Github user sarutak commented on a diff in the pull request:
https://github.com/apache/spark/pull/10663#discussion_r49167186
--- Diff: core/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala ---
@@ -100,7 +101,19 @@ private[ui] class StagePage(parent: StagesTab) extends
WebUIPage("stage") {
val parameterTaskPrevPageSize =
request.getParameter("task.prevPageSize")
val taskPage = Option(parameterTaskPage).map(_.toInt).getOrElse(1)
- val taskSortColumn =
Option(parameterTaskSortColumn).getOrElse("Index")
+ val taskSortColumn = Option(parameterTaskSortColumn).map {
+ sortColumn =>
+ // If sortColumn contains "/", `getParameter("task.sort")` will
return
+ // "%252F" when yarn mode. we need additional decode.
+ // See also SPARK-4313, YARN-2844.
--- End diff --
How about say like as follows?
```
// SPARK-12708
// Due to YARN-2844, "/" in the url will be encoded to "%252F" when
// running in yarn mode. `request.getParameter("task.sort")` will return
// "%252F". Therefore we need to decode it until we get the real id.
// SPARK-4313 is similar to this issue.
```
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