Github user squito commented on a diff in the pull request: https://github.com/apache/spark/pull/16620#discussion_r99618027 --- Diff: core/src/test/scala/org/apache/spark/scheduler/DAGSchedulerSuite.scala --- @@ -2161,6 +2161,96 @@ class DAGSchedulerSuite extends SparkFunSuite with LocalSparkContext with Timeou } } + test("[SPARK-19263] DAGScheduler should avoid sending conflicting task set") { --- End diff -- Can we make this test name a bit more specific, maybe "DAGScheduler should not submit multiple active tasksets, even with late completions from earlier stage attempts" (or if you have another suggestion)
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