title: Azure Data Factory error DFExecutorUserError error code 1204
body: <p>So I am getting an error in Azure Data Factory that I haven't been able to find any information about.  I am running a data flow and eventually (after an hour or so) get this error</p>
  <blockquote>
  <p>{&quot;StatusCode&quot;:&quot;DFExecutorUserError&quot;,&quot;Message&quot;:&quot;Job failed due to
  reason: The service has encountered an error processing your request.
  Please try again. Error code 1204.&quot;,&quot;Details&quot;:&quot;The service has
  encountered an error processing your request. Please try again. Error
  code 1204.&quot;}</p>
  </blockquote>
  <p>Troubleshooting I have already done :</p>
  <ol>
  <li>I have successfully ran the data flow using the sample option.  Did this with 1 million rows.</li>
  <li>I am processing 3 years of data and I have successfully processed all the data by filter the data by year and running the data flow once for each year.</li>
  </ol>
  <p>So I think I have shown the data isn't the problem, because I have processed all of it by breaking it down into 3 runs.</p>
  <p>I haven't found a pattern in the time the pipeline runs for before the error occurs that would indicate I am hitting any timeout value.</p>
  <p>The source and sink for this data flow are both an Azure SQL Server database.</p>
  <p>Does anyone have any thoughts?  Any suggestions for getting a more verbose error out of data factory (I already have the pipeline set with verbose logging).</p>