Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/4020#discussion_r23130489
--- Diff: core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala
---
@@ -44,42 +44,62 @@ class TaskMetrics extends Serializable {
/**
* Host's name the task runs on
*/
- var hostname: String = _
-
+ private var _hostname: String = _
+ def hostname = _hostname
+ private[spark] def setHostname(value : String) = _hostname = value
--- End diff --
`Should be "value: String"` with no space (not sure why our style checks
didn't catch this).
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