Gyula Fora created FLINK-27956:
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Summary: Kubernetes Operator Deployment strategy type should be
Recreate
Key: FLINK-27956
URL: https://issues.apache.org/jira/browse/FLINK-27956
Project: Flink
Issue Type: Bug
Components: Kubernetes Operator
Affects Versions: kubernetes-operator-1.0.0
Reporter: Gyula Fora
We should change the Deployment strategy.type from the default (RollingUpdate)
to Recreate to avoid potential problems when a new operator pod is deployed
during upgrade.
[https://kubernetes.io/docs/concepts/workloads/controllers/deployment/#strategy]
Only one operator pod is supposed to run at any given time to avoid any
errors/inconsistencies, and without HA/leader election, this setting is
necessary.
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