cloud-fan commented on code in PR #47197:
URL: https://github.com/apache/spark/pull/47197#discussion_r1663677608
##########
core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala:
##########
@@ -264,12 +264,37 @@ class TaskMetrics private[spark] () extends Serializable {
/**
* External accumulators registered with this task.
*/
- @transient private[spark] lazy val _externalAccums = new
CopyOnWriteArrayList[AccumulatorV2[_, _]]
+ @transient private[spark] lazy val _externalAccums = new
ArrayBuffer[AccumulatorV2[_, _]]
- private[spark] def externalAccums = _externalAccums.asScala
+ private[spark] def externalAccums: Seq[AccumulatorV2[_, _]] = withReadLock {
+ _externalAccums.toSeq
Review Comment:
can we double check if `ArrayBuffer#toSeq` is cheap?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
