Github user markhamstra commented on a diff in the pull request:
https://github.com/apache/spark/pull/186#discussion_r11090901
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -119,18 +122,32 @@ class DAGScheduler(
taskScheduler.setDAGScheduler(this)
/**
- * Starts the event processing actor. The actor has two
responsibilities:
+ * Starts the event processing actor within the supervisor. The
responsibility of the actor
*
- * 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.
+ * Waits for events like job submission, task finished, task failure
etc., and calls
+ * [[org.apache.spark.scheduler.DAGScheduler.processEvent()]] to process
them.
*/
- def start() {
- eventProcessActor = env.actorSystem.actorOf(Props(new Actor {
+ env.actorSystem.actorOf(Props(new Actor {
+
+ override val supervisorStrategy =
+ OneForOneStrategy() {
+ case x: Exception => {
+ logError("eventProcesserActor failed due to the error " +
x.getMessage + ", " +
+ "shutting down the SparkContext")
--- End diff --
nit: prefer string interpolation (e.g., s"yadda $yadda") over "yadda" +
yadda + "yadda".
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