Dian Fu commented on YARN-3557:

Hi [~leftnoteasy]
In a large cluster, it will not only use labels TRUSTED/UNTRUSTED, but also 
lables GPU, FPGA, LINUX, WINDOWS, etc. If you need labels which require 
centralized configuration such as TRUSTED/UNTRUSTED, then all other labels will 
have to be configured in centralized way. But labels such as GPU, LINUX, 
WINDOWS are more suitable for configured in distributed way.

> 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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