You did not indicate which platform you were doing load balancing on, but
I think the general answer to your question is that when the new servers
are added into the rotation, new sessions will be slowly added to litl-1
and litl-2. So they will not get all the new sessions, but be brought
into the rotation gradually.
On Mon, 4 Feb 2002, Casassa, Nathan wrote:
> Here is the scenario:
> Current algorithm is leastconns, with 2 servers weighted equally with 1.
> Both servers have 100 sessions per, totaling 200 sessions. We will call them
> Big-1 and Big-2.
> With the addition of two smaller servers into the SLB group (called Litl-1
> and Litl-2) using the "weighted leastconns algorithm" by changing Big-1 and
> Big-2 to a weight of 3 and leaving Litl-1 and Litl-2 as 1, we will
> effectively give 1 out of 3 connections to Litl-1 or Litl-2. The question
> is, when these weights are applied with existing sessions, will the
> algorithm be dynamically changed causing all new sequential sessions to be
> sent to Litl-1 and Litl-2 until they both have approx 33 customers each (not
> sending any sessions to Big-1 or Big-2 until Litl-1 and Litl-2 are balanced)
> before it starts sending additional connections to Big-1 and Big-2, or will
> the switch spread new connections across all 4 servers until a balance
> occurs between all of them.
> Does that make sense?
-- Allan Liska allanIZZATallan.org http://www.allan.org
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