场景:备库只能接收归档日志,不能实时应用redo log,如果主端日志不切换,备端一直会有adg延迟
后台日志:
RFS[1]: Assigned to RFS process 5351RFS[1]: No standby redo logfiles available for thread 1RFS[2]:...
1.检查主库的状态:SQL> SELECT SWITCHOVER_STATUS FROM V$DATABASE;SWITCHOVER_STATUS--------------------TO STANDBY2.将主库设置为standby role alter database commit to switchover to physical standb...