Database Sharding Using a Proxy
ScaleBase’s Liran Zelkha is making the case for database sharding using a proxy:
First and foremost, since the sharding logic is not embedded inside the application, third party applications can be used, be it MySQL Workbench, MySQL command line interface or any other third party product. This translates to a huge saving in the day-to-day costs of both developers and system administrators.
Compare ScaleBase’s proxy-based sharding:

with MongoDB’s sharding:
Another example would be the Hadoop HDFS NodeName which provides somehow similar functionality.
Original title and link: Database Sharding Using a Proxy (©myNoSQL)
via: http://www.scalebase.com/making-the-case-for-sharding-using-a-database-proxy/