Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/10835#discussion_r50786156
--- Diff: core/src/main/scala/org/apache/spark/TaskEndReason.scala ---
@@ -115,22 +118,34 @@ case class ExceptionFailure(
description: String,
stackTrace: Array[StackTraceElement],
fullStackTrace: String,
- metrics: Option[TaskMetrics],
- private val exceptionWrapper: Option[ThrowableSerializationWrapper])
+ exceptionWrapper: Option[ThrowableSerializationWrapper],
+ accumUpdates: Seq[AccumulableInfo] = Seq.empty[AccumulableInfo])
extends TaskFailedReason {
+ // For backward compatibility; this was replaced with `accumUpdates` in
Spark 2.0.
+ val metrics: Option[TaskMetrics] = {
+ if (accumUpdates.nonEmpty) {
--- End diff --
I appreciate that you didn't try to cram this all into a dense confusing
one-liner :+1:
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