Oplog Size / Persistent Volume Claim / Kubernetes

Ops and Admin Replication
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3

Hi @Tim_Pynegar and welcome to the community forum!!

Do you mind providing more details regarding your setup:

For the above mentioned deployment, is 1 TB shared among all three clusters or is this for all the three nodes.

  • Could you share the deployment/statefulset with persistent volume yaml files for the deployment.
  • MongoDB version for the deployment
  • is the 5% your specific requirement (which perhaps better be set in a config file), or are you discussing about the default MongoDB behaviour?

P.S. here are two things which can be noted for reference:

  1. Oplog can grow beyond their set size when the majority commit point is behind.

  2. The oplog is stored in a database called “local”, and it resides in the dbpath of the instance
    If the dbPath resides in a persistentVolume then the size of the entire database is bound by that volume, including the oplog size.

Thanks
Aasawari

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