title: AWS Glue unable to access input data set
body: <p>I have a dataset registered in Glue / Athena, call it <code>my_db.table</code>. I'm able to query it via Athena and everything generally seems to be in order.</p>
  
  <p>I'm trying to use this table in a Glue job, but am getting the following fairly opaque error message:</p>
  
  <pre><code>py4j.protocol.Py4JJavaError: An error occurred while calling o54.getCatalogSource.
  : java.lang.Error: No classification or connection in my_db.table
  </code></pre>
  
  <p>This would appear to indicate that Glue can't see the catalog entry for my table, or can't use the information in that entry, but I don't have any further visibility than that.</p>
  
  <p>Has anyone experience with this error and what might be causing it?</p>