Maybe not as lightweight, but GoAccess (https://github.com/allinurl/goaccess) does an awesome job at parsing the logs and displaying statistics, works for nginx and other webservers too
Goaccess used to work perfectly, but recently when ever I try to run the real time HTML command, it exits without any error messages after ~2 million records. Maybe out of memory.. any ideas?
For us it was literately an `apt install goaccess`, picked the COMBINED log format and it's been running for over a month in prod without issues (rotating weekly).