Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/2944#discussion_r19521370
--- Diff:
core/src/main/scala/org/apache/spark/storage/BlockManagerMasterActor.scala ---
@@ -412,6 +415,17 @@ class BlockManagerMasterActor(val isLocal: Boolean,
conf: SparkConf, listenerBus
Seq.empty
}
}
+
+ private def getActorSystemHostPortForExecutor(executorId: String):
Option[(String, Int)] = {
--- End diff --
This verbosely-named method is the big "hack" for enabling driver ->
executor RPC. Basically, I needed to have a way to address the remote
`ExecutorActor` from the driver. Here, we rely on the fact that every executor
registers a BlockManager actor with the BlockManagerMasterActor and that there
is only one actor system per executor / driver.
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