SuccessChanges

Summary

  1. [SPARKR] Match pyspark features in SparkR communication protocol (commit: 12717ba0edfa5459c9ac2085f46b1ecc0ee759aa) (details)
  2. [SPARK-25503][CORE][WEBUI] Total task message in stage page is ambiguous (commit: 9674d083eca9e1fe0f5e8ea63640f25c907017ec) (details)
Commit 12717ba0edfa5459c9ac2085f46b1ecc0ee759aa by hyukjinkwon
[SPARKR] Match pyspark features in SparkR communication protocol
(commit: 12717ba0edfa5459c9ac2085f46b1ecc0ee759aa)
The file was modifiedR/pkg/R/context.R (diff)
The file was modifiedcore/src/main/scala/org/apache/spark/api/r/RRDD.scala (diff)
The file was modifiedR/pkg/tests/fulltests/test_sparkSQL.R (diff)
The file was modifiedR/pkg/tests/fulltests/test_Serde.R (diff)
The file was modifiedcore/src/main/scala/org/apache/spark/api/r/RUtils.scala (diff)
Commit 9674d083eca9e1fe0f5e8ea63640f25c907017ec by dongjoon
[SPARK-25503][CORE][WEBUI] Total task message in stage page is ambiguous
## What changes were proposed in this pull request? Test steps :
  1) bin/spark-shell --conf spark.ui.retainedTasks=10
  2) val rdd = sc.parallelize(1 to 1000, 1000)
3)  rdd.count
Stage page tab in the UI will display 10 tasks, but display message is
wrong. It should reverse.
**Before fix :**
![webui_1](https://user-images.githubusercontent.com/23054875/45917921-8926d800-be9c-11e8-8da5-3998d07e3ccc.jpg)
**After fix**
![spark_web_ui2](https://user-images.githubusercontent.com/23054875/45917935-b4112c00-be9c-11e8-9d10-4fcc8e88568f.jpg)
## How was this patch tested?
Manually tested
Closes #22525 from shahidki31/SparkUI.
Authored-by: Shahid <shahidki31@gmail.com> Signed-off-by: Dongjoon Hyun
<dongjoon@apache.org>
(cherry picked from commit 615792da42b3ee3c5f623c869fada17a3aa92884)
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
(commit: 9674d083eca9e1fe0f5e8ea63640f25c907017ec)
The file was modifiedcore/src/main/scala/org/apache/spark/ui/jobs/StagePage.scala (diff)