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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6858) Attribute Manager to store and provide the attributes in RM
Date Thu, 27 Jul 2017 03:30:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-6858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16102644#comment-16102644
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Sunil G commented on YARN-6858:
-------------------------------

Thanks [~asuresh] for your comments.
Couple of points here:
# CommonNodeLabelsManager has already figured out issues such as storage of labels (hdfs/files
etc) and recovery from that (we use mirror files for this). Hence we could reuse the same
which is already a stable part.
# There is a mapping which is needed per host to attributes and its validation etc. NodeLabelManager
has some valid utils written to cover the same.
# Idea is to extend CommonNodeLabelManager to use these common functionalities as possible
and the extend to have independent functions.
# CLI/REST etc could easily work with a manager and operate easily on same. An exposed apis
to internal scheduler could help to access these attributed in scheduler, node etc.

I think i understood your suggestions to keep these in SchdeulerNode, but  I guess we might
have to reinvent some of these points again by moving there. Thoughts?
cc/[~naganarasimha_gr@apache.org], please correct me if i am wrong or missed some points.

> Attribute Manager to store and provide the attributes in RM
> -----------------------------------------------------------
>
>                 Key: YARN-6858
>                 URL: https://issues.apache.org/jira/browse/YARN-6858
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: api, capacityscheduler, client
>            Reporter: Naganarasimha G R
>            Assignee: Naganarasimha G R
>
> Similar to CommonNodeLabelsManager we need to have a centralized manager for Node Attributes
too.



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