LVS, pound, perlbal, HAproxy, varnish, Zeus. I've heard many good things. Some do reverse proxy caching and also direct traffic, some dont. I may have missed some. ATS is a new suite, but if its good enough for Yahoo!, well ...
Those are all software. You could opt for dedicated hardware for this, such as entry-level NetScalers or f5s (1500 LTMs are pretty cheap). I say that as they have ASICs onboard which will smoke software solutions depending on how large your crypto load is for your ssl offloading. Sorry I cant offer a 'pick this one!' post, but I hope this helps. We live in interesting times for web HA. NB: I've heard good things of Zeus, but I'm unsure if its libre. I know they sell a suite with support for certain. Sent from my iPhone On Jul 29, 2010, at 9:46 PM, Paul Graydon <[email protected]> wrote: > Hi all, > > We use a pair of servers as load balancers, using Apache HTTPD & > mod_proxy. Ideally I'm looking to transition away from Apache HTTPD if > possible and on to something a little less resource hungry and > specifically designed for the role. It's going to have to be a slow > transition because we're combining multiple aspects in httpd, such as > LDAP auth, rewrites, some direct PHP hosting and captcha bits, for just > over 60 vhosts. > > What I'm looking at at the moment is to stick something flexible, > caching (to reduce back end traffic) and capable of reverse proxying in > front of httpd. The idea being to initially proxy through to httpd on > the same box and then over a period of time have vhosts migrated over to > it much as possible. It does also need to produce NCSA or Apache httpd > compatible logs for urchin processing. > > I've been experimenting with Varnish to varying levels of success, > combined with Pound acting as an SSL intermediary, but some former > colleagues from a previous role suggest I consider Apache Traffic > Server. The blurb on the website looks very interesting, but unlike > Varnish I've not heard much from sysadmins about having actually used it. > > Does anyone have any recommendations or thoughts about ATS vs Varnish, > or thoughts about other products that may be more suited? > Am I about to unleash a whole world of hurt on myself? > > Paul > _______________________________________________ > Tech mailing list > [email protected] > http://lopsa.org/cgi-bin/mailman/listinfo/tech > This list provided by the League of Professional System Administrators > http://lopsa.org/ _______________________________________________ Tech mailing list [email protected] http://lopsa.org/cgi-bin/mailman/listinfo/tech This list provided by the League of Professional System Administrators http://lopsa.org/
