On Wed, Sep 21, 2011 at 2:24 PM, guclu akkaya <[email protected]>wrote:

> Thank you for your answers,
>
> What we want to achieve in our environment is to build a cluster of 3
> DSS servers. Their configuration are common and stored by the GREG. This
> section was successfully configured. In the front end we want a load
> balancer(LB), which is capable of handling protocol requests(e.g.
> http/https) to 3 active DSS nodes in the protocol level. However the
> count of the nodes of in the cluster will not be limited to 3. So the LB
> should have the capability to recognize new members of the DSS cluster.
> My question is what wso2 product (probably ESB) should be used and what
> should be done as configuration steps?
>
>
http://blog.afkham.org/2011/09/wso2-load-balancer-how-it-works.html will
give you an idea about what should be done. I will be writing another blog
post on how exactly to configure the LB.

>
>
>
> On Wed, 2011-09-21 at 14:06 +0530, Afkham Azeez wrote:
> >
> >
> > On Wed, Sep 21, 2011 at 2:01 PM, Sumedha Rubasinghe <[email protected]>
> > wrote:
> >
> >
> >         On Wed, Sep 21, 2011 at 11:45 AM, guclu akkaya
> >         <[email protected]> wrote:
> >
> >                 Hi all,
> >
> >                 Currently we are trying to prepare our environment by
> >                 clustering 3 DSS
> >                 servers in a clustered manner. For that we want one
> >                 DSS node to be the
> >                 group manager and other to be the slaves.
> >
> >         All DSS nodes have the same capability. Hence, there is no
> >         in-built concept of group manager & slaves.
> >
> >
> >
> > Group manager is a clustering concept which is supported by the Carbon
> > framework. In this setup, one DSS instance can be designated as the
> > cluster manager, and contain the cluster management component. This
> >  instance can be used for cluster management purposes, in addition to
> > its normal DSS activities.
> >
> >
> > An LB is also a special group manager. However, it is not correct to
> > make a DSS group manager into an LB.
> >
> >
> >
> >
> >         Perhaps what you should be considering is having,
> >         -LB (load balancer)
> >         -3 DSS nodes
> >         -Configuration on G-Reg
> >
> >         But, the most accurate answer depends on what you want to
> >         achieve & the problem your trying to solve.
> >
> >         /sumedha
> >
> >                 The articles Introduction to
> >                 WSO2 Carbon Clustering and
> >                 WSO2 Carbon Cluster Configuration Language were great
> >                 help. All members
> >                 all the cluster are using a GREG(wso2 governance
> >                 registry server) as the
> >                 common registry point for the resources such as
> >                 deployed services. For
> >                 the high availability we also want to add a load
> >                 balancer in front of
> >                 our cluster. While reading the articles regarding this
> >                 matter only ESB
> >                 product is mentioned as load balancer. Since the
> >                 articles were at least
> >                 from one year ago, is other products also supporting
> >                 load balancing? Is
> >                 it possible for a group manager DSS node also to take
> >                 the role of a load
> >                 balancer for the cluster?
> >
> >                 Thanks
> >
> >                 _______________________________________________
> >                 Carbon-dev mailing list
> >                 [email protected]
> >                 http://mail.wso2.org/cgi-bin/mailman/listinfo/carbon-dev
> >
> >
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> >
> >
> >
> >
> >
> > --
> > Afkham Azeez
> > Director of Architecture; WSO2, Inc.; http://wso2.com
> > Member; Apache Software Foundation; http://www.apache.org/
> >
> > email: [email protected] cell: +94 77 3320919
> > blog: http://blog.afkham.org
> > twitter: http://twitter.com/afkham_azeez
> > linked-in: http://lk.linkedin.com/in/afkhamazeez
> >
> >
> >
> > Lean . Enterprise . Middleware
> >
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-- 
*Afkham Azeez*
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Member; Apache Software Foundation; http://www.apache.org/
* <http://www.apache.org/>**
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