archive log 日志已满

方法/步骤

1

SecureCRT登录服务器，切换用户oracle,连接oracle

[root@userbeta~]#

su - oracle

[oracle@userbeta~]$

sqlplus /nolog

SQL>

connect /as sysdba

2

检查flash

recovery area的使用情况,可以看见archivelog已经很大了，达到99.94

SQL>

select * from V$FLASH_RECOVERY_AREA_USAGE;

3

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;

4

修改FLASH_RECOVERY_AREA的空间修改为6GB，修改前确认磁盘有足够空间

SQL>

ALTER SYSTEM SET DB_RECOVERY_FILE_DEST_SIZE=8g;

5

现在来清理一下archivelog归档日志，生产环境建议备份

查询日志目录位置

show

parameter recover;

删除归档日志,USERDB是数据库实例名

cd

/u01/app/oracle/flash_recovery_area/USERDB/archivelog

使用root帐户删除该目录下的文件或者备份其它地方

6

使用rman

操作,内容太多，只做部分截图

[oracle@userbeta archivelog]$

rman

RMAN>

connect target sys/sys_passwd

crosscheck

backup;

delete

obsolete;

delete

expired backup;

crosscheck

archivelog all;

delete

expired archivelog all;

//此步会有提示，输入

YES 回车

host;   //退出rman

7

确认是否操作成功

#  sqlplus /nolog

SQL>  connect /as sysdba

SQL>

select * from V$FLASH_RECOVERY_AREA_USAGE;

8

删除完成，重新连接数据库

END

ORA-00257:

archiver error. Connect internal only, until freed 错误的处理方法

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]# echo $ORACLE_BASE

/u01/app/oracle

[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(比如360以后的)---------------------------------------------------------------------------------------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

其它有用的Command:

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

如果archive log模式下不能正常startup,则先恢复成noarchive log,startup成功后，再shutdown;

shutdown immediate;

startup mount;

alter database noarchivelog;

alter database open;

shutdown immediate;

再次startup以archive log模式

shutdown immediate;

startup mount;

show parameter log_archive_dest;

alter database archivelog;

archive log list;

alter database open;

如果还不行，则删除一些archlog log

SQL> select group#,sequence# from v$log;

GROUP# SEQUENCE#

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

1 62

3 64

2 63

原来是日志组一的一个日志不能归档

SQL> alter database clear unarchived logfile group 1;

alter database open;

最后，也可以指定位置Arch Log, 请按照如下配置

select name from v$datafile;

alter system set log_archive_dest='/opt/app/oracle/oradata/usagedb/arch' scope=spfile

或者修改大小

SQL> alter system set db_recovery_file_dest_size=3G scope=both;