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https://issues.apache.org/jira/browse/YARN-8013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16424848#comment-16424848
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Weiwei Yang commented on YARN-8013:
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Hi [~kkaranasos]
The conflict was because YARN-8002 was not committed to branch-3.1.
I have just cherry-picked YARN-8002 to branch-3.1, now there should have no
conflicts anymore. Could you please try again?
Thanks.
> Support application tags when defining application namespaces for placement
> constraints
> ---------------------------------------------------------------------------------------
>
> Key: YARN-8013
> URL: https://issues.apache.org/jira/browse/YARN-8013
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Weiwei Yang
> Assignee: Weiwei Yang
> Priority: Major
> Attachments: YARN-8013.001.patch, YARN-8013.002.patch,
> YARN-8013.003.patch, YARN-8013.004.patch, YARN-8013.005.patch,
> YARN-8013.006.patch, YARN-8013.007.patch
>
>
> YARN-1461 adds the concept of *Application Tags* to Yarn applications. In
> particular, a user is able to annotate application with multiple tags to
> classify apps. We can leverage this to define application namespaces based on
> application tags for placement constraints.
> Below is a typical use case.
> There are a lot of TF jobs running on Yarn, and some of them are consuming
> resources heavily. So we want to limit number of PS on each node for such BIG
> players but ignore those SMALL ones. To achieve this, we can do following
> steps:
> # Add application tag "big-tf" to these big TF jobs
> # For each PS request, we add "ps" source tag and map it to constraint
> "{color:#d04437}notin, node, tensorflow/ps{color}" or
> "{color:#d04437}cardinality, node, tensorflow/ps{color}{color:#d04437}, 0,
> 2{color}" for finer grained controls.
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