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Posted to yarn-issues@hadoop.apache.org by "Subru Krishnan (JIRA)" <ji...@apache.org> on 2018/09/06 00:33:00 UTC

[jira] [Commented] (YARN-5597) YARN Federation improvements

    [ https://issues.apache.org/jira/browse/YARN-5597?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16605094#comment-16605094 ] 

Subru Krishnan commented on YARN-5597:
--------------------------------------

[~bibinchundatt], we use a RDBMS (SQL) for the Federation store and ZK for RM store as 1) there's no leader election in Federation and 2) We only store metadata for which a DB performs great and not what ZK is intended for (IMHO Zk has abused/misused a lot).

That said, [~elgoiri] has a deployment with ZK for both Federation and RM stores, so he should be able to guide you.

> YARN Federation improvements
> ----------------------------
>
>                 Key: YARN-5597
>                 URL: https://issues.apache.org/jira/browse/YARN-5597
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Subru Krishnan
>            Assignee: Subru Krishnan
>            Priority: Major
>
> This umbrella JIRA tracks set of improvements over the YARN Federation MVP (YARN-2915)



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