Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/6200#discussion_r30455086
--- Diff: core/src/main/scala/org/apache/spark/rpc/akka/AkkaRpcEnv.scala ---
@@ -247,6 +249,10 @@ private[spark] class AkkaRpcEnvFactory extends
RpcEnvFactory {
}
}
+private[akka] object AkkaRpcEnv {
+ val askExecutionContext =
ExecutionContext.fromExecutorService(MoreExecutors.sameThreadExecutor())
--- End diff --
Does this mean that ask messages will just block the calling thread?
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