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1 创建service
用oracle 用户创建
[oracle@rac1 ~]$ srvctl add service -d leo -s leo_taf -r "leo1" -a "leo2" -P basic -e select -m basic -w 5 -z 1802 启动 server_taf服务
[oracle@rac1 ~]$ srvctl start service -d leo -s leo_taf3 检查service 运行情况
--服务管理命令
#srvctl enable/disable service -d database-name -s service-name -i instance-name
#srvctl start service -d
4 确认service ID
SQL> select name,service_id from dba_services where name = 'leo_taf';
NAME SERVICE_ID
--------------- ----------
leo_taf 35 确认参数修改
col name format a15
col failover_method format a11 heading 'METHOD'
col failover_type format a10 heading 'TYPE'
col failover_retries format 9999999 heading 'RETRIES'
col goal format a10
col clb_goal format a8
col AQ_HA_NOTIFICATIONS format a5 heading 'AQNOT'
select name, failover_method, failover_type, failover_retries,goal, clb_goal,aq_ha_notifications from dba_services where service_id=3;
NAME METHOD TYPE RETRIES GOAL CLB_GOAL AQNOT
--------------- ----------- ---------- -------- ---------- -------- -----
leo_taf BASIC SELECT 180 NONE LONG NO6 检查service 注册情况
[oracle@rac1 ~]$ lsnrctl services
LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 15-MAY-2017 10:48:25
Copyright (c) 1991, 2013, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=rac1)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
Service "leo" has 2 instance(s).
Instance "leo1", status READY, has 2 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
LOCAL SERVER
"DEDICATED" established:0 refused:0 state:ready
REMOTE SERVER
(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.61)(PORT=1521))
Instance "leo2", status READY, has 1 handler(s) for this service...
Handler(s):
"DEDICATED" established:0 refused:0 state:ready
REMOTE SERVER
(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.63)(PORT=1521))
Service "leoXDB" has 2 instance(s).
Instance "leo1", status READY, has 1 handler(s) for this service...
Handler(s):
"D000" established:0 refused:0 current:0 max:1022 state:ready
DISPATCHER
(ADDRESS=(PROTOCOL=tcp)(HOST=rac1)(PORT=48877)) Instance "leo2", status READY, has 1 handler(s) for this service... Handler(s): "D000" established:0 refused:0 current:0 max:1022 state:ready DISPATCHER
(ADDRESS=(PROTOCOL=tcp)(HOST=rac2)(PORT=20352)) Service "leo_taf" has 1 instance(s). Instance "leo1", status READY, has 2 handler(s) for this service... Handler(s): "DEDICATED" established:0 refused:0 state:ready LOCAL SERVER "DEDICATED" established:0 refused:0 state:ready REMOTE SERVER (ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.61)(PORT=1521)) The command completed successfully
7 配置查看service 参数：service_names
alter system set service_names='leo,leo_taf';
SQL> show parameter service;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
service_names string leo,leo_taf8 要配置remote_listener 参数
在tnsnames.ora
目录：/u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
添加一下内容
TEST=
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.61)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.63)(PORT = 1521))
)
)
SQL> show parameter listener;
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
listener_networks string
local_listener string (ADDRESS=(PROTOCOL=TCP)(HOST=
192.168.1.61)(PORT=1521))
remote_listener string rac-scan:1521
SQL> alter system set remote_listener='TEST';
System altered.
SQL> show parameter listener
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
listener_networks string
local_listener string (ADDRESS=(PROTOCOL=TCP)(HOST=
192.168.1.61)(PORT=1521))
remote_listener string TEST9 在客户端TNS 配置
rac=
(DESCRIPTION =
(LOAD_BALANCE = yes)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.61)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.63)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME =leo_taf)
)
)10 测试
服务器执行
SQL> create user leo identified by leo;
User created.
SQL> grant connect,resource to leo;
Grant succeeded.
SQL> grant dba to leo;
Grant succeeded.
Windows 客户端执行
SQL> conn leo/leo@rac
已连接。
SQL> select sid from v$mystat where rownum=1;
SID
----------
41
SQL> select failover_type,failover_method,failed_over from v$session where sid=41;
FAILOVER_TYPE FAILOVER_M FAI
------------- ---------- ---
SELECT BASIC NO
注意这里最开始是为NO的。
当把这里对应的实例关闭之后，在查看，就会变成YES.
注意：要用shutdown abort，不用用srvctl 关闭。
并且更换session id。
Windows 客户端执行 当前会话
SQL> show parameter instance_name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
instance_name string leo1
服务器节点1
SQL> shutdown abort
ORACLE instance shut down.
Windows 客户端执行 在同一个会话执行测试，不需要切换窗口
SQL> show parameter instance_name
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
instance_name string leo2
SQL> select sid from v$mystat where rownum=1;
SID
----------
60
SQL> select failover_type,failover_method,failed_over from v$session where sid=60;
FAILOVER_TYPE FAILOVER_M FAI
------------- ---------- ---
SELECT BASIC YES注意事项：
1). 通过远端去连
2). 不要正常关闭db
3). 不要使用系统用户
sys,system 这里切记 测试是用非系统用户测试，否则即使配置正确，也无法达到测试结果，
我用sys 测试结果怎么就是不对，系统用户登录之后发现执行结果都是none 很诧异
SQL> select failover_type,failover_method,failed_over from v$session where sid=47;
FAILOVER_TYPE FAILOVER_M FAI
------------- ---------- ---
NONE NONE NO
发现原来不是非系统用户登录查询有结果
SQL> select failover_type,failover_method,failed_over from v$session where sid=41;
FAILOVER_TYPE FAILOVER_M FAI
------------- ---------- ---
SELECT BASIC NO
4). 一定要配置remote_listener 参数