Farm deployments in releases prior to 12.4.0 processed data in asynchronous manner. Release 12.4.0 features processing data samples synchronously between all nodes within a given cluster.
The procedure assumes you upgraded your CSS and RUM Console first. See Upgrading DC RUM
You will need to upgrade all of the report servers participating in the farm. For more information, see Upgrading CAS and Upgrading ADS.
If you are using a load balancing cluster to process Citrix (using TCAM) or Dynatrace Performance Network monitoring data, and you wish to maintain data consistency during an upgrade, you must synchronize data processing before upgrading to 12.4.0 For more information, see Upgrading Farm Deployments utilizing TCAM or DPN.
Upgrade the primary node in the primary cluster.
Upgrade each secondary node in the primary cluster.
Upgrade the primary node in the secondary cluster.
Upgrade each secondary node in the secondary cluster.
Repeat step 3 and 4 for each secondary cluster (if present).
(Optional) If present, upgrade all the failover nodes in the primary cluster and secondary clusters.
Upgrade all of the data sources participating in the farm.
If needed, add all of the components to the device list in the RUM Console.