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Posted to github@beam.apache.org by "ahmedabu98 (via GitHub)" <gi...@apache.org> on 2023/09/21 15:48:22 UTC

[GitHub] [beam] ahmedabu98 commented on issue #28168: [Bug]: BigQuery Storage Write API does not write with no complaint

ahmedabu98 commented on issue #28168:
URL: https://github.com/apache/beam/issues/28168#issuecomment-1729851196

   Hey @onurdialpad, we've confirmed it is a bug in Dataflow's Runner V2 that gets hit by Storage Write API **with autosharding**. 
   
   One workaround is to use `at_least_once=True`, which will use at-least-once semantics (as opposed to exactly-once). More on that here: https://beam.apache.org/documentation/io/built-in/google-bigquery/#at-least-once-semantics
   
   I'm going to open a PR to also allow setting a fixed number of shards as another workaround, which may be available for Beam `2.51.0` and will work for exactly-once semantics.


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