Nordstrom <henrik@xxxxxxxxxxxxxxxxxxx> wrote: > Most likely your proxy is not allowed to access the parent. > > > On mån, 2008-10-13 at 17:42 +0530, Paras Fadte wrote: >> Hi Henrik, >> >> I am getting access control list error when squid makes requests to a >> parent cache. >> >> cache_peer parent1.com parent 11000 0 no-query carp weight=2 >> cache_peer parent2.com parent 12000 0 no-query carp weight=1 >> cache_peer origin.com parent 3000 0 originserver default >> >> prefer_direct off >> >> >> parent1 and parent2 are able to contact origin server and fetch the >> content when a request is made to them directly but when the request >> is made to the squid server with above configuration which in turn >> makes a request to parent caches first , I get an access control list >> error. >> >> Any help in this regard would be appreciated and thanks in advance. >> >> -Paras >> >> >> >> >> >> On Mon, Oct 13, 2008 at 9:44 AM, Paras Fadte <plfgoa@xxxxxxxxx> wrote: >> >> >> > Thanks Henrik. >> > >> > On Sat, Oct 11, 2008 at 1:39 AM, Henrik Nordstrom >> > <henrik@xxxxxxxxxxxxxxxxxxx> wrote: >> >> On fre, 2008-10-10 at 16:40 +0530, Paras Fadte wrote: >> >> >> >>> How do I setup CARP in squid ? Whats a typical setup like ? >> >> >> >> Squid only support CARP parents, that is a Squid parenting with a CARP >> >> like array of Squid servers. >> >> >> >> Intra-array CARP routing is not supported (where members of a CARP array >> >> direct incoming requests to the correct array member within the same >> >> CARP array). >> >> >> >> A typical setup using CARP with Squid is a two layer Squid structure >> >> with N frontend nodes getting requests from users, and N backend nodes >> >> doing the bulk of the caching. The frontend nodes route requests to the >> >> backend nodes using CARP to optimize cache utilization and avoiding >> >> duplicate storage without the need of spending time on query protocols >> >> like ICP or HTCP. >> >> >> >> Regards >> >> Henrik >> >> >> > >