Github user sryza commented on a diff in the pull request:
https://github.com/apache/spark/pull/2968#discussion_r19931259
--- Diff: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala ---
@@ -249,7 +248,7 @@ class HadoopRDD[K, V](
&& bytesReadCallback.isDefined) {
recordsSinceMetricsUpdate = 0
val bytesReadFn = bytesReadCallback.get
- inputMetrics.bytesRead = bytesReadFn()
+ context.taskMetrics.inputMetrics.get.bytesRead = bytesReadFn()
--- End diff --
This change is a followup from SPARK-2621 that @pwendell asked to include
here. Since there's not consensus on the best way to do this, and it's not
really related to output metrics, I'm going to take this out.
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