"疼痛"的TNS-12514

今天安装了oralce 11g，一切都很顺利的完成了安装，然后启动oralce的监听。

 centos-> lsnrctl start

LSNRCTL for Linux: Version 11.1.0.6.0 - Production on 16-FEB-2009 13:24:48

Copyright (c) 1991, 2007, Oracle.  All rights reserved.

Starting /opt/oracle/product/11.0.13//bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.1.0.6.0 - Production
System parameter file is /opt/oracle/product/11.0.13/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/centos/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.233)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.233)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.1.0.6.0 - Production
Start Date                16-FEB-2009 13:24:49
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/oracle/product/11.0.13/network/admin/listener.ora
Listener Log File         /opt/oracle/diag/tnslsnr/centos/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.233)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "nuage" has 1 instance(s).
  Instance "nuage", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

登录本机数据库进行管理：

centos-> sqlplus " /as sysdba"

SQL*Plus: Release 11.1.0.6.0 - Production on Mon Feb 16 13:25:29 2009

Copyright (c) 1982, 2007, Oracle.  All rights reserved.

Connected to:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

SQL> startup

    以上步骤都没有问题，接下来通过工具PLSQL Developer来管理数据库，大致配置下客户端的tnsnames.ora即可。假设tnsnames.ora配置完成，
现在问题出现了，当我们通过PLSQL Developer连接时出现了错误ORA-12514: TNS: 监听进程不能解析在连接描述符中。根据我的经验可以判断是listener.ora配置错误造成的，于是就去看listener的日志信息。

 centos-> tail -f  /opt/oracle/diag/tnslsnr/centos/listener/alert/log.xml
 </msg>
<msg time='2009-02-16T12:59:22.834+08:00' org_id='oracle' comp_id='tnslsnr'
 type='UNKNOWN' level='16' host_id='centos'
 host_addr='192.168.1.233'>
 <txt>TNS-12514: TNS:listener does not currently know of service requested in connect descriptor
 </txt>
</msg>

  原因:listener没设置好(很奇怪用configuration manager 新增的listener不能用)
手动修改了listener.ora之後就好了.listener.ora的内容如下：

# listener.ora Network Configuration File: /opt/oracle/product/11.0.13/network/admin/listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
       (GLOBAL_DBNAME=nuage)
       (ORACLE_HOME = /opt/oracle/product/11.0.13/)
        (SID_NAME=nuage))
       (SID_DESC=
       (SID_NAME = PLSExtProc)
      (ORACLE_HOME = /opt/oracle/product/11.0.13/)
      (PROGRAM = extproc)
    )
   )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.233)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0))
    )
  )

顺便记录下tnsnames.ora的内容：

# tnsnames.ora Network Configuration File: /opt/oracle/product/11.0.13/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.

LISTENER_NUAGE =
  (ADDRESS = (PROTOCOL = TCP)(HOST = centos)(PORT = 1521))

NUAGE =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = centos)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = nuage)
    )
  )