Oracle 12.2 ORA-28389: cannot close auto login wallet

wallet无法关闭
[code]SQL> administer key management set keystore close;
administer key management set keystore close
*
ERROR at line 1:
ORA-28389: cannot close auto login wallet

SQL> administer key management set keystore open identified by Oracle_123 ;
administer key management set keystore open identified by Oracle_123
*
ERROR at line 1:
ORA-28354: Encryption wallet, auto login wallet, or HSM is already open[/code]
查到文档
TDE Wallet Problem in 12c: Cannot do a Set Key operation when an auto-login wallet is present (Doc ID 1944507.1)

rm -rf /u01/app/oracle/admin/orasql/tde_wallet/cwallet.sso
不过删除文件后，状态还是open，后来重启了数据库。
[code]SQL> !rm /u01/app/oracle/admin/orasql/tde_wallet/cwallet.sso

SQL> administer key management set keystore close;
administer key management set keystore close
*
ERROR at line 1:
ORA-28389: cannot close auto login wallet

SQL> select status, wallet_type, con_id from v$encryption_wallet;

STATUS WALLET_TYPE CON_ID
---------- -------------------- ----------
OPEN PASSWORD 1

SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup
ORACLE instance started.

Total System Global Area 4.5097E+10 bytes
Fixed Size 19421688 bytes
Variable Size 5905581576 bytes
Database Buffers 3.9057E+10 bytes
Redo Buffers 114794496 bytes
Database mounted.
Database opened.
SQL> select status, wallet_type, con_id from v$encryption_wallet;

STATUS WALLET_TYPE CON_ID
---------- -------------------- ----------
CLOSED UNKNOWN 1[/code]
重启后状态变成了closed，此时重建：
[code]SQL> administer key management set keystore open identified by Oracle_123;

keystore altered.

SQL> administer key management set key identified by Oracle_123 with backup;

keystore altered.

SQL> administer key management create auto_login keystore from keystore '/u01/app/oracle/admin/orasql/tde_wallet/' identified by Oracle_123;

keystore altered.[/code]