轉帖：原文地址http://blog.csdn.net/panys/article/details/3838846
archive log 日志已滿
ORA-00257: archiver error. Connect internal only, until freed 錯誤的處理方法
1. 用sys用戶登錄
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為空時，可以用archive log list;檢查一下歸檔目錄和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. 檢查flash recovery area的使用情況,可以看見archivelog已經很大了，達到96.62
SQL> select * from V$FLASH_RECOVERY_AREA_USAGE;
FILE_TYPE PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES
------------ ------------------ ------------------------- ---------------
CONTROLFILE .13 0 1
ONLINELOG 2.93 0 3
ARCHIVELOG 96.62 0 141
BACKUPPIECE 0 0 0
IMAGECOPY 0 0 0
FLASHBACKLOG 0 0 0
5. 計算flash recovery area已經占用的空間
SQL> select sum(percent_space_used)*3/100 from v$flash_recovery_area_usage;
SUM(PERCENT_SPACE_USED)*3/100
-----------------------------
2.9904
6. 找到recovery目錄, 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 上述結果告訴我們，歸檔位置用的是默認值，放在flash_recovery_area下(db_recovery_file_dest目錄=/u01/app/oracle/flash_recovery_area)
[root@sha3 10.2.0]# echo $ORACLE_BASE
/u01/app/oracle
[root@sha3 10.2.0]# cd $ORACLE_BASE/flash_recovery_area/tt/archivelog
轉移或清除對應的歸檔日志, 刪除一些不用的日期目錄的文件，注意保留最後幾個文件（比如360以後的）
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注意:
在刪除歸檔日志後，必須用RMAN維護控制文件，否則空間顯示仍然不釋放。
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8. rman target sys/pass
[root@sha3 oracle]# rman target sys/pass
Recovery Manager: Release 10.2.0.4.0 - Production on Tue Jan 20 01:41:26 2009
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database: tt (DBID=4147983671)
9. 檢查一些無用的archivelog
RMAN> crosscheck archivelog all;
10. 刪除過期的歸檔
RMAN> delete expired archivelog all;
delete archivelog until time 'sysdate-1' ; 刪除截止到前一天的所有archivelog
11. 再次查詢，發現使用率正常，已經降到23.03
SQL> select * from V$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:
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如果archive log模式下不能正常startup,則先恢復成noarchive log,startup成功後，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;
如果還不行，則刪除一些archlog log
SQL> select group#,sequence# from v$log;
GROUP# SEQUENCE#
---------- ----------
1 62
3 64
2 63
原來是日志組一的一個日志不能歸檔
SQL> alter database clear unarchived logfile group 1;
alter database open;
最後，也可以指定位置Arch Log, 請按照如下配置
select name from v$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;
