分类目录归档：Oracle

bbed修改undo$(回滚段)状态

发表于 2012 年 7 月 29 日 由 惜分飞

指定undo$对应数据块(11g 1_225,10g 1_106)[具体时候需要查询]

BBED> set file 1 block 225
        FILE#           1
        BLOCK#          225

查询数据内容,主要关注kdbr

BBED> map
 File: /u01/oracle/oradata/ora11g/system01.dbf (1)
 Block: 225                                   Dba:0x004000e1
------------------------------------------------------------
 KTB Data Block (Table/Cluster)

 struct kcbh, 20 bytes                      @0       

 struct ktbbh, 48 bytes                     @20      

 struct kdbh, 14 bytes                      @68      

 struct kdbt[1], 4 bytes                    @82      

 sb2 kdbr[31]                               @86      <===表示31条记录,从0开始 

 ub1 freespace[3644]                        @148     

 ub1 rowdata[4396]                          @3792    

 ub4 tailchk                                @8188

查看30号回滚段内容(列举其中一个)

BBED> p *kdbr[30]
rowdata[0]
----------
ub1 rowdata[0]                              @3792     0x2c

BBED> x /rncnnnnnnn
rowdata[0]                                  @3792    
----------
flag@3792: 0x2c (KDRHFL, KDRHFF, KDRHFH)
lock@3793: 0x01
cols@3794:   17

col    0[2] @3795: 30 
col   1[21] @3798: _SYSSMU30_3379578723$
col    2[2] @3820: 1 
col    3[2] @3823: 3 
col    4[3] @3826: 432 
col    5[1] @3830: 0 
col    6[1] @3832: 0 
col    7[1] @3834: 0 
col    8[1] @3836: 0 
col    9[1] @3838: 0 
col   10[2] @3840: 5     <===修改前对应值undo$.status$
col   11[2] @3843: 6 
col   12[0] @3846: *NULL*
col   13[0] @3847: *NULL*
col   14[0] @3848: *NULL*
col   15[0] @3849: *NULL*
col   16[2] @3850: 2 

BBED> x /r
rowdata[0]                                  @3792    
----------
flag@3792: 0x2c (KDRHFL, KDRHFF, KDRHFH)
lock@3793: 0x01
cols@3794:   17

col    0[2] @3795:  0xc1  0x1f 
col   1[21] @3798:  0x5f  0x53  0x59  0x53  0x53  0x4d  0x55  0x33  0x30  0x5f 
 0x33  0x33  0x37  0x39  0x35  0x37  0x38  0x37  0x32  0x33  0x24 
col    2[2] @3820:  0xc1  0x02 
col    3[2] @3823:  0xc1  0x04 
col    4[3] @3826:  0xc2  0x05  0x21 
col    5[1] @3830:  0x80 
col    6[1] @3832:  0x80 
col    7[1] @3834:  0x80 
col    8[1] @3836:  0x80 
col    9[1] @3838:  0x80 
col   10[2] @3840:  0xc1  0x06   <===修改前16进制值 
col   11[2] @3843:  0xc1  0x07 
col   12[0] @3846: *NULL*
col   13[0] @3847: *NULL*
col   14[0] @3848: *NULL*
col   15[0] @3849: *NULL*
col   16[2] @3850:  0xc1  0x03

修改回滚段状态

BBED> m /x 02 offset 3842    <===注意修改为02
Warning: contents of previous BIFILE will be lost. Proceed? (Y/N) y
 File: /u01/oracle/oradata/ora11g/system01.dbf (1)
 Block: 225              Offsets: 3842 to 4353           Dba:0x004000e1
------------------------------------------------------------------------
 0202c107 ffffffff 02c1032c 001102c1 


 <32 bytes per line>

BBED> p *kdbr[30]
rowdata[0]
----------
ub1 rowdata[0]                              @3792     0x2c

BBED> x /r
rowdata[0]                                  @3792    
----------
flag@3792: 0x2c (KDRHFL, KDRHFF, KDRHFH)
lock@3793: 0x01
cols@3794:   17

col    0[2] @3795:  0xc1  0x1f 
col   1[21] @3798:  0x5f  0x53  0x59  0x53  0x53  0x4d  0x55  0x33  0x30  0x5f 
 0x33  0x33  0x37  0x39  0x35  0x37  0x38  0x37  0x32  0x33  0x24 
col    2[2] @3820:  0xc1  0x02 
col    3[2] @3823:  0xc1  0x04 
col    4[3] @3826:  0xc2  0x05  0x21 
col    5[1] @3830:  0x80 
col    6[1] @3832:  0x80 
col    7[1] @3834:  0x80 
col    8[1] @3836:  0x80 
col    9[1] @3838:  0x80 
col   10[2] @3840:  0xc1  0x02   <===修改后16进制值
col   11[2] @3843:  0xc1  0x07 
col   12[0] @3846: *NULL*
col   13[0] @3847: *NULL*
col   14[0] @3848: *NULL*
col   15[0] @3849: *NULL*
col   16[2] @3850:  0xc1  0x03 

