连接数据库时提示归档器失败 ORA-00257: archiver error

（1）问题现象

SQL> conn hr/hr ERROR: ORA-00257: archiver error. Connectinternal only, until freed. Warning: You are no longer connected toORACLE.

（2）问题分析

在oracle 10g后，若flashback开启，后台归档程序进行(ARCn)将会自动在闪回恢复区中创建每个归档重做日志的一个副本，而flashback区域有大小限制：

SQL> show parameter recovery NAME TYPE VALUE ----------------------------------------------- ------------------------------ db_recovery_file_dest string /opt/oracle/flash_recovery_area db_recovery_file_dest_size big integer 3882M recovery_parallelism integer 0 当falshback空间已满，则连接数据库失败。

（3）问题解决

l 删除部分归档日志

l 增加falshback的空间限制

SQL> alter system set DB_RECOVERY_FILE_DEST_SIZE=20g; System altered. （4）监控flashback

l 查看闪回恢复区的相关信息

SQL> select * from v$recovery_file_dest; NAME SPACE_LIMITSPACE_USED SPACE_RECLAIMABLE NUMBER_OF_FILES --------------------------------------------------- ---------- ----------------- --------------- /opt/oracle/flash_recovery_area 2.1475E+10 4190778368 0 95

l 查看flash area的使用率

SQL> select * from v$flash_recovery_area_usage; FILE_TYPE PERCENT_SPACE_USEDPERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES -------------------- ------------------------------------------- --------------- CONTROL FILE 0 0 0 REDO LOG 0 0 0 ARCHIVED LOG 19.51 0 95 BACKUP PIECE 0 0 0 IMAGE COPY 0 0 0 FLASHBACK LOG 0 0 0 FOREIGN ARCHIVED LOG 0 0 0 7 rows selected.

其它内容请参考  

oracle之Flash Recovery Area全面介绍 

http://blog.csdn.net/jediael_lu/article/details/8854477

 

转载于:https://www.cnblogs.com/jinhong-lu/archive/2013/04/29/4559545.html