Load Balancing Question...
Auteria Wally Winzer Jr.
wallyw at NBCi.COM
Mon Apr 24 23:24:48 UTC 2000
I want to test our load balancer scheme, but only with
1/4 of the servers against the load balancer box, not all
8 servers (currently in rotation). The present scheme is
DNS round-robin. It looks something like this:
Domain snaptest.com
home IN A 205.205.205.61
IN A 205.205.205.62
IN A 205.205.205.63
IN A 205.205.205.64
IN A 205.205.205.65
IN A 205.205.205.66
IN A 205.205.205.67
IN A 205.205.205.68
Round-Robin works as expected. The TTL is set
for 15 minutes. Now, I have a load-balancer, which
its IP Address is 205.205.205.60. All 8 of my web
servers are bound to my load balancer's virtual LAN.
What I'd like is to have 1/4 of each web server tested
instead of all 8. For example. The load balancer is set
to 205.205.205.60. When DNS does its round-robin
I want to see the following:
Server: localhost
Address: 127.0.0.1
Name: home.SnapTEST.COM
Addresses: 205.205.205.60, 205.205.205.61, 205.205.205.62,
205.205.205.60, 205.205.205.63, 205.205.205.64,
205.205.205.60, 205.205.205.65, 205.205.205.66,
205.205.205.60, 205.205.205.67, 205.205.205.68
The load balancer will always be first, then 2 of the web servers.
When you query home again, DNS will round-robin and the next
set of IP's will display the following:
Server: localhost
Address: 127.0.0.1
Name: home.SnapTEST.COM
Addresses: 205.205.205.60, 205.205.205.63, 205.205.205.64,
205.205.205.60, 205.205.205.65, 205.205.205.66,
205.205.205.60, 205.205.205.67, 205.205.205.68,
205.205.205.60, 205.205.205.61, 205.205.205.62
And so on. I don't wish to use multiple CNAMES, only A Records
(if possible). My question is:
IS THIS HUMANLY POSSIBLE FOR BIND 8?
I've tried many combinations, but to no avail.
Your response is greatly appreciated. I thought I knew BIND
exceptionally well, but I guess I don't know it as well as I thought.
- Wally Winzer Jr.
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