kfaraz commented on code in PR #20708:
URL: https://github.com/apache/druid/pull/20708#discussion_r4377643397
##########
indexing-service/src/main/java/org/apache/druid/indexing/seekablestream/supervisor/autoscaler/CostBasedAutoScaler.java:
##########
@@ -463,6 +463,29 @@ static int[] computeValidTaskCounts(
return result.toIntArray();
}
+ /**
+ * Extracts the average processing rate (records per second) from the task
stats.
+ *
+ * @param taskStats the stats map from supervisor.getStats()
+ */
+ static double extractAvgProcessingRate(Map<String, Map<String, Object>>
taskStats)
+ {
+ if (taskStats == null || taskStats.isEmpty()) {
+ return -1.;
+ }
+
+ // First try using the running average if available
+ final double runningAverage = extractAutoscalerMetric(
+ taskStats,
+ SeekableStreamIndexTaskRunner.PROCESSING_RATE_RUNNING_AVG
+ );
+ if (runningAverage >= 0) {
Review Comment:
Hmm, yeah, I guess if we are handling mixed versions, might as well do it
right.
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