Details
Description
They are having periodic time where HiveServer2 and impala are unaccessible and then it start working after a refresh.
Found out that they do have an idle connection timeout of 60 minutes in their Firewall between Hue and HS2. Their network team said they saw the connection getting killed in the Firewall around the last reproduction of the issue.
This fix enables Hue do keep alive on the thrift sessions to HS2 and Impala.