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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/03 22:08:09 UTC

[GitHub] [beam] kennknowles opened a new issue, #19063: Distinct has bad parallelism characteristics

kennknowles opened a new issue, #19063:
URL: https://github.com/apache/beam/issues/19063

   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
   
   Imported from Jira [BEAM-4786](https://issues.apache.org/jira/browse/BEAM-4786). Original Jira may contain additional context.
   Reported by: pabloem.


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