[jira] [Commented] (YARN-5324) Stateless router policies implementation

["Carlo Curino (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/YARN-5324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15478744#comment-15478744 ] 

Carlo Curino commented on YARN-5324:
------------------------------------

Rebased the patch based on YARN-5323.  

The patch does a minor updated of the APIs in YARN-5323:
 # merges {{FederationPolicyWriter}} and {{FederationPolicyConfigurator}} in a {{FederationPolicyManager}}. This simplifies class structure and allows for class for name instantiations more easily.
 # renames a method in {{setFederationPolicyConfiguration}} to {{setSubClusterPolicyConfiguration}} (missed in previous refactoring)

The patch also provides 4 implementations for the {{RouterFederationPolicy}}, and general DAO and utils classes (which we will also use in YARN-5325 and YARN-5391).

[~subru], [~giovanni.fumarola] and [~wangda] I think this should be ready for review.

> Stateless router policies implementation
> ----------------------------------------
>
>                 Key: YARN-5324
>                 URL: https://issues.apache.org/jira/browse/YARN-5324
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>    Affects Versions: YARN-2915
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-5324-YARN-2915.06.patch, YARN-5324-YARN-2915.07.patch, YARN-5324.01.patch, YARN-5324.02.patch, YARN-5324.03.patch, YARN-5324.04.patch, YARN-5324.05.patch
>
>
> These are policies at the Router that do not require maintaing state across choices (e.g., weighted random).



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