Wangda Tan commented on YARN-3557:

Thanks for elaborate [~dian.fu], now I should understand what you proposal.

I think the only benefit of the script mechanism adding to RM is to 
periodically execute it, it seems not as important as node label script or 
health checker, etc. in NM side. 

I prefer to simply write an user script to retrieve labels and adding to RM via 
CLI/REST-API and periodically execute via command line, it will not adding 
extra complexity to YARN also.

> 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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