Github user suyanNone commented on the pull request:

    https://github.com/apache/spark/pull/4055#issuecomment-113356815
  
    @andrewor14 The rest failed, because I change the 
`DagScheduler.executorLost` logical
    DAGSCheduler.scala:
    
    Origin version: Change mapOutPutTracker epoch for all stage as long as a 
Executor lost
    handleExecutorLost {
      ......
      for ((shuffleId, stage) <- shuffleToMapStage) {
               stage.removeOutputsOnExecutor(execId)
               val locs = stage.outputLocs.map(list => if (list.isEmpty) null 
else list.head).toArray
               mapOutputTracker.registerMapOutputs(shuffleId, locs, changeEpoch 
= true)
      ......
    }
    
    This patch version: For running Stage is not need to re-register 
mapOutTracker, so it will not change the epoch.
     ```
            for ((shuffleId, stage) <- shuffleToMapStage) {
              stage.removeOutputsOnExecutor(execId)
              if (!runningStages.contains(stage)) {
                val locs = stage.outputLocs.map(list => if (list.isEmpty) null 
else list.head).toArray
                mapOutputTracker.registerMapOutputs(shuffleId, locs, 
changeEpoch = true)
              }
            }
    ```


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