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https://issues.apache.org/jira/browse/FLINK-14915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16979855#comment-16979855
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Zhu Zhu commented on FLINK-14915:
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{{SchedulerBase}} still needs the {{JobGraph}} to build an {{ExecutionGraph}}, 
so we cannot drop it for now.
What I mean is {{SchedulingStrategy}} which could be customizable by users in 
the future, so we should hide unnecessary implementation details if possible.

I can open a PR to remove the {{JobGraph}} parameter from 
{{SchedulingStrategyFactory#createInstance}}.
Would you assign it to me?

> SchedulingStrategyFactory#createInstance might not need to know JobGraph
> ------------------------------------------------------------------------
>
>                 Key: FLINK-14915
>                 URL: https://issues.apache.org/jira/browse/FLINK-14915
>             Project: Flink
>          Issue Type: Improvement
>          Components: Runtime / Coordination
>            Reporter: Zili Chen
>            Priority: Major
>
> [~zhuzh] [~GJL] I just notice that 
> {{SchedulingStrategyFactory#createInstance}} take a parameter {{JobGraph}} 
> but neither the parameter is in use nor this class/method should know 
> {{JobGraph}}. Could you explain why we need it or we can safely remove the 
> parameter so that we get rid of confusing parameter?



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