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https://issues.apache.org/jira/browse/FLINK-13334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann resolved FLINK-13334.
-----------------------------------
    Resolution: Done

Done via f75d8e1fbb16ba08ab5a625f50e988c708a8a2bf

> Remove legacy slot implementation
> ---------------------------------
>
>                 Key: FLINK-13334
>                 URL: https://issues.apache.org/jira/browse/FLINK-13334
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Coordination
>    Affects Versions: 1.10.0
>            Reporter: TisonKun
>            Assignee: TisonKun
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.10.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> cc [~till.rohrmann] [~srichter]
> From my investigation currently Flink use {{SlotSharingManager}} and 
> {{SlotSharingGroupId}} for achieving slot sharing. And thus 
> {{SlotSharingGroupAssignment}} {{SlotSharingGroup}} and {{SharedSlot}} are 
> all legacy concept.
> Notice that the ongoing scheduler re-design touches frequently tests based on 
> legacy slot/instance logic or even uses it for testing. I'd like to nudge 
> this process for totally remove legacy code from our code base.
> Also I attach a patch on FLINK-12179 that remove {{Instance}}. With current 
> contribution workflow your shepherds are significant :- ) 



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