1996fanrui opened a new pull request, #759:
URL: https://github.com/apache/flink-kubernetes-operator/pull/759
## What is the purpose of the change
The ScalingTracking of autoscaler is wrong, it's always greater than
AutoScalerOptions#STABILIZATION_INTERVAL.
### Reason
When flink job isStabilizing, ScalingMetricCollector#updateMetrics will
return a empty metric history. In the JobAutoScalerImpl#runScalingLogic method,
if `collectedMetrics.getMetricHistory().isEmpty()` , we don't update the
ScalingTracking.
The default value of AutoScalerOptions#STABILIZATION_INTERVAL is 5 min, so
the restartTime is always greater than 5 min.
However, it's quick when we use rescale api.
## Brief change log
Update the scaling tracking even if the job is stabilizing.
## Verifying this change
Adding the test later.
## 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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