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https://issues.apache.org/jira/browse/YARN-6345?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15927433#comment-15927433
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Miklos Szegedi commented on YARN-6345:
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bq. Hi Miklos Szegedi. We could, but we were thinking of container tags more
like attributes (i.e., just a string with no value), rather than key-value
pairs. I think in your case you will require key-value pairs, right?
[~kkaranasos], yes, I was referring to key value pairs. Is there any value in
using a key-value pair in your case with no value, so that we can reuse the
feature in YARN-5986? This would simplify the container launch context protocol
in the long run I think.
> Add container tags to resource requests
> ---------------------------------------
>
> Key: YARN-6345
> URL: https://issues.apache.org/jira/browse/YARN-6345
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: yarn
> Reporter: Konstantinos Karanasos
> Assignee: Panagiotis Garefalakis
>
> This JIRA introduces the notion of container tags.
> When an application submits container requests, it is allowed to attach to
> them a set of string tags. The corresponding resource requests will also
> carry these tags.
> For example, a container that will be used for running an HBase Master can be
> marked with the tag "hb-m". Another one belonging to a ZooKeeper application,
> can be marked as "zk".
> Through container tags, we will be able to express constraints that refer to
> containers with the given tags.
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