07 oracle 归档模式 inactive/current redo log损坏修复--以及错误ORA-00600: internal error code, arguments: [2663], [0], [9710724], [0], [9711142], [], [], [], [], [], [], []
--环境：
SQL*Plus: Release 11.2.0.4.0 Production
CentOS release 6.5 (Final)
单实例/归档模式
1 Inactive redo log丢失或损坏的恢复
SYS@ orcl >col member forma a50; SYS@ orcl >select * from v$logfile; GROUP# STATUS TYPE MEMBER IS_ ---------- ------- ------- -------------------------------------------------- --- 2 ONLINE /u01/app/oracle/oradata/orcl/redo02.log NO 1 ONLINE /u01/app/oracle/oradata/orcl/redo01.log NO 3 ONLINE /u01/app/oracle/oradata/orcl/redo03.log NO 1 ONLINE /u01/app/oracle/oradata/orcl/redo11.log NO SYS@ orcl >select *from v$log; GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME ---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ --------- 1 1 289 52428800 512 2 NO CURRENT 9672831 04-JUN-19 2.8147E+14 2 1 287 52428800 512 1 YES INACTIVE 9656990 04-JUN-19 9658951 04-JUN-19 3 1 288 52428800 512 1 YES INACTIVE 9658951 04-JUN-19 9672831 04-JUN-19
使用dd命令破坏处于inactive状态的 redo log group 3
[oracle@DSI admin]$ dd if=/dev/null of=/u01/app/oracle/oradata/orcl/redo03.log bs=512 count=20 0+0 records in 0+0 records out 0 bytes (0 B) copied, 9.6715e-05 s, 0.0 kB/s
关闭重新启动报错
SYS@ orcl >shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SYS@ orcl >startup ORACLE instance started. Total System Global Area 784998400 bytes Fixed Size 2257352 bytes Variable Size 478154296 bytes Database Buffers 297795584 bytes Redo Buffers 6791168 bytes Database mounted. ORA-03113: end-of-file on communication channel Process ID: 8282 Session ID: 125 Serial number: 5
退出，启动到mount状态
SYS@ orcl >exit [oracle@DSI ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Wed Jun 5 10:16:28 2019 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to an idle instance. SQL> startup mount; ORACLE instance started. Total System Global Area 784998400 bytes Fixed Size 2257352 bytes Variable Size 478154296 bytes Database Buffers 297795584 bytes Redo Buffers 6791168 bytes Database mounted. SQL> select * from v$diag_info;
查看alert log
[oracle@DSI admin]$ cd /u01/app/oracle/diag/rdbms/orcl/orcl/trace/ [oracle@DSI trace]$ tail -n 100 alert_orcl.log Additional information: 1 Errors in file /u01/app/oracle/diag/rdbms/orcl/orcl/trace/orcl_ora_8282.trc: ORA-00313: open failed for members of log group 1 of thread ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/orcl/redo03.log'
查看日志组的状态，确认是处于inactive的
SYS@ orcl >set linesize 1000 SYS@ orcl >select * from v$log; GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME ---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ --------- 1 1 289 52428800 512 2 NO CURRENT 9672831 04-JUN-19 2.8147E+14 3 1 288 52428800 512 1 YES INACTIVE 9658951 04-JUN-19 9672831 04-JUN-19 2 1 287 52428800 512 1 YES INACTIVE 9656990 04-JUN-19 9658951 04-JUN-19
进行修复
SYS@ orcl >alter database clear logfile group 3; Database altered. SYS@ orcl >alter database drop logfile group 3; Database altered. SYS@ orcl >alter database add logfile group 3 ('/u01/app/oracle/oradata/orcl/redo03.log') size 50m; alter database add logfile group 3 ('/u01/app/oracle/oradata/orcl/redo03.log') size 50m * ERROR at line 1: ORA-00301: error in adding log file '/u01/app/oracle/oradata/orcl/redo03.log' - file cannot be created ORA-27038: created file already exists Additional information: 1
[oracle@DSI trace]$ rm /u01/app/oracle/oradata/orcl/redo03.log SYS@ orcl >alter database add logfile group 3 ('/u01/app/oracle/oradata/orcl/redo03.log') size 50m; Database altered. SYS@ orcl >alter database open; Database altered. SYS@ orcl >select * from test.t1; [oracle@DSI trace]$ tail -n 100 alert_orcl.log
2 Current redo log丢失或损坏的恢复
模式数据测试
create table t6 (id int,name varchar2(100)); begin for i in 1 .. 50000000 loop insert into t6 values(i,'AAAAAA'); end loop; commit; end; / select * from v$log; dd if=/dev/null of=/u01/app/oracle/oradata/orcl/redo03.log bs=512 count=20
查看日志
