[Opensim-dev] varregion and the grid

[Michael Emory Cerquoni]

OSgrid Robust has been updated to master git.


On Sat, Dec 28, 2013 at 10:55 PM, Mister Blue <misterblue at misterblue.com>wrote:

> After a brief hiatus recovering from a crashed disk and installing and
> becoming accustomed with Windows 8.1 (question to MS: what the heck were
> you thinking???), I’ve spent more time on the OpenSimulator varregion code.
>
> The code is still on the ‘varregion’ branch of the source repository and
> it has been kept pretty close to the ‘master’ branch. I’ve added the size
> information to a bunch of the teleport messages trying to get teleport to a
> large region working. Sadly, it crashes Singularity whenever you log into
> or teleport to a non-legacy sized region in grid mode. Works in standalone
> mode. I haven’t tested it yet, but I’m hoping adjacent standalone large
> regions (like four 512×512) now border cross. It is an iffy thing, though,
> since there is ‘find my neighbor’ logic in Scene, GridService,
> EntityTransferModule, and a few other places. That logic does need some
> cleaning up.
>
> I found that the Singularity crash when running in grid mode has to do
> with the fact that the grids out there are not running the ‘varregion’
> code. In particular, OSGrid’s grid service is not storing and returning the
> region size. This means that Singularity gets told the destination region
> is zero by zero which is assumes means that region is legacy sized
> (256×256). The simulator, though, thinks the region is larger and sends
> terrain patches to Singularity for the larger region. Singularity doesn’t
> like that and it crashes complaining about bad terrain patches.
>
> The fix is to get the grid services updated. To that end, I added a new
> commit to ‘master’ that adds the size accounting to RegionInfo, RegionData,
> and GridRegion classes. Since the database code already knows about storing
> the region sizes, this makes for a downward compatible update to the
> ‘master’ branch that does not change any APIs or change any functionality
> except for passing around and storing the region size along with its
> location.
>
> Once that patch is distributed or cherry-picked
> (commit 6869633d76b2a6664743a608e4284b8dd7df85a6), testing will continue.
>
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>



-- 
Michael Emory Cerquoni
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