OPTIONS

db.getReplicationInfo()

Definition

db.getReplicationInfo()
Returns:A document with the status of the replica status, using data polled from the “oplog”. Use this output when diagnosing issues with replication.

Output

db.getReplicationInfo.logSizeMB

Returns the total size of the oplog in megabytes. This refers to the total amount of space allocated to the oplog rather than the current size of operations stored in the oplog.

db.getReplicationInfo.usedMB

Returns the total amount of space used by the oplog in megabytes. This refers to the total amount of space currently used by operations stored in the oplog rather than the total amount of space allocated.

db.getReplicationInfo.errmsg

Returns an error message if there are no entries in the oplog.

db.getReplicationInfo.oplogMainRowCount

Only present when there are no entries in the oplog. Reports a the number of items or rows in the oplog (e.g. 0).

db.getReplicationInfo.timeDiff

Returns the difference between the first and last operation in the oplog, represented in seconds.

Only present if there are entries in the oplog.

db.getReplicationInfo.timeDiffHours

Returns the difference between the first and last operation in the oplog, rounded and represented in hours.

Only present if there are entries in the oplog.

db.getReplicationInfo.tFirst

Returns a time stamp for the first (i.e. earliest) operation in the oplog. Compare this value to the last write operation issued against the server.

Only present if there are entries in the oplog.

db.getReplicationInfo.tLast

Returns a time stamp for the last (i.e. latest) operation in the oplog. Compare this value to the last write operation issued against the server.

Only present if there are entries in the oplog.

db.getReplicationInfo.now

Returns a time stamp that reflects reflecting the current time. The shell process generates this value, and the datum may differ slightly from the server time if you’re connecting from a remote host as a result. Equivalent to Date().

Only present if there are entries in the oplog.