Github user mengxr commented on a diff in the pull request:
https://github.com/apache/spark/pull/1132#discussion_r13984220
--- Diff:
core/src/main/scala/org/apache/spark/executor/CoarseGrainedExecutorBackend.scala
---
@@ -101,26 +106,33 @@ private[spark] object CoarseGrainedExecutorBackend {
workerUrl: Option[String]) {
SparkHadoopUtil.get.runAsSparkUser { () =>
- // Debug code
- Utils.checkHost(hostname)
-
- val conf = new SparkConf
- // Create a new ActorSystem to run the backend, because we can't
create a
- // SparkEnv / Executor before getting started with all our system
properties, etc
- val (actorSystem, boundPort) =
AkkaUtils.createActorSystem("sparkExecutor", hostname, 0,
- conf, new SecurityManager(conf))
- // set it
- val sparkHostPort = hostname + ":" + boundPort
- actorSystem.actorOf(
- Props(classOf[CoarseGrainedExecutorBackend], driverUrl,
executorId,
- sparkHostPort, cores),
- name = "Executor")
- workerUrl.foreach {
- url =>
- actorSystem.actorOf(Props(classOf[WorkerWatcher], url), name =
"WorkerWatcher")
- }
- actorSystem.awaitTermination()
-
+ // Debug code
+ Utils.checkHost(hostname)
+
+ // Bootstrap to fetch the driver's Spark properties.
+ val executorConf = new SparkConf
+ val (fetcher, _) = AkkaUtils.createActorSystem(
+ "driverPropsFetcher", hostname, 0, executorConf, new
SecurityManager(executorConf))
+ val driver = fetcher.actorSelection(driverUrl)
+ val timeout = new Timeout(5, TimeUnit.MINUTES)
+ val fut = Patterns.ask(driver, RetrieveSparkProps, timeout)
+ val props = Await.result(fut,
timeout.duration).asInstanceOf[Seq[(String, String)]]
+ fetcher.shutdown()
+
+ // Create a new ActorSystem to run the backend, because we can't
create a
--- End diff --
It requires changing `Executor`'s constructor and hence other backends like
mesos. This is not a new issue introduced in this PR. I removed props from
`RegisteredExecutor` message.
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