How to verify the Statefulset (Persistent Storage) is really working.

[nk-gears]

Would like to know how to test in realtime whether the statefulset for the zookeeper and kafka are working.

This is what i did in GKE:

1.Deleted the PODS (zookeeper & kafka)
2. Recreated the pods by running the apply
3. I don't see the old topics which i created.

Am i missing something.?

Note : I also tried making the replica's to 0 instead of deleting the pods. Is this the right approach to test the statefulness using the the (pv/pvc) in Local and GKE.?

[solsson]

I'd really like to have an automated such test. The spec should be that you can delete everything but the namespace, and still get your topics back after re-apply. Upgrading from older releases is another matter.

If you lose persistence on scaling down to zero and then up again something is very flawed.