Github user mridulm commented on a diff in the pull request: https://github.com/apache/spark/pull/21440#discussion_r202149408 --- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala --- @@ -723,7 +728,9 @@ private[spark] class BlockManager( } if (data != null) { - return Some(new ChunkedByteBuffer(data)) + val chunkSize = + conf.getSizeAsBytes("spark.storage.memoryMapLimitForTests", Int.MaxValue.toString).toInt --- End diff -- nit: Make `chunkSize` as a `private` field in `BlockManager` instead of recomputing it each time ?
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