rs.status()

rs. status ( )

Returns:	A document with status information.

This output reflects the current status of the replica set, using data derived from the heartbeat packets sent by the other members of the replica set.

This method provides a wrapper around the replSetGetStatus command.

Starting in MongoDB 3.4, the replSetGetStatus command can accept the optional initialSync: 1 to report on initial sync status and progress if the command is run on the secondary. To report on initial sync for the secondary, you must run the command instead of the helper.

See the documentation of the replSetGetStatus command for a complete description of the output.