Dian Fu commented on YARN-3557:

Hi [~Naganarasimha],
{quote}constraints should be supported to be added from both RM and NM and 
partitions (existing labels) should be allowed either by RM or NM{quote}
Agree with you that constraints should be supported to be added from both RM 
and RN. TRUSTED/UNTRUSTED are also more like constraints of a node. BTW, it 
seems that constraints support is already created(YARN-3409). 

> Support Intel Trusted Execution Technology(TXT) in YARN scheduler
> -----------------------------------------------------------------
>                 Key: YARN-3557
>                 URL: https://issues.apache.org/jira/browse/YARN-3557
>             Project: Hadoop YARN
>          Issue Type: New Feature
>            Reporter: Dian Fu
>         Attachments: Support TXT in YARN high level design doc.pdf
> Intel TXT defines platform-level enhancements that provide the building 
> blocks for creating trusted platforms. A TXT aware YARN scheduler can 
> schedule security sensitive jobs on TXT enabled nodes only. YARN-2492 
> provides the capacity to restrict YARN applications to run only on cluster 
> nodes that have a specified node label. This is a good mechanism that be 
> utilized for TXT aware YARN scheduler.

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