xuanyuanking commented on a change in pull request #26040: [SPARK-9853][Core]
Optimize shuffle fetch of continuous partition IDs
URL: https://github.com/apache/spark/pull/26040#discussion_r335324891
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File path:
core/src/main/scala/org/apache/spark/network/netty/NettyBlockRpcServer.scala
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@@ -65,12 +65,30 @@ class NettyBlockRpcServer(
case fetchShuffleBlocks: FetchShuffleBlocks =>
val blocks = fetchShuffleBlocks.mapIds.zipWithIndex.flatMap { case
(mapId, index) =>
- fetchShuffleBlocks.reduceIds.apply(index).map { reduceId =>
- blockManager.getBlockData(
- ShuffleBlockId(fetchShuffleBlocks.shuffleId, mapId, reduceId))
+ if (!fetchShuffleBlocks.batchFetchEnabled) {
+ fetchShuffleBlocks.reduceIds(index).map { reduceId =>
+ blockManager.getBlockData(
+ ShuffleBlockId(fetchShuffleBlocks.shuffleId, mapId, reduceId))
+ }
+ } else {
+ val startAndEndId = fetchShuffleBlocks.reduceIds(index)
+ if (startAndEndId.length != 2) {
+ throw new IllegalStateException(s"Invalid shuffle fetch request:
" +
Review comment:
Thanks, done in d9ea5af.
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