Github user ksakellis commented on a diff in the pull request:
https://github.com/apache/spark/pull/4067#discussion_r23066295
--- Diff: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala ---
@@ -213,18 +213,19 @@ class HadoopRDD[K, V](
logInfo("Input split: " + split.inputSplit)
val jobConf = getJobConf()
- val inputMetrics = new InputMetrics(DataReadMethod.Hadoop)
+ val inputMetrics = context.taskMetrics
+ .getInputMetricsForReadMethod(DataReadMethod.Hadoop)
+
// Find a function that will return the FileSystem bytes read by
this thread. Do this before
// creating RecordReader, because RecordReader's constructor might
read some bytes
- val bytesReadCallback = if
(split.inputSplit.value.isInstanceOf[FileSplit]) {
- SparkHadoopUtil.get.getFSBytesReadOnThreadCallback(
- split.inputSplit.value.asInstanceOf[FileSplit].getPath, jobConf)
- } else {
- None
- }
- if (bytesReadCallback.isDefined) {
- context.taskMetrics.inputMetrics = Some(inputMetrics)
- }
+ val bytesReadCallback = inputMetrics.bytesReadCallback.orElse(
+ split.inputSplit.value match {
+ case split: FileSplit =>
+
SparkHadoopUtil.get.getFSBytesReadOnThreadCallback(split.getPath, jobConf)
+ case _ => None
+ }
+ )
+ inputMetrics.setBytesReadCallback(bytesReadCallback)
--- End diff --
This is from a previous commit.
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