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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7286) Add support for docker to have no capabilities
Date Mon, 09 Oct 2017 20:04:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16197615#comment-16197615
] 

Jason Lowe commented on YARN-7286:
----------------------------------

Thanks for the patch!

The description of the property in yarn-default.xml should be updated to document how a user
requests no capabilities.  As it is now the user will likely set this to an empty value and
not realize they're getting quite a few capabilities by default.

It would be nice to cleanup the checkstyle issues.

> 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
>
>
> 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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