修改Oracle 11gR2 RAC SCAN监听和本地监听端口

修改SCAN监听的端口

将SCAN监听的端口修改为3521，本地监听的端口不变，依然为1521:

[root@web1 ~]# srvctl modify scan_listener -p 3521

修改后查看监听状态：

[grid@web2 ~]$ lsnrctl status LISTENER_SCAN1

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 06-5月 -2016 01:32:52

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
LISTENER 的 STATUS
------------------------
别名                      LISTENER_SCAN1
版本                      TNSLSNR for Linux: Version 11.2.0.3.0 - Production
启动日期                  06-5月 -2016 01:31:28
正常运行时间              0 天 0 小时 1 分 23 秒
跟踪级别                  off
安全性                    ON: Local OS Authentication
SNMP                      OFF
监听程序参数文件          /u01/app/11.2.0/grid/product/db_1/network/admin/listener.ora
监听程序日志文件          /u01/app/11.2.0/grid/product/db_1/log/diag/tnslsnr/web2/listener_scan1/alert/log.xml
监听端点概要...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.15)(PORT=1521)))
服务摘要..
服务 "prod" 包含 2 个实例。
实例 "prod1", 状态 READY, 包含此服务的 1 个处理程序...
实例 "prod2", 状态 READY, 包含此服务的 1 个处理程序...
服务 "prodXDB" 包含 2 个实例。
实例 "prod1", 状态 READY, 包含此服务的 1 个处理程序...
实例 "prod2", 状态 READY, 包含此服务的 1 个处理程序...
命令执行成功
[grid@web2 ~]$

发现SCAN监听端口号还是1521，是因为没有重启监听原因，接下来重启监听：

[root@web1 ~]# srvctl stop scan_listener
[root@web1 ~]# srvctl start scan_listener

更改确认：

[root@web1 ~]# srvctl config scan_listener
SCAN 监听程序 LISTENER_SCAN1 已存在。端口: TCP:3521
[root@web1 ~]#

重启SCAN监听后再次查看状态：

[grid@web2 ~]$ lsnrctl status LISTENER_SCAN1

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 06-5月 -2016 01:34:47

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
LISTENER 的 STATUS
------------------------
别名                      LISTENER_SCAN1
版本                      TNSLSNR for Linux: Version 11.2.0.3.0 - Production
启动日期                  06-5月 -2016 01:34:42
正常运行时间              0 天 0 小时 0 分 4 秒
跟踪级别                  off
安全性                    ON: Local OS Authentication
SNMP                      OFF
监听程序参数文件          /u01/app/11.2.0/grid/product/db_1/network/admin/listener.ora
监听程序日志文件          /u01/app/11.2.0/grid/product/db_1/log/diag/tnslsnr/web2/listener_scan1/alert/log.xml
监听端点概要...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.15)(PORT=3521)))
监听程序不支持服务
命令执行成功
[grid@web2 ~]$

发现端口已经修改为3521，只是监听器上没有实例被注册进去，此时也无法通过192.168.1.15:3521/prod这种远程方式访问数据库，下面通过修改实例的remote_listener参数让实例向SCAN监听器进行注册：

[root@web1 ~]# su - oracle
[oracle@web1 ~]$ sqlplus / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on 星期五 5月 6 01:20:17 2016

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL> show parameter remote_listener

NAME                                 TYPE                              VALUE
------------------------------------ --------------------------------- ------------------------------
remote_listener                      string                            web-cluster-scan:1521
SQL>
SQL> alter system set remote_listener='web-cluster-scan:3521';

系统已更改。

SQL>

执行完成后，查看SCAN监听器，实例已经注册进去：

[grid@web2 ~]$ lsnrctl status LISTENER_SCAN1

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 06-5月 -2016 01:45:37

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

正在连接到 (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
LISTENER 的 STATUS
------------------------
别名                      LISTENER_SCAN1
版本                      TNSLSNR for Linux: Version 11.2.0.3.0 - Production
启动日期                  06-5月 -2016 01:34:42
正常运行时间              0 天 0 小时 10 分 54 秒
跟踪级别                  off
安全性                    ON: Local OS Authentication
SNMP                      OFF
监听程序参数文件          /u01/app/11.2.0/grid/product/db_1/network/admin/listener.ora
监听程序日志文件          /u01/app/11.2.0/grid/product/db_1/log/diag/tnslsnr/web2/listener_scan1/alert/log.xml
监听端点概要...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.15)(PORT=3521)))
服务摘要..
服务 "prod" 包含 2 个实例。
实例 "prod1", 状态 READY, 包含此服务的 1 个处理程序...
实例 "prod2", 状态 READY, 包含此服务的 1 个处理程序...
服务 "prodXDB" 包含 2 个实例。
实例 "prod1", 状态 READY, 包含此服务的 1 个处理程序...
实例 "prod2", 状态 READY, 包含此服务的 1 个处理程序...
命令执行成功
[grid@web2 ~]$

