Riak

Riak is a distributed key-value store that is schema-less and data-type agnostic. It can be put to good use in write-heavy projects to store data such as sessions, shopping carts and streaming logs - whilst it retains the ability to perform complex queries in a full-text search. The distributed cluster can self-recover without a single master, has tuneable consistency and availability settings and can do collision detection and resolution if needed - all of which can be particularly helpful in high availability environments.

Riak is a distributed key-value store that is schemaless and data-type agnostic. It can be put to good use in write heavy projects to store data such as sessions, shopping carts and streaming logs. The ability of the distributed cluster to self recover, distribute data across the cluster with tunable consistency and availability settings, do collision detection and resolve those if needed can be helpful in high availability environments and provide interesting solutions in the architecture.