(Part 2) Josh Wells

Topics  Quick Review  Aggregation  Sharding  MongoDB Users

Relational Database Problems  Overhead  Unstructured data not well-supported  Not very scalable

NoSQL Document Model

Aggregation  Process Data  Aggregation Pipeline  JS array of operations

MapReduce  Custom functions  Sorting  Similar to aggregation

Scalability Problems  Relational databases are hard to scale up  Vertical Scaling

Sharding  Horizontal scaling  Good for fast data growth  Can increase performance  Better data redundancy

Shard Clusters

Replica Sets  Redundancy  Span across shards  Performance boost  Automatic primary

Data Balancing

MongoDB Users  Ebay  Google  Craigslist  Adobe  Facebook  Expedia  EA  MetLife

And Last But Not Least