db.hello()
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db.hello()New in version 5.0: (and 4.4.2, 4.2.10, 4.0.21, and 3.6.21)
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.Tip
See:
hellofor the complete documentation of the output ofdb.hello().