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From "Inigo Goiri (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10687) Federation Membership State Store internal APIs
Date Tue, 16 Aug 2016 22:38:20 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10687?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15423523#comment-15423523
] 

Inigo Goiri commented on HDFS-10687:
------------------------------------

After discussion with [~subru], we thought that it was best to match the code of YARN federation
which uses protobuf for serialization. This was also the first patch in YARN-2915 so I will
try to push first for this one.

> Federation Membership State Store internal APIs
> -----------------------------------------------
>
>                 Key: HDFS-10687
>                 URL: https://issues.apache.org/jira/browse/HDFS-10687
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: fs
>            Reporter: Inigo Goiri
>
> The Federation Membership State encapsulates the information about the Namenodes of each
sub-cluster that are participating in Federation. The information includes addresses for RPC,
Web. This information is stored in the State Store and later used by the Router to find data
in the federation.



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