Github user sitalkedia commented on a diff in the pull request:

    https://github.com/apache/spark/pull/17088#discussion_r103552476
  
    --- Diff: core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala 
---
    @@ -1331,7 +1332,7 @@ class DAGScheduler(
     
               // TODO: mark the executor as failed only if there were lots of 
fetch failures on it
               if (bmAddress != null) {
    -            handleExecutorLost(bmAddress.executorId, filesLost = true, 
Some(task.epoch))
    +            handleExecutorLost(bmAddress.executorId, slaveLost = true, 
Some(task.epoch))
    --- End diff --
    
    @kayousterhout - This change applies only when external shuffle service is 
enabled, in that case, a fetch failure would mean that the external shuffle 
service is unavailable, so we should remove all the output on that host, right? 
For case, when shuffle service is not enabled, this change should be a no-op.


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