Oracle閃回區滿(ORA-16014)

一台老的測試AIX服務器，沒人理過，最近一看Oracle閃回滿了。清理了下。

Version: Oracle 10gR2 for AIX

現象:

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-16014: log 3 sequence# 157 not archived, no available destinations
ORA-00312: online log 3 thread 1:
'/opt/oracle/software/oradata/orcl/redo03.log'

報這個錯誤是因為閃回區滿了：

-- 擴大閃回區空間
SQL> alter system set db_recovery_file_dest_size=3g scope=both;

System altered.

SQL> alter database open;

Database altered.

閃回區相關信息查詢:

--查看歸檔模式
 SQL> archive log list;

--歸檔空間使用率
SQL> select * from v$flash_recovery_area_usage;

--閃回區所占用的空間
SQL> select sum(percent_space_used)*3/100 from v$flash_recovery_area_usage;

釋放空間:

--刪除備份
crosscheck backupset;
delete noprompt expired backupset;
delete obsolete;
delete noprompt expired backup;
delete noprompt expired copy;

--清掉歸檔
--清掉過期的歸檔
crosscheck archivelog all;
delete noprompt expired archivelog all;
--要還不夠，強制刪除掉指定天數前的歸檔
delete noprompt archivelog all completed before 'sysdate-7';

除了在閃回區刪文件，或擴空間的方式，還可以通過將歸檔指定到其它目錄的方式來做。

SQL> alter system set log_archive_dest_1='location=/nfsdisk/oraarc' scope=both ;

System altered.

SQL> archive log list;
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            /nfsdisk/oraarc
Oldest online log sequence     161
Next log sequence to archive   161
Current log sequence           163

設完成後，測試一下:
SQL>alter system switch logfile;
但我測試時，因為粗心，授權時沒注意，導致執行時發現被卡住了，檢查v$archive_dest，
發現LOG_ARCHIVE_DEST_1狀態為ERROR. 這個是目錄權限問題引起的。

SQL> col DESTINATION format a20
SQL> col dest_name format a20
SQL> select dest_id,dest_name,STATUS,DESTINATION from v$archive_dest;

   DEST_ID DEST_NAME            STATUS             DESTINATION
---------- -------------------- ------------------ --------------------
         1 LOG_ARCHIVE_DEST_1   ERROR              /nfsdisk/oraarc
         2 LOG_ARCHIVE_DEST_2   INACTIVE
         3 LOG_ARCHIVE_DEST_3   INACTIVE
         4 LOG_ARCHIVE_DEST_4   INACTIVE
         5 LOG_ARCHIVE_DEST_5   INACTIVE
         6 LOG_ARCHIVE_DEST_6   INACTIVE
         7 LOG_ARCHIVE_DEST_7   INACTIVE
         8 LOG_ARCHIVE_DEST_8   INACTIVE
         9 LOG_ARCHIVE_DEST_9   INACTIVE
        10 LOG_ARCHIVE_DEST_10  INACTIVE

10 rows selected.

重新授權一下目錄所屬用戶和權限:

# chown oracle:oinstall /nfsdisk/oraarc
# chmod -R 777 /nfsdisk/oraarc

此時就可以歸檔成功了。

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