mridulm commented on a change in pull request #32007:
URL: https://github.com/apache/spark/pull/32007#discussion_r626212871
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File path: core/src/main/scala/org/apache/spark/storage/BlockId.scala
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@@ -87,6 +87,29 @@ case class ShufflePushBlockId(shuffleId: Int, mapIndex: Int,
reduceId: Int) exte
override def name: String = "shufflePush_" + shuffleId + "_" + mapIndex +
"_" + reduceId
}
+@DeveloperApi
+case class ShuffleMergedBlockId(appId: String, shuffleId: Int, reduceId: Int)
extends BlockId {
+ override def name: String = "mergedShuffle_" + appId + "_" + shuffleId + "_"
+ reduceId + ".data"
+}
+
+@DeveloperApi
+case class ShuffleMergedIndexBlockId(
+ appId: String,
+ shuffleId: Int,
+ reduceId: Int) extends BlockId {
+ override def name: String =
+ "mergedShuffle_" + appId + "_" + shuffleId + "_" + reduceId + ".index"
Review comment:
> Also, adding a new RPC doesn't seem to help a lot here according to
the discussion.
I agree, minimizing change to protocol should be better here.
Let us try without introducing RPC - it does not allow for clean separation
of concerns anyway (based on @otterc's clarification above) ... so making it
entirely managed at executors would be better.
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