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https://issues.apache.org/jira/browse/FLINK-10569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16655620#comment-16655620
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TisonKun edited comment on FLINK-10569 at 10/18/18 5:22 PM:
------------------------------------------------------------

I find this topic is more complex than I ever thought. We actually have two 
version of slot implementation and current {{ExecutionGraph}} tests heavily 
depend on legacy slot implementation. Maybe we should separate this thread into 
stepwise issues decouples existing valid tests with legacy slot 
implementation(as well as Scheduler and Instance).

cc [~till.rohrmann].


was (Author: tison):
I find this topic is more complex than I ever thought. We actually have two 
version of slot implementation and current {{ExecutionGraph}} tests heavily 
depend on legacy slot implementation. Maybe we should separated this thread 
into stepwise issues decouples existing valid tests with legacy slot 
implementation(as well as Scheduler and Instance).

cc [~till.rohrmann].

> Clean up uses of Scheduler and Instance in valid tests
> ------------------------------------------------------
>
>                 Key: FLINK-10569
>                 URL: https://issues.apache.org/jira/browse/FLINK-10569
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Tests
>    Affects Versions: 1.7.0
>            Reporter: TisonKun
>            Assignee: TisonKun
>            Priority: Major
>             Fix For: 1.7.0
>
>
> Legacy class {{Scheduler}} and {{Instance}} are still used in some valid 
> tests like {{ExecutionGraphRestartTest}}. We should replace them with FLIP-6 
> schedule mode. The best way I can find is use {{SimpleSlotProvider}}.
> Note that we need not to remove all use points among all files since most of 
> them stay in legacy codebase like {{JobManager.scala}} and would be removed 
> later.



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