[Chandler-dev] Tinderbox Cosmo instance upgrade is done

[Randy Letness]

Heikki Toivonen wrote:
> FYI: the reason for this change are those intermittent 500 errors during
>  sharing tests. We believe this to be a bug in Derby, and switching to
> MySQL should get us rid of that.
>
> In other words, Cosmo should be much more reliable now.
>   


Just to clarify, its not that there is a bug in Derby, its just that 
MySQL handles concurrent operations a lot better than Derby.

-Randy