Thank you very much Amos When sibling realtionship is configured in cache_peer without any protocols( icp/htcp), whether squid sends GET request to peers instead of ICP/HTCP requests ? Eg. cache_peer 172.16.1.10 sibling 3128 0 no-query cache_peer 172.16.1.11 sibling 3128 0 no-query Thanks -Viswa On Wed, Jul 13, 2011 at 11:03 AM, Amos Jeffries <squid3@xxxxxxxxxxxxx> wrote: > On 13/07/11 15:52, viswanathan sekar wrote: >> >> Hello All, >> >> I want to configure squid like following setup and please share your >> views to achieve it. >> >> Setup: >> >> Squid is configured as a reverse proxy with two Apache servers as >> parent. In both apache servers video content will be added >> continuously. >> >> Requirement: >> >> If the requested object is not found in the first parent(Apache1.com), >> squid must check for requested object in the second >> parent(Apache2.com). >> >> Squid.conf: >> >> cache_peer parent Apache1.com parent 80 o originserver >> cache_peer parent Apache2.com parent 80 o originserver >> > > Tricky. 404 (not found / does not exist) is a proper response supposed to be > sent to the client. It indicates that the object does not exist _at all_. > > You could work around that by making apache1 produce a 5xx code instead of > 404. That way Squid is tricked into believing the peer is broken and move on > to the next. > > Its best to split that data between the peers based on some part of the URL. > Either the subdomain name, or the top level folder of the path. That way > Squid can check for that detail and pass requests straight to the right > origin. > If they are supposed to be redundant mirrors of each other then place them > in the order you update the content. The one most likely to have content > will be checked first, and failure to find it there is a guarantee that the > other wont have it either. > > Amos > -- > Please be using > Current Stable Squid 2.7.STABLE9 or 3.1.14 > Beta testers wanted for 3.2.0.9 >
