分类目录归档：数据库

ORA-00227: corrupt block detected in control file

发表于 2024 年 12 月 18 日 由 惜分飞

由于服务器断电，导致oracle数据库无法正常启动，recover报ORA-00353 ORA-00312错

SQL> recover datafile 1;
ORA-00283: recovery session canceled due to errors
ORA-00368: checksum error in redo log block
ORA-00353: log corruption near block 8 change 237896529 time 12/03/2024 22:03:32
ORA-00312: online log 1 thread 1: 'E:\ORADATA\xifenfei\REDO01.LOG'

报错提示比较明显,是由于oracle恢复需要的redo损坏,导致无法进行正常恢复,这种情况下,只能尝试强制打开库

SQL> recover database until cancel;
ORA-00279: change 237857808 generated at 12/03/2024 07:06:31 needed for thread 1
ORA-00289: suggestion : C:\ORACLE\PRODUCT\10.2.0.3\DB_1\RDBMS\ARC20892_0929553713.001
ORA-00280: change 237857808 for thread 1 is in sequence #20892


Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
cancel
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: 'E:\ORADATA\xifenfei\SYSTEM01.DBF'


ORA-01112: media recovery not started


SQL> alter database open resetlogs;
alter database open resetlogs
*
ERROR at line 1:
ORA-01092: ORACLE instance terminated. Disconnection forced

对于这种ORA-01092错误,需要查看alert日志确认具体报错原因

Tue Dec 17 22:03:59 2024
alter database open resetlogs
RESETLOGS is being done without consistancy checks. This may result
in a corrupted database. The database should be recreated.
RESETLOGS after incomplete recovery UNTIL CHANGE 237857808
Resetting resetlogs activation ID 2015910641 (0x78285af1)
Tue Dec 17 22:04:00 2024
Setting recovery target incarnation to 2
Tue Dec 17 22:04:00 2024
Advancing SCN to 16106127360 according to _minimum_giga_scn
Tue Dec 17 22:04:00 2024
Assigning activation ID 2274407914 (0x8790b5ea)
Thread 1 opened at log sequence 1
  Current log# 1 seq# 1 mem# 0: E:\ORADATA\xifenfei\REDO01.LOG
Successful open of redo thread 1
Tue Dec 17 22:04:01 2024
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Tue Dec 17 22:04:01 2024
SMON: enabling cache recovery
Tue Dec 17 22:04:01 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\udump\xifenfei_ora_816.trc:
ORA-00704: bootstrap process failure
ORA-39700: database must be opened with UPGRADE option

Tue Dec 17 22:04:01 2024
Error 704 happened during db open, shutting down database
USER: terminating instance due to error 704
Tue Dec 17 22:04:01 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_pmon_2472.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:01 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_reco_2576.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:01 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_smon_2584.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:02 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_ckpt_2216.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:02 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_lgwr_1556.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:02 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_dbw0_1528.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:02 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_psp0_2896.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:02 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_mman_904.trc:
ORA-00704: bootstrap process failure

Tue Dec 17 22:04:02 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_dbw1_1732.trc:
ORA-00704: bootstrap process failure

Instance terminated by USER, pid = 816
ORA-1092 signalled during: alter database open resetlogs...

由于对oracle粗心对于oracle版本判断失误,导致打开数据库失败,使用正确版本打开数据库发现ctl有报错,导致打开依旧失败(这种错误一般比较少见，大部分ctl异常都是在oracle mount状态无法成功)

