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Re: Load Balancing

From: Paul Willis
Date: Wednesday, August 18, 1999
Time: 11:15:00 pm

> >And last, any issues with WebSTAR 4 and the Responder plugin?
>
>I'm not entirely familiar with load balancing issues, but I believe that it
>is recommended that you use the version that comes with WebSTAR 4.

My advice to you is don't use this version 4 that comes with Web*4 there is a bug that will bring down your server

I had experience of this after running load balancing on Web*3 and then upgrading...

From the Web* list at 1:14 pm -0700 25/7/99, Eric Zelenka wrote:
> > I reckon this proves it. I set up an 8600/200 with 8.6 straight off the
> > CD, a copy of our main W*4 installation with all third party plugins
> > removed, QDNS load balancer plugin, W*VH configured with 8 or so sites
> > (although they don't match the QDNS server load balancing records-- I
> > removed the standby server's IP address from those) so it sends 8 or so
> > LPM packets every 20 seconds.
> >
> > I set up another machine to load one page per minute (pagesentry). No
> > other load.
> >
> > It consistently, after four to eight hours, goes into "sleepy network"
> > mode, where W*4 is still running but no TCP/IP or appletalk gets in or
> > out of the machine. Quitting W* sometimes causes a crash. If not,
> > launching it again gives a "trouble initialising multihoming" message,
> > even though I have no multihoming. Restart is required to fix it.
> >
> > Anyway, I have proven that this is a QDNS load balancer problem. It goes
> > away when the QDNS plugin is removed.
>
>Thanks very much for the information. I have forwarded the report onto our
>Quality Assurance staff and engineers at both StarNine and Men & Mice. We
>will try to reproduce and correct this problem in the next release.

Eric was responding to testing by Thomas Wedderburn-Bisshop <listst@woomeranet.com.au> who had exactly the same symptoms as ourselves, removing the QDNS v4 plug-in fixed it. We are going to try the v3 plug-in again when we have a quiet moment.

I must say that on Web*3 it all worked brilliantly.

Paul Willis



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