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From "LiangYe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7854) Attach prefixes to different type of node attributes
Date Fri, 02 Feb 2018 07:25:02 GMT

    [ https://issues.apache.org/jira/browse/YARN-7854?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16349903#comment-16349903

LiangYe commented on YARN-7854:

Thanks [~sunilg] [~cheersyang] for comments.
 # Agree, use DNS format is more appropriate. 
 #  Advocate to Specify the fully qualified name.
 #  If prefix is not given,  default namespace can be configured by configuration? Because
different organizations have different requirements.
 # If cross validation is between different sources and they are in different namespaces,
it's not make sense. If from the same source as [~cheersyang] mentioned,  nm collectors 
or admin or system should handle this situation and make them the same type or definiteness.

> Attach prefixes to different type of node attributes
> ----------------------------------------------------
>                 Key: YARN-7854
>                 URL: https://issues.apache.org/jira/browse/YARN-7854
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: RM
>            Reporter: Weiwei Yang
>            Assignee: LiangYe
>            Priority: Major
> There are multiple types of node attributes depending on which source it comes from,
>  # Centralized: attributes set by users (admin or normal users)
>  # Distributed: attributes collected by a certain attribute provider on each NM
>  # System: some built-in attributes in yarn, set by yarn internal components, e.g scheduler
> To better manage these attributes, we introduce the prefix (namespace) concept to the
an attribute. This Jira is opened to figure out how to attach prefixes (automatically/implicitly
or explicitly) to different type of attributes.

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