lisenter更改主机名之后监听不到服务
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环境描述，linux redhat5.4 + oracle 11.2.0.1
主机名：zky.zhan
主机ip：192.168.214.10
实例SID：zky
问题展现
如果将listenter.ora中监听地址（HOST = zky.zhan）参数更改为监听主机网络地址（HOST = 192.168.214.10）后。发现服务监听不到服务器，一直显示no server ，通过网络服务也不能登录到数据库。
查看tnsname.ora参数
[oracle@zky /]$ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ZKY =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.214.10)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = zky)
)
) |
查看listener.ora参数
我们将默认的zky.zhan修改为ip地址
[oracle@zky /]$ cat /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora
# Generated by Oracle configuration tools.
ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER1 = ON
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
# (ADDRESS = (PROTOCOL = TCP)(HOST = zky.zhan)(PORT = 1521)) (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.214.10)(PORT = 1521)) )
)
ADR_BASE_LISTENER = /u01/app/oracle |
启动监听
发现The listener supports no services，一直监听不到服务
[oracle@zky /]$ lsnrctl start
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 24-APR-2016 05:34:11
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Starting /u01/app/oracle/product/11.2.0/grid/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/zky/listener/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.214.10)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.214.10)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 24-APR-2016 05:34:11
Uptime 0 days 0 hr. 0 min. 0 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/zky/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.214.10)(PORT=1521)))
The listener supports no services
The command completed successfully
|
数据库登录也显示无监听
[oracle@zky /]$ sqlplus system/oracle_4U@zky
SQL*Plus: Release 11.2.0.1.0 Production on Sun Apr 24 05:37:17 2016
Copyright (c) 1982, 2009, Oracle. All rights reserved.
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor
|
解决方法
在纠结多日之后发现当使用ping主机名zky.zhan时发现默认解析为127.0.0.1。于是在试探的状态下将本地解析127.0.0.1修改为192.168.214.10后发现可以正常使用。
更改host
[root@zky /]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#127.0.0.1 zky.zhan zky localhost.localdomain localhost
#::1 localhost6.localdomain6 localhost6
192.168.214.10 zky.zhan zky localhost.localdomain localhost |
重启监听后服务自己监听到了
[oracle@zky /]$ lsnrctl status
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 24-APR-2016 05:43:40
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.214.10)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 24-APR-2016 05:34:11
Uptime 0 days 0 hr. 9 min. 29 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/oracle/product/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/oracle/diag/tnslsnr/zky/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.214.10)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM", status READY, has 1 handler(s) for this service...
Service "zky" has 1 instance(s).
Instance "zky", status READY, has 1 handler(s) for this service...
Service "zkyXDB" has 1 instance(s).
Instance "zky", status READY, has 1 handler(s) for this service...
The command completed successfully
|
登录数据库成功
[oracle@zky /]$ sqlplus system/oracle_4U@zky
SQL*Plus: Release 11.2.0.1.0 Production on Sun Apr 24 05:44:59 2016
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options
SQL> show parameter name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_file_name_convert string
db_name string zky
db_unique_name string zky
global_names boolean FALSE
instance_name string zky
lock_name_space string
log_file_name_convert string
service_names string zky
|
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