From: Ashutosh Bapat
> Each node need to be confiugred and maintained. That requires
efforts.
> So we need to keep the number of nodes to a minimum. With a
> coordinator and worker node segregation, we require at least two
nodes
> in a cluster and just that configuration doesn't provide much
> scalability. With each node functioning as coordinator (facing
> clients) and worker (facing other coordinators) keeps the number of
> nodes to a minimum. It is good for HA.
I think so, too. Every node should behave as both the coordinator and
the data node in XL parlance. But I don't preclude a central node.
Some node needs to manage sequences, and it may as well manage the
system catalog.
Regards
MauMau