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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2022/06/03 17:18:33 UTC

[GitHub] [beam] kennknowles opened a new issue, #18289: Outputting to an undeclared side output TupleTag should throw

kennknowles opened a new issue, #18289:
URL: https://github.com/apache/beam/issues/18289

   Currently some runners (perhaps all of them?..), when you output to a side output tag that wasn't passed to ParDo.withOutputTags, simply drop the data on the floor (or increase some aggregators).
   
   Silent data dropping is never okay, and it's never okay to output to an undeclared tag. So instead this should throw.
   
   Imported from Jira [BEAM-1979](https://issues.apache.org/jira/browse/BEAM-1979). Original Jira may contain additional context.
   Reported by: jkff.


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