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

Cause: The archiver process received an error while trying to archive a redo log. If the problem is not resolved soon, the database will stop executing transactions. The most likely cause of this message is the destination device is out of space to store the redo log file.

Action: Check archiver trace file for a detailed description of the problem. Also verify that the device specified in the initialization parameter ARCHIVE_LOG_DEST is set up properly for archiving.alter database flashback on

There is two possible way to solution.
1. without increasing DB_RECOVERY_FILE_DEST_SIZE.
2. by increasing DB_RECOVERY_FILE_DEST_SIZE.

Without increasing DB_RECOVERY_FILE_DEST_SIZE.
1. Check whether the database is in archive log mode and automatic archiving is enabled.

 SQL> archive log list;
 Database log mode              Archive Mode
 Automatic archival             Enabled
 Archive destination            USE_DB_RECOVERY_FILE_DEST
 Oldest online log sequence     29
 Next log sequence to archive   31
 Current log sequence           31

2. If archive destination is defined by USE_DB_RECOVERY_FILE_DEST, find the archive destination by:

SQL> show parameter db_recovery_file_dest;
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest                string      C:\oracle\product\10.2.0/flash_recovery_area
db_recovery_file_dest_size           big integer 2G

Check what the value for db_recovery_file_dest_size.

3. Find the space used in flash recovery area by using following SQL:

col ROUND(SPACE_LIMIT/1048576) heading “Space Allocated (MB)” format 999999
col round(space_used/1048576) heading “Space Used (MB)” format 99999
col name format a40
select name, round(space_limit/1048576) As space_limit,round(space_used/1048576) As space_used
from v$RECOVERY_FILE_DEST;

4. if SPACE_USED is equal to SPACE_LIMIT of db_recovery_file_dest, move the archive logs to different destination.

5. Archive all the log files

SQL> alter system archive log all;

6. Just switch the logs to verify

 SQL> alter system switch logfile;

7. DB_RECOVERY_FILE_DEST_SIZE is to delete (archive log) files from DB_RECOVERY_FILE_DEST if you are sure you have backups and the archived logs are no longer necessary.

 
 $rman target /
 RMAN>delete archivelog until time 'SYSDATE-1';
 or,
 RMAN>delete archivelog all;

By increasing DB_RECOVERY_FILE_DEST_SIZE.
1. See the path of flash recovery area.

 SQL> show parameter db_recovery_file_dest;

2. Increase the Flash Recovery Area

SQL> ALTER SYSTEM SET db_recovery_file_dest_size='10G' SCOPE=BOTH;
Sytem Altered.