[GitHub] [spark] akpatnam25 commented on a diff in pull request #36601: [SPARK-38987][SHUFFLE] Throw FetchFailedException when merged shuffle blocks are corrupted and spark.shuffle.detectCorrupt is set to true

[GitBox]

akpatnam25 commented on code in PR #36601:
URL: https://github.com/apache/spark/pull/36601#discussion_r878406574


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core/src/main/scala/org/apache/spark/scheduler/DAGScheduler.scala:
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@@ -1885,6 +1885,14 @@ private[spark] class DAGScheduler(
               mapOutputTracker.
                 unregisterMergeResult(shuffleId, reduceId, bmAddress, 
Option(mapIndex))
             }
+          } else {
+            // Unregister the merge result of <shuffleId, reduceId> if
+            // the FetchFailed event contains a mapIndex of -1, and is not a
+            // MetaDataFetchException which is signified by bmAddress being 
null
+            if (bmAddress != null && pushBasedShuffleEnabled) {

Review Comment:
   added the assertion



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