BBED>  x /rncnnnnnnn
rowdata[0]                                  @3792    
----------
flag@3792: 0x2c (KDRHFL, KDRHFF, KDRHFH)
lock@3793: 0x01
cols@3794:   17

col    0[2] @3795: 30 
col   1[21] @3798: _SYSSMU30_3379578723$
col    2[2] @3820: 1 
col    3[2] @3823: 3 
col    4[3] @3826: 432 
col    5[1] @3830: 0 
col    6[1] @3832: 0 
col    7[1] @3834: 0 
col    8[1] @3836: 0 
col    9[1] @3838: 0 
col   10[2] @3840: 1    <===实际展示值undo$.status$
col   11[2] @3843: 6 
col   12[0] @3846: *NULL*
col   13[0] @3847: *NULL*
col   14[0] @3848: *NULL*
col   15[0] @3849: *NULL*
col   16[2] @3850: 2

1.修改为02(表示的实际值比修改值大1[1:DELETE,2:OFFLINE, 3:ONLINE,4:UNDEFINED,5:NEEDS RECOVERY,6:PARTLY AVAILABLE,其他表示:UNDEFINED])
2.Offset需要在10列漂移量上+2(或者11列偏移量-1)

修改验证值

BBED> sum apply
Check value for File 1, Block 225:
current = 0x9708, required = 0x9708

补充说明
1)通过dbms_metadata.get_ddl分析DBA_ROLLBACK_SEGS可以知道seg$.status$表示含义

2, 'OFFLINE'
3, 'ONLINE',
4, 'UNDEFINED'
5, 'NEEDS RECOVERY',
6, 'PARTLY AVAILABLE'
other, 'UNDEFINED'

2)该方法一般出现在使用隐含参数屏蔽回滚段无效之后使用,一般不到最后,不建议使用该方法,可能引起不可预知的后果
3)使用该方法启动数据库后,需要手工删除seg$中被bbed处理过的回滚段

发表在 非常规恢复 | 标签为 , , | 一条评论

因非常规操作导致删除表空间提示ORA-01561解决办法

发表于 2012 年 7 月 29 日 由 惜分飞

今天测试手工通过bbed修改undo$中回滚段状态(从status$=5修改为1)[NEEDS RECOVERY 修改为 DELETE],然后尝试删除表空间,发现不能删除
删除表空间提示ORA-01561

SQL> drop tablespace undotbs;
drop tablespace undotbs
*
ERROR at line 1:
ORA-01561: failed to remove all objects in the tablespace specified


SQL> drop tablespace undotbs including contents; 
drop tablespace undotbs including contents
*
ERROR at line 1:
ORA-01561: failed to remove all objects in the tablespace specified

查询相关信息

SQL> select ts#,name from v$tablespace;

       TS# NAME
---------- ------------------------------
         0 SYSTEM
         1 SYSAUX
         4 USERS
         6 UNDOTBS
         3 TEMP

SQL> select name,ts#,status$ from undo$;

NAME                                  TS#    STATUS$
------------------------------ ---------- ----------
SYSTEM                                  0          3
_SYSSMU1_3138885392$                    2          1
_SYSSMU2_4228238222$                    2          1
_SYSSMU3_2210742642$                    2          1
_SYSSMU4_1455318006$                    2          1
_SYSSMU5_3787622316$                    2          1
_SYSSMU6_2460248069$                    2          1
_SYSSMU7_1924883037$                    2          1
_SYSSMU8_1909280886$                    2          1
_SYSSMU9_3593450615$                    2          1
_SYSSMU10_2490256178$                   2          1

NAME                                  TS#    STATUS$
------------------------------ ---------- ----------
_SYSSMU11_253524401$                    6          1
_SYSSMU12_842775869$                    6          1
_SYSSMU13_2794767139$                   6          1
_SYSSMU14_2067649841$                   6          1
_SYSSMU15_3270221471$                   6          1
_SYSSMU16_4094338609$                   6          1
_SYSSMU17_709661646$                    6          1
_SYSSMU18_699588262$                    6          1
_SYSSMU19_718640828$                    6          1
_SYSSMU20_3516920665$                   6          1
_SYSSMU21_793796797$                    6          1

NAME                                  TS#    STATUS$
------------------------------ ---------- ----------
_SYSSMU22_3988785920$                   6          1
_SYSSMU23_1828333848$                   6          1
_SYSSMU24_1223218862$                   6          1
_SYSSMU25_2939844199$                   6          1
_SYSSMU26_1317300205$                   6          1
_SYSSMU27_1654033223$                   6          1
_SYSSMU28_3748619502$                   6          1
_SYSSMU29_1868765904$                   6          1
_SYSSMU30_3379578723$                   6          1

31 rows selected.

