Olaf, Usually we use Direct Routing mode with proxies(squids) because it is:
a) source ip transparent b) return traffic doesn't need to go via the load balancer c) its fast 2009/6/24 Olaf Krische <[email protected]> > > Hello, > > i want to put a loadbalancer in front of several squids, which cache output > of content generators. > > The first option is to use the apache/mod_proxy/mod_balancer combination. > Thats easy to configure, you even have a little backend to disable > BalancerMembers manually and also i dont need any special network > configuration. We are quite happy with it. Its simple > > But there is this overhead of interpreting the content and to manage the > connections. > > So the second option would involve IPVS, which just rewrites the packes and > forwards them to a chosen BalancerMember. > > There are two ways: > > A) IPVS behaves like mod_proxy, the chosen Member will see a request coming > from the LoadBalancer's LAN-IP. > > Bad: I lose the client IP on the Member/real server (in mod_proxy i have at > least "X-Forwarded-For") > > B) IPVS forwards the packet to the chosen Member. The source address is > unchanged. > > Bad: I need to change the default route, so that answers always go back > through the LoadBalancer. This complicates the otherwise so simple network > setup. People need to know about IPVS. Its not so obvious and self > explanatory. > > So the question: Is IPVS worth the trouble? > > Or is this an exaggeration, when i say apache/mod_proxy uses way more > resources? > > What would you say? > -- > View this message in context: > http://www.nabble.com/ipvs-or-apache-mod_proxy-mod_balancer-tp24184926p24184926.html > Sent from the LVS mailing list archive at Nabble.com. > > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [email protected] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users -- Regards, Malcolm Turnbull. Loadbalancer.org Ltd. Phone: +44 (0)870 443 8779 http://www.loadbalancer.org/ _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