Tue Dec 17 22:10:48 2024
Recovery of Online Redo Log: Thread 1 Group 1 Seq 1 Reading mem 0
  Mem# 0: E:\ORADATA\xifenfei\REDO01.LOG
Tue Dec 17 22:10:48 2024
Completed redo application
Tue Dec 17 22:10:48 2024
Completed crash recovery at
 Thread 1: logseq 1, block 3, scn 16106147363
 0 data blocks read, 0 data blocks written, 1 redo blocks read
Tue Dec 17 22:10:48 2024
Read from controlfile member 'E:\ORADATA\xifenfei\CONTROL01.CTL' has found a corrupted block (blk# 432, seq# 132194)
Hex dump of (file 0, block 432) in trace file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_lgwr_2728.trc
Corrupt block relative dba: 0x000001b0 (file 0, block 432)
Fractured block found during control file block read
Data in bad block:
 type: 0 format: 0 rdba: 0x00000000
 last change scn: 0x0000.00000000 seq: 0x0 flg: 0x00
 spare1: 0x0 spare2: 0x0 spare3: 0x0
 consistency value in tail: 0x03e71501
 check value in block header: 0x0
 block checksum disabled
Hex dump of (file 0, block 432) in trace file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_lgwr_2728.trc
Corrupt block relative dba: 0x000001b0 (file 0, block 432)
Fractured block found during control file block read
Data in bad block:
 type: 0 format: 0 rdba: 0x00000000
 last change scn: 0x0000.00000000 seq: 0x0 flg: 0x00
 spare1: 0x0 spare2: 0x0 spare3: 0x0
 consistency value in tail: 0x03e71501
 check value in block header: 0x0
 block checksum disabled
Tue Dec 17 22:10:48 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_lgwr_2728.trc:
ORA-00202: control file: 'E:\ORADATA\xifenfei\CONTROL01.CTL'

Tue Dec 17 22:10:48 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_lgwr_2728.trc:
ORA-00227: corrupt block detected in control file: (block 432, # blocks 1)
ORA-00202: control file: 'E:\ORADATA\xifenfei\CONTROL01.CTL'

LGWR: terminating instance due to error 227
Tue Dec 17 22:10:48 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_pmon_2056.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_dbw0_1636.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_reco_2468.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_smon_2996.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_ckpt_2292.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_dbw1_508.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_mman_1728.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Tue Dec 17 22:10:49 2024
Errors in file c:\oracle\product\10.2.0\admin\xifenfei\bdump\xifenfei_psp0_1724.trc:
ORA-00227: corrupt block detected in control file: (block , # blocks )

Instance terminated by LGWR, pid = 2728

重建ctl,打开数据库成功,导出数据,完成本次恢复任务

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手工删除19c rac

发表于 2024 年 12 月 15 日 由 惜分飞

在某些时候,需要删除掉手工删除19c RAC,重新安装,以下是比较简便的操作(root用户操作)

source /home/grid/.bash_profile
crsctl stop crs
systemctl disable oracle-ohasd
systemctl stop oracle-ohasd
systemctl disable oracle-tfa.service
systemctl stop oracle-tfa

rm -rf /etc/oracle
rm -rf /etc/ora*
rm -rf /u01
rm -rf /tmp/CVU*
rm -rf /tmp/.oracle
rm -rf /var/tmp/.oracle
rm -f /etc/init.d/init.ohasd
rm -f /etc/systemd/system/oracle-ohasd.service
rm -f /etc/systemd/system/oracle-tfa.service

dd if=/dev/zero of=/dev/asm_ocr1 bs=1024 count=1
dd if=/dev/zero of=/dev/asm_ocr2 bs=1024 count=1
dd if=/dev/zero of=/dev/asm_ocr3 bs=1024 count=1
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解决oracle数据文件路径有回车故障

发表于 2024 年 12 月 14 日 由 惜分飞

最近遇到一个硬件恢复朋友的请求,oracle数据库文件恢复出来了,但是在linux上面启动的时候,有两个文件无法检测到,dbv检测正常.
checkpiont_err
dbv

通过分析是由于文件无法找到原因导致
file-not-found
进一步检查发现原库这两个文件结尾带有回车,但是恢复出来的文件不带回车
huiche
对于这个故障,我在测试环境进行了重现并且给予解决
1. 创建带回车键数据文件

SQL> create tablespace xifenfei datafile '/u01/app/oracle/oradata/xifenfei/xff01.dbf
  2  ' size 128m;

Tablespace created.

SQL> alter tablespace xifenfei add datafile '/u01/app/oracle/oradata/xifenfei/xff02.dbf' size 128M;

Tablespace altered.

SQL> select name from v$datafile;

NAME
--------------------------------------------------------------------------------
/u01/app/oracle/oradata/xifenfei/system01.dbf
/u01/app/oracle/oradata/xifenfei/sysaux01.dbf
/u01/app/oracle/oradata/xifenfei/undotbs01.dbf
/u01/app/oracle/oradata/xifenfei/users01.dbf
/u01/app/oracle/oradata/xifenfei/xff01.dbf
/u01/app/oracle/oradata/xifenfei/xff02.dbf

6 rows selected.

