RAC hosts沒(méi)有配置導(dǎo)致TNS-12541: TNS:no listener

TNS-12541: TNS:no listener
這次錯(cuò)誤我總結(jié)一下有三種情況
1. 本地監(jiān)聽(tīng)程序沒(méi)有開(kāi)起來(lái)
2. 服務(wù)器網(wǎng)絡(luò)到客戶端網(wǎng)絡(luò)不通
3. Hosts里面配置問(wèn)題

[Oracle@his1 admin]$ tnsping crds3db2 客戶端tnsping提示程序無(wú)監(jiān)聽(tīng)

TNS Ping Utility for Linux: Version 11.2.0.2.0 - Production on 28-MAY-2014 11:11:57

Copyright (c) 1997, 2010, Oracle. All rights reserved.

Used parameter files:

Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.20.8)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = crds3db)))
TNS-12541: TNS:no listener
到oracle用戶查看監(jiān)聽(tīng)狀態(tài)為正常，但是有一個(gè)節(jié)點(diǎn)1ip沒(méi)有注冊(cè)到節(jié)點(diǎn)2監(jiān)聽(tīng)上面
[oracle@his1 ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 28-MAY-2014 10:56:09

Copyright (c) 1991, 2010, Oracle. All rights reserved.

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 28-MAY-2014 10:09:10
Uptime 0 days 0 hr. 46 min. 59 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /app/grid/product/11.2.0/grid/network/admin/listener.ora
Listener Log File /app/grid/grid_base/diag/tnslsnr/his1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.20.6)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "crds3db" has 1 instance(s).
Instance "crds3db1", status READY, has 1 handler(s) for this service...
The command completed successfully

[root@his1 admin]# vi /etc/hosts
把里面刪除his1 因?yàn)閮蓚€(gè)計(jì)算名沖突導(dǎo)致監(jiān)聽(tīng)只注冊(cè)到127.0.0.1
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 his1 localhost.localdomain localhost
#::1 localhost6.localdomain6 localhost6
192.168.20.1 his1
192.168.20.2 his2
192.168.20.5 his-scan
192.168.20.6 his1-vip
192.168.20.7 his2-vip
192.168.20.15 hisdg
10.0.0.1 his1-priv
10.0.0.2 his2-priv
[grid@his2 ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 28-MAY-2014 11:18:14

Copyright (c) 1991, 2010, Oracle. All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.2.0 - Production
Start Date 28-MAY-2014 11:06:52
Uptime 0 days 0 hr. 11 min. 22 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /app/grid/product/11.2.0/grid/network/admin/listener.ora
Listener Log File /app/grid/grid_base/diag/tnslsnr/his2/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.20.2)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.20.7)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM2", status READY, has 1 handler(s) for this service...
Service "crds3db" has 1 instance(s).
Instance "crds3db2", status READY, has 1 handler(s) for this service...
The command completed successfully
C:\Users\oracle>tnsping crds3db

TNS Ping Utility for 32-bit Windows: Version 11.2.0.1.0 - Production on 28-5月 -
2014 11:32:16

Copyright (c) 1997, 2010, Oracle. All rights reserved.

已使用的參數(shù)文件:
D:\app\mxq\product\11.2.0\dbhome_1\network\admin\sqlnet.ora

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