RWP04: Registry Replication

[Elizabeth Auden]

> How about if we have three types of registry:
>
> 1. full: will attempt to maintain a full list of all resources on the VO
> 2. limited: lists only resources of interest to a specific community
> 3. private: only lists the resources at that location; not queryable
>
> Type 1 and 2 registries must maintain a full list of all other registries on
> the VO.

<SNIP>

> If anyone has managed to get this far down, how does this sound?

Since one of the cardinal "Is it a grid?" tests is non-centralized
control, the full registries would have to be mirrored.  Any institution
taking on the responsbility for a mirrored full registry would need to
ensure they have the people, funds, storage space, and security against
illegitimate registry entries.  A network of limited registries sounds
less scary for upkeep, but, as Tony said, the full registries would reduce
the complexity of "all" type queries.  (I hope I didn't just repeat what's
already been said.)

cheers,
Elizabeth