2.操作系统层面查看文件（在我的ssh工具中,可以看到带回车键文件和不带回车文件不一样,使用的是crt工具,其他工具是否显示不确定）

[oracle@xifenfei ~]$ cd /u01/app/oracle/oradata/xifenfei/
[oracle@xifenfei xifenfei]$ ls -l xff*
-rw-r----- 1 oracle oinstall 134225920 Dec 14 08:05 xff01.dbf?
-rw-r----- 1 oracle oinstall 134225920 Dec 14 08:05 xff02.dbf

3. 操作系统层面重命名数据文件

[oracle@xifenfei xifenfei]$ mv xff01.dbf* xff01.dbf
[oracle@xifenfei xifenfei]$ ls -l xff*
-rw-r----- 1 oracle oinstall 134225920 Dec 14 08:05 xff01.dbf
-rw-r----- 1 oracle oinstall 134225920 Dec 14 08:05 xff02.dbf

3. 数据库层面重启看文件情况,发现文件不能被正常发现(当然不能,文件被os层面mv了)

SQL> shutdown abort;
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.

Total System Global Area  551165952 bytes
Fixed Size                  2255112 bytes
Variable Size             369100536 bytes
Database Buffers          171966464 bytes
Redo Buffers                7843840 bytes
Database mounted.
SQL> select file#, CHECKPOINT_CHANGE# from v$datafile_header;

     FILE# CHECKPOINT_CHANGE#
---------- ------------------
         1          306775013
         2          306775013
         3          306775013
         4          306775013
         5                  0
         6          306779423

6 rows selected.

RMAN> report schema;

Report of database schema for database with db_unique_name XIFENFEI

List of Permanent Datafiles
===========================
File Size(MB) Tablespace           RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1    770      SYSTEM               ***     /u01/app/oracle/oradata/xifenfei/system01.dbf
2    1950     SYSAUX               ***     /u01/app/oracle/oradata/xifenfei/sysaux01.dbf
3    70       UNDOTBS1             ***     /u01/app/oracle/oradata/xifenfei/undotbs01.dbf
4    12       USERS                ***     /u01/app/oracle/oradata/xifenfei/users01.dbf
5    0        XIFENFEI             ***     /u01/app/oracle/oradata/xifenfei/xff01.dbf

6    128      XIFENFEI             ***     /u01/app/oracle/oradata/xifenfei/xff02.dbf

4. 解决控制文件和数据文件实际名称不一致问题

RMAN> catalog datafilecopy '/u01/app/oracle/oradata/xifenfei/xff01.dbf';

using target database control file instead of recovery catalog
cataloged datafile copy
datafile copy file name=/u01/app/oracle/oradata/xifenfei/xff01.dbf RECID=1 STAMP=1187684217

RMAN> switch datafile 5 to copy;

datafile 5 switched to datafile copy "/u01/app/oracle/oradata/xifenfei/xff01.dbf"

RMAN> report schema;

Report of database schema for database with db_unique_name XIFENFEI

List of Permanent Datafiles
===========================
File Size(MB) Tablespace           RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1    770      SYSTEM               ***     /u01/app/oracle/oradata/xifenfei/system01.dbf
2    1950     SYSAUX               ***     /u01/app/oracle/oradata/xifenfei/sysaux01.dbf
3    70       UNDOTBS1             ***     /u01/app/oracle/oradata/xifenfei/undotbs01.dbf
4    12       USERS                ***     /u01/app/oracle/oradata/xifenfei/users01.dbf
5    128      XIFENFEI             ***     /u01/app/oracle/oradata/xifenfei/xff01.dbf
6    128      XIFENFEI             ***     /u01/app/oracle/oradata/xifenfei/xff02.dbf

List of Temporary Files
=======================
File Size(MB) Tablespace           Maxsize(MB) Tempfile Name
---- -------- -------------------- ----------- --------------------
1    123      TEMP                 32767       /u01/app/oracle/oradata/xifenfei/temp01.dbf


RMAN> alter database open;

database opened
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