数据库重新启动的时候，收到了ORA-19815的错误。从错误的提示来看，是由于闪回区的空间被填满导致无法成功启动。这种情形我们通常考虑的是清除归档日志，那就直接在OS层面rm了，真的是这样吗？客官，如果你有相同的情形，接下往下看......
1、故障现象
idle> startup
ORACLE instance started.
Total System Global Area 238530560 bytes
Fixed Size 1335724 bytes
Variable Size 155192916 bytes
Database Buffers 75497472 bytes
Redo Buffers 6504448 bytes
Database mounted.
ORA-03113: end-of-file on communication channel
Process ID: 3562
Session ID: 125 Serial number: 5
Fri Sep 13 16:28:15 2013
ARC3 started with pid=27, OS id=4231
Errors in file /u02/database/usbo/diag/rdbms/usbo/usbo/trace/usbo_ora_4205.trc:
ORA-19815: WARNING: db_recovery_file_dest_size of 4294967296 bytes is 100.00% used, and has 0 remaining bytes available.
************************************************************************
You have following choices to free up space from recovery area:
1. Consider changing RMAN RETENTION POLICY. If you are using Data Guard,
then consider changing RMAN ARCHIVELOG DELETION POLICY.
2. Back up files to tertiary device such as tape using RMAN
BACKUP RECOVERY AREA command.
3. Add disk space and increase db_recovery_file_dest_size parameter to
reflect the new space.
4. Delete unnecessary files using RMAN DELETE command. If an operating
system command was used to delete files, then use RMAN CROSSCHECK and
DELETE EXPIRED commands.
************************************************************************
Errors in file /u02/database/usbo/diag/rdbms/usbo/usbo/trace/usbo_ora_4205.trc:
ORA-19809: limit exceeded for recovery files
ORA-19804: cannot reclaim 41592320 bytes disk space from 4294967296 limit
ARCH: Error 19809 Creating archive log file to '/u02/database/usbo/fr_area/USBO/archivelog/2013_09_13/o1_mf_1_12_%u_.arc'
Errors in file /u02/database/usbo/diag/rdbms/usbo/usbo/trace/usbo_ora_4205.trc:
ORA-16038: log 3 sequence# 12 cannot be archived
ORA-19809: limit exceeded for recovery files
ORA-00312: online log 3 thread 1: '/u02/database/usbo/oradata/redo03.log'
USER (ospid: 4205): terminating the instance due to error 16038
System state dump is made for local instance
System State dumped to trace file /u02/database/usbo/diag/rdbms/usbo/usbo/trace/usbo_diag_4162.trc
Fri Sep 13 16:28:16 2013
Trace dumping is performing id=[cdmp_20130913162815]
Instance terminated by USER, pid = 4205
运行环境:
[oracle@linux1 ~]$ cat /etc/issue
Enterprise Linux Enterprise Linux Server release 5.5 (Carthage)
Kernel \r on an \m
[oracle@linux1 ~]$ sqlplus -V
SQL*Plus: Release 11.2.0.1.0 Production
2、故障分析
#从上面的错误消息大致可以判断闪回区空间不够用了"100.00% used"
#下面我们来看看错误的解决方案是是什么
[oracle@linux1 usbo]$ oerr ora 19815
19815, 00000, "WARNING: %s of %s bytes is %s%% used, and has %s remaining bytes available."
// *Cause: DB_RECOVERY_FILE_DEST is running out of disk space.
// *Action: One of the following:
// 1. Add disk space and increase DB_RECOVERY_FILE_DEST_SIZE.
// 2. Backup files to tertiary device using RMAN.
// 3. Consider changing RMAN retention policy.
// 4. Consider changing RMAN archived log deletion policy.
// 5. Delete files from recovery area using RMAN.
[oracle@linux1 usbo]$ oerr ora 19809
19809, 00000, "limit exceeded for recovery files"
//*Cause: The limit for recovery files specified by the
// DB_RECOVERY_FILE_DEST_SIZE was exceeded.
// *Action: There are five possible solutions:
// 1) Take frequent backup of recovery area using RMAN.
// 2) Consider changing RMAN retention policy.
// 3) Consider changing RMAN archived log deletion policy.
// 4) Add disk space and increase DB_RECOVERY_FILE_DEST_SIZE.
// 5) Delete files from recovery area using RMAN.
