Data Aggregator Service down

Document ID : KB000111076
Last Modified Date : 14/08/2018
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Need help to get the da running and see why it stopped
CAPM 3.x
Karaf.log from 8.3 shows the DA lost connection to the DR. And that is why the DA shutdown.

excerpt from log:
ERROR | anager-thread-13 | 2018-08-03 23:31:49,439 | shutdown | tTolerantDBConnectionManagerImpl 179 | | | The primary data repository host '<DR_HOST_NAME>' is no longer available, and there are no available secondary hosts. Current Host Status: {<DR_HOST_NAME>=DOWN} 
Restarted the Data Aggregator (DA)

service activemq stop
service dadaemon start

dr has been up for some time.
possible network issue.