First of all, stop the countly server by executing "sudo countly stop". This command should list the node servers which are stopped.
Now use the package to update ApiOmat analytics. You can contact us for the latest version.
dpkg -i ApiomatAnalytics-1.X.X.deb
yum --nogpgcheck localinstall -y apiomat-Analytics-1.X.X-0.x86_64.rpm
There will be a backup of the old config files (frontend/express/config.js and api/config.js) in the /tmp/aomanalytics_configs folder. These backups will be automatically restored after the update.
If you are updating from 1.0 to 1.1 you have to go to the bin directory and execute the aom_upgrade.sh script with "sudo bash aom_upgrade.sh". This will update some plugin data and will create indexes in the countly database.
Finally you have to check if the analytics servers are running and possibly start them, if they are not started yet.