SQL> select segment_name,status from dba_rollback_segs;

SEGMENT_NAME                   STATUS
------------------------------ ----------------
SYSTEM                         ONLINE

通过这里可以看出,通过bbed的修改,除system回滚段外,其他均已经被标志为delete状态,对于这样的情况,很本能的怀疑是extent或者segment未被清理掉导致

查询EXTENT和SEGMENT

SQL> select SEGMENT_NAME from dba_extents where TABLESPACE_NAME='UNDOTBS';

no rows selected

SQL> select segment_name from dba_segments where  TABLESPACE_NAME='UNDOTBS';

no rows selected

SQL> select count(*) from seg$ where ts#=6;

  COUNT(*)
----------
        10

SQL> select count(*) from seg$ where ts#=2;

  COUNT(*)
----------
         0

SQL> select file#,type# from  seg$ where ts#=6;

     FILE#      TYPE#
---------- ----------
         3         10
         3         10
         3         10
         3         10
         3         10
         3         10
         3         10
         3         10
         3         10
         3         10

10 rows selected.

通过查询我们发现SEG$中含有10条记录,而通过dbms_metadata.get_ddl分析DBA_SEGMENTS是的,得出type为10恰好是TYPE2 UNDO信息.

解决办法
删除掉这些因为手工修改undo$信息导致遗留下来的后遗症对象

SQL> delete from seg$ where ts#=6;

10 rows deleted.

SQL> commit;

Commit complete.

SQL> drop tablespace undotbs ;

Tablespace dropped.

这样的直接修改基表的做法,在一般的情况下非常不建议使用,可能带来系统不稳定.但是在数据库异常处理过程中,可能将成为一个法宝

发表在 Oracle | 标签为 | 一条评论

truncate table强制终止导致ORA-00600[ktspfundo-2]

发表于 2012 年 7 月 27 日 由 惜分飞

朋友的金蝶erp系统异常abort,让我帮忙分析原因.
ORA-00600[ktspfundo-2]错误

Fri Jul 27 08:53:33 2012
Errors in file /u01/oracle/admin/finance/udump/finance_ora_7687.trc:
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
ORA-01013: user requested cancel of current operation
Fri Jul 27 08:53:33 2012
Errors in file /u01/oracle/admin/finance/udump/finance_ora_7687.trc:
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
ORA-01013: user requested cancel of current operation
Fri Jul 27 08:54:16 2012
Errors in file /u01/oracle/admin/finance/udump/finance_ora_7687.trc:
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
ORA-01013: user requested cancel of current operation
Fri Jul 27 08:57:12 2012
Errors in file /u01/oracle/admin/finance/bdump/finance_smon_4156.trc:
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
Fri Jul 27 08:57:20 2012
ORACLE Instance finance (pid = 15)-Error 600 encountered while recovering transaction (8, 3) on object 34294107.
Fri Jul 27 08:57:20 2012
Errors in file /u01/oracle/admin/finance/bdump/finance_smon_4156.trc:
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
Fri Jul 27 09:07:14 2012
Errors in file /u01/oracle/admin/finance/bdump/finance_smon_4156.trc:
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
Fri Jul 27 09:07:15 2012
Errors in file /u01/oracle/admin/finance/bdump/finance_pmon_4130.trc:
ORA-00474: SMON process terminated with error

从这里可以大概看出数据库在进行一个参数,然后用户终止该操作导致,导致ORA-00600[ktspfundo-2]错误,然后出现smon回滚,因为回滚失败从而使得数据块down掉

