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https://issues.apache.org/jira/browse/YARN-5602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15883817#comment-15883817
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Subru Krishnan commented on YARN-5602:
--------------------------------------

[~giovanni.fumarola], thanks for the patch. I looked at it and have a few minor 
comments:
  * I think you missed adding a comment on why _Capability_ and _HeartBeat_ are 
not used for comparison as suggested by [~jianhe].
  * I don't think we should not have HikariCP dependency in the utils. 
Shouldn't that be part of the specific implementation?
  * I feel that the {{FederationStateStoreErrorCode}} should correspond to the 
API, as now multiple invocation failures that return the same error code?
  * Nit: There are few public methods which don't have Javadocs.

> Utils for Federation State and Policy Store
> -------------------------------------------
>
>                 Key: YARN-5602
>                 URL: https://issues.apache.org/jira/browse/YARN-5602
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Giovanni Matteo Fumarola
>            Assignee: Giovanni Matteo Fumarola
>              Labels: oct16-medium
>         Attachments: YARN-5602-YARN-2915.v1.patch, 
> YARN-5602-YARN-2915.v2.patch, YARN-5602-YARN-2915.v3.patch, 
> YARN-5602-YARN-2915.v4.patch
>
>
> This JIRA tracks the creation of utils for Federation State and Policy Store 
> such as Error Codes, Exceptions...



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