Ngone51 commented on code in PR #46706:
URL: https://github.com/apache/spark/pull/46706#discussion_r1610878871
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core/src/main/scala/org/apache/spark/MapOutputTracker.scala:
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@@ -153,8 +152,10 @@ private class ShuffleStatus(
/**
* Mapping from a mapId to the mapIndex, this is required to reduce the
searching overhead within
* the function updateMapOutput(mapId, bmAddress).
+ *
+ * Exposed for testing.
*/
- private[this] val mapIdToMapIndex = new OpenHashMap[Long, Int]()
+ private[spark] val mapIdToMapIndex = new HashMap[Long, Int]()
Review Comment:
`OpenHashMap` doesn't support remove operation.
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