下面通过远程访问，可以访问成功：

C:\Users\Bill>sqlplus sys/oracle@192.168.1.15:3521/prod as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on 星期五 5月 6 01:47:27 2016

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL>

下面4个ip地址为public ip或vip，他们均无法访问，因为它们都由本地监听器进行监听，且端口仍为1521，还未改为3521：

C:\Users\Bill>sqlplus sys/oracle@192.168.1.11:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.12:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.13:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.14:3521/prod as SYSDBA

上面均报如下错误：

SQL*Plus: Release 11.2.0.4.0 Production on 星期五 5月 6 01:49:31 2016

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

ERROR:
ORA-12541: TNS: 无监听程序

修改本地监听的端口

获取当前监听器的配置信息：

[root@web1 ~]# srvctl config listener
名称: LISTENER
网络: 1, 所有者: grid
主目录: <CRS home>
端点: TCP:1521
[root@web1 ~]#

下面修改1节点的本地监听端口为3521：

[root@web1 ~]# srvctl modify listener -l LISTENER -p "TCP:3521"

修改后查看状态：

[grid@web1 ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 06-MAY-2016 02:01:43

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date                06-MAY-2016 01:15:17
Uptime                    0 days 0 hr. 46 min. 25 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/11.2.0/grid/product/db_1/network/admin/listener.ora
Listener Log File         /u01/app/grid/diag/tnslsnr/web1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.11)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.13)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "prod" has 1 instance(s).
Instance "prod1", status READY, has 1 handler(s) for this service...
Service "prodXDB" has 1 instance(s).
Instance "prod1", status READY, has 1 handler(s) for this service...
The command completed successfully
[grid@web1 ~]$

还没有修改过来，需要重启监听：

[root@web1 ~]# srvctl stop listener
[root@web1 ~]# srvctl start listener
[root@web1 ~]#

重启后再查看状态：

[grid@web1 ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 06-MAY-2016 02:02:57

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date                06-MAY-2016 02:02:30
Uptime                    0 days 0 hr. 0 min. 27 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/11.2.0/grid/product/db_1/network/admin/listener.ora
Listener Log File         /u01/app/grid/diag/tnslsnr/web1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.11)(PORT=3521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.13)(PORT=3521)))
The listener supports no services
The command completed successfully
[grid@web1 ~]$

端口已经修改为3521，但实例没有被注册进去，下面修改参数local_listener让实例的PMON进程将实例注册到监听器：

[oracle@web1 ~]$ sqlplus  / as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on 星期五 5月 6 02:03:50 2016

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

SQL> alter  system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.13)(PORT=3521))))' sid='prod1';

系统已更改。

SQL>

修改完成后马上查看监听的状态：

[grid@web1 ~]$ lsnrctl status

LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 06-MAY-2016 02:10:19

Copyright (c) 1991, 2011, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 11.2.0.3.0 - Production
Start Date                06-MAY-2016 02:02:30
Uptime                    0 days 0 hr. 7 min. 48 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/11.2.0/grid/product/db_1/network/admin/listener.ora
Listener Log File         /u01/app/grid/diag/tnslsnr/web1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.11)(PORT=3521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.13)(PORT=3521)))
Services Summary...
Service "prod" has 1 instance(s).
Instance "prod1", status READY, has 1 handler(s) for this service...
Service "prodXDB" has 1 instance(s).
Instance "prod1", status READY, has 1 handler(s) for this service...
The command completed successfully
[grid@web1 ~]$

发现实例已经注册进去。

用同样的方法将节点2的本地监听的端口也修改为3521，并将实例注册到本地监听，因步骤和上面相同，这里就不再赘述。

通过修改SCAN监听器的端口及本地监听器的端口，下面5个IP地址均能正常访问数据库：

C:\Users\Bill>sqlplus sys/oracle@192.168.1.11:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.12:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.13:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.14:3521/prod as sysdba
C:\Users\Bill>sqlplus sys/oracle@192.168.1.15:3521/prod as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on 星期五 5月 6 02:17:22 2016

Copyright (c) 1982, 2013, Oracle.  All rights reserved.

连接到:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options

HELLO
-------------------------------------------------------------------------------------
The print set file:D:\u01\app\oracle\product\11.2.0\dbhome_1\sqlplus\admin\glogin.sql

SQL>

总结

1.如果只修改SCAN监听器的端口而没修改本地监听器的端口，则SCAN IP可以使用修改后的端口访问数据库，而PUBLIC IP和VIP是无法使用新端口访问数据库的。

2.如果SCAN监听器和本地监听器的端口都修改了，则所有IP地址都可以使用新端口进行访问数据库。

Reference

How to Modify SCAN Setting or SCAN Listener Port after Installation (文档 ID 972500.1)

Changing Listener Ports On RAC/EXADATA (文档 ID 1473035.1)