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From "Varun Vasudev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5587) Add support for resource profiles
Date Wed, 02 Nov 2016 15:54:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5587?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15629384#comment-15629384
] 

Varun Vasudev commented on YARN-5587:
-------------------------------------

{quote}
I'm not quite sure about how to apply override capacity, will it override all the fields or
only non-zero fields: For example, assume small profile is <4G, 1 vcore, 1 disk>, and
override is <8G, 2 vcore>, what should be the final resource? <8G, 2 vcore, 0 disk>
or <8G, 2 vcore, 1 disk>?
{quote}
The final resource will be <8G, 2 vcore, 1 disk>. The override is meant to let you override
individual resource types. In practice, this will mean that users can override memory and
vcores since those are the only resource types AMs currently expose to the user.

{quote}
>From the ProfileCapability#toResource, it is the latter one. Probably it is better to
add a javadocs to ProfileCapability#getProfileCapabilityOverride. I cannot find clear explanations
from Javadoc of ProfileCapability.
{quote}
Fair point - I'll fix the docs.

bq. My last question is, after this patch goes in, which patches are required for end-to-end
feature completed and testable?

After this patch, only changes to the distributed shell AM and MR AM are required to test
the feature end to end.

If the current approach is ok by you, I'll clean up the patch and upload a new one.


> Add support for resource profiles
> ---------------------------------
>
>                 Key: YARN-5587
>                 URL: https://issues.apache.org/jira/browse/YARN-5587
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>              Labels: oct16-hard
>         Attachments: YARN-5587-YARN-3926.001.patch, YARN-5587-YARN-3926.002.patch, YARN-5587-YARN-3926.003.patch,
YARN-5587-YARN-3926.004.patch, YARN-5587-YARN-3926.005.patch, YARN-5587-YARN-3926.006.patch,
YARN-5587-YARN-3926.007.patch, YARN-5587-YARN-3926.008.patch
>
>
> Add support for resource profiles on the RM side to allow users to use shorthands to
specify resource requirements.



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