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Posted to yarn-issues@hadoop.apache.org by "Peter Bacsko (Jira)" <ji...@apache.org> on 2021/05/11 15:15:00 UTC
[jira] [Commented] (YARN-10505) Extend the maximum-capacity
property to support Fair Scheduler migration
[ https://issues.apache.org/jira/browse/YARN-10505?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17342641#comment-17342641 ]
Peter Bacsko commented on YARN-10505:
-------------------------------------
I would change the naming a bit.
"Relative Percentage" -> "Parent Percentage"
"Absolute Percentage" -> "Cluster Percentage"
I think it's much clearer. Absolute/relative in this context it's hard to grasp or even sounds like an oxymoron.
> Extend the maximum-capacity property to support Fair Scheduler migration
> ------------------------------------------------------------------------
>
> Key: YARN-10505
> URL: https://issues.apache.org/jira/browse/YARN-10505
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Benjamin Teke
> Priority: Major
>
> The property root.users.maximum-capacity could mean the following things:
> * Relative Percentage: maximum capacity relative to its parent. If it’s set to 50, then it means that the capacity is capped with respect to the parent.
> * Absolute Percentage: maximum capacity expressed as a percentage of the overall cluster capacity.
>
> Note that Fair Scheduler supports the following settings:
> * Single percentage (absolute)
> * Two percentages (absolute)
> * Absolute resources
>
> It is recommended that all three formats are supported for maximum-capacity after introducing weight mode.
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