Hi all,

To add to this, there was a concern on the footprint of MB running inside
carbon servers. And, as discussed MB+Cassandra is not what's going to be
used here, but probably another mode. There will be 3 modes in total:

   1. In-memory
   2. SQL-DB
   3. Cassandra

The Embedded-MB will be like an Embedded Registry or AM, and will be a
minimal deployment to support basic requirements. Further, MB is not simply
used for DepSync but also for several platform-wide requirements and as a
part of the unification process we are working on. For example,
Notifications will use this too.

Thanks,
Senaka.



On Fri, Sep 13, 2013 at 5:06 PM, Pradeep Fernando <[email protected]> wrote:

> Hi All,
>
> During the recent depsync related meeting, the above $subject came up..
> here are the some of the discussion points.
>
> - Currently our depsync setup uses cluster messages to send the repository
> sync message
>  - Message loss is a one issue with the current approach. message
> replaying can be done, but not the proper way to do it.
> -  We can use JMS/MB as the communication mechanism between depsync nodes.
> - the solution scales well, message persistence is there by default.
>
> Approach,
>
> - We ship a embedded MB server with our every product. (p2 feature
> installation is one/server profile/ etc is open for discussion)
> - manager node starts up the MB server, worker nodes read from it.
> - LB can load balance across cluster either using static endpoints or can
> get the endpoint details from the MB itself - LB doe not have to use
> clustering anymore..
>
>
> Concerns,
>
> How are we going to incoperate these changes to future releases.
> Deployment is part of the carbon kernel. If we are to implement above there
> are kernel changes. what is the expected release version,
>
> thanks,
> --Pradeep
>



-- 
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*Senaka Fernando*
Senior Technical Lead; WSO2 Inc.; http://wso2.com*
Member; Apache Software Foundation; http://apache.org

E-mail: senaka AT wso2.com
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*Lean . Enterprise . Middleware
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