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