Github user CodingCat commented on a diff in the pull request:
https://github.com/apache/spark/pull/186#discussion_r11930515
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -730,6 +588,100 @@ class DAGScheduler(
}
}
+ private[scheduler] def handleJobGroupCancelled(groupId: String) {
+ // Cancel all jobs belonging to this job group.
+ // First finds all active jobs with this group id, and then kill
stages for them.
+ val activeInGroup = activeJobs.filter(activeJob =>
+ groupId == activeJob.properties.get(SparkContext.SPARK_JOB_GROUP_ID))
+ val jobIds = activeInGroup.map(_.jobId)
+ jobIds.foreach(handleJobCancellation(_, "part of cancel job group"))
+ submitWaitingStages()
+ }
+
+ private[scheduler] def handleBeginEvent(task: Task[_], taskInfo:
TaskInfo) {
+ for (stage <- stageIdToStage.get(task.stageId); stageInfo <-
stageToInfos.get(stage)) {
+ if (taskInfo.serializedSize > DAGScheduler.TASK_SIZE_TO_WARN * 1024
&&
+ !stageInfo.emittedTaskSizeWarning) {
+ stageInfo.emittedTaskSizeWarning = true
+ logWarning(("Stage %d (%s) contains a task of very large " +
+ "size (%d KB). The maximum recommended task size is %d
KB.").format(
+ task.stageId, stageInfo.name, taskInfo.serializedSize / 1024,
+ DAGScheduler.TASK_SIZE_TO_WARN))
+ }
+ }
+ listenerBus.post(SparkListenerTaskStart(task.stageId, taskInfo))
+ submitWaitingStages()
--- End diff --
In my implementation, because all messages are moved to receive, no
processEvent anymore, I have to call this function in each handle*** function
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