Why are Rados Gateway clients observing a brief IO disruption while doing minor Red Hat Ceph Storage upgrades?
Issue
- While performing a minor RHCS (Ceph) upgrade using the upgrade procedure available in the Ceph Upgrade Guide, it's possible that Rados Gateway clients might observe a brief IO disruption.
- Examples: Upgrading from 5.3z3 to 5.3z8 or 7.1z1 to 7.1z5.
- Why is this so? Is there any solution or workaround?
Environment
- Red Hat Ceph Storage version 5
- Red Hat Ceph Storage version 6
- Red Hat Ceph Storage version 7
- Red Hat Ceph Storage version 8
- Ceph Rados Gateway (RGW)
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