Could not get Fess_crawler.log file

I am using Centos 8 to install fess 12.7 es6.8.5 JVM1.8.0_232
I did not get any error from fess in setting and I just setting simple file cralwer using file:/home/test
and executing schedule -> Default Crawler.
I did not get any error. but when I searching some thing . There is nothing can be hit and there is no Fess_crawler.log even I set logging output to all.
Did I miss some thing?

If fess-crawler.log does not exist, I do not think Crawler runs.
It’s better to check all log files.

I got the reason Thank you
I make some mistake on /etc/fess/ in comment out describing