Github user a1k0n commented on a diff in the pull request:
https://github.com/apache/spark/pull/11505#discussion_r55241498
--- Diff: core/src/main/scala/org/apache/spark/MapOutputTracker.scala ---
@@ -376,8 +376,6 @@ private[spark] class MapOutputTrackerMaster(conf:
SparkConf)
* @param numReducers total number of reducers in the shuffle
* @param fractionThreshold fraction of total map output size that a
location must have
* for it to be considered large.
- *
- * This method is not thread-safe.
--- End diff --
I don't see any reason to believe it's not thread-safe; it's kind of
neither explicitly thread-safe nor explicitly unsafe IMO. It's possible that
individual `status` entries might change their size from underneath this
function, but I don't see any problem with that. I am not necessarily the best
person to ask, though.
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