Github user gengliangwang commented on a diff in the pull request: https://github.com/apache/spark/pull/20013#discussion_r159844819 --- Diff: core/src/main/scala/org/apache/spark/status/AppStatusListener.scala --- @@ -848,7 +853,7 @@ private[spark] class AppStatusListener( } stages.foreach { s => - val key = s.id + val key = Array(s.info.stageId, s.info.attemptId) --- End diff -- Use a case class instead? Or create a function `xxxKey` and return the Array/Tuple. Using `Array(s.info.stageId, s.info.attemptId)` in several places looks not robust enough
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