TencentDB for MongoDB is a high-performance distributed data storage service created by Tencent Cloud based on MongoDB, an open-source non-relational database. It is fully compatible with the MongoDB protocol and applicable to various non-relational database-oriented scenarios.
MongoDB® is a registered trademark of MongoDB, Inc. TencentDB for MongoDB is not authorized by or affiliated with MongoDB, Inc. Tencent's use of MongoDB software is based on open-source licenses.
The system architecture of TencentDB for MongoDB replica set is as follows:
Replica set v4.0 is different from other versions in architecture. It has no proxy set component, so you can directly access each node:
A sharded cluster consists of components such as shards, proxy sets, and config servers. Each shard contains a subset of sharded data. Each shard in TencentDB for MongoDB is deployed as a replica set: