As the subject states, I followed https://community.microfocus.com/t5/HPE-ArcSight-Logger-Questions/The-password-for-the-arcsight-account-to-access-mysql-database/qaq-p/1582236 to update the arcsight user's password in mysql.
Upon restarting the server, mysqld won't boot. If I edit my.cnf to include skip-grant-tables again and reboot the server, mysqld starts as expected.
Clearly I'm missing a location to update the new password. Any help would be greatly appreciated.