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YARN-10020. Fix build instruction of hadoop-yarn-ui. (#1750)

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Masatake Iwasaki 2019-12-18 13:34:12 +09:00 committed by GitHub
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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-ui/README.md
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@ -21,7 +21,13 @@ The YARN UI is an Ember based web-app that provides visualization of the applica
## Configurations
* You can point the UI to custom locations by setting the environment variables in `src/main/webapp/config/configs.env`
You can point the UI to custom locations by setting the environment variables in `src/main/webapp/config/configs.env`.
In order to make the UI running on Ember server (started by `yarn start`)
work with independently running ResouceManager,
you need to enable CORS by setting `hadoop.http.cross-origin.enabled` to true
and adding `org.apache.hadoop.security.HttpCrossOriginFilterInitializer`
to `hadoop.http.filter.initializers` in core-site.xml of the ResourceManager.
## Development
@ -32,7 +38,7 @@ All the following commands must be run inside `src/main/webapp`.
You will need the following things properly installed on your computer.
* Install [Yarn](https://yarnpkg.com) v0.21.3
* Install [Bower](http://bower.io/) v1.7.7
* Install [Bower](http://bower.io/) v1.8.8
* Install all dependencies by running `yarn install` & `bower install`
### Running UI
@ -62,3 +68,22 @@ YARN UI has replaced NPM with Yarn package manager. And hence Yarn would be used
### Adding new routes (pages), controllers, components etc.
* Use ember-cli blueprint generator - [Ember CLI](http://ember-cli.com/extending/#generators-and-blueprints)
### Building with Maven
[YARN-6278](https://issues.apache.org/jira/browse/YARN-6278)
added `yarn-ui` profile to pom.xml leveraging
[frontend-maven-plugin](https://github.com/eirslett/frontend-maven-plugin) which
automatically installs Node.js and Yarn locally under target/webapp directory.
After building yarn-ui by `mvn package -Pyarn-ui`, you can reuse
the locally installed Node.js and Yarn instead of manually installing them.
```
$ mvn package -Pyarn-ui
$ export PATH=$PWD/target/webapp/node:$PATH
$ export YARNJS=$PWD/target/webapp/node/yarn/dist/bin/yarn.js
$ cd src/main/webapp/
$ node $YARNJS install
$ node node_modules/.bin/bower install
$ node $YARNJS start
```