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https://issues.apache.org/jira/browse/FLINK-8748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16374251#comment-16374251
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yuqi commented on FLINK-8748:
-----------------------------

According to your MR, I do think you should change the title of this jira. What 
you do is to support rescale parallelism of flink job online, so It's a little 
misleading if title is `Cancel slot requests for alternatively completed slots 
in SlotPool`

> Cancel slot requests for alternatively completed slots in SlotPool
> ------------------------------------------------------------------
>
>                 Key: FLINK-8748
>                 URL: https://issues.apache.org/jira/browse/FLINK-8748
>             Project: Flink
>          Issue Type: Improvement
>          Components: Distributed Coordination
>    Affects Versions: 1.5.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
>            Priority: Minor
>              Labels: flip-6
>             Fix For: 1.5.0
>
>
> The {{SlotPool}} can complete slot requests with other allocated slots. In 
> that case it should cancel the original slot request sent to the 
> {{ResourceManager}}.



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