gaussdb 100默认密码修改后在nomount，mount状态下无法用新密码登录，只能用默认密码登录，反复测试也是如此，测试结果如下：

默认密码：Changeme_123
修改后的新密码：Gaussdb_123

1，open状态下新密码正常登录

SQL> select status from dv_database;

STATUS              
--------------------
OPEN                

1 rows fetched.

SQL> quit

[omm@dm bin]$ zsql sys/Gaussdb_123@127.0.0.1:1888

Warning: SSL connection to server without CA certificate is insecure. Continue anyway? (y/n):y
connected.


SQL> quit

2，nomount，mount状态下只能用默认密码登录，新密码无法登录

[omm@dm bin]$ python zctl.py -t stop 
Successfully stopped instance.
[omm@dm bin]$ python zctl.py -t start -m nomount  
Successfully started instance.
[omm@dm bin]$ zsql sys/Gaussdb_123@127.0.0.1:1888

Warning: SSL connection to server without CA certificate is insecure. Continue anyway? (y/n):y
GS-00329, Incorrect user or password

[omm@dm bin]$ zsql sys/Changeme_123@127.0.0.1:1888

Warning: SSL connection to server without CA certificate is insecure. Continue anyway? (y/n):y
connected.


SQL> alter database mount;

Succeed.

SQL> quit

[omm@dm bin]$ zsql sys/Gaussdb_123@127.0.0.1:1888

Warning: SSL connection to server without CA certificate is insecure. Continue anyway? (y/n):y
GS-00329, Incorrect user or password

[omm@dm bin]$ zsql sys/Changeme_123@127.0.0.1:1888

Warning: SSL connection to server without CA certificate is insecure. Continue anyway? (y/n):y
connected.

SQL>

查了官方文档，也没有这方面的解释，有木有大佬出来解释一下