Github user sryza commented on a diff in the pull request:
https://github.com/apache/spark/pull/2504#discussion_r24645659
--- Diff: core/src/main/scala/org/apache/spark/Aggregator.scala ---
@@ -54,14 +55,13 @@ case class Aggregator[K, V, C] (
}
combiners.iterator
} else {
- val combiners = new ExternalAppendOnlyMap[K, V, C](createCombiner,
mergeValue, mergeCombiners)
- combiners.insertAll(iter)
- // Update task metrics if context is not null
// TODO: Make context non optional in a future release
- Option(context).foreach { c =>
- c.taskMetrics.memoryBytesSpilled += combiners.memoryBytesSpilled
- c.taskMetrics.diskBytesSpilled += combiners.diskBytesSpilled
- }
+ val spillMetrics = Option(context).map(
+ _.taskMetrics.getOrCreateShuffleReadSpillMetrics()).getOrElse(new
WriteMetrics())
--- End diff --
Ah yeah, looks like this is a copy/paste mistake. In this path, I think
we're always on the map side, so the call should just be
`getOrCreateShuffleWriteSpillMetrics`.
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