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https://issues.apache.org/jira/browse/YARN-6347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927584#comment-15927584
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Konstantinos Karanasos commented on YARN-6347:
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Oh I see. I meant storing them in memory.
I agree that if we were to store them in the state store, it could cause
scalability issues. But I think we can do that only periodically, or simply
have the active containers report their tags in case of RM failover.
> Store container tags in ResourceManager
> ---------------------------------------
>
> Key: YARN-6347
> URL: https://issues.apache.org/jira/browse/YARN-6347
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: resourcemanager
> Reporter: Konstantinos Karanasos
> Assignee: Panagiotis Garefalakis
>
> In YARN-6345 we introduce the notion of container tags.
> In this JIRA, we will create a service in the RM, similar to the Node Labels
> Manager, that will store the tags of each active container.
> Note that a node inherits the tags of all containers that are running on that
> node at each moment. Therefore, the container tags can be seen as dynamic
> node labels. The suggested service will allow us to efficiently retrieve the
> container tags of each node.
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