环境：OraDB10g_home
问题：1.在用PL/SQL Developer连接数据库时出现“ORA-12541:TNS:无监听程序”错误。
2.使用Net Manager 更改本地数据库服务IP地址后抛出“ORA-12541:TNS:无监听程序”错误。
步骤：
1、检查listener.log日志, 发现下面错误：
TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production on
20-9月 -2008 10:25:26
Copyright (c) 1991, 2005, Oracle. All rights
reserved.
系统参数文件为D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
写入D:\oracle\product\10.2.0\db_1\network\log\listener.log的日志信息
写入D:\oracle\product\10.2.0\db_1\network\trace\listener.trc的跟踪信息
跟踪级别当前为0
以 pid=1704 开始
监听:
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
监听该对象时出错:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=0.5.0.5)(PORT=1521)))
TNS-12545: 因目标主机或对象不存在, 连接失败
TNS-12560: TNS: 协议适配器错误
TNS-00515: 因目标主机或对象不存在, 连接失败
32-bit Windows Error: 49:
Unknown error
不再监听:
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
2、查看Oracle的listener是否启动
C:\Documents and Settings\user>lsnrctl status
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on
20-9月 -2008 10:50:44
Copyright (c) 1991, 2005, Oracle. All rights
reserved.
正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
TNS-12541: TNS: 无监听程序
TNS-12560: TNS: 协议适配器错误
TNS-00511: 无监听程序
32-bit Windows Error: 2: No
such file or directory
正在连接到
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=0.5.0.5)(PORT=1521)))
TNS-12535: TNS: 操作超时
TNS-12560: TNS: 协议适配器错误
TNS-00505: 操作超时
32-bit Windows Error: 60:
Unknown error
原来没有启动listener，用“lsnrctl start”命令也不能启动。
C:\Documents and Settings\user>lsnrctl start
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on
20-9月 -2008 10:52:16
Copyright (c) 1991, 2005, Oracle. All rights
reserved.
启动tnslsnr: 请稍候...
TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 -
Production
系统参数文件为D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
写入D:\oracle\product\10.2.0\db_1\network\log\listener.log的日志信息
监听:
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
监听该对象时出错:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=0.5.0.5)(PORT=1521)))
TNS-12545: 因目标主机或对象不存在, 连接失败
TNS-12560: TNS: 协议适配器错误
TNS-00515: 因目标主机或对象不存在, 连接失败
32-bit Windows Error: 49:
Unknown error
监听程序未能启动。请参阅上面的错误消息...
3、查看listener.ora的内容：
# listener.ora Network Configuration File:
D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC
=
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION
=
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = 0.5.0.5)(PORT = 1521))
)
)
原来本机的ip发生改变后，就出现了上述问题，改变数据库的监听ip地址:
把(ADDRESS = (PROTOCOL = TCP)(HOST = 0.5.0.5)(PORT = 1521))
改成
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
127.0.0.1：也就是目前数据库正在用的ip地址。
4、再次启动oracle的listener
C:\Documents and Settings\mengzhaoliang>lsnrctl
start
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on
20-9月 -2008 10:54:40
Copyright (c) 1991, 2005, Oracle. All rights
reserved.
启动tnslsnr: 请稍候...
TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 -
Production
系统参数文件为D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
写入D:\oracle\product\10.2.0\db_1\network\log\listener.log的日志信息
监听:
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
监听:
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
LISTENER 的 STATUS
------------------------
别名 LISTENER
版本 TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production
启动日期 20-9月 -2008 10:54:41
正常运行时间 0 天 0 小时 0 分 1 秒
跟踪级别 off
安全性 ON: Local OS Authentication
SNMP OFF
监听程序参数文件 D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
监听程序日志文件 D:\oracle\product\10.2.0\db_1\network\log\listener.log
监听端点概要...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
服务摘要..
服务 "PLSExtProc" 包含 1 个例程。
例程 "PLSExtProc", 状态 UNKNOWN, 包含此服务的 1
个处理程序...
