Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/246#discussion_r11190015
--- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala
---
@@ -505,6 +505,21 @@ class DAGScheduler(
}
/**
+ * Cancel all jobs associated with a running or scheduled stage.
+ */
+ def cancelStage(stageId: Int) {
--- End diff --
Also, it would be good to chance the handleJobCancellation() method to
accept a string exceptionMessage parameter to use when creating the
SparkException. For the normal case it can stay as "Job X cancelled", but for
this case we can say "Job X cancelled because stage Y was cancelled" to make it
more clear to the user what's going on.
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