On January 14, 2011, "Jaiswal Dhaval Sudhirkumar" <JaiswalDS@microland.com> wrote:
> Hi,
>
> I am looking for active-active clustering solution.
>
> I have one SAN box and two separate NODES, where I need to create
> active-active cluster. My data directory would be one and mounted to the
> SAN box for both the nodes. (There will be one sharable data directory
> for both the nodes) So the query which will come to the load balancer
> (pgpool) it will route to the node which has a less load. However, it
> will use the same data directory. It is nothing but the RAC kind of
> structure. Now, my question is.
>
> 1) Is it possible above implementation in PostgreSQL?
> 2) Has someone implemented cluster in their production environment?
>
> Please experts share your thought/comments/experience how I shall achieve
> that.
>
You cannot run multiple PostgreSQL instances against the same data directory.
--
A hybrid Escalade is missing the point much in the same way that having a diet soda with your extra large pepperoni pizza is missing the point.
