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From "Konstantinos Karanasos (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8113) Update placement constraints doc with application namespace and inter-app constraints
Date Tue, 01 May 2018 18:32:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16459989#comment-16459989
] 

Konstantinos Karanasos commented on YARN-8113:
----------------------------------------------

Hi [~cheersyang]. I did some changes and uploaded a new version of the patch. Give it a look.

The most important changes I made:
* Fixed a bit the PlacementSpec grammar, because it was assuming only two constraints within
an AND/OR constraints, while I guess it is a list.
* Explained how to specify tag namespaces in the placementspec -- please check it is correct.
* Added examples of tag namespace usage.

BTW the current grammar assumes no nesting of constraints (as in an AND is a child of an OR,
etc.). Do we allow nesting in the latest version? If so, we have to update the grammar, because
at the moment it assumes a flat hierarchy.

 

> Update placement constraints doc with application namespace and inter-app constraints
> -------------------------------------------------------------------------------------
>
>                 Key: YARN-8113
>                 URL: https://issues.apache.org/jira/browse/YARN-8113
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: documentation
>            Reporter: Weiwei Yang
>            Assignee: Weiwei Yang
>            Priority: Major
>         Attachments: AllocationTag_Namespace.png, DS_update.png, YARN-8113.001.patch,
YARN-8113.002.patch, YARN-8113.003.patch
>
>
> Once YARN-8013 is done, we will support all type of application namespace types for inter-app
constraints, accordingly we need to update the doc. Also make sure API doc will be updated.



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