[PR] Fix JsonToRow swallowing downstream errors when runners fuse transforms. [beam]

Wed, 24 Jun 2026 19:37:32 -0700 


utkarshparekh opened a new pull request, #39098:
URL: https://github.com/apache/beam/pull/39098

   Separate JSON parsing from MultiOutputReceiver output in ParseWithError so 
exceptions from fused downstream consumers are not misreported as parse 
failures. Fixes #20935.
   
   **Please** add a meaningful description for your change here
   ------------------------
   Fixes a bug in `JsonToRow.withExceptionReporting()` where exceptions from 
fused downstream transforms could be caught and misreported as JSON parse 
failures in the dead-letter output.
   
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