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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/03/09 11:29:38 UTC
[GitHub] [spark] cloud-fan commented on a change in pull request #27604:
[SPARK-30849][CORE][SHUFFLE]Fix application failed due to failed to get
MapStatuses broadcast block
cloud-fan 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_r389603104
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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]) =>
+ mapStatuses.clear()
Review comment:
Is it OK to clear out all the map status? Shouldn't we only drop the data of the current shuffle id?
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