https://github.com/Netflix/dynomite
Dynomite,inspired by ,is a thin,distributed dynamo layer for different storage engines and protocols. Currently these include and nofollow">Memcached. Dynomite supports and is designed for high availability.
The ultimate goal with Dynomite is to be able to implement high availability and that do not inherently provide that functionality. The implementation is efficient,not complex (few moving parts),and highly performant.