Flash Recovery Area空间不足导致数据库不能打开或hang住
发布时间:2020-12-15 06:46:42 所属栏目:百科 来源:网络整理
导读:ORA-16014错误解决办法? 1.问题以及解决过程? SQL select status from v$instance;? STATUS? ------------? MOUNTED? SQL alter database open;? alter database open? *? 第 1 行出现错误:? ORA-16014: 日志 2 的序列号 27 未归档,没有可用的目的地? ORA-00
ORA-16014错误解决办法? 1.问题以及解决过程? SQL> select status from v$instance;? STATUS? ------------? MOUNTED? SQL> alter database open;? alter database open? *? 第 1 行出现错误:? ORA-16014: 日志 2 的序列号 27 未归档,没有可用的目的地? ORA-00312: 联机日志 2 线程 1:? 'D:/ORACLE/PRODUCT/10.2.0/ORADATA/ORCL/REDO02.LOG'? SQL> show parameter db_recovery_file? NAME???????????????????????????????? TYPE????????VALUE? ------------------------------------ ----------- ------------------------------? db_recovery_file_dest????????????????string??????D:/oracle/product/10.2.0/flash_recovery_area? db_recovery_file_dest_size????????big integer 2G? SQL> alter system archive log current;? alter system archive log current? *? 第 1 行出现错误:? ORA-01109: 数据库未打开? SQL> alter system switch logfile;? alter system switch logfile? *? 第 1 行出现错误:? ORA-01109: 数据库未打开? SQL> shutdown immediate;? ORA-01109: 数据库未打开? 已经卸载数据库。? ORACLE 例程已经关闭。? SQL> startup? ORACLE 例程已经启动。? Total System Global Area??201326592 bytes? Fixed Size??????????????????1248092 bytes? Variable Size??????????????88081572 bytes? Database Buffers??????????109051904 bytes? Redo Buffers????????????????2945024 bytes? 数据库装载完毕。? ORA-16038: 日志 2 序列号 27 无法归档? ORA-19809: 超出了恢复文件数的限制? ORA-00312: 联机日志 2 线程 1:? 'D:/ORACLE/PRODUCT/10.2.0/ORADATA/ORCL/REDO02.LOG'? SQL> alter database open;? alter database open? *? 第 1 行出现错误:? ORA-16014: 日志 2 的序列号 27 未归档,没有可用的目的地? ORA-00312: 联机日志 2 线程 1:? 'D:/ORACLE/PRODUCT/10.2.0/ORADATA/ORCL/REDO02.LOG'? SQL> show parameter db_recovery? NAME???????????????????????????????? TYPE????????VALUE? ------------------------------------ ----------- ------------------------------? db_recovery_file_dest????????????????string??????D:/oracle/product/10.2.0/flash_recovery_area? db_recovery_file_dest_size?????????? big integer 2G? SQL> alter system set db_recovery_file_dest_size=3G scope=both;? 系统已更改。? SQL> alter database open;? 数据库已更改。? 2.反思:? (1).检查flash recovery area的使用情况:? SQL> select * from v$flash_recovery_area_usage;? FILE_TYPE????PERCENT_SPACE_USED PERCENT_SPACE_RECLAIMABLE NUMBER_OF_FILES? ------------ ------------------ ------------------------- ---------------? CONTROLFILE?????????????????? 0???????????????????????? 0?????????????? 0? ONLINELOG???????????????????? 0???????????????????????? 0?????????????? 0? ARCHIVELOG???????????????? 6.36???????????????????????? 0?????????????? 4? BACKUPPIECE???????????????? .22???????????????????????? 0?????????????? 1? IMAGECOPY???????????????? 63.68???????????????????????? 0?????????????? 5? FLASHBACKLOG????????????????.51?????????????????????? .25?????????????? 2? 已选择6行。? SQL>? (2).计算flash recovery area已经占用的空间:? SQL> select sum(percent_space_used)*3/100 from v$flash_recovery_area_usage;? SUM(PERCENT_SPACE_USED)*3/100? -----------------------------? ?????????????????????? 2.1231? 可以看到,这里已经有2.1231G使用了,这说明我们刚开始设置的db_recovery_file_dest_size=2G不足,导致online redo log无法归档,在这里,我们通过设置db_recovery_file_dest_size参数,增大了flash recovery area来解决这个问题。? (3).也可以通过删除flash recovery area中不必要的备份来释放flash recovery area空间来解决这个问题:? ??????(1). delete obsolete;? ??????(2). crosscheck backupset;? ???????????? delete expired backupset;
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