title: BigQuery ingestion throws "tableUnavailable" message: What causes this error specifically?
body: <p>Today, after many successful loads into a BigQuery table, received this error message: </p>
  
  <pre><code>tableUnavailable
  Something went wrong with the table you queried. Contact the table owner for assistance
  </code></pre>
  
  <p>I do not see this error in the error table: <a href="https://cloud.google.com/bigquery/troubleshooting-errors#errortable" rel="nofollow">https://cloud.google.com/bigquery/troubleshooting-errors#errortable</a></p>
  
  <p>What conditions could cause this error? Other load jobs, using the same code and in same dataset, do not display this error</p>