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Posted to issues@beam.apache.org by "Beam JIRA Bot (Jira)" <ji...@apache.org> on 2020/08/10 17:08:32 UTC
[jira] [Updated] (BEAM-4786) Distinct has bad parallelism
characteristics
[ https://issues.apache.org/jira/browse/BEAM-4786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Beam JIRA Bot updated BEAM-4786:
--------------------------------
Labels: ccoss2019 stale-P2 (was: ccoss2019)
> 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
> Priority: P2
> Labels: ccoss2019, stale-P2
>
> 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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