Sihua Zhou commented on FLINK-8044:

Sorry [~till.rohrmann], finally I can't come up with a perfect algorithm .... 
and finally we use a naively mechanism which only schedule according to the 
state size for local recovery. So I think I can't give your a good document...

> Introduce scheduling mechanism to satisfy both state locality and input
> -----------------------------------------------------------------------
>                 Key: FLINK-8044
>                 URL: https://issues.apache.org/jira/browse/FLINK-8044
>             Project: Flink
>          Issue Type: New Feature
>          Components: Scheduler
>    Affects Versions: 1.4.0
>            Reporter: Sihua Zhou
>            Priority: Major
> For local recovery we need a scheduler to satisfy both state locality and 
> input, but current scheduler allocate resources according to the order of 
> topologically, this can cause bad result if we allocate base on both state 
> and input, so some revision for scheduler is necessary now.

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