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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