dongjoon-hyun commented on a change in pull request #30934:
URL: https://github.com/apache/spark/pull/30934#discussion_r549218772
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File path: core/src/main/scala/org/apache/spark/storage/FallbackStorage.scala
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@@ -158,7 +158,7 @@ object FallbackStorage extends Logging {
val name = ShuffleDataBlockId(shuffleId, mapId, NOOP_REDUCE_ID).name
val dataFile = new Path(fallbackPath, s"$appId/$shuffleId/$name")
val f = fallbackFileSystem.open(dataFile)
- val size = nextOffset - 1 - offset
+ val size = nextOffset - offset
logDebug(s"To byte array $size")
Review comment:
Maybe, for Apache Spark 3.2.0, @mridulm ? Currently, this PR is aiming
to provide this fix for Apache Spark 3.1.0 RC before next Monday.
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