MongoDB

MongoDBYouTube

• an open-source NoSQL database written in C++ language.

• uses JSON like documents with optional schemas.

• inbuilt support for data partitioning (Sharding)

Features

• Indexing

• Aggregation

• Special Collection and index types

• File Storage

• Sharding

Scaling

• The documented oriented data model of MongoDB makes it easier to split data across multiple servers.

• Balancing and loading data across a cluster is done by MongoDB. It then redistributes automatically.

• The mongos acts as a query router, providing an interface between client applications and sharded cluster.

• Config servers store metadata and configuration settings for the cluster. Each sharded cluster must have its own config servers.

• MongoDB uses the config servers to manage distributed locks.

Geospatial Indexes

Types

• 2dsphere

• 2d