Oracle 监听器无法启动（TNS-12537，TNS-12560，TNS-00507）

Oracle启动监听报错，提示 连接中断

[oracle@localhost ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 20:02:16

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Starting /opt/oracle/11g/bin/tnslsnr: please wait...

TNS-12537: TNS:connection closed
 TNS-12560: TNS:protocol adapter error
  TNS-00507: Connection closed
   Linux Error: 29: Illegal seek

这样一般是主机名不对，观察监听状态，监听主机名为 localhost:

[oracle@localhost ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 20:02:48

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused

查看主机名，发现/etc/hosts内localhost只想多个地址，引发监听冲突

[root@localhost ~]# cat /etc/hosts
127.0.0.1   localhost.domain localhost
10.4.40.70  localhost

修改主机名：

1 hostname 

hostname oracle

2 /etc/hosts

127.0.0.1 localhost localhost.domain
192.168.0.1 oracle

3 /etc/sysconfig/network

hostname = oracle

再次启动,成功

[oracle@oracle ~]$ lsnrctl start

LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 06-AUG-2014 20:07:41

Copyright (c) 1991, 2009, Oracle.  All rights reserved.

Starting /opt/oracle/11g/bin/tnslsnr: please wait...

TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /opt/oracle/11g/network/admin/listener.ora
Log messages written to /opt/oracle/diag/tnslsnr/oracle/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date                06-AUG-2014 20:07:43
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /opt/oracle/11g/network/admin/listener.ora
Listener Log File         /opt/oracle/diag/tnslsnr/oracle/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
The listener supports no services
The command completed successfully