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https://issues.apache.org/jira/browse/YARN-3928?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14630781#comment-14630781
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Rohith Sharma K S commented on YARN-3928:
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bq. Is there a way to launch application master on a specific host ? If we can 
not do this in a managed-AM-launcher? 
Currently , launching AM on specific host is not supported. Any AM RR sent in 
submissionContext will be masked to ANY resource i.e any hosts in the cluster.
You can use node label feature to specify the hosts where AM . 

bq. is it possible to achieve this in unmanaged-AM-launcher?
Since Unmanaged AM is not launched byRM, client can launch at any hosts in the 
cluster and register to AM.

> launch application master on specific host
> ------------------------------------------
>
>                 Key: YARN-3928
>                 URL: https://issues.apache.org/jira/browse/YARN-3928
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: yarn
>    Affects Versions: 2.6.0
>         Environment: Ubuntu 12.04
>            Reporter: Wenrui
>
> Hi, 
> Is there a way to launch application master on a specific host ?
> If we can not do this in a managed-AM-launcher? 
> then is it possible to achieve this in unmanaged-AM-launcher?
> I just find it's quite necessary to set application master on a specific host 
> in some  scenes.



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