Analytics is working for the first time. It worked then for 1 month. And last week it stopped wotking.
Now on the Analytics Dashboard, i see only "No Data". available for all dashboards
Release : 4.2
Component : API PORTAL
It looks some jarvis service was crashed or not reachable from the other docker container.
Restarting the portal services using
docker stack rm portal
and restarting portal running portal.sh resolved the problem .