Github user nongli commented on a diff in the pull request: https://github.com/apache/spark/pull/11534#discussion_r55279346 --- Diff: core/src/main/scala/org/apache/spark/storage/BlockManager.scala --- @@ -422,108 +462,52 @@ private[spark] class BlockManager( Option( shuffleBlockResolver.getBlockData(blockId.asInstanceOf[ShuffleBlockId]).nioByteBuffer()) } else { - doGetLocal(blockId, asBlockResult = false).asInstanceOf[Option[ByteBuffer]] + blockInfoManager.lockForReading(blockId) match { + case None => + logDebug(s"Block $blockId was not found") + None + case Some(info) => + Some(doGetLocalBytes(blockId, info)) + } } } - private def doGetLocal(blockId: BlockId, asBlockResult: Boolean): Option[Any] = { - blockInfoManager.lockForReading(blockId) match { - case None => - logDebug(s"Block $blockId was not found") - None - case Some(info) => - val level = info.level - logDebug(s"Level for block $blockId is $level") - - // Look for the block in memory + private def doGetLocalBytes(blockId: BlockId, info: BlockInfo): ByteBuffer = { + val level = info.level + logDebug(s"Level for block $blockId is $level") + if (level.deserialized) { --- End diff -- Is this backwards? If the level is deserialized we serialize it? comment.
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