Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/962#discussion_r14152671
--- Diff: core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala
---
@@ -87,6 +93,29 @@ private[spark] object TaskMetrics {
def empty: TaskMetrics = new TaskMetrics
}
+/**
+ * :: DeveloperApi ::
+ * Method by which input data was read. Network means that the data was
read over the network
+ * from a remote block manager.
+ */
+@DeveloperApi
+private[spark] object DataReadMethod extends Enumeration with Serializable
{
+ type DataReadMethod = Value
+ val Memory, Disk, Hdfs, Network = Value
+}
+
+/**
+ * :: DeveloperApi ::
+ * Metrics about reading input data.
+ */
+@DeveloperApi
+case class InputMetrics(val readMethod: DataReadMethod.Value) {
--- End diff --
minor: no need to `val` here
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