分析trace文件

*** 2012-07-27 08:53:33.293
ksedmp: internal or fatal error
ORA-00600: internal error code, arguments: [ktspfundo-2], [], [], [], [], [], [], []
ORA-01013: user requested cancel of current operation
Current SQL statement for this session:
TRUNCATE TABLE VTC3B8DR2G7J926FWOBK839XOR
----- Call Stack Trace -----
calling              call     entry                argument values in hex      
location             type     point                (? means dubious value)     
-------------------- -------- -------------------- ----------------------------
ksedst()+31          call     ksedst1()            000000000 ? 000000001 ?
                                                   7FFF41B0EE70 ? 7FFF41B0EED0 ?
                                                   7FFF41B0EE10 ? 000000000 ?
ksedmp()+610         call     ksedst()             000000000 ? 000000001 ?
                                                   7FFF41B0EE70 ? 7FFF41B0EED0 ?
                                                   7FFF41B0EE10 ? 000000000 ?
ksfdmp()+21          call     ksedmp()             000000003 ? 000000001 ?
                                                   7FFF41B0EE70 ? 7FFF41B0EED0 ?
                                                   7FFF41B0EE10 ? 000000000 ?
kgerinv()+161        call     ksfdmp()             000000003 ? 000000001 ?
                                                   7FFF41B0EE70 ? 7FFF41B0EED0 ?
                                                   7FFF41B0EE10 ? 000000000 ?
kgeasnmierr()+163    call     kgerinv()            0068966E0 ? 2AE87C6E1168 ?
                                                   7FFF41B0EED0 ? 7FFF41B0EE10 ?
                                                   000000000 ? 000000000 ?
ktspfundo()+3902     call     kgeasnmierr()        0068966E0 ? 2AE87C6E1168 ?
                                                   7FFF41B0EED0 ? 7FFF41B0EE10 ?
                                                   000000010 ? 00689C0C0 ?
kcoubk()+351         call     ktspfundo()          7FFF41B10810 ? 2AE80C800CFA ?
                                                   4D6EE6014 ? 000000002 ?
                                                   000000010 ? 7FFF41B11128 ?
ktundo()+1208        call     kcoubk()             7FFF41B111F8 ? 7FFF41B10810 ?
                                                   2AE87E384024 ? 000000002 ?
                                                   000000002 ? 000000000 ?
ktubko()+499         call     ktundo()             000000001 ? 010E5C341 ?
                                                   2AE87E384020 ? 000000058 ?
                                                   000008430 ? 7657E9990 ?
ktuabt()+810         call     ktubko()             7657E9990 ? 7FFF41B1188C ?
                                                   000000002 ? 7FFF41B11648 ?
                                                   7FFF41B11570 ? 7FFF41B11870 ?
ktcrab()+292         call     ktuabt()             7657E98F8 ? 000000002 ?
                                                   000000002 ? 7FFF41B11648 ?
                                                   7FFF41B11570 ? 7FFF41B11870 ?
ktccle()+516         call     ktcrab()             7657E98F8 ? 000000002 ?
                                                   000000002 ? 7FFF41B11648 ?
                                                   7FFF41B11570 ? 7FFF41B11870 ?
ksepop()+384         call     ktccle()             000000006 ? 000000002 ?
                                                   000000002 ? 7FFF41B11648 ?
                                                   7FFF41B11570 ? 7FFF41B11870 ?
kgepop()+123         call     ksepop()             0068966E0 ? 000000006 ?
                                                   000000002 ? 7FFF41B11648 ?
                                                   7FFF41B11570 ? 7FFF41B11870 ?
kgesev()+315         call     kgepop()             0068966E0 ? 2AE87C6E1168 ?
                                                   0000003F5 ? 7FFF41B11648 ?
                                                   7FFF41B11570 ? 7FFF41B11870 ?
ksesec0()+186        call     kgesev()             0068966E0 ? 2AE87C6E1168 ?
                                                   0000003F5 ? 000000000 ?
                                                   7FFF41B11B30 ? 7FFF41B11870 ?
ksqcmi()+2322        call     ksesec0()            000000000 ? 000000000 ?
                                                   000001000 ? 000000000 ?
                                                   000000013 ? 000000005 ?
ksqcnv()+496         call     ksqcmi()             77E586B88 ? 000000006 ?
                                                   00000FFFF ? 00147AE14 ?
                                                   7FFF41B126A0 ? 7FFF41B128A8 ?
ksqcov()+44          call     ksqcnv()             77E586B88 ? 000000006 ?
                                                   000000000 ? 00147AE14 ?
                                                   7FFF41B128A8 ? 000000004 ?
kcbo_reuse_obj()+14  call     ksqcov()             77E586B68 ? 000000006 ?
09                                                 000000000 ? 00147AE14 ?
                                                   7FFF41B128A8 ? 000000004 ?
kcbrbo()+1126        call     kcbo_reuse_obj()     7FFF41B12F04 ? 7FFF41B12F0C ?
                                                   000000001 ? 00147AE14 ?
                                                   7FFF41B128A8 ? 000000004 ?
ktsstrn_segment()+3  call     kcbrbo()             7FFF41B12F04 ? 7FFF41B12F0C ?
941                                                000000001 ? 00147AE14 ?
                                                   7FFF41B128A8 ? 000000004 ?
kkbtts_trunc_tbl_se  call     ktsstrn_segment()    7FFF41B13180 ? 000000000 ?
g()+1018                                           0020C6444 ? 000000000 ?
                                                   7FFF41B14C00 ? 7FFF00000001 ?
kkbtrn()+8156        call     kkbtts_trunc_tbl_se  735ACA058 ? 77BC78D18 ?
                              g()                  000000000 ? 000000002 ?
                                                   000000000 ? 7FFF41B14C00 ?
opiexe()+15805       call     kkbtrn()             735ACA058 ? 000000000 ?
                                                   718831208 ? 000000000 ?
                                                   000000002 ? 7FFF00000000 ?
opiosq0()+3316       call     opiexe()             000000004 ? 000000000 ?
                                                   7FFF41B15F48 ? 00000000B ?
                                                   000000002 ? 7FFF00000000 ?
kpooprx()+315        call     opiosq0()            000000003 ? 00000000E ?
                                                   7FFF41B160B8 ? 0000000A4 ?
                                                   000000002 ? 7FFF00000000 ?
kpoal8()+799         call     kpooprx()            7FFF41B19264 ? 7FFF41B17280 ?
                                                   000000029 ? 000000001 ?
                                                   000000000 ? 7FFF00000000 ?
opiodr()+984         call     kpoal8()             00000005E ? 000000017 ?
                                                   7FFF41B19260 ? 000000001 ?
                                                   000000001 ? 7FFF00000000 ?
ttcpip()+1012        call     opiodr()             00000005E ? 000000017 ?
                                                   7FFF41B19260 ? 000000000 ?
                                                   0059C09B0 ? 7FFF00000000 ?
opitsk()+1322        call     ttcpip()             00689E3B0 ? 7FFF41B17248 ?
                                                   7FFF41B19260 ? 000000000 ?
                                                   7FFF41B18D58 ? 7FFF41B193C8 ?
opiino()+1026        call     opitsk()             000000003 ? 000000000 ?
                                                   7FFF41B19260 ? 000000001 ?
                                                   000000000 ? 4E58D8C00000001 ?
opiodr()+984         call     opiino()             00000003C ? 000000004 ?
                                                   7FFF41B1A428 ? 000000000 ?
                                                   000000000 ? 4E58D8C00000001 ?
opidrv()+547         call     opiodr()             00000003C ? 000000004 ?
                                                   7FFF41B1A428 ? 000000000 ?
                                                   0059C0460 ? 4E58D8C00000001 ?
sou2o()+114          call     opidrv()             00000003C ? 000000004 ?
                                                   7FFF41B1A428 ? 000000000 ?
                                                   0059C0460 ? 4E58D8C00000001 ?
opimai_real()+163    call     sou2o()              7FFF41B1A400 ? 00000003C ?
                                                   000000004 ? 7FFF41B1A428 ?
                                                   0059C0460 ? 4E58D8C00000001 ?
main()+116           call     opimai_real()        000000002 ? 7FFF41B1A490 ?
                                                   000000004 ? 7FFF41B1A428 ?
                                                   0059C0460 ? 4E58D8C00000001 ?
__libc_start_main()  call     main()               000000002 ? 7FFF41B1A490 ?
+244                                               000000004 ? 7FFF41B1A428 ?
                                                   0059C0460 ? 4E58D8C00000001 ?
_start()+41          call     __libc_start_main()  000723088 ? 000000002 ?
                                                   7FFF41B1A5E8 ? 000000000 ?
                                                   0059C0460 ? 000000002 ?
 
--------------------- Binary Stack Dump ---------------------

这里可以得到更加准确的信息,数据库在truncate table的时候,有人异常终止程序,导致数据库出现ORA-00600[ktspfundo-2].查询mos未发现相关bug记录,从这些信息初步判断是因为oracle的bug导致在truncate表的时候异常终止,然后出现该对象上的回滚记录异常(当然truncate本身不需要回滚,但是可能记录一些附带的回滚信息),然后出现对象回滚异常是的数据库down.重启数据库,对象回滚段信息已经自动回滚完成,数据库正常.因为truncate表被异常终止的情况本身不多见,引发该bug更不常见,如果只是偶尔发生一次,建议忽略该错误.当然如果有时间和兴趣,可以提交sr

发表在 ORA-xxxxx | 一条评论