On opening the alarms menu in Operator console no alarms are displayed
On selecting option "Show Historical"
Release : 20.3.3
Component : UIM OPERATOR CONSOLE - ALARM VIEWER
Observed errors in operator console alarmviewer-api and nas logs for the nas_transaction_summary table
Verifying in the database showed the nas_transaction_summary table was missing
Redeploying the nas probe recreated the missing nas_transaction_table
The Operator console alarms page correctly populated data after recreation of the missing nas_transaction_summary table