AMBARI-4949. Storm: When Nimbus is down, the graphs are shown with spinners that spin forever (page refresh shows "Loading..." bar). (Denys Buzhor via onechiporenko)
AMBARI-4947. Change Hive alerts to move away from Hive metadata queries to port checks.(vbrodetskyi)
AMBARI-4950 Excessive requests on routing between tabs. (atkach)
AMBARI-4951. Mirroring: ability to add Target Clusters from Create Dataset popup. (akovalenko)