数据库启动ORA-08103故障恢复

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标题:数据库启动ORA-08103故障恢复

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数据库在open过程报ORA-08103错误导致数据库无法正确启动

Fri Jul 18 22:02:51 2014
SMON: enabling tx recovery
Fri Jul 18 22:02:51 2014
Errors in file d:\oracle\product\10.2.0\admin\kemu3\udump\kemu3_ora_29788.trc:
ORA-00604: ?? SQL ?? 1 ????
ORA-08103: ??????

Fri Jul 18 22:02:51 2014
Database Characterset is ZHS16GBK
Fri Jul 18 22:02:51 2014
Errors in file d:\oracle\product\10.2.0\admin\kemu3\bdump\kemu3_smon_29704.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-08103: object no longer exists

Fri Jul 18 22:02:51 2014
Errors in file d:\oracle\product\10.2.0\admin\kemu3\bdump\kemu3_smon_29704.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-08103: object no longer exists

Fri Jul 18 22:02:51 2014
Errors in file d:\oracle\product\10.2.0\admin\kemu3\bdump\kemu3_smon_29704.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-08103: object no longer exists

Fri Jul 18 22:02:52 2014
Errors in file d:\oracle\product\10.2.0\admin\kemu3\bdump\kemu3_smon_29704.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-08103: object no longer exists

replication_dependency_tracking turned off (no async multimaster replication found)
Starting background process QMNC
QMNC started with pid=18, OS id=29876
Fri Jul 18 22:02:53 2014
Errors in file d:\oracle\product\10.2.0\admin\kemu3\bdump\kemu3_smon_29704.trc:
ORA-00604: error occurred at recursive SQL level 1
ORA-08103: object no longer exists

Fri Jul 18 22:02:54 2014
ORA-604 signalled during: alter database open...

对数据库启动过程做10046

PARSING IN CURSOR #22 len=210 dep=2 uid=0 oct=3 lid=0 tim=20960424464 hv=864012087 ad='3063f0b4'
select /*+ rule */ bucket_cnt, row_cnt, cache_cnt, null_cnt, timestamp#, sample_size, minimum, 
maximum, distcnt, lowval, hival, density, col#, spare1, spare2, avgcln from hist_head$ where obj#=:1 and intcol#=:2
END OF STMT
EXEC #22:c=0,e=80,p=0,cr=0,cu=0,mis=0,r=0,dep=2,og=3,tim=20960424461
WAIT #22: nam='db file sequential read' ela= 5452 file#=1 block#=60213 blocks=1 obj#=4586 tim=20960429962
FETCH #22:c=0,e=5967,p=1,cr=1,cu=0,mis=0,r=0,dep=2,og=3,tim=20960430462
*** KEWUXS - encountered error: (ORA-00604: 递归 SQL 级别 2 出现错误
ORA-08103: 对象不再存在
)  
*** kewrwdbi_1: Error=13515 encountered during run_once
BINDS #21:
kkscoacd
 Bind#0
  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00
  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0
  kxsbbbfp=0a217744  bln=22  avl=01  flg=05
  value=0
 Bind#1
  oacdty=01 mxl=32(20) mxlc=00 mal=00 scl=00 pre=00
  oacflg=18 fl2=0001 frm=01 csi=852 siz=32 off=0
  kxsbbbfp=0a217718  bln=32  avl=20  flg=05
  value="WRI$_ADV_DEFINITIONS"
 Bind#2
  oacdty=02 mxl=22(22) mxlc=00 mal=00 scl=00 pre=00
  oacflg=08 fl2=0001 frm=00 csi=00 siz=24 off=0
  kxsbbbfp=0a2176f4  bln=24  avl=02  flg=05
  value=1

这里很明显数据库启动过程,由于hist_head$的file 1 block 60213中的object_id 与 data_object_id 不匹配,从而出现ORA-08103错误,导致数据库无法正常启动,这里的故障的对象为hist_head$,非oracle核心对象,因此直接标记该block 为坏块(模拟普通ORA-08103并解决,模拟极端ORA-08103并解决,rman制造坏块,bbed修复坏块,bbed破坏数据文件),然后启动数据库,备份hist_head$表数据,然后truncate hist_head$,再插入hist_head$,整体完工.
在数据库open过程中,如果遇到ora-8103错误,导致数据库无法正常open,可以对其做10046定位到故障block和对象,然后判断对象是否数据库启动必须的对象,甚至是bootstarp$中对象,然后采取不同的处理方法.

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