[jira] [Commented] (SLIDER-82) Support ANTI_AFFINITY_REQUIRED option

["Rajesh Kartha (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SLIDER-82?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14616952#comment-14616952 ] 

Rajesh Kartha commented on SLIDER-82:
-------------------------------------

I know folks are busy. Was wondering if anyone got a chance to try my patch for SLIDER-82 and if there are any thoughts/comments.

Thanks in advance.
-Rajesh

> Support ANTI_AFFINITY_REQUIRED option
> -------------------------------------
>
>                 Key: SLIDER-82
>                 URL: https://issues.apache.org/jira/browse/SLIDER-82
>             Project: Slider
>          Issue Type: Task
>          Components: appmaster
>            Reporter: Steve Loughran
>             Fix For: Slider 2.0.0
>
>         Attachments: SLIDER-82.002.patch
>
>
> slider has an anti-affinity flag in roles (visible in resources.json?), which is ignored.
> YARN-1042 promises this for YARN, slider will need
> # flag in resources.json
> # use in container requests
> we may also want two policies: anti-affinity-desired, and -required. Then if required nodes get >1 container for the same component type on the same node, it'd have to request a new one and return the old one (Risk: getting the same one back). 



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