db.hello()
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db.hello()New in version 5.0.
Returns a document that describes the role of the
mongodinstance.If the
mongodis a member of a replica set, then theisWritablePrimaryandsecondaryfields report if the instance is the primary or if it is a secondary member of the replica set.
Compatibility
This method is available in deployments hosted in the following environments:
MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud
Note
This command is supported in all MongoDB Atlas clusters. For information on Atlas support for all commands, see Unsupported Commands.
MongoDB Enterprise: The subscription-based, self-managed version of MongoDB
MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB