[Opensim-users] grid operation

[Diva Canto]

Right.
When your region is connected to a physical grid, your region is *just* 
a 3D space server, nothing else.
All assets belong to the asset server, all inventories belong to the 
inventory server, all users belong to the user server.

Paul Fishwick wrote:
> Got it. So, the data are stored on the asset server. If this is
> so, it doesn't seem that my region server (the opensim instance
> I might run as part of someone's grid) is doing much of
> anything since any change in prim or agent attribute must be
> conveyed back to the grid's asset server.
> -p
>
> Diva Canto wrote:
>   
>> By "assets" I mean the data itself, the blobs/text/etc.
>> The region prims/primitems storage holds only references to that data.
>>
>> Look inside OpenSim.db. There is no "data" there, only meta data and 
>> references to the data (by UUID) stored on the asset server.
>>
>> Paul Fishwick wrote:
>>     
>>> When you say the prims and primitems are not assets, I am confused.
>>> My understanding was that all items are assets, identified by their unique
>>> UUIDs. If I follow the point about the asset server, the asset servers
>>> stores all asset UUID references by region, but that the specific asset
>>> attributes (i.e., position of an object, or its texture) are stored by UUID
>>> in the region's DB?
>>> -p
>>>
>>>
>>> Diva Canto wrote:
>>>   
>>>       
>>>> The asset server holds the assets for the entire collection of regions 
>>>> on that physical grid. For example, when you create an object inworld, 
>>>> the asset corresponding to that object is stored on the asset server.
>>>>
>>>> The region caches some assets in memory. For example, in that creation 
>>>> scenario, the asset would be on the cache of the region too.
>>>>
>>>> The region also has a database storing "prims" and "primitems". These 
>>>> are not assets; they are the prims that are inworld at any given time. 
>>>> The prims refer to assets (by UUID) that are stored on the asset 
>>>> server. Which, as the previous sentence says, may be cached in memory 
>>>> of the region.
>>>>
>>>> Paul Fishwick wrote:
>>>>     
>>>>         
>>>>> Right. But what, exactly, are these servers doing?  I guess I am trying
>>>>> to get at more of the architectural details of what types of messages are
>>>>> sent among servers (over the network and to the database(s)). For
>>>>> example, there are the UGAIM servers in grid mode. Does the grid's "A"
>>>>> server hold all of the assets on your region that  you plugged into the
>>>>> grid? Or does your region database (on the same computer as your
>>>>> opensim.instance) take care of that?
>>>>> -paul
>>>>>
>>>>>
>>>>> Ideia Boa wrote:
>>>>>   
>>>>>       
>>>>>           
>>>>>> If you run 1 region in a grid, you only run OpenSim server, the others 
>>>>>> servers (User, Grid, Asset, Inventory and Message) are running on the 
>>>>>> Grid servers with the grid OpenSim server.
>>>>>>
>>>>>>
>>>>>>
>>>>>> Paul Fishwick wrote:
>>>>>>   
>>>>>>     
>>>>>>         
>>>>>>             
>>>>>>> If one hooks a region to a grid, what functions does the
>>>>>>> region server (operating on your computer) perform? The
>>>>>>> Grid servers are running asset and inventory management,
>>>>>>> so does this mean that the grid A and I machines handle
>>>>>>> the assets and inventory or is that the function of the region
>>>>>>> server that connects to the grid?
>>>>>>> -p
>>>>>>>
>>>>>>>   
>>>>>>>     
>>>>>>>       
>>>>>>>           
>>>>>>>               
>>>>>>   
>>>>>>     
>>>>>>         
>>>>>>             
>>>>>   
>>>>>       
>>>>>           
>>>> ------------------------------------------------------------------------
>>>>
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>>>>   
>>>>     
>>>>         
>>>   
>>>       
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>
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