On Feb 15, 2008 11:38 PM, Tom Enterline (OSM) <[EMAIL PROTECTED]> wrote: > What has already been done on data checks, and is anyone else working on > it? What would be some good ideas to start with, and goals to work toward?
A bit late to the party, but I have some comments: The comment about the planet dump not being a consistant snapshot is correct. Better is to take a planet dump and apply the next daily diff. That gives you a snapshot the *is* consistant. Secondly, prevention is better than cure. It would be worthwhile going over all the code that accesses the server database and determine if it is "safe". The lack of transactions makes it more difficult, but the idea is that prior to deleting a node you check that it's not used, after locking it. And more importantly, *after* you've deleted it, check again. Alternatively, when adding/updating a way, lock the component nodes prior to doing the update so they can't get deleted in the meantime. There are many methods and complete books written on the topic. Choose whichever you like best, but it's certainly a problem that needs to be solved. Have a nice day, -- Martijn van Oosterhout <[EMAIL PROTECTED]> http://svana.org/kleptog/ _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
