Service-side TAF
一、 检查是否配置Service-side TAF
1、检查是否配置了Service-side TAF
[grid@dou_rac2 ~]$ srvctl config service -d racdb
[grid@dou_rac2 ~]$
--无返回结果，说明没有配置service
2、检查监听中是否注册监听了Service-side TAF 服务
[grid@dou_rac2 ~]$ lsnrctl status LISTENER_SCAN1
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 26-JUL-2013 17:34:42
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 26-JUL-2013 09:55:30
Uptime 0 days 7 hr. 39 min. 11 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/11.2.0/grid/log/diag/tnslsnr/dou_rac2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.223)(PORT=1521)))
Services Summary...
Service "racdb" has 2 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Instance "racdb2", status READY, has 1 handler(s) for this service...
Service "racdbXDB" has 1 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
The command completed successfully
--service未注册到监听中
二、添加Service-side TAF --oracle用户执行
[oracle@dou_rac2 ~]$ srvctl add service -d racdb -s racdb_taf -r racdb1,racdb2 -P BASIC -e SELECT -m BASIC -w 10 -z 1000
三、检查是否配置成功，未启动则开启服务
[oracle@dou_rac2 ~]$ srvctl config service -d racdb
服务名: racdb_taf
服务已启用
服务器池: racdb_racdb_taf
基数: 2
断开连接: 假
服务角色: PRIMARY
管理策略: AUTOMATIC
DTP 事务处理: 假
AQ HA 通知: 假
故障转移类型: SELECT
故障转移方法: BASIC
TAF 故障转移重试次数: 1000
TAF 故障转移延迟: 10
连接负载平衡目标: LONG
运行时负载平衡目标: NONE
TAF 策略规范: BASIC
首选实例: racdb1,racdb2
可用实例:
查看是否开启Service-side TAF服务
[grid@dou_rac2 ~]$ srvctl status service -d racdb
服务 racdb_taf 未运行。
检查LISTENER_SCAN1中也是否注册了Service-side TAF服务
[grid@dou_rac2 ~]$ lsnrctl status LISTENER_SCAN1
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 26-JUL-2013 17:43:01
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 26-JUL-2013 09:55:30
Uptime 0 days 7 hr. 47 min. 30 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/11.2.0/grid/log/diag/tnslsnr/dou_rac2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.223)(PORT=1521)))
Services Summary...
Service "racdb" has 2 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Instance "racdb2", status READY, has 1 handler(s) for this service...
Service "racdbXDB" has 1 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
The command completed successfully
--监听中未注册Service-side TAF服务
开启Service
[grid@dou_rac2 ~]$ srvctl start service -d racdb
查看Service运行状态
[grid@dou_rac2 ~]$ srvctl status service -d racdb
服务 racdb_taf 正在实例 racdb1 上运行
查看LISTENER_SCAN1状态
[grid@dou_rac2 ~]$ lsnrctl status LISTENER_SCAN1
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 26-JUL-2013 17:49:10
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 26-JUL-2013 09:55:30
Uptime 0 days 7 hr. 53 min. 39 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/11.2.0/grid/log/diag/tnslsnr/dou_rac2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.223)(PORT=1521)))
Services Summary...
Service "racdb" has 2 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Instance "racdb2", status READY, has 1 handler(s) for this service...
Service "racdbXDB" has 1 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Service "racdb_taf" has 1 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
The command completed successfully
-- Service racdb_taf已经注册到LISTENER_SCAN1
自动开启service，数据库启动时自动开启所有的service
[oracle@dou_rac2 admin]$ srvctl enable service -d racdb -s racdb_taf -i racdb1
[oracle@dou_rac2 admin]$ srvctl enable service -d racdb -s racdb_taf -i racdb2
--配置一个节点自动启动service即可，当然2个也可以
重启之后的service状态
[grid@dou_rac2 ~]$ srvctl status service -d racdb
服务 racdb_taf 正在实例 racdb1,racdb2上运行
[grid@dou_rac2 ~]$ lsnrctl status LISTENER_SCAN1
LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 26-JUL-2013 18:44:17
Copyright (c) 1991, 2009, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER_SCAN1)))
STATUS of the LISTENER
------------------------
Alias LISTENER_SCAN1
Version TNSLSNR for Linux: Version 11.2.0.1.0 - Production
Start Date 26-JUL-2013 18:40:03
Uptime 0 days 0 hr. 4 min. 14 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u01/app/11.2.0/grid/network/admin/listener.ora
Listener Log File /u01/app/11.2.0/grid/log/diag/tnslsnr/dou_rac2/listener_scan1/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER_SCAN1)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.1.223)(PORT=1521)))
Services Summary...
Service "racdb" has 2 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Instance "racdb2", status READY, has 1 handler(s) for this service...
Service "racdbXDB" has 2 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Instance "racdb2", status READY, has 1 handler(s) for this service...
Service "racdb_taf" has 2 instance(s).
Instance "racdb1", status READY, has 1 handler(s) for this service...
Instance "racdb2", status READY, has 1 handler(s) for this service...
The command completed successfully
四、修改客户端tnsnames.ora
客户端使用service-side TAF，需要修改一下tnsnames.ora
RACDB =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = dou_rac-scan)(PORT = 1521))
(CONNECT_DATA =
(SERVICE = DEDICATED)
(SERVICE_NAME = racdb_taf)
)
)
--racdb修改成racdb_taf服务名
Service-side TAF测试
[oracle@dou_rac2 admin]$ sqlplus xiaoyu/oracle@racdb
SQL*Plus: Release 11.2.0.1.0 Production on Fri Jul 26 17:56:45 2013
Copyright (c) 1982, 2009, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> show parameter service
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
service_names string racdb_taf