BPEL

["Sykes, Phil" <Ph...@sungardhe.com>]

I read somewhere that Tuscany works in a clustered environment.  However ODE does not. How does that work ?  Does the clustering only work if not using BPEL?

Thanks,

Phil

Philip Sykes * Principal Java Developer, Banner Product Engineering * SunGard Higher Education * 3 Country View Road, Malvern PA 19335 * Tel 610 578 5185 * Phil.Sykes@sungardhe.com<ma...@sungardhe.com> * www.sungardhe.com<http://www.sungardhe.com/>

Re: BPEL

[Simon Laws <si...@googlemail.com>]

On Thu, Feb 19, 2009 at 1:01 PM, Sykes, Phil <Ph...@sungardhe.com>wrote:

>  I read somewhere that Tuscany works in a clustered environment.  However
> ODE does not. How does that work ?  Does the clustering only work if not
> using BPEL?
>
>
>
> Thanks,
>
>
>
> Phil
>
>
>
> Philip Sykes * Principal Java Developer, Banner Product Engineering *
> SunGard Higher Education * 3 Country View Road, Malvern PA 19335 * Tel 610
> 578 5185 * Phil.Sykes@sungardhe.com <Ka...@sungardhe.com> *
> www.sungardhe.com
>
>
>

Hi Phil

We've run Tuscany in an HTTPD/Tomcat cluster to demonstrate it works but the
Tuscany runtime itself isn't cluster aware. The implication of this is that
you can use a cluster for load balancing work across stateless service
implementations but if a service implementation requires that state is
maintained across service calls you will run into problems as service
requests are dispatched to the wrong node. Implementation.bpel would only
work for very simple synchronous scenarios because each node in the cluser
starts its own independent ODE engine instance.

Regards

Simon