ORA-00257: archiver error. Connect internal only, until freed Processing

1. Query

SQL> select * from V $ flash_recovery_area_usage;

File_type percent_space_used percent_space_reclaimable number_of_files
----------------------------------------------------------------------
Controlfile 0 0 0
Onlinelog 0 0 0
Archivelog 100 0 907
Backuppiece 0 0 0
Imagecopy 0 0 0
Flashbacklog 0.09 0.07 5

The archived log is full.

2. Show parameter recover;

Find the archive log directory and transfer or clear the corresponding archive log

3. RMAN targer sys/Oracle

4. RMAN> crosscheck archivelog all;

5. RMAN> Delete expired archivelog all; Delete expired Archives

6. query v $ flash_recover_area_usage and check whether the usage is normal.

Then log on to the system and restore the system to normal.

Note that, after deleting the archived log, you must use RMAN to maintain the control file. Otherwise, the space will not be released.