You can still cluster the database so that isn't a problem of concern.
Based on recent tests we're seeing scalability at a few times the other ORB
based systems.
There are some things to be aware of, in that it is a somwehat a shared
nothing type system. The classes, namespace and structures are shared as in
any system. Every connected session runs "as if" it has it's own JVM (at
about 50 - 100K per session). If you look at ap server vendors today, they
are trying to make bigger walls between their sessions to enhance
scalability. Oracle is now working on easier mechanism to manage shared
runtime objects.
Their JVM architecture is based upon the same way they have done shared
servers for years, and we know those can scale into the 100,000s of
simultaneous connections. There are some very significant sites that have
what can still be considered HUGE numbers of concurrent usages that are in
this technology.
Thor HW
----- Original Message -----
From: "Avi Kivity" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, May 21, 2000 5:41 AM
Subject: Re: Oracle8i EJB Server Experiences
> >
> > We are planning to use Oracle8i (ver 8.1.6) as our EJB server. All
> > session beans will be created and deployed in Oracle8i. (no entity
> > beans since ver 8.1.6 does not support them).
> >
> > I would like to know of any good/bad experiences (in terms of
> > stability,
> > performance, etc.) implementing EJB in the Oracle8i database. Can
> > anyone point me to web sites that you know have been
> > implemented in this
> > manner?
> >
> One thing most app servers allow you to do is to cluster multiple app
> servers against a single database, which ensures you can always have ample
> CPU power to keep the database busy. If the EJBs run on the database, then
> they may contend with the database engine for CPU time, and you will have
> scalability problems.
>
> - Avi
> --
> s/\be(\w+)/e-\1/g;
>
>
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