How to temporarily stop a broker in clusters

[guwei0kanyun]

Hi, If I want to temporarily stop a broker in the clusters, and after one hour, restart the broker and expect it can go back to the cluster.
How can i accomplish it?

[scholzj]

You can do it in the following steps:

1. Pause the reconciliation of the Kafka CR with the annotation
2. Delete the StrimziPodSet (do non-cascading deletion if you want to keep the pods running)
3. Delete the Pod of the broker you want to stop

Once you are done, remove the pause annotation from the Kafka CR and the operator will do the rest. Keep in mind that during this the cluster will not be managed by the operator so all kind of things can happen.

[guwei0kanyun]

I appreciate for your answer.

Regarding Step 2: "Delete the StrimziPodSet (do non-cascading deletion if you want to keep the pods running)", if I do not delete the StrimziPodSet and proceed directly to Step 3, will the K8s cluster automatically reschedule and restart the pods deleted in Step 3

Is my understanding correct?

[scholzj]

Yes, correct. Without the step two, the Pods will be recreated.

[guwei0kanyun]

I see. Thank you very much !