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https://issues.apache.org/jira/browse/YARN-7286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16199967#comment-16199967
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Varun Vasudev commented on YARN-7286:
-------------------------------------
The none approach makes best sense to me. The
DEFAULT_NM_DOCKER_CONTAINER_CAPABILITIES was added because it's unreasonable to
expect every user to specify capabilities. We should just call it out in the
documentation that "none" is a special property for us. As to lower-case vs
upper-case, the upper case is just a recommendation, we should go with whatever
we think makes sense.
> Add support for docker to have no capabilities
> ----------------------------------------------
>
> Key: YARN-7286
> URL: https://issues.apache.org/jira/browse/YARN-7286
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn
> Reporter: Eric Badger
> Assignee: Eric Badger
> Attachments: YARN-7286.001.patch, YARN-7286.002.patch,
> YARN-7286.003.patch
>
>
> Support for controlling capabilities was introduced in YARN-4258. However, it
> does not allow for the capabilities list to be NULL, since {{getStrings()}}
> will treat an empty value the same as it treats an unset property. So, a NULL
> list will actually give the default capabilities list.
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