ORA-38852: cannot mark the current instance (redo thread) as disabled
Cause: The open resetlogs or standby activation operation failed because it must use a different instance (redo thread) than the current instance (redo thread) to open the database.
Action: Shut down this instance and start up using a different instance name or redo thread number and retry.
ORA-38852是一个错误消息,它表明你当前正在尝试停用一个redo线程,但是它不能正确完成操作。
1.确保你不会在当前实例上创建另一个Redo线程,
2.确保你当前也不会更改现有redolog组中大小。
3.如果你确实需要更改,请考虑在当前实例上启动另一个实例,然后使用alter system文件命令去更改现有的redolog组。