Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/1056#discussion_r14865082
--- Diff: core/src/main/scala/org/apache/spark/executor/Executor.scala ---
@@ -341,4 +345,47 @@ private[spark] class Executor(
}
}
}
+
+ def stop() {
+ isStopped = true
+ threadPool.shutdown()
+ }
+
+ def startDriverHeartbeater() {
+ val interval = conf.getInt("spark.executor.heartbeatInterval", 2000)
+ val timeout = AkkaUtils.lookupTimeout(conf)
+ val retryAttempts = AkkaUtils.numRetries(conf)
+ val retryIntervalMs = AkkaUtils.retryWaitMs(conf)
+ val heartbeatReceiverRef =
AkkaUtils.makeDriverRef("HeartbeatReceiver", conf, env.actorSystem)
+
+ val t = new Thread() {
+ override def run() {
+ Thread.sleep(interval)
+
+ while (!isStopped) {
+ val tasksMetrics = new ArrayBuffer[(Long, TaskMetrics)]()
+ for (taskRunner <- runningTasks.values()) {
+ val task = taskRunner.task
+ Option(task).flatMap(_.metrics).foreach { metrics =>
+ tasksMetrics += ((taskRunner.taskId, metrics))
+ }
+ }
+
+ val message = Heartbeat(executorId, tasksMetrics.toArray,
+ env.blockManager.blockManagerId)
+ val reregister = !AkkaUtils.askWithReply[Boolean](message,
heartbeatReceiverRef,
+ retryAttempts, retryIntervalMs, timeout)
+ if (reregister) {
+ env.blockManager.reregister()
--- End diff --
You should probably add a warning here
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