liupc 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_r389577170
##########
File path: core/src/main/scala/org/apache/spark/MapOutputTracker.scala
##########
@@ -824,11 +825,15 @@ private[spark] class MapOutputTrackerWorker(conf:
SparkConf) extends MapOutputTr
endPartition: Int): Iterator[(BlockManagerId, Seq[(BlockId, Long,
Int)])] = {
logDebug(s"Fetching outputs for shuffle $shuffleId, mappers
$startMapIndex-$endMapIndex" +
s"partitions $startPartition-$endPartition")
- val statuses = getStatuses(shuffleId, conf)
try {
+ val statuses = getStatuses(shuffleId, conf)
MapOutputTracker.convertMapStatuses(
shuffleId, startPartition, endPartition, statuses, startMapIndex,
endMapIndex)
} catch {
+ case e: IOException if
+
Throwables.getCausalChain(e).asScala.exists(_.isInstanceOf[BlockNotFoundException])
=>
+ mapStatuses.clear()
Review comment:
@cloud-fan do you mean put these codes in `getStatuses` ? Yes, I think it's
more clear. I'll update.
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