Maintainable Software released two very cool plugins for supervisor today. The first is supervisor_twiddler which allows you to add arbitrary processes to the supervisor process set via XML-RPC while supervisor is running. The second is supervisor_cache which allows you to stash cache data via XML-RPC inside supervisor. Many thanks to Mike Naberezny and Maintainable for releasing these bits. They're very useful on their own merit, and they serve as a great example of writing supervisor plugins for other folks.