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https://issues.apache.org/jira/browse/YARN-6592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16297925#comment-16297925
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Weiwei Yang commented on YARN-6592:
-----------------------------------

Thanks [~kkaranasos], is this umbrella depending on YARN-3409 (that one seems 
to be the umbrella to add node attributes)? I ams asking because I did not find 
any child tasks under this umbrella to manage node attributes and process 
constraints with respect to the attributes.

One more thing, except simple operator {{IN}} or {{NOT_IN}}, I think there are 
some more to be supported such as {{GT}} (greater than), {{GE}} (greater than 
or equal to), {{LT}} (less than), {{LE}} (less than or equal to). For example,

{code}
{target: node-attribute:diskNum GT 5, scope host}
{code}

allocate to node where its diskNum > 5. This is very useful for long running 
services.

> Rich placement constraints in YARN
> ----------------------------------
>
>                 Key: YARN-6592
>                 URL: https://issues.apache.org/jira/browse/YARN-6592
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Konstantinos Karanasos
>         Attachments: YARN-6592-Rich-Placement-Constraints-Design-V1.pdf
>
>
> This JIRA consolidates the efforts of YARN-5468 and YARN-4902.
> It adds support for rich placement constraints to YARN, such as affinity and 
> anti-affinity between allocations within the same or across applications.



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