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https://issues.apache.org/jira/browse/BEAM-4786?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17122294#comment-17122294
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Kenneth Knowles commented on BEAM-4786:
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This issue is assigned but has not received an update in 30 days so it has been
labeled "stale-assigned". If you are still working on the issue, please give an
update and remove the label. If you are no longer working on the issue, please
unassign so someone else may work on it. In 7 days the issue will be
automatically unassigned.
> Distinct has bad parallelism characteristics
> --------------------------------------------
>
> Key: BEAM-4786
> URL: https://issues.apache.org/jira/browse/BEAM-4786
> Project: Beam
> Issue Type: Bug
> Components: sdk-java-core
> Reporter: Pablo Estrada
> Assignee: Pablo Estrada
> Priority: P2
> Labels: ccoss2019, stale-assigned
>
> Distinct groups first and then drops extra elements. Should drop elements in
> the mappers, and later in reducers.
> https://github.com/apache/beam/blob/master/sdks/java/core/src/main/java/org/apache/beam/sdk/transforms/Distinct.java#L100
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