db.hello()
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
mongod
instance.If the
mongod
is a member of a replica set, then theisWritablePrimary
andsecondary
fields report if the instance is the primary or if it is a secondary member of the replica set.