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这篇文章主要介绍“oracle中怎么配置及测试TAF”，在日常操作中，相信很多人在oracle中怎么配置及测试TAF问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”oracle中怎么配置及测试TAF”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！
一、添加services_taf：
[root@ora19crac1 ~]# su - oracle Last login: Tue Mar 3 18:06:26 CST 2020 on pts/1 [oracle@ora19crac1 ~]$ srvctl add service -d woo -s server_taf -r "woo1,woo2" -P BASIC
二、启动server_taf
[oracle@ora19crac1 ~]$ srvctl start service -d woo -s server_taf
三、检查server_taf 运行状态
[oracle@ora19crac1 ~]$ srvctl config service -d woo Service name: server_taf Server pool: Cardinality: 2 Service role: PRIMARY Management policy: AUTOMATIC DTP transaction: false AQ HA notifications: false Global: false Commit Outcome: false Failover type: Failover method: Failover retries: Failover delay: Failover restore: NONE Connection Load Balancing Goal: LONG Runtime Load Balancing Goal: NONE TAF policy specification: BASIC Edition: Pluggable database name: Hub service: Maximum lag time: ANY SQL Translation Profile: Retention: 86400 seconds Replay Initiation Time: 300 seconds Drain timeout: Stop option: Session State Consistency: DYNAMIC GSM Flags: 0 Service is enabled Preferred instances: woo1,woo2 Available instances: CSS critical: no Service uses Java: false
四、检查刚才创建的服务
SQL> select name,service_id from dba_services where name ='server_taf'; NAME SERVICE_ID --------------- ---------- server_taf 3
五、检查服务配置
SQL> col name format a15 SQL> col failover_method format a11 heading 'METHOD' SQL> col failover_type format a10 heading 'TYPE' SQL> col failover_retries format 9999999 heading 'RETRIES' SQL> col goal format a10 SQL> col clb_goal format a8 SQL> col AQ_HA_NOTIFICATIONS format a5 heading 'AQNOT' SQL> select name, failover_method, failover_type, failover_retries,goal, clb_goal,aq_ha_notifications 2 from dba_services where service_id = 3; NAME METHOD TYPE RETRIES GOAL CLB_GOAL AQNOT --------------- ----------- ---------- -------- ---------- -------- ----- server_taf 0 NONE LONG NO
六、修改故障转移参数策略
[oracle@ora19crac1 ~]$ srvctl modify service -d woo -s server_taf -m BASIC -e SELECT -q TRUE -j LONG [oracle@ora19crac1 ~]$ srvctl config service -d woo Service name: server_taf Server pool: Cardinality: 2 Service role: PRIMARY Management policy: AUTOMATIC DTP transaction: false AQ HA notifications: true Global: false Commit Outcome: false Failover type: SELECT Failover method: BASIC Failover retries: Failover delay: Failover restore: NONE Connection Load Balancing Goal: LONG Runtime Load Balancing Goal: NONE TAF policy specification: BASIC Edition: Pluggable database name: Hub service: Maximum lag time: ANY SQL Translation Profile: Retention: 86400 seconds Replay Initiation Time: 300 seconds Drain timeout: Stop option: Session State Consistency: DYNAMIC GSM Flags: 0 Service is enabled Preferred instances: woo1,woo2 Available instances: CSS critical: no Service uses Java: false
七、再次检查服务，我们可以看到值都有了
SQL> col name format a15 SQL> col failover_method format a11 heading 'METHOD' SQL> col failover_type format a10 heading 'TYPE' SQL> col failover_retries format 9999999 heading 'RETRIES' SQL> col goal format a10 SQL> col clb_goal format a8 SQL> col AQ_HA_NOTIFICATIONS format a5 heading 'AQNOT' SQL> select name, failover_method, failover_type, failover_retries,goal, clb_goal,aq_ha_notifications 2 from dba_services where service_id = 3; NAME METHOD TYPE RETRIES GOAL CLB_GOAL AQNOT --------------- ----------- ---------- -------- ---------- -------- ----- server_taf BASIC SELECT 0 NONE LONG YES
八、检查服务是否有注册到监听
[oracle@ora19crac1 ~]$ lsnrctl services LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 19-MAR-2020 16:58:22 Copyright (c) 1991, 2019, Oracle. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521)) Services Summary... …… Service "server_taf" has 1 instance(s). Instance "woo1", status READY, has 1 handler(s) for this service... Handler(s): "DEDICATED" established:0 refused:0 state:ready LOCAL SERVER Service "woo" has 1 instance(s). Instance "woo1", status READY, has 1 handler(s) for this service... Handler(s): "DEDICATED" established:0 refused:0 state:ready LOCAL SERVER …… The command completed successfully
十、测试
SQL> col host_name format a11; SQL> select instance_name,host_name from v$instance; INSTANCE_NAME HOST_NAME ---------------- ----------- woo2 ora19crac2
十一、新开一个窗口关闭这个实例
SQL> shut abort ORACLE instance shut down.
十二、查询可以正常进行，但是会有短暂的锁住现象
SQL> col host_name format a11; SQL> select instance_name,host_name from v$instance; INSTANCE_NAME HOST_NAME ---------------- ----------- woo2 ora19crac2
到此，关于“oracle中怎么配置及测试TAF”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注云搜网网站，小编会继续努力为大家带来更多实用的文章！