oracle 監聽服務配置

最近在red hat 6.6虛擬機上安裝了Oracle 11gR2數據庫，安裝完畢，使用沒有問題，通過主機也可以訪問到虛擬機上的數據庫。然而，在重新啟動虛擬機后，主機無法訪問到數據庫，提示錯誤：

PS C:\Users\13842> sqlplus sys/Lijiaman3102700@orcl as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on 星期六 2月 25 16:56:47 2017

Copyright (c) 1982, 2010, Oracle.  All rights reserved.

ERROR:
ORA-12541: TNS: 無監聽程序


請輸入用戶名:

發現沒有監聽程序，於是到虛擬機上查看監聽器狀態，結果如下：

LSNRCTL> status
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 2: No such file or directory
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused

發現是監聽器沒有啟動，啟動即可：

[oracle@localhost Desktop]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 25-FEB-2017 18:13:56

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Starting /home/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /home/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /home/app/oracle/diag/tnslsnr/localhost/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date                25-FEB-2017 18:13:56
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Listener Log File         /home/app/oracle/diag/tnslsnr/localhost/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
The listener supports no services
The command completed successfully

啟動之后，新的問題又出現了，在倒數第2行，提示：The listener support no services。說明Oracle的服務並沒有注冊到監聽器，這時，使用主機上的客戶端連接數據庫，會提示錯誤：

ERROR:
ORA-12514: TNS: 監聽程序當前無法識別連接描述符中請求的服務

 

接下來配置監聽服務信息，在虛擬機上打開網絡管理界面：

[oracle@localhost Desktop]$ netmgr

出現如下界面，點擊Local->Listeners->Listener->Database Services->Add Database：

三個參數設置：

· Global Database Name:

SQL> select * from global_name;

GLOBAL_NAME
--------------------------------------------------------------------
ORCL

· Oracle Home Dictionary: Oracle安裝路徑，一般為：../app/oracle/product/11.2.0/dbhome_1

· SID：默認ORCL

點擊File->Save network Configuration。

重啟數據庫，解決。