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https://issues.apache.org/jira/browse/FLINK-4525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15445443#comment-15445443
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Fabian Hueske commented on FLINK-4525:
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+1 to drop it.
This feature is well hidden (on purpose) and I don't think it is used by
anybody.
> Drop the "eager split pre-assignment" code paths
> ------------------------------------------------
>
> Key: FLINK-4525
> URL: https://issues.apache.org/jira/browse/FLINK-4525
> Project: Flink
> Issue Type: Improvement
> Components: JobManager
> Affects Versions: 1.1.2
> Environment:
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Fix For: 1.2.0
>
>
> There is currently an interface for input splits {{StrictlyLocalAssignment}}
> that is half-heartedly supported in the JobManager (it is, for example, not
> fault tolerant).
> I suggest to drop these special cases for the following reasons:
> - they do not fit the assumptions of all the rest of the system well
> (localize where possible, but never constrain)
> - they make the logic of implemented as part of dynamic resource
> acquisition hard
> - they are not fully implemented even today
> - I am not aware of anyone using this feature
> - It is complicated to maintain
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