gyfora commented on PR #357:
URL:
https://github.com/apache/flink-kubernetes-operator/pull/357#issuecomment-1232646931
@Grypse this seems like a fairly large architecture decision that we
underestimated at first. We would like to kindly ask you to prepare your
proposal in a FLIP format and post it on the DEV mailing list.
Please describe the following points in the FLIP:
- What is the benefit of using StatefulSet for TaskManagers?
- Does this only affect local recovery? What is the performance gain
compared to Deployments?
- What benefit do we have compared to the PVC available in the
podTemplate? Seems like ReadWriteMany PVCs already provide the same benefits
for Deployments
- What is the implication of TaskManager startup time? Deployments start
pods faster as they dont need to wait for termination
- Should we make Deployment / StatefulSet configurable?
- What is the benefit of using StatefulSet for JobManagers?
- What data would the jobmanager store in PVC? What is the performance
gain?
- Does this only affect state handles? That is very small data.
- Why can't we do this already with the podTemplate?
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