Oracle Solution for Error ora-00392

ORA-00392: log string of thread string is being cleared, operation not allowed

What triggered the Error:

An operation encountered this online log in the middle of being cleared. The command that began the clearing may have terminated without completing the clearing.

What should we do to fix it:

If the clear command is still executing then wait for its completion. If it terminated then reissue the clear command, or drop the log.