Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/7268#discussion_r34648286
--- Diff: core/src/main/scala/org/apache/spark/MapOutputTracker.scala ---
@@ -124,10 +124,14 @@ private[spark] abstract class MapOutputTracker(conf:
SparkConf) extends Logging
}
/**
- * Called from executors to get the server URIs and output sizes of the
map outputs of
- * a given shuffle.
+ * Called from executors to get the server URIs and output sizes for
each shuffle block that
+ * needs to be read from a given reduce task.
*/
- def getServerStatuses(shuffleId: Int, reduceId: Int):
Array[(BlockManagerId, Long)] = {
+ def getMapSizesByExecutorId(shuffleId: Int, reduceId: Int)
--- End diff --
while you are at it, can you document what the long is? (i'm guessing it is
size of the block?)
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