Github user pwendell commented on a diff in the pull request: https://github.com/apache/spark/pull/2076#discussion_r16628876 --- Diff: core/src/main/scala/org/apache/spark/CacheManager.scala --- @@ -68,7 +68,8 @@ private[spark] class CacheManager(blockManager: BlockManager) extends Logging { // Otherwise, cache the values and keep track of any updates in block statuses val updatedBlocks = new ArrayBuffer[(BlockId, BlockStatus)] val cachedValues = putInBlockManager(key, computedValues, storageLevel, updatedBlocks) - context.taskMetrics.updatedBlocks = Some(updatedBlocks) + val metrics = context.taskMetrics --- End diff -- Good catch on this one. Can you write a unit test that exposes this issue?
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