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https://issues.apache.org/jira/browse/YARN-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13732610#comment-13732610
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Jason Lowe commented on YARN-1016:
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YARN already provides a cache of localized resources, both a per-user cache and
a public one, that uses timestamps of the requested resource to determine
whether it has changed and attempts to prune the cache to a targeted total
cache size taking into account resources that are still in use. See
ResourceLocalizationService and LocalResourcesTracker.
Is there something beyond this that you are requesting?
> Define a HDFS based repository that allows YARN services to share resources
> ---------------------------------------------------------------------------
>
> Key: YARN-1016
> URL: https://issues.apache.org/jira/browse/YARN-1016
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api
> Affects Versions: 3.0.0
> Reporter: Kam Kasravi
>
> YARN services both short and long lived can benefit from a resource repo
> rather than packaging resources within the YARN client to be extracted and
> used by the Application Master and (later) the containers. Standardizing a
> resource repo will provide performance benefits as well. The repo should be
> similar to maven or ivy repo's so discovery and versioning are built-in.
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