Recently the Data Aggregator activemq process was down and not running. However the system status indicated that the Data Collector status was marked as "failed", which is not correct. The Data Aggregator status was reporting as running (including the Data Source page).
The Data Aggregator activemq process was down but did not auto-restart.
Release : 20.2
Component : IM Reporting / Admin / Configuration
Working as designed as no activemq checking on the DA. The activemq should have automatically restarted if down. Please check the activemq log for the root cause for the crash and also, if required, why it did not automatically restart.