$ mysql -h127.0.0.1 -P3308 -uroot@sys -A
ERROR 2013 (HY000): Lost connection to MySQL server at 'reading authorization packet', system error: 0
$ obclient -h127.0.0.1 -P3308 -uroot@sys -A
ERROR 2013 (HY000): Lost connection to MySQL server at 'reading authorization packet', system error: 11
$ /home/admin/obproxy/bin/obproxy -V
obproxy (OceanBase 3.2.3.5 2)
REVISION: 1-local-4cc2f2e1f696a76e0b5831f6e88e76e0a6831255
BUILD_TIME: Sep 5 2022 19:47:46
obclient [(none)]> \s
--------------
obclient Ver 2.0.2 Distrib 10.4.18-MariaDB, for Linux (x86_64) using readline 5.1
Connection id: 3221749764
Current database:
Current user: root@172.16.16.7
SSL: Not in use
Current pager: stdout
Using outfile: ''
Using delimiter: ;
Server version: 5.7.25 OceanBase 3.1.4 (r100000112022102717-39c3a048177154899edf1160e873979ea78dadd1) (Built Oct 27 2022 18:03:03)