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https://issues.apache.org/jira/browse/FLINK-1237?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14209655#comment-14209655
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Stephan Ewen commented on FLINK-1237:
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I'll implement that as a special global property that has the partitioner
attached.
> Add custom partitioners for shuffle steps
> -----------------------------------------
>
> Key: FLINK-1237
> URL: https://issues.apache.org/jira/browse/FLINK-1237
> Project: Flink
> Issue Type: Improvement
> Reporter: Till Rohrmann
> Assignee: Stephan Ewen
>
> It would be helpful to be able to specify a custom partitioner for shuffle
> steps. This would users allow to control how their data is distributed across
> the cluster. Especially in situations where the number of data records is
> equal to the number of slots it might be a possibility to avoid skewed data
> distributions due to the default hashing function.
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