Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/1549#discussion_r15326152
--- Diff:
core/src/main/scala/org/apache/spark/shuffle/hash/BlockStoreShuffleFetcher.scala
---
@@ -73,7 +74,8 @@ private[hash] object BlockStoreShuffleFetcher extends
Logging {
}
}
- val blockFetcherItr = blockManager.getMultiple(blocksByAddress,
serializer)
+ val shuffledBlocksByAddress = Random.shuffle(blocksByAddress)
--- End diff --
Could you use `Utils.randomize(X)` here?
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