服务“CLRExtProc”有 1 个实例。实例“CLRExtProc”，状态未知，有 1 个用于此服务的处理程序

Question

我尝试通过 Oracle 12c 进行备份和恢复，每次关闭数据库时，侦听器和 tnsnames.ora 文件都会重新配置，我不知道为什么。现在，每次发生这种情况，我都必须去找我们的 DBA，他会修复它。今天他休假，所以我花了一整天的时间尝试在notepad++中配置这两个文件。到目前为止，我确信我在 tnsnames.ora 文件中编写的内容没有问题。但问题出在listener.ora文件上。

以下是两者的内容：

tnsnames.ora 文件：

ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

MISL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = misl)
    )
  )

JAHIN =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = jahin)
    )
  )

listener.ora 文件：

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\app\Jahin\product\12.1.0\dbhome_1)
      (PROGRAM = extproc)
    )
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = DESKTOP-TG0P7GL)(PORT = 1521))
    )
  )

每当我尝试通过 lsnrctl status 命令检查侦听器的状态时（每次更改后我都会停止并启动该进程），它都会给我一条消息，表明它找到了该服务，它有多少个实例，但它的状态始终返回未知.

C:\Windows\system32>lsnrctl status

LSNRCTL for 64-bit Windows: Version 12.1.0.2.0 - Production on 27-OCT-2022 16:37:31

Copyright (c) 1991, 2014, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for 64-bit Windows: Version 12.1.0.2.0 - Production
Start Date                27-OCT-2022 16:15:54
Uptime                    0 days 0 hr. 21 min. 38 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   C:\app\Jahin\product\12.1.0\dbhome_1\network\admin\listener.ora
Listener Log File         C:\app\Jahin\diag\tnslsnr\DESKTOP-TG0P7GL\listener\alert\log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1521ipc)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=DESKTOP-TG0P7GL)(PORT=1521)))
Services Summary...
Service "CLRExtProc" has 1 instance(s).
  Instance "CLRExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

还有一件事：每当我尝试登录 sqlplus 时，我都会收到一条消息，提示已连接到空闲实例。然后它不会让启动甚至关闭数据库。

C:\Users\Jahin Catalan Mahbub>sqlplus / as sysdba

SQL*Plus: Release 12.1.0.2.0 Production on Thu Oct 27 15:59:52 2022

Copyright (c) 1982, 2014, Oracle.  All rights reserved.

ERROR:
ORA-01017: invalid username/password; logon denied


Enter user-name: sys as sysdba
Enter password:
Connected to an idle instance.

SQL> show parameter
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0


SQL> show parameter uniq
ORA-01034: ORACLE not available
Process ID: 0
Session ID: 0 Serial number: 0

SQL> startup
ORA-00119: invalid specification for system parameter LOCAL_LISTENER
ORA-00132: syntax error or unresolved network name 'LISTENER_MISL'

SQL> exit
Disconnected

知道问题出在哪里吗？甚至在这些地方吗？

现在，AFAIR，当我的 DBA 执行此操作并确认其正常工作时，lsnrctl 状态将返回 3 个服务，每个服务都有一个实例，并且每个实例状态均已就绪。所有命令都运行良好。阳光和彩虹。

问题是，在他上次编辑并修复该listener.ora 文件时，我没有保留该文件的副本。因为这个我无法完成任何工作。

Answer 1

我今天与我的 DBA 进行了交谈，我们找到了解决我的问题的方法。事实证明，listener.ora 基本上没问题。我只需要在 tnsnames.ora 文件中添加一行即可。

LISTENER_MISL = (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))

ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

MISL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = misl)
    )
  )

JAHIN =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = jahin)
    )
  )

以下是对 lister.ora 文件进行的细微更改：

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\app\Jahin\product\12.1.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:C:\app\Jahin\product\12.1.0\dbhome_1\bin\oraclr12.dll")
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = DESKTOP-TG0P7GL)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )

到目前为止，我没有收到任何重大错误，我的数据库启动和关闭没有太大问题。