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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5261) Lease/Reclaim Extension to Yarn
Date Mon, 27 Jun 2016 08:59:52 GMT

    [ https://issues.apache.org/jira/browse/YARN-5261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15350660#comment-15350660
] 

Sunil G commented on YARN-5261:
-------------------------------

Hi
It will be better if you could share a more details about this work such as a document since
a detailed patch is submitted.
>From the patch, it looks like you are planning to introduce a LeaseManager to control
various lease requests placed from cli and try to push those resource for other uses. I am
not very sure, but a detailed document will really help to know about the use cases which
you are trying to address. As Jason told, it looks similar to the overcommit effort happening
in YARN-1011/YARN-5215.

> Lease/Reclaim Extension to Yarn
> -------------------------------
>
>                 Key: YARN-5261
>                 URL: https://issues.apache.org/jira/browse/YARN-5261
>             Project: Hadoop YARN
>          Issue Type: New Feature
>          Components: scheduler
>            Reporter: Yu
>         Attachments: YARN-5261-1.patch
>
>
> In some clusters outside of Yarn, the machines resources are not fully utilized, e.g.,
resource usage is quite low at night.  
> To better utilize the resources while keep the existing SLA of the cluster, Lease/Reclaim
Extension to Yarn is introduced.



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