Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/1056#discussion_r15682191
--- Diff: core/src/main/scala/org/apache/spark/executor/Executor.scala ---
@@ -350,4 +353,47 @@ private[spark] class Executor(
}
}
}
+
+ def stop() {
+ isStopped = true
+ threadPool.shutdown()
+ }
+
+ def startDriverHeartbeater() {
+ val interval = conf.getInt("spark.executor.heartbeatInterval", 2000)
--- End diff --
should we turn this down to something like 10 seconds by default? Unlike in
Hadoop, we don't rely on this in order for tasks to start or finish. It might
be good to stay conservative here to make sure performance is not an issue. The
main value as I see it for this feature in general is to deal with long running
tasks anyways.
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