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Posted to github@beam.apache.org by GitBox <gi...@apache.org> on 2021/11/13 02:48:00 UTC

[GitHub] [beam] hughack commented on pull request #15378: [RFC] Define and document per-key ordering semantics for runners

hughack commented on pull request #15378:
URL: https://github.com/apache/beam/pull/15378#issuecomment-967766895


   @pabloem - Yeah looks good, the only comment would be around @kennknowles point. I don't think "key-limited parallelism" is mentioned anywhere else in the Beam model. My understanding is it does happen, despite not explicitly being documented anywhere i can see. I'd be interested how Dataflow handles scaling the number of workers and if the guarantees still hold for any key that starts getting handled by a different worker.


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