Wiki pages for our design topics

[timfox]

To start things off, here http://wiki.jboss.org/wiki/JBM2PacketReplicationAndFailover is a wiki, as promised for the packet replication and failover work I am doing.

I look forwarding to seeing the others for paging, management, and large message support.

[clebert.suconic]

"Tim Fox on the Wiki page" wrote:
(Potentially in the future we will allow the configuration of multiple backup nodes for a single active node, but first we will concentrate on the simplest case.)

There is also the opposite case of a single backup node for multiple active nodes.
An user might want to keep only one backup for N nodes. (Say... 1 backup for every four active nodes).

[clebert.suconic]

Some thoughts I had:

- What should happen if you bring a "backup node" up, after the live node is running? - on that case how do we copy the state to the new node as new requests are coming? If we support that, is it possible to do that without requiring a valve and lock the server for some time?

[timfox]

Yes, that's difficult.

I'm going to concentrate on getting the simples case working first.