System Log Level (ui)

info
error
trace
debug
warning

what does each of them do will selected?
where can we find diffrence?

plese help me out

If you looking for N1QL query service https://docs.couchbase.com/server/current/settings/query-settings.html#loglevel
The info goes in https://docs.couchbase.com/server/current/manage/manage-logging/manage-logging.html#log-file-locations query.log