Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/11747#discussion_r56310739
--- Diff:
core/src/test/scala/org/apache/spark/scheduler/SparkListenerSuite.scala ---
@@ -476,3 +480,19 @@ private class ListenerThatAcceptsSparkConf(conf:
SparkConf) extends SparkListene
var count = 0
override def onJobEnd(job: SparkListenerJobEnd): Unit = count += 1
}
+
+private class SlowShuffleManager(conf: SparkConf) extends
SortShuffleManager(conf) {
+
+ override val shuffleBlockResolver: IndexShuffleBlockResolver =
+ new SlowIndexShuffleBlockResolver(conf)
+
+ private class SlowIndexShuffleBlockResolver(conf: SparkConf,
+ _blockManager:
BlockManager = null)
+ extends IndexShuffleBlockResolver(conf, _blockManager) {
+
+ override def getBlockData(blockId: ShuffleBlockId): ManagedBuffer = {
+ Thread.sleep(1)
+ super.getBlockData(blockId)
+ }
+ }
+}
--- End diff --
I forget whether this will fail style checks without a newline at the end.
Content-wise, this looks good though
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