Hey Willy, thanks for your response, answers bellow:
- Is this load stable or does it vary a lot during the test ? The load is pretty stable, it doesn't seem to go up more than .70 max - Do you have conntrack loaded on the LB ? Its installed, any specific command you want me to try? - Is the LB a real or virtual machine ? Virtual, the entire environment is virtual including the openAM servers - Are you observing a high CPU or network usage anywhere in the chain ? There is an initial spike on CPU when Jmeter starts but thats normal if you don't use a "ramp up" period - If you remove one of your servers, does the throughput remain the same or does it drop by half ? Stays exactly the same, probably because of the "sticky" session? The only thing I'm seeing that is wrong in your config is that you should remove the "option httpclose" statement in the defaults section and in the backend section, but I'm pretty sure that at such a low load, it won't make any difference. I have removed it and tested with and without it, makes no difference. The strangest thing is that it seems like you reach a limit and it wont go over 80-100 req/sec. One last thing I forgot to mention, I am testing on a hot standby HAproxy that is configured exactly as the first one and I use Keepalived for high availability, so Keepalived is the only other process running on the box. Any ideas? Thanks On Thu, Aug 16, 2012 at 1:16 AM, Willy Tarreau <w...@1wt.eu> wrote: > Hi Saul, > > On Wed, Aug 15, 2012 at 02:43:57PM -0400, Saul Waizer wrote: > > Hey list, > > > > I am having a strange issue with my latest implementation of HAproxy. I > > have 2 openAM servers (tomcat) behind my haproxy box running version > 1.4.20 > > on Ubuntu 10 X_86, all properly configured to be behind a load balancer. > I > > used Jmeter to test the openAM servers individually and both give > > consistent results of ~1600-1800 req/sec, however, when I run the same > > exact test through the HAproxy I can barely get 100 req/sec! This setup > in > > theory should allow me to double my throughput. > > Wow, 100 req/s is pretty low. Is this load stable or does it vary a lot > during the test ? Do you have conntrack loaded on the LB ? Is the LB a > real or virtual machine ? Are you observing a high CPU or network usage > anywhere in the chain ? If you remove one of your servers, does the > throughput remain the same or does it drop by half ? > > The only thing I'm seeing that is wrong in your config is that you should > remove the "option httpclose" statement in the defaults section and in the > backend section, but I'm pretty sure that at such a low load, it won't make > any difference. > > Regards, > Willy > >
