high-performance server that centralizes key/data pairs
Sharedance is a high-performance server that centralize ephemeral KEY/DATA Pairs on remote hosts, without the overhead and the complexity of an SQL database. It was mainly designed to share caches and sessions between a pool of web servers. Access to a sharedance server is trivial through a simple PHP API and it is compatible with the expectations of PHP 4 and PHP 5 session handlers.
Homepage: http://sharedance.pureftpd.org/project/sharedance