This Zeppelin library which adds GeoIP conversion UDF with dependencies and creates a temporary function to use it.
Install 'geoip' through ZAN menu on Zeppelin
SELECT
geocode_ip(remote_ip, 'city', 'GeoLiteCity.dat') as city,
geocode_ip(remote_ip, 'country', 'GeoLiteCity.dat') as country
FROM nginx_log limit 50;