Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/10748#discussion_r49678132
--- Diff: core/src/main/scala/org/apache/spark/CacheManager.scala ---
@@ -126,67 +136,4 @@ private[spark] class CacheManager(blockManager:
BlockManager) extends Logging {
}
}
}
-
- /**
- * Cache the values of a partition, keeping track of any updates in the
storage statuses of
- * other blocks along the way.
- *
- * The effective storage level refers to the level that actually
specifies BlockManager put
- * behavior, not the level originally specified by the user. This is
mainly for forcing a
- * MEMORY_AND_DISK partition to disk if there is not enough room to
unroll the partition,
- * while preserving the the original semantics of the RDD as specified
by the application.
- */
- private def putInBlockManager[T](
--- End diff --
The idea behind deleting this block of code is the fact that
`MemoryStore.putIterator` seems to implement essentially the same logic, using
`unrollSafely` and falling back to disk when necessary.
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