/etc/hosts/中HOSTNAME错误导致lsnrctl启动错误

系统环境：REDHAT LINUX5.4 + ORACLE10.2.0.4，是通过虚拟机复制另外一台数据库系统环境后安装ORACLE获得。

故障现象：ORACLE安装正常，本地服务正常，本地数据通过IMP可以正常导入，但是LSNRCTL能够启动，但我们要的port服务未能正常监听。

[oracle@L-DB-100-27 ~]$ lsnrctl start

LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 24-8月 -2012 10:45:15

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

------------------------

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.4.0 - Production

Start Date 24-8月 -2012 10:45:00

Uptime 0 days 0 hr. 0 min. 15 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/product/10.2.0/db_1/network/admin/listener.ora

Listener Log File /u01/product/10.2.0/db_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=172.16.100.27)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

查看listener.ora和tnsnames.ora设置中的设置，未见异常。但当尝试把HOST从IP修改成HOSTNAME时却出现监听无法启动的现象。

# listener.ora Network Configuration File: /home/oracle/product/10.2.0/db_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(SID_NAME = PLSExtProc)

(ORACLE_HOME = /u01/product/10.2.0/db_1)

(PROGRAM = extproc)

)

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.100.27)(PORT = 1521))

)

# tnsnames.ora Network Configuration File: /home/oracle/product/10.2.0/db_1/network/admin/tnsnames.ora

# Generated by Oracle configuration tools.

ZJPORT =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.100.27)(PORT = 1521))

(CONNECT_DATA =

(SERVER = DEDICATED)

(SERVICE_NAME = zjport)

)

EXTPROC_CONNECTION_DATA =

(DESCRIPTION =

(ADDRESS_LIST =

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))

)

(CONNECT_DATA =

(SID = PLSExtProc)

(PRESENTATION = RO)

)

查看HOSTNAME，发现正常

[oracle@L-DB-100-27 ~]$ hostname

L-DB-100-27

但查看/etc/hosts配置，发现了问题，显然L-DB-100-17并不是本机的HOSTNAME

[oracle@L-DB-100-27 ~]$ more /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

#172.16.100.17 L-DB-100-17 localhost.localdomain localhost

127.0.0.1 L-DB-100-17 localhost.localdomain localhost

::1 localhost6.localdomain6 localhost6

通过VI修改HOSTNAME为L-DB-100-27，尝试重启lsnrctl，发现启动不了（提示已经启动）。

明明已经lsnrctl stop过，通过ps -ef|grep lsnrctl也未发现相关进程

重启操作系统

shutdown -r now

启动ORACLE服务（正常）

启动监听（正常--问题解决）

[oracle@L-DB-100-27 ~]$ lsnrctl stat

LSNRCTL for Linux: Version 10.2.0.4.0 - Production on 24-8月 -2012 10:46:16

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1)))

STATUS of the LISTENER

------------------------

Alias LISTENER

Version TNSLSNR for Linux: Version 10.2.0.4.0 - Production

Start Date 24-8月 -2012 10:45:00

Uptime 0 days 0 hr. 1 min. 15 sec

Trace Level off

Security ON: Local OS Authentication

SNMP OFF

Listener Parameter File /u01/product/10.2.0/db_1/network/admin/listener.ora

Listener Log File /u01/product/10.2.0/db_1/network/log/listener.log

Listening Endpoints Summary...

(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)))

(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=L-DB-100-27)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

Service "port" has 1 instance(s).

Instance "port", status READY, has 1 handler(s) for this service...

Service "portXDB" has 1 instance(s).

Instance "port", status READY, has 1 handler(s) for this service...

Service "port_XPT" has 1 instance(s).

Instance "port", status READY, has 1 handler(s) for this service...

The command completed successfully

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/etc/hosts/中HOSTNAME错误导致lsnrctl启动错误

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