Github user Ngone51 commented on a diff in the pull request: https://github.com/apache/spark/pull/21079#discussion_r181938225 --- Diff: core/src/main/scala/org/apache/spark/scheduler/ShuffleMapTask.scala --- @@ -113,3 +118,24 @@ private[spark] class ShuffleMapTask( override def toString: String = "ShuffleMapTask(%d, %d)".format(stageId, partitionId) } + +object ShuffleMapTask extends Logging { + private val cache = CacheBuilder.newBuilder() --- End diff -- Do we need to clear this `cache` at the end of a app ?
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