mridulm commented on a change in pull request #30934:
URL: https://github.com/apache/spark/pull/30934#discussion_r549049921
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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:
Given this bug, I am wondering if we want to refactor
`IndexShuffleBlockResolver` such that we can reuse it here as well ?
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