[ERROR: get backup files: create backupCursor: (Location50917) Oplog rolled over while establishing the backup cursor

MongoDB Percona Server for MongoDB
1

Hi,

I am facing the below error while starting a physical backup in psmdb 6.0.20-17 and the pbm version is 2.91

[ERROR: get backup files: create backupCursor: (Location50917) Oplog rolled over while establishing the backup cursor.

Also I have enough oplogs

actual oplog size

‘160000 MB’

configured oplog size

‘160000 MB’

log length start to end

‘374871 secs (104.13 hrs)’

oplog first event time

‘Thu Apr 10 2025 04:19:45 GMT+0700 (Western Indonesia Time)’

oplog last event time

‘Mon Apr 14 2025 12:27:36 GMT+0700 (Western Indonesia Time)’

now

‘Mon Apr 14 2025 12:27:39 GMT+0700 (Western Indonesia Time)’

2

Hi, can you check oplog stats on all members of the replica set. It is possible the server picked by PBM to do the backup has smaller oplog configured? also check pbm agent logs for more clues.