hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/YarnUI2.md

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Hadoop: YARN-UI V2
=================

Prerequisites
-------------

If you run RM locally in your computer for test purpose, you need the following things properly installed.

- Install Node.js with NPM: https://nodejs.org/download
- After Node.js installed, install `corsproxy`: `npm install -g corsproxy`.


Configurations
-------------

*In yarn-site.xml*

| Configuration Property | Description |
|:---- |:---- |
| `yarn.resourcemanager.webapp.ui2.enable` | In the server side it indicates whether the new YARN-UI v2 is enabled or not. Defaults to `false`. |
| `yarn.resourcemanager.webapp.ui2.address` | Specify the address of ResourceManager and port which host YARN-UI v2, defaults to `localhost:8288`. |

*In $HADOOP_PREFIX/share/hadoop/yarn/webapps/rm/config/configs.env*

- Update timelineWebAddress and rmWebAddress to the actual addresses run resource manager and timeline server
- If you run RM locally in you computer just for test purpose, you need to keep `corsproxy` running. Otherwise, you need to set `localBaseAddress` to empty.

Use it
-------------
Open your browser, go to `rm-address:8288` and try it!