GitHub user nblintao opened a pull request:
https://github.com/apache/spark/pull/14461
[SPARK-16856] [WEBUI] [CORE] Link application summary page and detail page
to the master page
## What changes were proposed in this pull request?
1. Added a "**Back to Master**" link on Executor Page of Application
**Detail** UI, if the application is run in standalone mode.
1. Added a "**Back to Master**" link on Application **Summary** Page of
Master UI.
The links link to the main page of Master UI.
## How was this patch tested?
- Run Spark as a "local cluster" by `./bin/spark-shell
--master=local-cluster[2,1,1024]`.
- Then view the Executor Page on Application Detail UI
(http://192.168.1.104:4040/executors/). Users could go to the Master Page by
the link "**Back to Master**" on that page.

- Select one application on the Master Page to get into the Application
Summary Page. Users could go back to the Master Page by the link "**Back to
Master**" on that page.

You can merge this pull request into a Git repository by running:
$ git pull https://github.com/nblintao/spark linkMasterPage
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/14461.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #14461
----
commit f35afa215a214d1b5ff8296e5e20b00044ee9f02
Author: Tao Lin <[email protected]>
Date: 2016-08-02T16:09:22Z
link application page to master page
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