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From "Eric Yang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8298) Yarn Service Upgrade: Support fast component upgrades which accepts component spec
Date Wed, 01 Aug 2018 23:28:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16566147#comment-16566147
] 

Eric Yang commented on YARN-8298:
---------------------------------

What the command might look like:

{code}
yarn app -upgrade abc /tmp/new.json
{code}

or

{code}
yarn app -upgrade abc -initiate /tmp/new.json
yarn app -upgrade abc
{code}

> Yarn Service Upgrade: Support fast component upgrades which accepts component spec
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-8298
>                 URL: https://issues.apache.org/jira/browse/YARN-8298
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Chandni Singh
>            Assignee: Chandni Singh
>            Priority: Major
>
> Currently service upgrade involves 2 steps
>  * initiate upgrade by providing new spec
>  * trigger upgrade of each instance/component
>  
> We need to add the ability to upgrade a component in shot which accepts the spec of the
component. However there are couple of limitations when upgrading in this way:
>  # Aborting the upgrade will not be supported
>  # Upgrade finalization will be done automatically.



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