Gyula Fora created FLINK-30527:
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Summary: Last-state suspend followed by flinkVersion change may
lead to state loss
Key: FLINK-30527
URL: https://issues.apache.org/jira/browse/FLINK-30527
Project: Flink
Issue Type: Bug
Components: Kubernetes Operator
Affects Versions: kubernetes-operator-1.3.0, kubernetes-operator-1.2.0
Reporter: Gyula Fora
We do not check flink version changes on recovery, so if the user suspended the
job using last-state mode (or that was the only mode available) and then
subsequently the flinkVersion is changed to a non-HA compatible version, the
job would be restored using last-state and state would be lost.
In these cases we should set an error in the Flink resource instructing the
user that changing version is not allowed at that point.
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