RESTful document oriented database, system DB
juju deploy cs:oneiric/couchdb-0
Apache CouchDB is a distributed, fault-tolerant and schema-free
document-oriented database accessible via a RESTful HTTP/JSON API.
Among other features, it provides robust, incremental replication with
bi-directional conflict detection and resolution, and is queryable and
the default view definition language. CouchDB is written in Erlang,
but can be easily accessed from any environment that provides means to
make HTTP requests. There are a multitude of third-party client
libraries that make this even easier for a variety of programming
languages and environments.