Hello @caisch  Did you add the Hue LB in the Knox Proxy Hosts as mentioned in the documentation? https://docs.cloudera.com/cdp-private-cloud-upgrade/latest/upgrade-hdp/topics/hue-upg-integrate-hue-knox.html#:~:text=If%20you%20have%20deployed%20a%20Hue%20Load%20Balancer%2C%20then%20you%20must%20specify%20the%20Load%20Balancer%20hostname%20in%20the%20Knox%20Proxy%20Hosts%20field%20by%20clicking%20%2B By default, Hue will try to close the Impala query when the user leaves the editor page, this will free all the query resources in Impala, but also make its results inaccessible, however, if you want to ensure that Hue close the Impala queries by adding the following settings to the Hue Service Advanced Configuration Snippet (Safety Valve) for hue_safety_valve.ini configuration property: [impala] close_queries=true query_timeout_s= session_timeout_s= By default query_timeout_s=300 and session_timeout_s=900, you can setup those based on your requirements.   ... View more