Eric Yang commented on YARN-7781:

[~gsaha] Thank you for updating the example.  YARN still has performance 
limitations in heterogeneous environment.  I don't think we want to mix Linux 
and Windows in nodes attributes example.  It is probably better to list all 
nodes as the same OS type to prevent misleading the reader at this time.  Small 
nitpick, There is no explanation for fault_domain.  I did not understand this 
initially.  I guess it's arbitrary key value pair.  I wonder if tagging node 
with "cpu":"intel" or "cpu":"amd" for node attributes can be easier for reader 
to consume?  

> Update YARN-Services-Examples.md to be in sync with the latest code
> -------------------------------------------------------------------
>                 Key: YARN-7781
>                 URL: https://issues.apache.org/jira/browse/YARN-7781
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Gour Saha
>            Assignee: Gour Saha
>            Priority: Major
>         Attachments: YARN-7781.01.patch, YARN-7781.02.patch, 
> YARN-7781.03.patch, YARN-7781.04.patch, YARN-7781.05.patch
> Update YARN-Services-Examples.md to make the following additions/changes:
> 1. Add an additional URL and PUT Request JSON to support flex:
> Update to flex up/down the no of containers (instances) of a component of a 
> service
> PUT URL – http://localhost:8088/app/v1/services/hello-world
> PUT Request JSON
> {code}
> {
>   "components" : [ {
>     "name" : "hello",
>     "number_of_containers" : 3
>   } ]
> }
> {code}
> 2. Modify all occurrences of /ws/ to /app/

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