Hi Rickard,
Could you point me to this in the spec to save some looking? :-)
Thanks,
Dan
On 13 Nov 00, at 17:12, Rickard �berg wrote:
> Hi!
>
> Lennart Petersson wrote:
> <snip>
> > This one would really really really be a performance hit, because such
> > kind of methods is used very often in a typical application. It could be
> > a method like the one above, or a method where a group of records should
> > have their status changed or whatever."
> > <snip>
> >
> > Any comments from the jBoss experts?
>
> Yes, as you note this will be a serious performance hit. Soo, stay away
> from doing that kind of SQL in your beans ;-)
>
> Another one I just found: invocation of finder methods now require that
> all cached instances are synched with the db. This is all fine in a
> non-clustered environment.. but what happens in a cluster!?!? Client
> calls container, the container must then tell all nodes to synch their
> cached instances to the db, and then the call can proceed. For each
> finder invocation you will hence get N-1 more calls where N is the
> number of nodes in the cluster. The only way to avoid this is to make
> sure that once a tx comes to a container it stays there. We were gonna
> do this anyway, but I know some other servers (Hi Cedric! :-) that allow
> the tx to move into other nodes. Which truly messes things up now.
>
> /Rickard
>
> --
> Rickard �berg
>
> Email: [EMAIL PROTECTED]
> http://www.telkel.com
> http://www.jboss.org
> http://www.dreambean.com
>
>
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