1996fanrui opened a new pull request, #920:
URL: https://github.com/apache/flink-kubernetes-operator/pull/920
## What is the purpose of the change
Get more details from FLINK-36535.
## Brief change log
[FLINK-36535][autoscaler] Optimize the scale down logic based on historical
parallelism
1. Using the maximum parallelism within the window instead of the latest
parallelism when scaling down
2. Never scale down when (currentTime - triggerTime) < scale-down.interval
## Verifying this change
This change added tests and can be verified as follows:
- Added the DelayedScaleDownTest
- Rewrite the `testRequiredScaleDownAfterInterval` to
`testScaleDownAfterInterval`
- Update the `AbstractAutoScalerStateStoreTest`, `JobVertexScalerTest` and
`ScalingExecutorTest`
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): no
- The public API, i.e., is any changes to the `CustomResourceDescriptors`:
no
- Core observer or reconciler logic that is regularly executed: no
## Documentation
- Does this pull request introduce a new feature? no
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