Github user kayousterhout commented on a diff in the pull request:
https://github.com/apache/spark/pull/2968#discussion_r19930010
--- Diff: core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala
---
@@ -171,6 +177,18 @@ case class InputMetrics(readMethod:
DataReadMethod.Value) {
/**
* :: DeveloperApi ::
+ * Metrics about writing output data.
+ */
+@DeveloperApi
+case class OutputMetrics() {
+ /**
+ * Total bytes written
+ */
+ var bytesWritten: Long = 0L
--- End diff --
Do you anticipate adding other things here later (like time blocked on
writing output data)? Or should this just be a long inside the metrics class
(rather than having those whole output metrics class)?
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