archiver error

ORA-00257: archiver error. Connect internal only, until freed
此问题属于归档日志满了。

解决办法：
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                  99.9                         0               3
BACKUPPIECE                   0                         0               0
IMAGECOPY                     0                         0               0
FLASHBACKLOG                  0                         0               0

 可以看出，ARCHIVELOG日志已经达到99.9%了。要把它清除掉!

 =========  删除归档日志 =========
第一步： 直接删除 物理数据 rm
cd /home/oracle/u01/app/oracle/diag/rdbms/orcl/orcl/alert
rm -rf *

第二步：通过 rman 删除:
oracle@linux112:/opt/oracle/> rman
Recovery Manager: Release 11.1.0.7.0 - Production on Mon Sep 3 11:47:06 2012
Copyright (c) 1982, 2007, Oracle.  All rights reserved.

RMAN> connect target sys/abc123
执行如下命令：

(1) crosscheck backup;
(2) delete obsolete;
(3) delete expired backup;
(4) crosscheck archivelog all;
(5) delete expired archivelog all;
(6) host;

第二种方法 : 就是增大闪回日志文件的最大大小。如下
    alter system set DB_RECOVERY_FILE_DEST_SIZE=30g