[Opensim-dev] Global identifiers

[James Stallings II]

Perhaps the ideal fix for stale references is to somehow be able to sanely
indicate they have become stale.

Cheers


On Sat, Aug 28, 2010 at 4:43 PM, <diva at metaverseink.com> wrote:

> A couple of clarifications:
>
> 1 - OpenSim is strict about differentiating between local resources and
> global resources. For local resources, plain UUIDs are always used, not
> global IDs, so not to impact in any way any configurations that ppl may
> have. Grid operators have a fair amount of freedom to decide what kind of
> UUID they use (in principle, although in practice we use whatever scheme
> libomv uses). Global names are only used for "foreign" resources.
>
> 2 - OpenSim uses DNS resolution aggressively, and I don't think it needs to
> reinvent the wheel in that respect.
>
> 3 - OpenSim probably won't solve the general issue of stale resources. If
> someone once was identified by "ibm.com/smith" and then got laid off from
> IBM, the virtual identity "ibm.com/smith" will be stale. But references to
> it will persist on the Internets... I don't think we'll be able to fix that.
>
>
> Ai Austin wrote:
>
>> diva wrote:
>>
>>> I'm about to introduce global identifiers, so that I can make friends
>>> and IM work on the hypergrid, and would like feedback on the best form
>>> of these identifiers.
>>>
>>
>>  Here are some options:
>>> ... Thoughts?
>>>
>>
>>
>> A couple of thoughts and observations Diva...
>>
>> Could the taxonomy of "types" you use cause problems if the chosen 1-1
>> mapping for a UUID is not felt to work well i future.
>>
>> "user" is also perhaps a different notion to a specific "avatar"
>>
>> It would be nice if any UUID in a URI you use can be resolved (e.g. to the
>> avatar name) by any host that has the mapping (like the distributed nature
>> of DNS works), so its not dependent on the host continuing to exist, or to
>> be up at the time information on the avatar is sought.
>>
>> AS an example, we have shifted our data bases between machines and have
>> done so 3 or 4 times since we started running OpenSim, carrying the UUIDs of
>> avatars (and the UIIDs of regions we use) forwards to the new data bases.
>>
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