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Posted to issues@beam.apache.org by "Robert Bradshaw (Jira)" <ji...@apache.org> on 2021/01/29 22:57:00 UTC

[jira] [Created] (BEAM-11719) Enforce deterministic coding for GroupByKey and Stateful DoFns

Robert Bradshaw created BEAM-11719:
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             Summary: Enforce deterministic coding for GroupByKey and Stateful DoFns
                 Key: BEAM-11719
                 URL: https://issues.apache.org/jira/browse/BEAM-11719
             Project: Beam
          Issue Type: Bug
          Components: sdk-py-core
            Reporter: Robert Bradshaw


If a non-deterministic coder, such as pickling, is used for keys this can result in two copies of the same key being grouped separately (based on their encodings). 



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