[jira] [Comment Edited] (YARN-5501) Container Pooling in YARN

["Hitesh Sharma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5501?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15871293#comment-15871293 ] 

Hitesh Sharma edited comment on YARN-5501 at 2/17/17 6:50 AM:
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Hi [~jlowe], thanks for the feedback. I have captured some of the discussion in the attached document.

[~asuresh]], [~vvasudev], please have look and share your thoughts. Look forward to the discussion.


was (Author: hrsharma):
Hi [~jlowe], thanks for the feedback. I have captured some of the discussion in the attached document.

[~arun suresh], [~vvasudev], please have look and share your thoughts. Look forward to the discussion.

> 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
>            Assignee: Hitesh Sharma
>         Attachments: Container Pooling in YARN.pdf, 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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