[Opensim-dev] Inventory loss

Mojito Sorbet mojitotech at gmail.com
Fri Jul 31 15:34:16 UTC 2009


This sounds like a classic case of something that should be a two-phase
commit transaction performed atomically.  The fact that it is not, and
may even be spread across multiple processes, is a hole in DB
consistency.

I do not think we want to get into doing *distributed* 2P transactions -
I have worked on such things and they are a real bear.  Non-distributed
2P transactions are much easier.

Is there any thought to using the MariaDB fork of MySQL?  Its Maria
table engine is supposed to be a lot more reliable than MyISAM, and it
has transaction semantics.  Of course, MyISAM is still availble for
those tables where transaction semantics is not needed.

On Fri, 2009-07-31 at 15:32 +0100, Thomas Grimshaw wrote:
> It's supposedly inserted into the region tables, but the issue comes 
> when the region server is unable to do this (or crashes),
> the item is lost permanently.





More information about the Opensim-dev mailing list