Sharding

MongoDB includes an auto-sharding module ("mongos"). Auto-sharding allows one to build a large horizontally scalable database cluster that can incorporate additional machines dynamically.

Alpha 2 of sharding is now available (sharding alpha 2 is part of MongoDB 1.1+). Please see the Limitations page for alpha restrictions.

Please note: the documentation below is for alpha 2; certain commands have changed since alpha 1. Please be sure you are using MongoDB v1.1 or higher.