Github user suyanNone commented on the pull request: https://github.com/apache/spark/pull/4055#issuecomment-118257935 @squito you are right, taskset is set to zombie for not scheduling the rest task. you Testcase is good, and I just modify 1 place. ``` runEvent(ExecutorLost("exec-hostA")) runEvent(CompletionEvent(taskSets(1).tasks(0), FetchFailed(null, firstShuffleId, 2, 0, "Fetch failed"), null, null, createFakeTaskInfo(), null)) // so we resubmit stage 0, which completes happily scheduler.resubmitFailedStages() val stage0Resubmit = taskSets(2) assert(stage0Resubmit.stageId == 0) assert(stage0Resubmit.attempt === 1) ``` to ``` runEvent(ExecutorLost("exec-hostA")) runEvent(CompletionEvent(taskSets(1).tasks(0), FetchFailed(null, firstShuffleId, 2, 0, "Fetch failed"), null, null, createFakeTaskInfo(), null)) // so we resubmit stage 0, which completes happily Thread.sleep(1000) val stage0Resubmit = taskSets(2) assert(stage0Resubmit.stageId == 0) assert(stage0Resubmit.attempt === 1) ``` the reason for that because dagScheduler handle FetchFailed, it will ``` messageScheduler.schedule(new Runnable { override def run(): Unit = eventProcessLoop.post(ResubmitFailedStages) }, 200, TimeUnit.MILLISECONDS) ``` and runEvent is asyn, so need to wait some time to make sure that event was processed
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