Data lost or missing buckets due to subPath - cniackz/public GitHub Wiki

Objective:

To document how subPath can impact the ability for a user to find the buckets of a previous installation.

User Story:

  • Previous Tenant was installed with subPath as:
  ## Mount path where PV will be mounted inside container(s).
  mountPath: /export
  ## Sub path inside Mount path where MinIO stores data.
  subPath: /

or

  ## Mount path where PV will be mounted inside container(s).
  mountPath: /export
  ## Sub path inside Mount path where MinIO stores data.
  subPath: ""

  • Meaning buckets were located at /export folder

  • Then User changed the Tenant Spec and add subPath as /data as in our Helm chart:

  ## Mount path where PV will be mounted inside container(s).
  mountPath: /export
  ## Sub path inside Mount path where MinIO stores data.
  subPath: /data

  • As a result two .minio.sys are created and same PV can hold onto two different MinIO deployments.

  • Solution is to revert back to just / instead of /data because old buckets are in / and not in /data