holdenk commented on a change in pull request #28708:
URL: https://github.com/apache/spark/pull/28708#discussion_r447247346
##########
File path:
core/src/main/scala/org/apache/spark/shuffle/IndexShuffleBlockResolver.scala
##########
@@ -148,6 +170,82 @@ private[spark] class IndexShuffleBlockResolver(
}
}
+ /**
+ * Write a provided shuffle block as a stream. Used for block migrations.
+ * ShuffleBlockBatchIds must contain the full range represented in the
ShuffleIndexBlock.
+ * Requires the caller to delete any shuffle index blocks where the shuffle
block fails to
+ * put.
+ */
+ override def putShuffleBlockAsStream(blockId: BlockId, serializerManager:
SerializerManager):
+ StreamCallbackWithID = {
+ val file = blockId match {
+ case ShuffleIndexBlockId(shuffleId, mapId, _) =>
+ getIndexFile(shuffleId, mapId)
+ case ShuffleDataBlockId(shuffleId, mapId, _) =>
+ getDataFile(shuffleId, mapId)
+ case _ =>
+ throw new Exception(s"Unexpected shuffle block transfer ${blockId} as
" +
Review comment:
sgtm
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