Ngone51 commented on a change in pull request #27604:
[SPARK-30849][CORE][SHUFFLE]Fix application failed due to failed to get
MapStatuses broadcast block
URL: https://github.com/apache/spark/pull/27604#discussion_r390195637
##########
File path: core/src/main/scala/org/apache/spark/MapOutputTracker.scala
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@@ -851,8 +852,16 @@ private[spark] class MapOutputTrackerWorker(conf:
SparkConf) extends MapOutputTr
var fetchedStatuses = mapStatuses.get(shuffleId).orNull
if (fetchedStatuses == null) {
logInfo("Doing the fetch; tracker endpoint = " + trackerEndpoint)
- val fetchedBytes =
askTracker[Array[Byte]](GetMapOutputStatuses(shuffleId))
- fetchedStatuses =
MapOutputTracker.deserializeMapStatuses(fetchedBytes, conf)
+ try {
+ val fetchedBytes =
askTracker[Array[Byte]](GetMapOutputStatuses(shuffleId))
+ fetchedStatuses =
MapOutputTracker.deserializeMapStatuses(fetchedBytes, conf)
+ } catch {
+ case e: IOException if
+
Throwables.getCausalChain(e).asScala.exists(_.isInstanceOf[BlockNotFoundException])
=>
Review comment:
> Maybe print logs at the `Executor` exception handling?
I don't understand what do you mean by this.
> I checked the code, seems it will not print any logs for
FetchFailedException now?
Yeah, but I think this's one is different. For me, I'd like to have a way to
distinguish these two fetch failure.
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