SuccessChanges

Summary

  1. [SPARK-24704][WEBUI] Fix the order of stages in the DAG graph (commit: 306e881b62eb112f8014219098eb97f7cbe75e98) (details)
Commit 306e881b62eb112f8014219098eb97f7cbe75e98 by vanzin
[SPARK-24704][WEBUI] Fix the order of stages in the DAG graph
## What changes were proposed in this pull request?
Before:
![wx20180630-155537](https://user-images.githubusercontent.com/1438757/42123357-2c2e2d84-7c83-11e8-8abd-1c2860f38783.png)
After:
![wx20180630-155604](https://user-images.githubusercontent.com/1438757/42123359-32fae990-7c83-11e8-8a7b-cdcee94f9123.png)
## How was this patch tested?
Manual tests.
Author: Stan Zhai <mail@stanzhai.site>
Closes #21680 from stanzhai/fix-dag-graph.
(cherry picked from commit 772060d0940a97d89807befd682a70ae82e83ef4)
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
(commit: 306e881b62eb112f8014219098eb97f7cbe75e98)
The file was modifiedcore/src/main/scala/org/apache/spark/status/AppStatusStore.scala (diff)