Hi @Ibrahima13. From my limited experience so far with using Hive within DSS, the error from your log is what you get when the Hive server is down or can't be reached through the network.
If this is the first time you are using Hive within DSS, the administrator should check that all configurations (hive address, port, permissions, etc) are ok. If you have been using hive regularly, and this is the first time you get this error, I would recommend to contact your system admin so they can check what is happening.
If that doesn't work, and you don't get another answer in this thread, I think you should try to create a support ticket at https://support.dataiku.com/support/home
Thank you for your reply. I think you are right. So I will first check the configuration of Hiveserver2: adress, port etc..
If I still get the issue then I will open ticket to DSS support.
Thank you very much.
Have a nice day.