gyfora commented on code in PR #493:
URL:
https://github.com/apache/flink-kubernetes-operator/pull/493#discussion_r1056547504
##########
flink-kubernetes-operator/src/main/java/org/apache/flink/kubernetes/operator/autoscaler/ScalingMetricCollector.java:
##########
@@ -122,7 +130,15 @@ public CollectedMetrics getMetricsHistory(
// Add scaling metrics to history if they were computed successfully
scalingMetricHistory.put(clock.instant(), scalingMetrics);
- scalingInformation.updateMetricHistory(currentJobStartTs,
scalingMetricHistory);
+ scalingInformation.updateMetricHistory(currentJobUpdateTs,
scalingMetricHistory);
+
+ if (currentJobUpdateTs
+ .plus(stabilizationDuration)
+ .isAfter(clock.instant().minus(metricsWindowDuration))) {
Review Comment:
I would prefer to have a config setting for a minimum metrics window (that
should default to the metrics window), so that we can have quick scaling
decisions after stabilization.
Ideally users would use longer metrics windows (15-30 minutes) and a minimum
window of something much shorter like 5 mins.
This is very beneficial also for testing new changes to the algorithm, or
when tuning the paramaters.
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