#上面两个ORA错误的解决方案基本上相同，修改RMAN保留策略，使用RMAN删除归档日志及归档文件等，也可以通过增加调整闪回区的大小
3、故障解决
#我们来看看当前数据库的归档日志的大小
[oracle@linux1 archivelog]$ du -sh *
202M 2013_09_09
39M 2013_09_10
4.0K 2013_09_11
4.0K 2013_09_12
[oracle@linux1 archivelog]$ cd /u02/database/usbo
#下面查看当前数据库对应闪回区的大小，仅仅242M
[oracle@linux1 usbo]$ du -sh *
1.1G adump
150M diag
242M fr_area
4.7G oradata
#下面我们尝试直接在OS层面删除归档日志
[oracle@linux1 usbo]$ cd /u02/database/usbo/fr_area/USBO/archivelog
[oracle@linux1 archivelog]$ rm -rf *
#删除完毕后再次启动依旧收到上面的错误提示，所以我们必须根据Oracle给出的解决方案来实施
#也就是说Oracle根本认为其闪回区的空间根本没有得到释放
[oracle@linux1 ~]$ sqlplus / as sysdba
idle> startup nomount;
idle> show parameter db_reco
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_recovery_file_dest string /u02/database/usbo/fr_area
db_recovery_file_dest_size big integer 4G
idle> alter system set db_recovery_file_dest_size=5g;
idle> alter database mount;
idle> alter database open;
# Author : Leshami
# Blog : http://blog.csdn.net/leshami
idle> SET LINES 100
idle> COL name FORMAT a60
idle> SELECT name, FLOOR (space_limit / 1024 / 1024) "Size MB", CEIL (space_used / idle> 024 / 1024) "Used MB"
2 FROM v$recovery_file_dest
3 ORDER BY name
4 /
NAME Size MB Used MB
------------------------------------------------------------ ---------- ----------
/u02/database/usbo/fr_area 5120 4197
#从上面的查询可知，Oracle认为闪回区已经达到了4197MB，尽管OS层面已经删除了文件，但Oracle并不知道，因此从RMAN来着手
[oracle@linux1 ~]$ rman target /
connected to target database: USBO (DBID=3454448158)
RMAN> crosscheck archivelog all;
RMAN> delete noprompt archivelog all;
#如果你的archive log 不能够删除，可以考虑Oracle给出的解决方案，比如删除冗余的数据备份，修改保留策略等等
#再次在SQL*Plus查询，其使用空间已经只有2MB
#关于归档日志的清除，可以参考: Oracle RMAN 清除归档日志idle > SELECT name, FLOOR (space_limit / 1024 / 1024) "Size MB", CEIL (space_used / 1024 / 1024) "Used MB"
2 FROM v$recovery_file_dest
3 ORDER BY name
4 /
NAME Size MB Used MB
------------------------------------------------------------ ---------- ----------
/u02/database/usbo/fr_area 5120 2
更多参考
有关Oracle RAC请参考
使用crs_setperm修改RAC资源的所有者及权限 使用crs_profile管理RAC资源配置文件 RAC 数据库的启动与关闭 再说 Oracle RAC services Services in Oracle Database 10g Migrate datbase from single instance to Oracle RAC Oracle RAC 连接到指定实例 Oracle RAC 负载均衡测试(结合服务器端与客户端) Oracle RAC 服务器端连接负载均衡(Load Balance) Oracle RAC 客户端连接负载均衡(Load Balance) ORACLE RAC 下非缺省端口监听配置(listener.ora tnsnames.ora)
ORACLE RAC 监听配置 (listener.ora tnsnames.ora) 配置 RAC 负载均衡与故障转移 CRS-1006 , CRS-0215 故障一例
基于Linux (RHEL 5.5) 安装Oracle 10g RAC
使用 runcluvfy 校验Oracle RAC安装环境
有关Oracle 网络配置相关基础以及概念性的问题请参考：
配置非默认端口的动态服务注册
配置sqlnet.ora限制IP访问Oracle Oracle 监听器日志配置与管理
设置 Oracle 监听器密码(LISTENER) 配置ORACLE 客户端连接到数据库
有关基于用户管理的备份和备份恢复的概念请参考
Oracle 冷备份 Oracle 热备份 Oracle 备份恢复概念 Oracle 实例恢复 Oracle 基于用户管理恢复的处理 SYSTEM 表空间管理及备份恢复 SYSAUX表空间管理及恢复 Oracle 基于备份控制文件的恢复(unsing backup controlfile)
有关RMAN的备份恢复与管理请参考
RMAN 概述及其体系结构 RMAN 配置、监控与管理 RMAN 备份详解 RMAN 还原与恢复 RMAN catalog 的创建和使用 基于catalog 创建RMAN存储脚本 基于catalog 的RMAN 备份与恢复 RMAN 备份路径困惑 使用RMAN实现异机备份恢复(WIN平台) 使用RMAN迁移文件系统数据库到ASM linux 下RMAN备份shell脚本 使用RMAN迁移数据库到异机
有关ORACLE体系结构请参考
Oracle 表空间与数据文件 Oracle 密码文件 Oracle 参数文件 Oracle 联机重做日志文件(ONLINE LOG FILE) Oracle 控制文件(CONTROLFILE) Oracle 归档日志 Oracle 回滚(ROLLBACK)和撤销(UNDO) Oracle 数据库实例启动关闭过程 Oracle 10g SGA 的自动化管理 Oracle 实例和Oracle数据库(Oracle体系结构)