HeartSaVioR commented on a change in pull request #31369:
URL: https://github.com/apache/spark/pull/31369#discussion_r568291356
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/state/StateStore.scala
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@@ -165,10 +165,18 @@ case class StateStoreMetrics(
object StateStoreMetrics {
def combine(allMetrics: Seq[StateStoreMetrics]): StateStoreMetrics = {
+ val distinctCustomMetrics =
allMetrics.flatMap(_.customMetrics.keys).distinct
+ val customMetrics = allMetrics.flatMap(_.customMetrics)
+ val combinedCustomMetrics = distinctCustomMetrics.map { customMetric =>
Review comment:
My understanding is that combine is only called with multiple elements,
where we expect these elements will have same custom metrics (as these are from
state store provider). Please correct me if I'm missing here.
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