Error logs in ee3

IN ee2 we could specify the path for error logs using the log_path in the config file. But in ee3 I only see settings for a log threshold and a log date format. when i set the threshold to 4 I’m not seeing logs being generated

so my question is twofold.

1. where is the default path for error logs when you have them enabled?
2. Is there a way to set the path since the log_path no longer works?