I think you need to close the connection after each health check. Otherwise mongrel/rails is going to block. (If my understanding is correct.
Try the following health check and let me know how it works out: "GET / HTTP/1.1\nHost: \nConnection: Close\n On 8/10/07, Christopher Bailey <[EMAIL PROTECTED]> wrote: > If this has already been covered, please point me to that (I didn't find > anything in my searches)... > > We are using F5 BigIP LTM load balancers. They have many pools of Mongrels > they load balance across, and I of course want the F5 to know when a Mongrel > goes down or is unavailable, etc. To do that, I need to have an F5 health > monitor for HTTP make a request to the Mongrel. We do this same thing with > our Nginx servers, and that works fine, but with Mongrel it doesn't. I am > wondering if anyone is successfully monitoring Mongrel instances from an F5? > > > As further info... I've been working with F5 tech support on this, and > we're both stumped at the moment. The same HTTP monitor works fine with > Nginx. Both try to fetch the same HTML file. Also, if I am ssh'ed in to > the F5, and do a telnet to one of the Mongrels and do "GET /heartbeat.html > HTTP/1.1", followed by two returns, this works fine. I use that same string > (and two \n's) in my F5's send string for it's HTTP monitor. According to > F5 who looked at our tcpdump, the Mongrel just never responds (but in the > same dump, they see the direct telnet version respond fine). The F5 makes a > direct TCP request to do this. > > Any ideas? Suggestions? Known issue? Workarounds? Anyone successful with > this type of setup? > > As an FYI, our system info: > > CentOS 5, nearly all up to date, 64bit, Core 2 Duo processor > Mongrel 1.0.1 > Mongrel Cluster 1.0.2 > Ruby 1.8.5 (2006-08-25) [x86_64-linux] > > F5 BigIP LTM, currently running 9.1.2 (working on moving to 9.3) > > > _______________________________________________ > Mongrel-users mailing list > Mongrel-users@rubyforge.org > http://rubyforge.org/mailman/listinfo/mongrel-users > _______________________________________________ Mongrel-users mailing list Mongrel-users@rubyforge.org http://rubyforge.org/mailman/listinfo/mongrel-users
