Today, a database server login failed, report TNS-12541: TNS: no listener
Check the listener status on the server
1. oracle @ linux-34: ~> Lsnrctl status
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0-Production on 14-OCT-2011 09:12:37
4.
5. Copyright (c) 1991,200 7, Oracle. All rights reserved.
6.
7. Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = linux-34.site) (PORT = 1521 )))
8. TNS-12541: TNS: no listener
9. TNS-12560: TNS: protocol adapter error
TNS-00511: No listener
11. Linux Error: 111: Connection refused
12. Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC) (KEY = EXTPROC1521 )))
13. TNS-12541: TNS: no listener
14. TNS-12560: TNS: protocol adapter error
TNS-00511: No listener
16. Linux Error: 111: Connection refused
Start
1. oracle @ linux-34: ~> Lsnrctl start
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0-Production on 14-OCT-2011 09:12:45
4.
5. Copyright (c) 1991,200 7, Oracle. All rights reserved.
6.
7. Starting/home/oracle/product/11.1.0/db_1/bin/tnslsnr: please wait...
8.
9. TNSLSNR for Linux: Version 11.1.0.6.0-Production
10. System parameter file is/home/oracle/product/11.1.0/db_1/network/admin/listener. ora
11. Log messages written to/home/oracle/diag/tnslsnr/linux-34/listener/alert/log. xml
12. Error listening on: (ADDRESS = (PROTOCOL = ipc) (PARTIAL = yes) (QUEUESIZE = 1 ))
13. No longer listening on: (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = linux-34.site) (PORT = 1521 )))
14. TNS-12546: TNS: permission denied
15. TNS-12560: TNS: protocol adapter error
16. TNS-00516: Permission denied
17. Linux Error: 13: Permission denied
18.
19. Listener failed to start. See the error message (s) abve...
Unexpectedly reported TNS-12546: TNS: permission denied
View the permissions for accessing the/var/tmp/. oracle and/tmp/. oracle directories.
1. linux-34 :~ # Ls-lrtd/tmp/. oracle
2. drwxrwxrwx 2 root 4096 May 9/tmp/. oracle
3.
4. linux-34 :~ # Ls-lrtd/var/tmp/. oracle
5. drwxr-xr-x 2 root 4096 Oct 14/var/tmp/. oracle
This is the reason./var/tmp/. oracle has the 755 permission and changed it to 777.
Chmod-R 777/var/tmp/. oracle
Then start the listener.
1. oracle @ linux-34: ~> Lsnrctl start
2.
3. LSNRCTL for Linux: Version 11.1.0.6.0-Production on 14-OCT-2011 09:45:04
4.
5. Copyright (c) 1991,200 7, Oracle. All rights reserved.
6.
7. Starting/home/oracle/product/11.1.0/db_1/bin/tnslsnr: please wait...
8.
9. TNSLSNR for Linux: Version 11.1.0.6.0-Production
10. System parameter file is/home/oracle/product/11.1.0/db_1/network/admin/listener. ora
11. Log messages written to/home/oracle/diag/tnslsnr/linux-34/listener/alert/log. xml
12. Listening on: (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = linux-34.site) (PORT = 1521 )))
13. Listening on: (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC1521 )))
14.
15. Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = linux-34.site) (PORT = 1521 )))
16. STATUS of the LISTENER
17 .------------------------
18. Alias LISTENER
19. Version TNSLSNR for Linux: Version 11.1.0.6.0-Production
20. Start Date 14-OCT-2011 09:45:04
21. Uptime 0 days 0 hr. 0 min. 0 sec
22. Trace Level off
23. Security ON: Local OS Authentication
24. SNMP OFF
25. Listener Parameter File/home/oracle/product/11.1.0/db_1/network/admin/listener. ora
26. Listener Log File/home/oracle/diag/tnserver SNR/linux-34/listener/alert/log. xml
27. Listening Endpoints Summary...
28. (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = linux-34.site) (PORT = 1521 )))
29. (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC1521 )))
30. The listener supports no services
31. The command completed successfully
32. oracle @ linux-34: ~> Lsnrctl status
33.
34. LSNRCTL for Linux: Version 11.1.0.6.0-Production on 14-OCT-2011 09:46:02
35.
36. Copyright (c) 1991,200 7, Oracle. All rights reserved.
37.
38. Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = linux-34.site) (PORT = 1521 )))
39. STATUS of the LISTENER
40 .------------------------
41. Alias LISTENER
42. Version TNSLSNR for Linux: Version 11.1.0.6.0-Production
43. Start Date 14-OCT-2011 09:45:04
44. Uptime 0 days 0 hr. 0 min. 58 sec
45. Trace Level off
46. Security ON: Local OS Authentication
47. SNMP OFF
48. Listener Parameter File/home/oracle/product/11.1.0/db_1/network/admin/listener. ora
49. Listener Log File/home/oracle/diag/tnserver SNR/linux-34/listener/alert/log. xml
50. Listening Endpoints Summary...
51. (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = linux-34.site) (PORT = 1521 )))
52. (DESCRIPTION = (ADDRESS = (PROTOCOL = ipc) (KEY = EXTPROC1521 )))
53. Services Summary...
54. Service "orarpt" has 1 instance (s ).
55. Instance "orarpt", status READY, has 1 handler (s) for this service...
56. Service "orarpt_XPT" has 1 instance (s ).
57. Instance "orarpt", status READY, has 1 handler (s) for this service...
58. The command completed successfully
Solve the problem.
This article is from the "richard's note" blog