archive log 日志已满ORA-00257: archiver error. Connect internal only, until freed 错误的处理方法
archive log 日志已满
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;

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