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YARN-8196. Updated documentation for enabling YARN Service REST API. 

Contributed by Billie Rinaldi

(cherry picked from commit f64501fcdc9dfa2e9848db0fb4749c6bd4a54d7f)
This commit is contained in:
Eric Yang 2018-04-24 19:11:21 -04:00
parent 9209ebae18
commit 678e599879
1 changed files with 14 additions and 16 deletions
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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/yarn-service/QuickStart.md
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@ -18,10 +18,21 @@ This document describes how to deploy services on YARN using the YARN Service fr
<!-- MACRO{toc|fromDepth=0|toDepth=3} -->
## Start HDFS and YARN components
## Configure and start HDFS and YARN components
Start all the hadoop components HDFS, YARN as usual.
Start all the hadoop components for HDFS and YARN as usual.
To enable the YARN Service framework, add this property to `yarn-site.xml` and restart the ResourceManager or set the property before the ResourceManager is started.
This property is required for using the YARN Service framework through the CLI or the REST API.
```
<property>
<description>
Enable services rest api on ResourceManager.
</description>
<name>yarn.webapp.api-service.enable</name>
<value>true</value>
</property>
```
## Example service
Below is a simple service definition that launches sleep containers on YARN by writing a simple spec file and without writing any code.
@ -104,20 +115,7 @@ yarn app -destroy ${SERVICE_NAME}
## Manage services on YARN via REST API
YARN API Server REST API can be activated as part of the ResourceManager.
### Start Embedded API-Server as part of ResourceManager
For running inside ResourceManager, add this property to `yarn-site.xml` and restart ResourceManager.
```
<property>
<description>
Enable services rest api on ResourceManager.
</description>
<name>yarn.webapp.api-service.enable</name>
<value>true</value>
</property>
```
The YARN API Server REST API is activated as part of the ResourceManager when `yarn.webapp.api-service.enable` is set to true.
Services can be deployed on YARN through the ResourceManager web endpoint.