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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-1098) Separate out stateless services from stateful services in the RM
Date Wed, 28 Aug 2013 23:55:51 GMT

     [ https://issues.apache.org/jira/browse/YARN-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Karthik Kambatla updated YARN-1098:

    Attachment: yarn-1098-approach.patch

Uploading fixed version of the patch - was able to run sample jobs and verify the behavior
doesn't change on a pseudo-dist cluster. Yet to run all the tests. 
> Separate out stateless services from stateful services in the RM
> ----------------------------------------------------------------
>                 Key: YARN-1098
>                 URL: https://issues.apache.org/jira/browse/YARN-1098
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.1.0-beta
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>              Labels: ha
>         Attachments: yarn-1098-approach.patch, yarn-1098-approach.patch
> From discussion on YARN-1027, it makes sense to separate out services that are stateful
and stateless. The stateless services can be HA-agnostic and be run perennially irrespective
of whether the RM is in Active/Standby state, while the stateful services need to be aware
of HA and be started on transitionToActive() and completely shutdown on transitionToStandby().

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