mridulm commented on code in PR #46904:
URL: https://github.com/apache/spark/pull/46904#discussion_r1633814403
##########
core/src/main/scala/org/apache/spark/util/AccumulatorV2.scala:
##########
@@ -166,7 +166,7 @@ abstract class AccumulatorV2[IN, OUT] extends Serializable {
if (atDriverSide) {
if (!isRegistered) {
throw new UnsupportedOperationException(
- "Accumulator must be registered before send to executor")
+ s"Accumulator '${this.name.get}' must be registered before send to
executor")
Review Comment:
name need not be defined - see `name.isDefined` below.
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