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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1029) Allow embedding leader election into the RM
Date Wed, 11 Dec 2013 15:53:10 GMT

    [ https://issues.apache.org/jira/browse/YARN-1029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13845491#comment-13845491
] 

Tom White commented on YARN-1029:
---------------------------------

Implementing ActiveStandbyElector sounds like a good approach, and the patch is a good start.
From a work sequencing point of view wouldn't it be preferable to implement the standalone
ZKFC first, since it will share a lot of the code with HDFS (i.e. implement the equivalent
of DFSZKFailoverController)?

> Allow embedding leader election into the RM
> -------------------------------------------
>
>                 Key: YARN-1029
>                 URL: https://issues.apache.org/jira/browse/YARN-1029
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Bikas Saha
>            Assignee: Karthik Kambatla
>         Attachments: yarn-1029-approach.patch
>
>
> It should be possible to embed common ActiveStandyElector into the RM such that ZooKeeper
based leader election and notification is in-built. In conjunction with a ZK state store,
this configuration will be a simple deployment option.



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