I am reviewing support incidents related to this topic and I have found another incident of a user encountering an error such as this one. The resolution was to open and save the original workbook on Tableau Desktop and republish on Tableau server 10.2.2 or higher. If this does not resolve the issue, please contact Tableau Support as well to gain hands on assistance with the issue.
This issue has morphed slightly. I am able to connect to Hadoop when the connection is embedded within the workbook. Data returns and workbook seems just fine. However, we cannot use a published TDS Hadoop connection.
When we try to connect to the TDS using Desktop or attempt to "Create New Workbook" on the server this error occurs:
[Cloudera][ImpalaODBC] (100) Error from the Impala Thrift API: SASL(-1): generic failure: All-whitespace username.
Unable to connect to the server "rd.impala.mgic.net". Check that the server is running and that you have access privileges to the requested database.
Unable to connect to the server "sb.reports.mgic.net". Check that the server is running and that you have access privileges to the requested database.
Error: Unable to connect to this Tableau Server data source.
We tried recreating the TDS using Tableau 10, but that does not help. Same error message will happen.
While Jeff waits for support....does anyone have any tips of where to look to debug this issue? Which log files? Tableau or windows?