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From "Arun Suresh (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5501) Container Pooling in YARN
Date Tue, 13 Dec 2016 20:16:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15746147#comment-15746147
] 

Arun Suresh commented on YARN-5501:
-----------------------------------

Created branch YARN-5501 to work on proof of concept.

> 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
>
> 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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