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https://issues.apache.org/jira/browse/YARN-6620?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16198947#comment-16198947
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Wangda Tan commented on YARN-6620:
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Thanks for the review, [~sunilg].
For #1, The JIRA is YARN-7159. I'm not sure if it is a valid use case for
client to define different unit / type for resource-types.xml, and in YARN-7307
we're considering to remove client-side resource-type.xml. Let's discuss more
on the related JIRAs.
For #2, It might be better to rename "mandatory" to "first-class", so once FPGA
support added to YARN, it is a first-class resource instead of mandatory
resources. I think it might be valuable to have a list of first class resources
supported by YARN, and we don't allow client to change core properties
(includes unit and type, not include min/max value). With this we can have
better out-of-box user experiences because most use cases should be addressed
by first-class resources.
To me NUMA is a little different here, today we don't support NUMA as a
separate resource, instead it is additional affinity for known resource types
(cpu/memory). So before we want to support centralized NUMA allocation in
RM/scheduler, we don't need to model NUMA as a separate resource type. And once
we need to do that, some refactoring need to be done to existing resource api
since it cannot describe hierarchy and relations between resource units.
> [YARN-6223] NM Java side code changes to support isolate GPU devices by using
> CGroups
> -------------------------------------------------------------------------------------
>
> Key: YARN-6620
> URL: https://issues.apache.org/jira/browse/YARN-6620
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Wangda Tan
> Assignee: Wangda Tan
> Attachments: YARN-6620.001.patch, YARN-6620.002.patch,
> YARN-6620.003.patch, YARN-6620.004.patch, YARN-6620.005.patch,
> YARN-6620.006-WIP.patch, YARN-6620.007.patch, YARN-6620.008.patch,
> YARN-6620.009.patch, YARN-6620.010.patch, YARN-6620.011.patch,
> YARN-6620.012.patch, YARN-6620.013.patch, YARN-6620.014.patch,
> YARN-6620.015.patch, YARN-6620.016.patch, YARN-6620.017.patch
>
>
> This JIRA plan to add support of:
> 1) GPU configuration for NodeManagers
> 2) Isolation in CGroups. (Java side).
> 3) NM restart and recovery allocated GPU devices
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