A Data Aggregator and a Data Collector were both installed on the same system in a pre-production environment. The Data Collector was uninstalled to prepare to install it on a separate server from the Data Aggregator. After taking this step the Data Aggregator no longer connects or synchronizes with the CA Performance Manger server.
Both the Data Aggregator and Data Collector installations rely on ActiveMQ code and services to communicate with other systems in the CA Performance Manager product environment.
Both have files and paths in common but aren't designed to be installed on the same server.
When one of the products is uninstalled, it removes the ActiveMQ software installed along with the CA software.
This causes ActiveMQ files necessary to successful function to be removed preventing the remaining tool from correct operation.
The solution to this problem is as follows:
Tips for Success: