Github user markhamstra commented on a diff in the pull request:
https://github.com/apache/spark/pull/186#discussion_r11068295
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -119,18 +122,31 @@ class DAGScheduler(
taskScheduler.setDAGScheduler(this)
/**
- * Starts the event processing actor. The actor has two
responsibilities:
+ * Starts the event processing actor within the supervisor. The actor
has two responsibilities:
*
* 1. Waits for events like job submission, task finished, task failure
etc., and calls
* [[org.apache.spark.scheduler.DAGScheduler.processEvent()]] to
process them.
* 2. Schedules a periodical task to resubmit failed stages.
- *
- * NOTE: the actor cannot be started in the constructor, because the
periodical task references
- * some internal states of the enclosing
[[org.apache.spark.scheduler.DAGScheduler]] object, thus
- * cannot be scheduled until the
[[org.apache.spark.scheduler.DAGScheduler]] is fully constructed.
*/
- def start() {
- eventProcessActor = env.actorSystem.actorOf(Props(new Actor {
+ env.actorSystem.actorOf(Props(new Actor {
+
+ override val supervisorStrategy =
+ OneForOneStrategy() {
+ case x: Exception => {
--- End diff --
Needs logging since it is still important to tell the user as much as we
can about what went wrong.
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