Further reading
The following sources are recommended for you to study sharding in depth:
- Scaling MongoDB by Kristina Chodorow
- MongoDB: The Definitive Guide by Kristina Chodorow and Michael Dirolf
- MongoDB manual—Sharding:
- MongoDB sharding pitfalls: https://www.mongodb.com/blog/post/sharding-pitfalls-part-iii-chunk-balancing-and
- MongoDB sharding and chunks: http://plusnconsulting.com/post/mongodb-sharding-and-chunks/
- MongoDB sharding internals: https://github.com/mongodb/mongo/wiki/Sharding-Internals
- MongoDB sharding:
- MongoDB sharding and replica sets release (v1.6): https://www.infoq.com/news/2010/08/MongoDB-1.6
- Horizontal and vertical scaling explained: http://www.pc-freak.net/images/horizontal-vs-vertical-scaling-vertical-and-horizontal-scaling-explained-diagram.png