客户端无法与服务器连接啊！

wwr

11g的服务器，配好了listener，数据库也处于open状态了，但客户端就是无法连通服务器
在客户端的net manager中测试时提示ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
而在命令提示符下直接连接数据库则会提示ORA-12560: TNS:protocol adapter error
但是使用tnsping时能反馈正常信息：

1. 
   
2. C:\Windows\System32>tnsping dk
   
3. 
   
4. TNS Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on 23-MAY-2
   
5. 011 20:21:21
   
6. 
   
7. Copyright (c) 1997, 2010, Oracle.  All rights reserved.
   
8. 
   
9. Used parameter files:
   
10. e:\oracle\product\11.2.0\client_1\network\admin\sqlnet.ora
    
11. 
    
12. Used TNSNAMES adapter to resolve the alias
    
13. Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)
    
14. (HOST = taco.sea.nr)(PORT = 1521))) (CONNECT_DATA = (SERVER = SHARED) (SERVICE_N
    
15. AME = dark)))
    
16. OK (1130 msec)
    

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而在服务器上：

1. [oracle@taco ~]$ lsnrctl status
   
2. 
   
3. LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 23-MAY-2011 21:07:29
   
4. 
   
5. Copyright (c) 1991, 2009, Oracle.  All rights reserved.
   
6. 
   
7. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=taco.sea.nr.)(PORT=1521)))
   
8. STATUS of the LISTENER
   
9. ------------------------
   
10. Alias                     LISTENER
    
11. Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production
    
12. Start Date                23-MAY-2011 20:19:59
    
13. Uptime                    0 days 0 hr. 47 min. 29 sec
    
14. Trace Level               off
    
15. Security                  ON: Local OS Authentication
    
16. SNMP                      OFF
    
17. Listener Parameter File   /u01/oracle/11g/database/network/admin/listener.ora
    
18. Listener Log File         /u01/oracle/diag/tnslsnr/taco/listener/alert/log.xml
    
19. Listening Endpoints Summary...
    
20.   (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=taco.sea.nr)(PORT=1521)))
    
21. Services Summary...
    
22. Service "ORCLXDB.dark.sea.nr" has 1 instance(s).
    
23.   Instance "dark", status READY, has 2 handler(s) for this service...
    
24. Service "dark.dark.sea.nr" has 1 instance(s).
    
25.   Instance "dark", status READY, has 1 handler(s) for this service...
    
26. The command completed successfully

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alongx

rac 吗？ 好像11.2.0.1 有个bug 会造成这个情况

wwr

不是rac，就一般性的单个服务器

luckrui001

你客户端tnsnames.ora配置正确了吗

wwr

回复 4# luckrui001

肯定没有问题的吧，tnsping都可以的啊

guyeh

看看listern.ora和listern.log吧

renxiao2003

客户端的连接命令贴出来看看。

wwr

listener.ora:

1. 
   
2. LISTENER =
   
3.   5   (DESCRIPTION =
   
4.   6     (ADDRESS = (PROTOCOL = TCP)(HOST = taco.sea.nr.)(PORT = 1521))
   
5.   7   )
   
6.   8
   
7.   9 ADR_BASE_LISTENER = /u01/oracle
   

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listener.log

1. 
   
2. 
   
3. 449 23-MAY-2011 22:00:42 * (CONNECT_DATA=(SERVICE_NAME=dark)(SERVER=SHARED)(CID=    (PROGRAM=e:\oracle\product\11.2.0\client_1\jdk\jre\bin\java.exe)(HOST=FLINT)    (USER=nabor))) * (ADDRESS=(PROTOCOL=tcp)(HOST=192.168.18.1)(PORT=51358)) * e    stablish * dark * 12514
   
4. 450 TNS-12514: TNS:listener does not currently know of service requested in conn    ect descriptor
   
5. 451 Mon May 23 22:01:02 2011
   
6. 452 23-MAY-2011 22:01:02 * service_update * dark * 0
   

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客户端下现在连接提示相同的错误

1. 
   
2. SQL> conn tom@dk
   
3. Enter password:
   
4. ERROR:
   
5. ORA-12514: TNS:listener does not currently know of service requested in connect
   
6. descriptor
   

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guyeh

服务器上lsnrctl reload看看

luckrui001

客户端上的tnsnames.ora贴出来看下！