Sharded Cluster Test Architecture¶

Warning

Use the test cluster architecture for testing and development only.

For testing and development, you can deploy a sharded cluster with a minimum number of components. These non-production clusters have the following components:

A replica set config server with one member.

Changed in version 3.2: Starting in MongoDB 3.2, config servers for sharded clusters can be deployed as a replica set. The replica set config servers must run the WiredTiger storage engine. MongoDB 3.2 deprecates the use of three mirrored mongod instances for config servers.
At least one shard. Shards are either replica sets or a standalone mongod instances.
One mongos instance.

Diagram of a sample sharded cluster for testing/development purposes only. Contains only 1 config server, 1 ``mongos`` router, and at least 1 shard. The shard can be either a replica set or a standalone ``mongod`` instance.

See

Production Cluster Architecture

← Production Cluster Architecture Sharded Cluster Behavior →

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