一个oracle实例对于多个监听，一个监听对于多个端口。现在我们可以创建一个oracle实例一个监听的两个端口。这一共有两种方法：
Oracle一个实例配置多个listener或多个端口
listener.ora文件的内容如下:
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = jingyong)
(ORACLE_HOME =/u01/app/oracle/product/10.2.0/db)
(SID_NAME = jingyong)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1521))
)
)
上面的配置只配置了一个listener
下面再增加一个listener_2
SID_LIST_LISTENER_2 =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /u01/app/oracle/product/10.2.0/db)
(PROGRAM = extproc)
)
(SID_DESC =
(GLOBAL_DBNAME = jingyong)
(ORACLE_HOME =/u01/app/oracle/product/10.2.0/db)
(SID_NAME = jingyong)
)
)
LISTENER_2 =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = jingyong)(PORT = 1522))
)
)
SID_LIST_
SID_DESC则注册要提供服务的数据库实例名。这样LISTENER2 才能够提供服务。
再来启动两个listener
[oracle@jingyong udump]$ lsnrctl stop listener
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 13-JAN-2013 18:06:21
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=jingyong)(PORT=1521)))
The command completed successfully
[oracle@jingyong udump]$ lsnrctl start listener_2
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 13-JAN-2013 18:06:37
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting /u01/app/oracle/product/10.2.0/db/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/10.2.0/db/network/admin/listener.ora
Log messages written to /u01/app/oracle/product/10.2.0/db/network/log/listener_2.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=jingyong)(PORT=1522)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=jingyong)(PORT=1522)))
STATUS of the LISTENER
------------------------
Alias listener_2
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 13-JAN-2013 18:06:37
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/10.2.0/db/network/admin/listener.ora
Listener Log File /u01/app/oracle/product/10.2.0/db/network/log/listener_2.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=jingyong)(PORT=1522)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "jingyong" has 1 instance(s).
Instance "jingyong", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[oracle@jingyong udump]$ lsnrctl start listener
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 13-JAN-2013 18:06:41
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Starting /u01/app/oracle/product/10.2.0/db/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /u01/app/oracle/product/10.2.0/db/network/admin/listener.ora
Log messages written to /u01/app/oracle/product/10.2.0/db/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=jingyong)(PORT=1521)))
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=jingyong)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias listener
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date 13-JAN-2013 18:06:41
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/10.2.0/db/network/admin/listener.ora
Listener Log File /u01/app/oracle/product/10.2.0/db/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=jingyong)(PORT=1521)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "jingyong" has 1 instance(s).
Instance "jingyong", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
