Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/7014#discussion_r34590635
--- Diff: core/src/main/scala/org/apache/spark/TaskEndReason.scala ---
@@ -97,11 +101,17 @@ case class ExceptionFailure(
description: String,
stackTrace: Array[StackTraceElement],
fullStackTrace: String,
- metrics: Option[TaskMetrics])
+ metrics: Option[TaskMetrics],
+ exception: Option[Throwable] = None)
--- End diff --
Okay - if it's not possible to preserve matching, let's just change it.
Adding fields will only break matching and shouldn't hut users who just access
the fields. We might later on add some docs to suggest avoiding use of matching
on developer API's for this reason (no need to block this though).
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