Hi,

We use percona backup for mongodb to take logical backups and the backup got failed with below error:

oplog: unable to upload chunk {1662454473 1}.{1662623412 5}: read data: oplog has insufficient range, some records since the last saved ts {1662454473 1} are missing

Solution provided is to resize the oplog.

So,We want to change the oplog size from 50 GB to 100GB on database ( primary/secondary/Hidden nodes).

Where these oplog storage should reside, on the filesystem storage or the system memory?

Also what should be the impact on overall database performance if we increase the oplog.

please clarify.

MongoDB server version: 4.4.13

Thanks,

Ranjith.