Re: Experience with scalability of parallel server?

From: Barbara Kennedy <barbken_at_teleport.com>
Date: Sun, 10 Sep 2000 08:44:36 -0700
Message-ID: <M_Nu5.24485$wS1.1369770@nntp2.onemain.com>

It isn't as simple as add another server and scale 2x (or thereabouts). If the application is partitioned correctly then yes. For example, If Machine A has blocks 1 through 10,000 locked for it's users and Machine B needs one of those blocks then it signals Machine A through the DLM (dynamic lock manager). Machine A then writes it's data out and releases those blocks. Machine B now can operate on those blocks. If very soon after Machine A needs one of those blocks it...

You can get added overhead if there is a lot of this false pinging. You need to do a lot of configuration and monitoring to make sure things get set up just right. No I have not set this up, I surmise this from the Oracle documentation.
Jim

"bannick" <bannick_at_mail.tele.dk> wrote in message news:8pfsib$3me$1_at_news.inet.tele.dk...
> Can anybody share some comments on the scalling capabilitties of Parallel
> Server?
> I've had some clear indications that Parallel Server is excellent for
> availability, but not very good for scaling purposes.
> If you know any references regarding this, or you're experinced in trying
to
> scale databases with parallel server, I would really appreciate your
> thoughts.
> Thanks.
>
>
Received on Sun Sep 10 2000 - 10:44:36 CDT