sarutak commented on a change in pull request #32786:
URL: https://github.com/apache/spark/pull/32786#discussion_r648063958
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/CollectMetricsExec.scala
##########
@@ -33,8 +35,65 @@ case class CollectMetricsExec(
child: SparkPlan)
extends UnaryExecNode {
+ /**
+ * The specific implementation of AggregatingAccumulator for calling `merge`
on executor side.
+ */
+ private class MetricsAggregatingAccumulator(
Review comment:
This is to response to the
[comment](https://github.com/apache/spark/pull/32786#discussion_r647338534)
from @hvanhovell .
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