[Opensim-dev] Shaping the user services

[Melanie]

That is outside the scope of OpenSim. It can be handled at the 
database level.

Melanie

Sacha Magne wrote:
> One question :
>   Will thoses servers allow duplication across physicals servers to allow
> some kind of redundancies , ie one or several servers crashs won't impact
> the grid ?
> 
> Sacha
> 
> On Mon, Jun 22, 2009 at 1:38 PM, Melanie <melanie at t-data.com> wrote:
> 
>> After breaking my head over this for a few weeks, I believe I have
>> figured out how to do this in a sane way.
>>
>> The fallacy was to assume that the login server and the user server
>> would be one entity. That makes things overcomplicated and breaks
>> the architecture all over the place.
>>
>> Now, here is what I have come up with:
>>
>> User Server:
>> - Resolve name to key queries
>> - Resolve key to name queries
>> - Provide avatar picker lists
>> - Manage home region data
>>
>> Authentication server
>> - Create and manage authentication handles (string) and session keys
>> (UUID)
>> - Check passwords or other forms of authentication
>>
>> Login server
>> - Provide the interface for the Linden viewer to log into a grid.
>> Uses the services above, but doesn't contain them.
>>
>> Presence server
>> - Manages last position data
>> - Keeps list of logged in avatars and their locations
>>
>> Alongside with this, a new database is needed. This will not be an
>> upgrade path, but a parallel development with a migration tool.
>>
>> Profile information has no place in this architecture and will be
>> handled exclusively by the profiles module.
>>
>> The user table will specifically be designed to accommodate
>> additional fields and allow getting/setting of such fields.
>>
>> With all user data, a scope identifier will be passed. This will be
>> UUID.Zero in the most common case (Standalone or single grid) but
>> will allow sharing of server processes between multiple logical grids.
>>
>> Comments are welcome.
>>
>> Melanie
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>>
> 
> 
> 
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