db.getReplicationInfo() in mongoDB

getReplicationInfo()

This method returns a document with the status of the replica set, using data polled from the oplog.

Note: Use this output when diagnosing issues with replication.

Syntax:

db.getReplicationInfo() 

Example 1: When replication is detected

MongoDB

db.getReplicationInfo()

Output

{
    "logSizeMB": 694.33,
    "usedMB": 28.6,
    "timeDiff": 2152896,
    "timeDiffHours": 598.03,
    "tFirst": "Sat Jun 25 2022 17:48:27 GMT+0530 (IST)",
    "tLast": "Sat Jun 15 2022:50:03 GMT+0530 (IST)",
    "now": "Sun Jun 25 2022 15:50:09 GMT+0530 (IST)"
  }

Example 2: When no replication detected

MongoDB

db.getReplicationInfo()

Output:

{ "errmsg" : "replication not detected" }