[ https://issues.apache.org/jira/browse/YARN-5501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hitesh Sharma updated YARN-5501:
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Attachment: Container Pooling - one pager.pdf
> Container Pooling in YARN
> -------------------------
>
> Key: YARN-5501
> URL: https://issues.apache.org/jira/browse/YARN-5501
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Arun Suresh
> Attachments: Container Pooling - one pager.pdf
>
>
> This JIRA proposes a method for reducing the container launch latency in YARN. It introduces
a notion of pooling *Unattached Pre-Initialized Containers*.
> Proposal in brief:
> * Have a *Pre-Initialized Container Factory* service within the NM to create these unattached
containers.
> * The NM would then advertise these containers as special resource types (this should
be possible via YARN-3926).
> * When a start container request is received by the node manager for launching a container
requesting this specific type of resource, it will take one of these unattached pre-initialized
containers from the pool, and use it to service the container request.
> * Once the request is complete, the pre-initialized container would be released and ready
to serve another request.
> This capability would help reduce container launch latencies and thereby allow for development
of more interactive applications on YARN.
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