分类目录归档:Oracle备份恢复

ORA-600 2662快速恢复之Patch scn工具

有客户数据库启动报ORA-600 2662错误

SQL> recover database;
完成介质恢复。
SQL> alter database open ;
alter database open 
*
第 1 行出现错误:
ORA-00603: ORACLE server session terminated by fatal error
ORA-00600: internal error code, arguments: [2662], [0], [272845978], [0], [272853062], [12583040]
ORA-00600: internal error code, arguments: [2662], [0], [272845977], [0], [272853062], [12583040]
ORA-01092: ORACLE instance terminated. Disconnection forced
ORA-00600: internal error code, arguments: [2662], [0], [272845973], [0], [272853062], [12583040]
进程 ID: 3528
会话 ID: 33 序列号: 1

通过自研开发的patch scn工具,修改数据库scn值
20240313180657


然后open数据库成功
20240313181402

对于这类故障,patch scn工具是最快速的解决方案

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断电引起文件scn异常数据库恢复

由于异常断电,数据库最初启动报错

Fri Mar 01 08:41:17 2024
ALTER DATABASE   MOUNT
Successful mount of redo thread 1, with mount id 1865809648
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: ALTER DATABASE   MOUNT
Fri Mar 01 08:41:24 2024
ALTER DATABASE OPEN
Errors in file /home/oracle/app/diag/rdbms/XFF/XFF/trace/XFF_ora_25243.trc:
ORA-01113: file 13 needs media recovery
ORA-01110: data file 13: '/data2/oracle/oradata/data/data00.dbf'
ORA-1113 signalled during: ALTER DATABASE OPEN...

经过应用厂商一系列操作,主要是如下操作

Fri Mar 01 11:10:56 2024
ALTER DATABASE RECOVER  datafile 13  
Media Recovery Start
Serial Media Recovery started
WARNING! Recovering data file 13 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
ORA-279 signalled during: ALTER DATABASE RECOVER  datafile 13  ...
Fri Mar 01 11:11:09 2024
ALTER DATABASE RECOVER    CONTINUE DEFAULT  
Media Recovery Log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
Errors with log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
ORA-308 signalled during: ALTER DATABASE RECOVER    CONTINUE DEFAULT  ...
ALTER DATABASE RECOVER    CONTINUE DEFAULT  
Media Recovery Log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
Errors with log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
ORA-308 signalled during: ALTER DATABASE RECOVER    CONTINUE DEFAULT  ...
ALTER DATABASE RECOVER CANCEL 
Media Recovery Canceled
Completed: ALTER DATABASE RECOVER CANCEL 
Fri Mar 01 11:16:50 2024
db_recovery_file_dest_size of 10240 MB is 0.00% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.
Fri Mar 01 11:51:56 2024
Starting ORACLE instance (normal)
Fri Mar 01 12:11:35 2024
alter database datafile 13 offline
ORA-1145 signalled during: alter database datafile 13 offline...
Fri Mar 01 12:12:29 2024
alter database recover cancel
ORA-1112 signalled during: alter database recover cancel...
Fri Mar 01 12:13:24 2024
ALTER DATABASE RECOVER  database until cancel  
Media Recovery Start
 started logmerger process
Fri Mar 01 12:13:24 2024
WARNING! Recovering data file 13 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 14 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 15 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 16 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 17 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 18 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 19 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 20 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 21 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
WARNING! Recovering data file 22 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
Parallel Media Recovery started with 48 slaves
ORA-279 signalled during: ALTER DATABASE RECOVER  database until cancel  ...
ALTER DATABASE RECOVER    CONTINUE DEFAULT  
Media Recovery Log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
Errors with log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
Errors in file /home/oracle/app/diag/rdbms/XFF/XFF/trace/XFF_pr00_38097.trc:
ORA-00308:cannot open archived log '/home/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-308 signalled during: ALTER DATABASE RECOVER    CONTINUE DEFAULT  ...
ALTER DATABASE RECOVER    CONTINUE DEFAULT  
Media Recovery Log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
Errors with log /home/oracle/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc
Errors in file /home/oracle/app/diag/rdbms/XFF/XFF/trace/XFF_pr00_38097.trc:
ORA-00308:cannot open archived log '/home/app/flash_recovery_area/XFF/archivelog/2024_03_01/o1_mf_1_153563_%u_.arc'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
ORA-308 signalled during: ALTER DATABASE RECOVER    CONTINUE DEFAULT  ...
ALTER DATABASE RECOVER CANCEL 
Signalling error 1152 for datafile 1!
Errors in file /home/oracle/app/diag/rdbms/XFF/XFF/trace/XFF_pr00_38097.trc:
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: '/data1/oracle/oradata/XFF/system01.dbf'
Slave exiting with ORA-1547 exception
Errors in file /home/oracle/app/diag/rdbms/XFF/XFF/trace/XFF_pr00_38097.trc:
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: '/data1/oracle/oradata/XFF/system01.dbf'
ORA-10879 signalled during: ALTER DATABASE RECOVER CANCEL ...
Fri Mar 01 13:23:05 2024
ALTER DATABASE DATAFILE '/data2/oracle/oradata/data/data00.dbf' OFFLINE DROP
Completed: ALTER DATABASE DATAFILE '/data2/oracle/oradata/data/data00.dbf' OFFLINE DROP

