日志不得应用情况切换强制standby改变状态为primary

日志不得应用情况切换备库为主库

备库运行如下：
alter database recover managed standby database disconnect from session;
alter database commit to switchover to primary

日志反应如下：
Maximum wait for role transition is 15 minutes.
2016-09-07 12:57:20.653000 +08:00
Switchover: Media recovery is still active
Database not available for switchover
End-Of-REDO archived log file has not been recovered
Database not available for switchover
End-Of-REDO archived log file has not been recovered
2016-09-07 12:57:22.681000 +08:00
Database not available for switchover
End-Of-REDO archived log file has not been recovered
Database not available for switchover
End-Of-REDO archived log file has not been recovered

下面将STANDBY数据库切换为PRIMARY数据库：
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH;
或
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE FINISH FORCE;

SELECT DATABASE_ROLE FROM V$DATABASE;
　　DATABASE_ROLE
　　----------------
　　PHYSICAL STANDBY

　 ALTER DATABASE COMMIT TO SWITCHOVER TO PRIMARY;

这样备库可切换成primary 了

https://blog.csdn.net/u010719917/article/details/52458546

巴特西

日志不得应用情况切换强制standby改变状态为primary

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