vanzin commented on a change in pull request #25299: [SPARK-27651][Core] Avoid
the network when shuffle blocks are fetched from the same host
URL: https://github.com/apache/spark/pull/25299#discussion_r312674806
##########
File path:
core/src/main/scala/org/apache/spark/storage/BlockManagerMessages.scala
##########
@@ -97,6 +97,13 @@ private[spark] object BlockManagerMessages {
case class GetLocationsAndStatus(blockId: BlockId, requesterHost: String)
extends ToBlockManagerMaster
+ case class GetLocalDirs(executorIds: Array[String]) extends
ToBlockManagerMaster
+
+ /**
+ * The response message of `GetLocalDirs` request.
+ */
+ case class BlockManagerLocalDirs(localDirs: Map[String, Array[String]])
Review comment:
Do you need this message? Can't you just return `Map[String, Array[String]]`
directly from the RPC?
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