11g R2 rac linstener 监听配置
- 两个节点host,ipvip ,scan的信息
- #eth0-Public IP
- 162.12.0.1 cqltjcpt1
- 162.12.0.3 cqltjcpt2
- #eth1 PRIVATE IP
- 192.12.0.1 cqltjcpt1-prvi
- 192.12.0.3 cqltjcpt2-prvi
- #VIP
- 162.12.0.5 cqltjcpt1-vip
- 162.12.0.7 cqltjcpt2-vip
- #SCAN
- 162.12.0.9 cqltjcptscan
- 11G rac中,监听文件默认配置在grid用户下
- [root@cqltjcpt2 ~]# su - grid
- [grid@cqltjcpt2 ~]$ cd $ORACLE_HOME
- [grid@cqltjcpt2 grid]$ cd network/admin/
- [grid@cqltjcpt2 admin]$ ll
- -rw-r--r-- 1 grid oinstall 189 Jan 7 21:21 endpoints_listener.ora
- -rw-r--r-- 1 grid oinstall 350 Jan 7 21:21 listener.ora
- drwxr-xr-x 2 grid oinstall 4096 Jan 7 21:04 samples
- -rw-r--r-- 1 grid oinstall 205 May 11 2011 shrept.lst
- -rw-r--r-- 1 grid oinstall 227 Jan 7 21:21 sqlnet.ora
- Oracle 11.2版本后,有一个新的监听文件endpoints_listener.ora被引进,里面的内容是节点的IP和VIP信息
- Endpoints_listener.ora 文件的作用是向后兼容11.2版本以前的数据库,DBCA建库时,需要通过获取endpoints的位置信息来配置数据库参数和tnsnames
- [grid@cqltjcpt2 admin]$ more endpoints_listener.ora
- LISTENER_CQLTJCPT2=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
- (HOST=cqltjcpt2-vip)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=162.12.0.3)(PORT=1521)(IP=FIRST))))
- 由于用hosts解析配置本例中没有配置DNS,只有一个scan listener 此时scan监听只运行在Node1上
- [grid@cqltjcpt2 admin]$ ps -ef | grep tnslsnr
- grid 9840 1 0 Jan07 ? 00:00:22 /u01/oracle/grid/bin/tnslsnr LISTENER -inherit
- grid 22674 21922 0 11:08 pts/1 00:00:00 grep tnslsnr
- [grid@cqltjcpt2 ~]$ ssh cqltjcpt1
- [grid@cqltjcpt1 ~]$ ps -ef | grep tnslsnr
- grid 8211 1 0 Jan07 ? 00:00:44 /u01/oracle/grid/bin/tnslsnr LISTENER -inherit
- grid 8380 1 0 Jan07 ? 00:00:02 /u01/oracle/grid/bin/tnslsnr LISTENER_SCAN1 -inherit
- grid 22060 22021 0 11:08 pts/1 00:00:00 grep tnslsnr
- 从ps -ef输出可以看到,无论是scan监听,还是本地监听都是运行在grid用户的oracle_home下
- NODE2本地监听指向的是vip地址162.12.0.7 ,因为rac是通过vip对外提供服务
- [oracle@cqltjcpt2 ~]$ sqlplus / as sysdba
- SQL> show parameter local_listener
- NAME TYPE VALUE
- --------------- ---------- --------------------------------------------------------------------------------
- local_listener string (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=162.12.0.7)(PORT=1521))))
- remote_listener指向的是scan监听名
- SQL> show parameter remote_listener
- NAME TYPE VALUE
- ----------------- ----------- ------------------------------
- remote_listener string cqltjcptscan:1521
- 切换至grid用户
- [root@cqltjcpt2 ~]# su - grid
- [grid@cqltjcpt2 ~]$ cd $ORACLE_HOME/network/admin
- [grid@cqltjcpt2 admin]$ ls
- endpoints_listener.ora listener.ora samples shrept.lst sqlnet.ora
- 查看监听文件内容
- [grid@cqltjcpt2 admin]$ more listener.ora
- LISTENER_SCAN1=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1))))
- LISTENER=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER))))
- ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON
- ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER_SCAN1=ON
- 最下面两行参数涉及ENABLE_GLOBAL_DYNAMIC_ENDPOINT参数,ENABLE_GLOBAL_DYNAMIC_ENDPOINT参数的作用是允许监听程序接受针对oracle 11.2版本之前未进行动态注册的连接
- 查看监听状态,可以看到cqltgsqz2实例已经运行
- [grid@cqltjcpt2 ~]$ srvctl status listener
- Listener LISTENER is enabled
- Listener LISTENER is running on node(s): cqltjcpt1,cqltjcpt2
- [grid@cqltjcpt2 ~]$ lsnrctl status listener
- LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 08-JAN-2013 10:58:30
- 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 07-JAN-2013 22:44:03
- Uptime 0 days 12 hr. 14 min. 26 sec
- Trace Level off
- Security ON: Local OS Authentication
- SNMP OFF
- Listener Parameter File /u01/oracle/grid/network/admin/listener.ora
- Listener Log File /u01/oracle/app/oracle/diag/tnslsnr/cqltjcpt2/listener/alert/log.xml
- Listening Endpoints Summary...
- (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
- (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=162.12.0.3)(PORT=1521)))
- (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=162.12.0.7)(PORT=1521)))
- Services Summary...
- Service "+ASM" has 1 instance(s).
- Instance "+ASM2", status READY, has 1 handler(s) for this service...
- Service "cqlthxqf" has 1 instance(s).
- Instance "cqlthxqf2", status READY, has 1 handler(s) for this service...
- Service "cqlthxqfXDB" has 1 instance(s).
- Instance "cqlthxqf2", status READY, has 1 handler(s) for this service...
- Service "cqlthxqz" has 1 instance(s).
- Instance "cqlthxqz2", status READY, has 1 handler(s) for this service...
- Service "cqlthxqzXDB" has 1 instance(s).
- Instance "cqlthxqz2", status READY, has 1 handler(s) for this service...
- Service "cqltjcpt" has 1 instance(s).
- Instance "cqltjcpt2", status READY, has 1 handler(s) for this service...
- Service "cqltjcptXDB" has 1 instance(s).
- Instance "cqltjcpt2", status READY, has 1 handler(s) for this service...
- The command completed successfully
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