I use Ganglia, gmetric and a php script to read a log pipe and send the averages every minute. i'm trying to add a bit more stuff to it like response counts per response type. once i have it ill see if i can post there out there. im sure it would be pretty easy to port to other graphing systems
On Jan 14, 2010, at 8:47 AM, Gabriel Sosa wrote: > Sorry for this off topic too > > but we use munin to create charts and I was looking a plugin for > haproxy, what are you using for this? > > thank you > > On Thu, Jan 14, 2010 at 2:18 PM, Bart van der Schans > <[email protected]> wrote: >> Hi Jose, >> >> A bit off topic, but may I ask how you created that nice graph? >> >> Bart >> >> >> On Thu, Jan 14, 2010 at 4:12 AM, Jose Avila(Tachu) <[email protected]> >> wrote: >>> I have a theory on a recent issue i've been experiencing for the last 2 >>> days that i would like some clarification on. >>> I have a load balancer with 30 backend servers with a roundrobin balance >>> line and a maxconn per server of 75. from my understanding is that the >>> round robing will go in turns one by one. once the balancer starts to queue >>> up ej reaches maximum of 75 requests on all servers. will the queue wait >>> for the next available server on the stack or will it wait for the actual >>> server that was next in turn ?? if so 1 slow request that takes 6 seconds >>> would mean that ever single request in the queue will take at least 6 >>> seconds even if the server response time for all those queued up requests >>> once server would be say 200ms causing a snowball effect of slow requests? >>> >>> Am i seeing this right? and if so would it be better to avoid this issue to >>> change my balance to leastconn so it takes the next avaiable one instead of >>> waiting for the next in the round robin?? >>> The issue you see at around 11:45 was me changing the max conn per server >>> from 75 to 300 affectively clearing the queue increaseing the avg server >>> response time from 1s to about 4 secons but overall dropping my total >>> response time to client to about 4 seconds >>> Here is a sample graph >>> >>> >> >> > > > > -- > Gabriel Sosa > Si buscas resultados distintos, no hagas siempre lo mismo. - Einstein >
