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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3662) Federation Membership State Store internal APIs
Date Thu, 28 Jul 2016 02:43:20 GMT

    [ https://issues.apache.org/jira/browse/YARN-3662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15396814#comment-15396814
] 

Vinod Kumar Vavilapalli commented on YARN-3662:
-----------------------------------------------

Apologies for chiming in very late. I have more suggestions, please cherry-pick things that
you agree with are easy and feel free to defer the harder ones to later JIRAs
 - Drop *Federation* everywhere in the records? Instead, we can simply say SubClusterInfoProto,
SubClusterIdProto etc.
 - None of these classes should be marked {{@Public}}.
 - GetFederationSubClusterRequest -> GetSubClusterInfoRequest, similarly response? Similarly
the GetSubClustersRequest / response objects? Also, should they be returning the info objects?
 - HeartbeatFederationSubClusterRequest -> SubClusterHeartbeatRequest. Similarly the response?
Trying to follow NodeHeartbeat* records.
 - Enums under FederationSubClusterState can afford not having the SC_ prefix - the enum class
is enough to distinguish them.. Again trying to follow other enums in YARN.

> Federation Membership State Store internal APIs
> -----------------------------------------------
>
>                 Key: YARN-3662
>                 URL: https://issues.apache.org/jira/browse/YARN-3662
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: nodemanager, resourcemanager
>            Reporter: Subru Krishnan
>            Assignee: Subru Krishnan
>         Attachments: YARN-3662-YARN-2915-v1.1.patch, YARN-3662-YARN-2915-v1.patch, YARN-3662-YARN-2915-v2.patch,
YARN-3662-YARN-2915-v3.01.patch, YARN-3662-YARN-2915-v3.patch, YARN-3662-YARN-2915-v4.patch,
YARN-3662-YARN-2915-v5.patch
>
>
> The Federation Application State encapsulates the information about the active RM of
each sub-cluster that is participating in Federation. The information includes addresses for
ClientRM, ApplicationMaster and Admin services along with the sub_cluster _capability_ which
is currently defined by *ClusterMetricsInfo*. Please refer to the design doc in parent JIRA
for further details.



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