Hi Flink Community,

I'm searching for docs about how the cleaning of checkpoints and savepoints
actually work.

I'm interested particularly in the cases when the user has `NATIVE` format
(incremental savepoint). Somehow, when using NATIVE format, the number of
savepoints kept are not matching the savepoint parameters like :
```
  ["kubernetes.operator.savepoint.history.max.age"] = "7d"
  ["kubernetes.operator.savepoint.history.max.count"] = "14"
```

Also, I would like to understand better when the checkpoints are cleaned.
According to
https://nightlies.apache.org/flink/flink-docs-master/docs/ops/state/checkpoints/
the checkpoints are cleaned when a program is cancelled. What happens if a
user suspends and then restores the job? Or when a user upgrades the job?
Are the checkpoints also cleaned in this situation?

Thanks so much for you time
-Rodrigo

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