[jira] [Updated] (YARN-3664) Federation PolicyStore internal APIs

["Subru Krishnan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/YARN-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Subru Krishnan updated YARN-3664:
---------------------------------
    Attachment: YARN-3664-YARN-2915-v2.patch

[~vvasudev], thanks for your feedback.

Attaching patch (v2) that incorporates your comments. Similar to YARN-5307, the names is definitely along the lines but are not exactly what you suggested as I have to tried to align with the final version of YARN-3662 which includes [~vinodkv]/[~leftnoteasy]'s feedback too.

bq. Can we use something other than ByteBuffer for getParams - this'll become a problem if you ever expose this information via REST API or wish to update the object via a REST API(marshalling/unmarshalling ByteBuffer can be painful)

I agree with your observation but we couldn't think of a better alternative based on the current understanding of the policy space (refer: YARN-5324/YARN-5325). Also since we have established this is an internal API, I feel we can revisit once the dust settles on the policies post testing. So I have left it as ByteBuffer for now.


> Federation PolicyStore internal APIs
> ------------------------------------
>
>                 Key: YARN-3664
>                 URL: https://issues.apache.org/jira/browse/YARN-3664
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Subru Krishnan
>         Attachments: YARN-3664-YARN-2915-v0.patch, YARN-3664-YARN-2915-v1.patch, YARN-3664-YARN-2915-v2.patch
>
>
> The federation Policy Store contains information about the capacity allocations made by users, their mapping to sub-clusters and the policies that each of the components (Router, AMRMPRoxy, RMs) should enforce



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