接手现场之后,尝试单个文件recover操作

SQL> recover datafile 1;
ORA-00283: recovery session canceled due to errors
ORA-00264: no recovery required
SQL> recover datafile 2;
Media recovery complete.
SQL> recover datafile 3;
Media recovery complete.
SQL> recover datafile 4;
Media recovery complete.
SQL> recover datafile 5;
Media recovery complete.
SQL> recover datafile 6,7,8,9,10;
Media recovery complete.
SQL> recover datafile 11;
Media recovery complete.
SQL> recover datafile 12;
Media recovery complete.
SQL> recover datafile 13;
ORA-00279: change 1474236715 generated at 02/29/2024 17:13:00 needed for thread 1
ORA-00289: suggestion : /home/oracle/app/program/11g/dbs/arch1_153563_1136037378.dbf
ORA-00280: change 1474236715 for thread 1 is in sequence #153563


Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

ORA-00308: cannot open archived log '/home/oracle/app/program/11g/dbs/arch1_153563_1136037378.dbf'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3


SQL> recover datafile 14;
ORA-00279: change 1474236715 generated at 02/29/2024 17:13:00 needed for thread 1
ORA-00289: suggestion : /home/oracle/app/program/11g/dbs/arch1_153563_1136037378.dbf
ORA-00280: change 1474236715 for thread 1 is in sequence #153563


Specify log: {<RET>=suggested | filename | AUTO | CANCEL}

ORA-00308: cannot open archived log '/home/oracle/app/program/11g/dbs/arch1_153563_1136037378.dbf'
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3

基于这样的情况,通过Oracle数据库异常恢复检查脚本(Oracle Database Recovery Check)检查发现/data2挂载点所有数据文件异常,由于以前的操作日志已经被清空无法判断原因,初步怀疑和这个挂载点本身有关系
20240303160404
20240303160524
这种情况直接使用bbed修改文件头,然后open库,再逻辑导出数据,完成本次数据恢复工作,参考类似文档
bbed 修改datafile header
使用bbed让rac中的sysaux数据文件online
当然这类故障也可以通过自研的Oracle Recovery Tools工具进行修复处理,类似文档:
Oracle Recovery Tools解决ORA-00279 ORA-00289 ORA-00280故障

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模拟带库实现rman远程备份

rman通过模拟带库备份到远程机器,需要先配置用户ssh到目标机器
linux平台oracle备份

RMAN> RUN {
2> ALLOCATE CHANNEL S1 DEVICE TYPE sbt
3> PARMS='SBT_LIBRARY=/tmp/rman_sync.so,ENV=(
4> OB_SERVER=www.xifenfei.com,
5> OB_USER=root,
6> OB_PORT=22123,
7> OB_PATH=/tmp)';
8> BACKUP CURRENT CONTROLFILE FORMAT 'ctl_%U';
9> }

allocated channel: S1
channel S1: SID=125 device type=SBT_TAPE
channel S1: SBT/SSH2-SFTP

Starting backup at 22-FEB-24
channel S1: starting full datafile backup set
channel S1: specifying datafile(s) in backup set
including current control file in backup set
channel S1: starting piece 1 at 22-FEB-24
channel S1: finished piece 1 at 22-FEB-24
piece handle=ctl_012jq4gg_1_1 tag=TAG20240222T190344 comment=API Version 2.0,MMS Version 1.0.9.0
channel S1: backup set complete, elapsed time: 00:00:25
Finished backup at 22-FEB-24
released channel: S1

RMAN> list backup;

List of Backup Sets
===================

BS Key  Type LV Size       Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
1       Full    9.50M      SBT_TAPE    00:00:24     22-FEB-24
        BP Key: 1   Status: AVAILABLE  Compressed: NO  Tag: TAG20240222T190344
        Handle: ctl_012jq4gg_1_1   Media: 0B2B9255
  Control File Included: Ckp SCN: 4438494      Ckp time: 22-FEB-24

win平台oracle备份

RMAN> RUN {
2>  ALLOCATE CHANNEL S1 DEVICE TYPE sbt
3>  PARMS='SBT_LIBRARY=D:\TEMP\rman_sync.dll,
4>  ENV=(
5>  OB_SERVER=www.xifenfei.com,
6>  OB_USER=root,
7>  OB_PORT=22123,
8>  OB_PATH=/tmp/,
9>  OB_PUBLIC_KEY=C:\Users\XIFENFEI\.ssh\id_rsa.pub,
10>  OB_SECRET_KEY=C:\Users\XIFENFEI\.ssh\id_rsa,
11>  OB_LOGFILE=d:\xifenfei.log)';
12>  BACKUP CURRENT CONTROLFILE FORMAT 'ctl_%U';
13>  }

分配的通道: S1
通道 S1: SID=156 设备类型=SBT_TAPE
通道S1: SBT/SSH2-SFTP

启动 backup 于 23-2月 -24
通道 S1: 正在启动全部数据文件备份集
通道 S1: 正在指定备份集内的数据文件
备份集内包括当前控制文件
通道 S1: 正在启动段 1 于 23-2月 -24
通道 S1: 已完成段 1 于 23-2月 -24
段句柄=ctl_012jt7mr_1_1 标记=TAG20240223T231642 注释=API Version 2.0,MMS Version 1.0.9.0
通道 S1: 备份集已完成, 经过时间:00:00:07
完成 backup 于 23-2月 -24
释放的通道: S1

RMAN> list backup;


备份集列表
===================


BS 关键字  类型 LV 大小       设备类型 经过时间 完成时间
------- ---- -- ---------- ----------- ------------ ----------
1       Full    9.50M      SBT_TAPE    00:00:05     23-2月 -24
        BP 关键字: 1   状态: AVAILABLE  已压缩: NO  标记: TAG20240223T231642
        句柄: ctl_012jt7mr_1_1   介质: 0B2B9255
  包括的控制文件: Ckp SCN: 14544437     Ckp 时间: 23-2月 -24
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