Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/962#discussion_r13368954
--- Diff: core/src/main/scala/org/apache/spark/rdd/HadoopRDD.scala ---
@@ -189,13 +190,18 @@ class HadoopRDD[K, V](
context.stageId, theSplit.index, context.attemptId.toInt, jobConf)
reader = inputFormat.getRecordReader(split.inputSplit.value,
jobConf, Reporter.NULL)
+ val inputMetrics = new InputMetrics(DataReadMethod.Hdfs)
+ context.taskMetrics.inputMetrics = Some(inputMetrics)
+
// Register an on-task-completion callback to close the input stream.
context.addOnCompleteCallback{ () => closeIfNeeded() }
val key: K = reader.createKey()
val value: V = reader.createValue()
override def getNext() = {
try {
+ val beginPosition = reader.getPos()
finished = !reader.next(key, value)
+ inputMetrics.bytesRead += reader.getPos() - beginPosition
--- End diff --
Can we just count the size when iterator.close is called (or the method in
context)?
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