load balancing.... not working for me....

Re: load balancing.... not working for me....

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At 9:15 AM -0500 11/3/01, Joseph D'Andrea wrote:
>Sanity check please... what am I missing?
>
>machine-P
>MacOS 8.6
>QuickDNS Server 3.0.1
>QuickDNS Remote

Add QuickDNS Load Balancer to this QuickDNS Server machine.

>machine-M
>MacOS 9.1
>QuickDNS Load Balancer
>WebSTAR 4.4

Remove QuickDNS Load Balancer from this WebSTAR machine.

>machine-W
>MacOS 9.0.4
>QuickDNS Server 3.0.1
>QuickDNS Remote
>QuickDNS Load Balancer
>WebSTAR 4.2
>
>machine-PB (the admin machine)
>QuickDNS Manager 3.5.1 (carbon)
>
>
>None of the Web* servers have the "load balance" plug in installed.

Good.

>both "P" and "W" have load balance records for a domain that can be
>served from wither "M" or "W".I have tried various percentages of
>"50/50" , "1/1" , "99/1" and "1/99". Seems that no matter what I do,
>when using LBtester, the only IP address that is returned is for "W"

Judging by the info above, if you test DNS server P, you should get
non-LB responses; testing DNS server W should show normal load
balancing.

>What's missing that's not obvious to me?

You might be able to locate the problem by thinking about the process
involved. QuickDNS Load Balancer sends HTTP connection requests to
each web server. If the web server responds and accepts the
connection, the connection is immediately dropped, and a signal is
sent to QuickDNS Server indicating that that particular server is
still up and running.

If you put a web browser on each machine running QuickDNS, could you
connect to the (public) IP address of each web server, as listed in
the load balance record? If not, why not?
____________________________________________________________________
Chris Buxton Men & Mice
support@menandmice.com Making DNS Easy

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