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YARN-7056. [Partial backport] Document Resource Profiles feature. (Sunil G via wangda) 

Change-Id: I5f5d52cdf7aba4ac09684aab573e6916dbad183e
(cherry picked from commit 6b88cd1901)
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Wangda Tan 2017-09-07 10:07:35 -07:00 committed by Daniel Templeton
parent 4bf29910a8
commit 335e3a6334
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hadoop-project/src/site/site.xml
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<item name="Opportunistic Containers" href="hadoop-yarn/hadoop-yarn-site/OpportunisticContainers.html"/>
<item name="YARN Federation" href="hadoop-yarn/hadoop-yarn-site/Federation.html"/>
<item name="Shared Cache" href="hadoop-yarn/hadoop-yarn-site/SharedCache.html"/>
<item name="Resource Profiles" href="hadoop-yarn/hadoop-yarn-site/ResourceProfiles.html"/>
</menu>
<menu name="YARN REST APIs" inherit="top">

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hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/markdown/ResourceProfiles.md Normal file
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Hadoop: YARN Resource Types
===========================
Overview
--------
Resource types support in YARN helps to extend the YARN resource model to a more flexible model which makes it easier to add new countable resource­types. This solution also helps the users to submit jobs with ease to specify the resources they need.
Resource model of YARN
-----------------------
Resource Manager will load a new configuration file named `resource-types.xml` to determine the set of resource ­types for which scheduling is enabled. Sample XML will look like below.
```xml
<configuration>
<property>
<name>yarn.resource-types</name>
<value>resource1, resource2</value>
</property>
<property>
<name>yarn.resource-types.resource1.units</name>
<value>G</value>
</property>
</configuration>
```
Similarly, a new configuration file `node­-resources.xml` will also be loaded by Node Manager where the resource capabilities of a node can be specified.
```xml
<configuration>
<property>
<name>yarn.nodemanager.resource-type.resource1</name>
<value>5G</value>
</property>
<property>
<name>yarn.nodemanager.resource-type.resource2</name>
<value>2m</value>
</property>
</configuration>
```
Node Manager will use these custom resource types and will register it's capability to Resource Manager.
Configurations
-------------
Please note that, `resource-types.xml` and `node­-resources.xml` file also need to be placed in conf directory if new resources are to be added to YARN.
*In `resource-types.xml`*
| Configuration Property | Value | Description |
|:---- |:---- |:---- |
| `yarn.resource-types` | resource1 | Custom resource |
| `yarn.resource-types.resource1.units` | G | Default unit for resource1 type |
*In `node­-resources.xml`*
| Configuration Property | Value | Description |
|:---- |:---- |:---- |
| `yarn.nodemanager.resource-type.resource1` | 5G | Resource capability for resource named 'resource1'. |