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Sametime clustering, two left feet and no toes


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I have the pleasure of working with a large-scale Domino deployment that also uses Sametime.  Now they are quite possibly the largest Java Connect deployment i have heard of, anywhere.  Without going into any issues they have fought and overcome (and the ones still left), the goal here is to build a chat cluster, leaving the Meeting Server for later.

After some brief time of just getting to know more particulars about their Sametime environment, we got right into it.  Look for some tips as we move along the next couple days.  For starters, most of you already know how important DNS is to Sametime.  It becomes even more important as you deploy some sort of load balancer.  Note I said load balancer and not round-robin DNS entries.  There is no heartbeat or knowledge of a server being down in that approach and ultimately, the scaling and deployment will fail miserably.  So they were well prepared with a hardware load balancer solution in place.  But, due to DNS update times, we got most of the cluster built, documents created and servers ready and had to wait till tomorrow for a move of some DNS names.

I will cover the document building in the next post, my Chimichanga is here.