ahmedabu98 commented on issue #23907: URL: https://github.com/apache/beam/issues/23907#issuecomment-1300838082
The error is caused by [this `beam.Flatten()` operation](https://github.com/apache/beam/blob/f57cb9c208d9e1ac2e353c3a2d2be2b5b3ccee4a/sdks/python/apache_beam/io/gcp/bigquery_file_loads.py#L1125-L1127) that merges the results from two transforms. In most cases, one of those transforms, label: `TriggerLoadJobsWithoutTempTables`, will not be used and so will not have any elements to output. Hence, this transform is `"consumed but never produced"` by the Flatten operation. This is not an issue for DirectRunner and DataflowRunner, but is caught by Flink and Spark. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
