Mongos
- Mongos instances act as the interface between client applications and the sharded cluster.
- They handle query routing, shard management, and result aggregation.
- Mongos instances do not store data themselves but depend on metadata caching from the config servers to route queries efficiently.
- Mongos instances are part of the MongoDB architecture designed for scalability and high availability.
- They are lightweight processes that communicate with both the client applications and the MongoDB shards.
- Mongos instances are responsible for parsing incoming queries and determining which shard or shards to route the queries to.
Sharded Cluster Components in MongoDB
MongoDB’s sharding capability enables horizontal scaling by distributing data across multiple servers or “shards.” Understanding the components of a sharded cluster is crucial for managing and scaling database infrastructure efficiently.
In this article, We will explores the key components of a sharded cluster in MongoDB, including shards, primary shards, config servers, and mongos instances.