[GitHub] [spark] liupc commented on a change in pull request #27604: [SPARK-30849][CORE][SHUFFLE]Fix application failed due to failed to get MapStatuses broadcast block

[GitBox <gi...@apache.org>]

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_r390108310
 
 

 ##########
 File path: core/src/main/scala/org/apache/spark/MapOutputTracker.scala
 ##########
 @@ -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 checked the code, seems it will not print any logs for `FetchFailedException` now?
   https://github.com/apache/spark/blob/a22994333ae129a3edaac75101fb4217fe8881c7/core/src/main/scala/org/apache/spark/executor/Executor.scala#L618

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org