命令执行成功
启动已经成功，
如果已使用Net Manager
更改本地数据库服务IP地址(即遇到了问题2的情况)，那么问题应该已经解决，不需要执行下面的步骤了。
如果还出现错误，试试重启了一下OracleOraDb10g_home1TNSListener服务。
5.在tnsnames.ora上添加上
ORCL_127.0.0.1 =
(DESCRIPTION =
(ADDRESS =
(PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
6、再次用PL/SQL Developer再次连接数据库
出现下面错误：
TNS-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务
再次检查listener.log日志
20-9月 -2008 11:01:54 *
(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=orcl)(CID=
(PROGRAM=D:\plsql\plsqldev.exe)(HOST=RUIFEI-EF0ADC98)(USER=mengzhaoliang)))
* (ADDRESS=
(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1267)) * establish * orcl *
12514
TNS-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务
查看listener：
C:\Documents and Settings\user>lsnrctl services
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on
20-9月 -2008 11:11:09
Copyright (c) 1991, 2005, Oracle. All rights
reserved.
正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
服务摘要..
服务 "PLSExtProc" 包含 1 个例程。
例程 "PLSExtProc", 状态 UNKNOWN, 包含此服务的 1
个处理程序...
处理程序:
"DEDICATED" 已建立:0 已被拒绝:0
LOCAL SERVER
命令执行成功
7、用sqlplus也出现同样错误：
C:\Documents and
Settings\user>sqlplusscott/[email protected]_127.0.0.1
SQL*Plus: Release 10.2.0.1.0 - Production on 星期六 9月 20 11:15:09
2008
Copyright (c) 1982, 2005, Oracle. All rights
reserved.
ERROR:
ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务
8、查看listenser状态：
C:\Documents and Settings\mengzhaoliang>lsnrctl
status
LSNRCTL for 32-bit Windows: Version 10.2.0.1.0 - Production on
20-9月 -2008 11:26:42
Copyright (c) 1991, 2005, Oracle. All rights
reserved.
正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))
LISTENER 的 STATUS
------------------------
别名 LISTENER
版本 TNSLSNR for 32-bit Windows: Version 10.2.0.1.0 - Production
启动日期 20-9月 -2008 11:24:33
正常运行时间 0 天 0 小时 2 分 8 秒
跟踪级别 off
安全性 ON: Local OS Authentication
SNMP OFF
监听程序参数文件 D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
监听程序日志文件 D:\oracle\product\10.2.0\db_1\network\log\listener.log
监听端点概要...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(PIPENAME=\\.\pipe\EXTPROC1ipc)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
服务摘要..
服务 "PLSExtProc" 包含 1 个例程。
例程 "PLSExtProc", 状态 UNKNOWN, 包含此服务的 1
个处理程序...
命令执行成功
C:\Documents and Settings\user>tnsping orcl
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 -
Production on 20-9月 -2008 11:27:43
Copyright (c) 1997, 2005, Oracle. All rights
reserved.
已使用的参数文件:
D:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora
TNS-03505: 无法解析名称
9、查看sqlnet.ora内容：
# sqlnet.ora Network Configuration File:
D:\oracle\product\10.2.0\db_1\network\admin\sqlnet.ora
# Generated by Oracle configuration tools.
# This file is actually generated by netca. But if customers
choose to
# install "Software Only", this file wont exist and without the
native
# authentication, they will not be able to connect to the database
on NT.
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES, EZCONNECT)
10.把listener.ora的内容：
# listener.ora Network Configuration File:
D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC
=
(SID_NAME = PLSExtProc)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
(PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION
=
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
)
改成下面的内容：
# listener.ora Network Configuration File:
D:\oracle\product\10.2.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC
=
(SID_NAME = orcl)
(ORACLE_HOME = D:\oracle\product\10.2.0\db_1)
# (PROGRAM = extproc)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION
=
(ADDRESS = (PROTOCOL = IPC)(KEY = orcl))
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
)
11、然后关闭、再启动listener
在cmd中执行“lsnrctl stop” 和“lsnrctl stop”命令，再次登陆正常！
C:\Documents and
Settings\user>sqlplusscott/[email protected]
SQL*Plus: Release 10.2.0.1.0 - Production on 星期六 9月 20 11:55:47
2008
Copyright (c) 1982, 2005, Oracle. All rights
reserved.
连接到:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 -
Production
With the Partitioning, OLAP and Data Mining options
SQL>
再次用PL/SQL Developer登陆就没有问题了。
完毕!