mysqldump was given --host=tcp --port=//host:port for the tcp:// form the servers accept, so
backups failed. Read mysql_host the way the servers connect with it: tcp://host:port (a trailing
/database is dropped), unix:// as --socket and pipe:// as a named pipe.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>