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
