MongoDB is a non-relational document database that provides support for JSON-like storage. Its flexible data model allows you to easily store unstructured data. First released in 2009, it is the most commonly used NoSQL database. It has been downloaded more than 325 million times.
MongoDB is popular with developers because it is easy to get started with. Over the years, MongoDB has introduced many features that have turned the database into a robust solution able to store terabytes of data for applications.
As with any database, developers and DBAs working with MongoDB should look at how to optimize the performance of their database, especially nowadays with cloud services, where each byte processed, transmitted, and stored costs money. The ability to get started so quickly with MongoDB means that it is easy to overlook potential problems or miss out on simple performance improvements.
