The idea for Eventually Consistent comes from the Amazon SimpleDB technology and Amazon CTO’s blogpost about the concept of eventual consistency in the context of data replication. As with CouchDb, the concept of distributed, document-centric, non-relational and schema-free database engines is gaining traction – especially in the community of web-application architects/developers that need to scale sites/applications that deal with huge amount of data.

There is a lot of confusion on the subject and many are trying to compare the performance and usability of such engines in the context of their existing RDBMS architecture. You simply cannot do a first-degree comparison of MySQL/PostgreSQL/etc versus SimpleDB or CouchDb – they are very different tools to solve very different problems.

Welcome aboard!

Colin.