SQL> start mount; SQL> alter database clear logfile group 3; alter database clear logfile group 3 * ERROR at line 1: ORA-00350: log 3 of instance orcl (thread 1) needs to be archived ORA-00312: online log 3 thread 1: '/u01/app/oracle/oradata/orcl/redo03.log' SQL> recover database until cancel; ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below ORA-01152: file 1 was not restored from a sufficiently old backup ORA-01110: data file 1: '/u01/app/oracle/oradata/orcl/system01.dbf'
创建pfile
SQL> create pfile='/tmp/pfile.ora' from spfile;
修改2个隐含参数
[oracle@DSI ~]$ vim /tmp/pfile.ora *._allow_resetlogs_corruption=true *._allow_error_simulation=true
SQL> shutdown abort; ORACLE instance shut down. SQL> startup mount pfile='/tmp/pfile.ora'; ORACLE instance started. Total System Global Area 784998400 bytes Fixed Size 2257352 bytes Variable Size 478154296 bytes Database Buffers 297795584 bytes Redo Buffers 6791168 bytes Database mounted. SQL> alter database open resetlogs; alter database open resetlogs * ERROR at line 1: ORA-01092: ORACLE instance terminated. Disconnection forced ORA-00600: internal error code, arguments: [2663], [0], [9710724], [0], [9711142], [], [], [], [], [], [], [] Process ID: 2108 Session ID: 125 Serial number: 5
ORA-600[2663]与常见的ORA-600[2662]类似,都是由于block的scn大于文件头的scn导致,只不过错误的对象不一样而已.对于该类问题,我们的处理方法一般就是简单的推scn
使用隐含参数_ALLOW_RESETLOGS_CORRUPTION后resetlogs打开数据库后,我们说很多时候你会遇到ORA-00600 2662号错误，这个错误的含义是:
A data block SCN is ahead of the current SCN.
The ORA-600 [2662] occurs when an SCN is compared to the dependent SCN
stored in a UGA variable.
If the SCN is less than the dependent SCN then we signal the ORA-600 [2662]
internal error.
参考：http://www.xifenfei.com/2014/09/ora-600-2663-%E6%95%85%E9%9A%9C%E6%81%A2%E5%A4%8D.html
ORA-600 [2662] [a] [b] [c] [d] [e]
Arg [a] Current SCN WRAP
Arg [b] Current SCN BASE
Arg [c] dependent SCN WRAP
Arg [d] dependent SCN BASE
Arg [e] Where present this is the DBA where the dependent SCN came from.
算法计算规则如下：Arg [c]*4得出一个数值，假设为V_Wrap,
如果Arg [d]=0，则V_Wrap值为需要的level
Arg [d] < 1073741824，V_Wrap+1为需要的level
Arg [d] < 2147483648，V_Wrap+2为需要的level
Arg [d] < 3221225472，V_Wrap+3为需要的level
增进SCN有两种常用方法
1.通过immediate trace name方式(在数据库Open状态下)
alter session set events 'IMMEDIATE trace name ADJUST_SCN level x';
2.通过10015事件(在数据库无法打开，mount状态下)
alter session set events '10015 trace name adjust_scn level x';
注:level 1为增进SCN 10亿 (1 billion) (1024*1024*1024),通常Level 1已经足够。也可以根据实际情况适当调整
SQL> exit [oracle@DSI ~]$ sqlplus / as sysdba SQL> startup mount pfile='/tmp/pfile.ora'; SQL> show parameter undo; NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ undo_management string AUTO undo_retention integer 900 undo_tablespace string UNDOTBS1 SQL> oradebug setmypid Statement processed. SQL> oradebug DUMPvar SGA kcsgscn_ kcslf kcsgscn_ [06001AE70, 06001AEA0) = 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 6001AB50 00000000
##使用10015 event手工推进scn
SQL> alter session set events '10015 trace name adjust_scn level 1'; Session altered. SQL> alter database open; Database altered. SQL> set linesize 1000 SQL> select * from v$log; GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME ---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ --------- 1 1 7 52428800 512 2 NO CURRENT 9733801 05-JUN-19 2.8147E+14 2 1 5 52428800 512 1 YES ACTIVE 9732698 05-JUN-19 9733241 05-JUN-19 3 1 6 52428800 512 1 YES ACTIVE 9733241 05-JUN-19 9733801 05-JUN-19 SQL> alter system switch logfile; System altered. SQL> / System altered. SQL> / System altered. SQL> / System altered. SQL> select * from v$log; GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME ---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ --------- 1 1 13 52428800 512 2 NO CURRENT 9735561 05-JUN-19 2.8147E+14 2 1 11 52428800 512 1 YES ACTIVE 9735350 05-JUN-19 9735452 05-JUN-19 3 1 12 52428800 512 1 YES ACTIVE 9735452 05-JUN-19 9735561 05-JUN-19
[oracle@DSI ~]$ tail -f -n 100 /u01/app/oracle/diag/rdbms/orcl/orcl/trace/alert_orcl.log #查看是否有报错信息，一般建议这个时候进行数据库导出，导入，以防止其他问题产生 SQL> select * from test.t5; ID NAME ---------- ---------------------------------------------------------------------------------------------------- 1 AAAAA 2 BBBBB 3 CCCCC SQL> select * from t6; select * from t6 * ERROR at line 1: ORA-00942: table or view does not exist