On 13/09/2007, at 1:29 PM, Michael Watkins wrote: > In the end, I think the sql-backed storages are useful in the > following cases, all assuming there is a large record count - many > millions: One point to add to that which was part of my motivation for messing with SQLite as a backend was simple replication of the database for disaster recovery. Using SQL and its locking seems in my mind much less prone to problems than something like pausing the main server and running rsync. Getting reliable and simple replication going with the standard storage engines is something I'd like to work on at some point - if anyone has gone down this path I'd be very interested in the various solutions. I did bring this up a while ago and got some good pointers but haven't really had a chance to did into it much. Peter W.