In the Desktop Client -> Admin Perspective -> Topology, the GUID of the Primary and/or Standby server may be displayed instead of hostname.
Jobs do continue to run.
The DE server reads the Primary and Standby server names from the database. If, for some reason, it is unable to read it or access it, the Topology will display the GUID of the server instead.
Note: It is also possible that the table that keeps this information has been updated/truncated. This may be due to truncating of the Status Tables (ESP_SM_) because of large number of status messages.
If the Topology is not displaying the server names, please wait for 10-20 minutes and then refresh the Topology.
If the records are removed from Status table, the DE server will repopulate them in about 10-20 minutes and the Desktop Client will show proper names.
If the Desktop Client does not show the proper names after a 30-60 minutes, then it is recommend to restart the DE (shutdown both servers in High availability configuration).
Note: Even though the server names are not correctly displayed, the events will continue to trigger. The Workload is not affected.