The beginning of MongoDB

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MongoDB is written by the C + + language and is an open source database system based on distributed file storage.

In the case of high load, adding more nodes can guarantee the performance of the server.

MongoDB is designed to provide scalable, high-performance data storage solutions for Web applications.

MongoDB stores data as a document and data structures consist of key-value (key=>value) pairs. A MongoDB document is similar to a JSON object. Field values can contain other documents, array

and an array of documents.

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Http://www.runoob.com/mongodb/mongodb-mongostat-mongotop.html

After feeling:

MongoDB is really powerful, the most surprising is the own MongoDB copy function, that is, the replica set function, a master from or a master multi-slave, fully comes with the host and standby machine.

The Shard function is also very good, the equivalent of the distributed storage method, completely do not worry about the database space is not enough. Scale your DB cluster horizontally, add slices dynamically, which costs more than vertical add-on, and is quick and easy.

The beginning of MongoDB