2017-05-24

Oracle归档满后如何处理

作者:开挂的柑桔 来源:大事记 我要评论(0) 浏览(249)

Oracle归档满后如何处理

ORA-00257: archiver error. Connect internal only, until freed 错误的处理方法

检查是否开归档的语句如下:

select name,log_mode from v$database;

 

1. 用sys用户登录

      sqlplus sys/pass@tt as sysdba

2. 看看archiv log所在位置

SQL> show parameter log_archive_dest;

NAME                                     TYPE        VALUE

------------------------------------ ----------- ------------------------------

log_archive_dest                   string

log_archive_dest_1               string

log_archive_dest_10             string

3. 一般VALUE为空时,可以用archive log list;检查一下归档目录和log sequence

SQL> archive log list;

Database log mode                 Archive Mode

Automatic archival                   Enabled

Archive destination                  USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence     360

Next log sequence to archive  360

Current log sequence              362

4. 检查flash recovery area的使用情况,可以看见archivelog已经很大了,达到96.62

SQL> select * from V$FLASH_RECOVERY_AREA_USAGE;

FILE_TYPE    PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES

------------ ------------------ ------------------------- ---------------

CONTROLFILE                 .13                        0               1

ONLINELOG                  2.93                        0               3

ARCHIVELOG                96.62                       0              141

BACKUPPIECE                   0                         0               0

IMAGECOPY                      0                         0               0

FLASHBACKLOG                0                         0               0

 

5. 计算flash recovery area已经占用的空间

SQL> select sum(percent_space_used)*3/100 from v$flash_recovery_area_usage;

 

SUM(PERCENT_SPACE_USED)*3/100

-----------------------------

                       2.9904

                      

6. 找到recovery目录, show parameter recover

SQL> show parameter recover;

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

db_recovery_file_dest                string           /u01/app/oracle/flash_recovery_area

db_recovery_file_dest_size        big integer   5G

recovery_parallelism                   integer         0  

7 上述结果告诉我们,归档位置用的是默认值,放在flash_recovery_area下(db_recovery_file_dest目录=/u01/app/oracle/flash_recovery_area)

[root@sha3 10.2.0]# cd $ORACLE_BASE/flash_recovery_area/tt/archivelog

转移或清除对应的归档日志, 删除一些不用的日期目录的文件,注意保留最后几个文件

 

---------------------------------------------------------------------------------------

注意:

在删除归档日志后,必须用RMAN维护控制文件,否则空间显示仍然不释放。

---------------------------------------------------------------------------------------

 

8. rman target sys/pass

[root@sha3 oracle]# rman target sys/pass

 

Recovery Manager: Release 10.2.0.4.0 - Production on Tue Jan 20 01:41:26 2009

 

Copyright (c) 1982, 2007, Oracle.  All rights reserved.

 

connected to target database: tt (DBID=4147983671)

 

 

 

9. 检查一些无用的archivelog

RMAN> crosscheck archivelog all;

 

10. 删除过期的归档

RMAN> delete expired archivelog all;

 

delete archivelog until time 'sysdate-1' ; 删除截止到前一天的所有archivelog

 

11. 再次查询,发现使用率正常,已经降到23.03

SQL> select * from V$FLASH_RECOVERY_AREA_USAGE;

 

FILE_TYPE    PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES

------------ ------------------ ------------------------- ---------------

CONTROLFILE                 .13                         0               1

ONLINELOG                  2.93                         0               3

ARCHIVELOG                23.03                         0              36

BACKUPPIECE                   0                         0               0

IMAGECOPY                     0                         0               0

FLASHBACKLOG                  0                         0               0

 

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