title: Google Dataflow - BigQuery import job BigQuery/WriteToBigQuery/NativeWrite failed
body: <p>Large Dataflow job here, about 700 Gb of data getting formatted with a final write to BigQuery.</p>
  
  <p>We're running into an issue on both 2.15.0 and 2.16.0 (Python SDK) where the step appears to fail at the final step when it attempts to create an import job:</p>
  
  <p><code>Workflow failed. Causes: S04:xxx to BigQuery/WriteToBigQuery/NativeWrite failed., BigQuery import job "dataflow_job_5111748333716803539" failed., BigQuery creation of import job for table "xxx" in dataset "xxx" in project "xxx" failed., BigQuery execution failed., Unknown error.</code></p>
  
  <p>This appears to be the very last step and costs a significant amount of CPU time to get here before finally failing with an Unknown error with no obvious way to fix it. We've tried running with different versions of the SDK as noted above (since it looks like there were some changes in 2.16.0 that were BigQuery related) but we are essentially stuck with a lot of sunk CPU hours without any obvious next steps here.</p>
  
  <p>Any ideas about things we could try to fix the issue would be greatly appreciated!</p>