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Patch SCN工具for Linux

发表于 2024 年 6 月 29 日由惜分飞

前几年开发了图形化的win平台的patch scn工具:一键修改Oracle SCN工具升级(patch scn)

最近基于linux平台开发了命令行方式的Patch scn工具,大概使用如下:
1. 数据库必须处于mount状态才能修改scn

[oracle@iZbp11c0qyuuo1gr7j98upZ tmp]$ ./Patch_SCN   328 247884300
ERROR:Oracle Database must be in Mount state in order to modify SCN

2. Patch_SCN参数提示

[oracle@iZbp11c0qyuuo1gr7j98upZ tmp]$ ./Patch_SCN   
Use Parameters: PID  SCN(10)  [ADDR(16,don't 0x)]

3.修改SCN 具体操作

1)启动数据库到mount状态
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.

2)查询数据库当前scn
SQL> select CHECKPOINT_CHANGE# from v$database;

CHECKPOINT_CHANGE#
------------------
           2478843

3)新会话中修改数据库scn
[oracle@iZbp11c0qyuuo1gr7j98upZ tmp]$ ./Patch_SCN   328 247884300
Please press ENTER to continue...
Modify the Oracle SCN value to:EC66A0C:247884300

4)启动数据库并查询scn
SQL> ALTER DATABASE OPEN;

Database altered.

SQL>  select CHECKPOINT_CHANGE# from v$database;

CHECKPOINT_CHANGE#
------------------
         247884301 （比修改scn稍微大由于数据库已经启动会自动增加scn值）

这个小工具直接通过内存地址修改scn,绕过Oracle在一些版本中的oradebug的限制:oradebug poke ORA-32521/ORA-32519故障解决
Patch_SCN下载:Patch_SCN下载
Patch_SCN使用说明:Patch_SCN使用说明

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Patch SCN一键解决ORA-600 2662故障

发表于 2023 年 8 月 13 日由惜分飞

客户强制重启库之后,数据库启动报ORA-600 2037,ORA-745 kcbs_reset_pool/kcbzre1等错误

Wed Aug 09 13:25:38 2023
alter database mount exclusive
Successful mount of redo thread 1, with mount id 1672229586
Database mounted in Exclusive Mode
Lost write protection disabled
Completed: alter database mount exclusive
alter database open
Beginning crash recovery of 1 threads
 parallel recovery started with 15 processes
Started redo scan
Completed redo scan
 read 84074 KB redo, 37037 data blocks need recovery
Wed Aug 09 13:25:49 2023
Started redo application at
 Thread 1: logseq 998542, block 61480
Recovery of Online Redo Log: Thread 1 Group 1 Seq 998542 Reading mem 0
  Mem# 0: E:\APP\ADMINISTRATOR\ORADATA\ORCL\REDO01.LOG
Recovery of Online Redo Log: Thread 1 Group 2 Seq 998543 Reading mem 0
  Mem# 0: E:\APP\ADMINISTRATOR\ORADATA\ORCL\REDO02.LOG
Wed Aug 09 13:25:49 2023
Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0x1350B61, kcbs_reset_pool()+3135]
Wed Aug 09 13:25:49 2023
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_p011_2508.trc  (incident=1203440):
ORA-00600: internal error code, arguments: [2037], [1981399269], [3236233216], [37], [193], [11], [2842064409], [100728832], [], [], [], 
Wed Aug 09 13:25:49 2023
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_p002_2472.trc  (incident=1203368):
ORA-00600: internal error code, arguments: [2037], [1882432643], [2760048640], [77], [31], [11], [2915397683], [100731648], [], [], [], 
ERROR: Unable to normalize symbol name for the following short stack (at offset 199):
dbgexProcessError()+193<-dbgeExecuteForError()+65<-dbgePostErrorKGE()+1726<-dbkePostKGE_kgsf()+75<-kgeade()+560<-kgerev()+125
<-kgerec5()+60<-sss_xcpt_EvalFilterEx()+1869<-sss_xcpt_EvalFilter()+174<-.1.4_5+59<-00007FF85F46C92F<-00007FF85F47D82D
<-00007FF85F42916B<-00007FF85F47C9EE<-kcbs_reset_pool()+3135<-kcbs_resize_pool()+105<-kcbw_deferred_complete()+87
<-kmgs_deferred_initialize()+674<-ksbabs()+1086<-ksbrdp()+1286<-opirip()+853<-opidrv()+909<-sou2o()+98
<-opimai_real()+299<-opimai()+191<-BackgroundThreadStart()+693<-00007FF85DBA16AD<-00007FF85F454629
Wed Aug 09 13:25:49 2023
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_mman_1192.trc  (incident=1203256):
ORA-07445: exception encountered:core dump [kcbs_reset_pool()+3135] [ACCESS_VIOLATION] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0x1350B61] [UNABLE_TO_READ]
Incident details in: e:\app\administrator\diag\rdbms\orcl\orcl\incident\incdir_1203256\orcl_mman_1192_i1203256.trc
Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0xECE0BF, kcbzre1()+2811]
Wed Aug 09 13:25:49 2023
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_p004_2480.trc  (incident=1203384):
ORA-00600: internal error code, arguments: [2037], [12693108], [2926837760], [72], [217], [11], [2837053633], [33622528], [], [], [], []
Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0xECE0BF, kcbzre1()+2811]
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_p007_2492.trc  (incident=1203409):
ORA-07445: exception encountered:core dump [kcbzre1()+2811] [ACCESS_VIOLATION] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0xECE0BF] [UNABLE_TO_READ]
ORA-00600: internal error code, arguments: [2037], [12693108], [2926837760], [72], [217], [11], [2837053633], [33622528], [], [], [], []
Incident details in: e:\app\administrator\diag\rdbms\orcl\orcl\incident\incdir_1203385\orcl_p004_2480_i1203385.trc
Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0xECE0BF, kcbzre1()+2811]
Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0xECE0BF, kcbzre1()+2811]
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_p001_2468.trc  (incident=1203361):
ORA-07445: exception encountered: core dump [kcbzre1()+2811] [ACCESS_VIOLATION] [ADDR:0xFFFFFFFFFFFFFFFF] [PC:0xECE0BF] [UNABLE_TO_READ] 
ORA-00600: internal error code, arguments: [2037], [130229293], [606928896], [227], [99], [11], [4149544899], [100740356], [], [], [],

屏蔽数据库一致性,强制拉库报ORA-600 2662错误

Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
SMON: enabling cache recovery
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_2076.trc  (incident=1315352):
ORA-00600: 内部错误代码, 参数: [2662], [11], [1088067894], [11], [1088145382], [12583040], [], [], [], [], [], []
Incident details in: e:\app\administrator\diag\rdbms\orcl\orcl\incident\incdir_1315352\orcl_ora_2076_i1315352.trc
Trace dumping is performing id=[cdmp_20230809170852]
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_2076.trc:
ORA-00600: 内部错误代码, 参数: [2662], [11], [1088067894], [11], [1088145382], [12583040], [], [], [], [], [], []
Errors in file e:\app\administrator\diag\rdbms\orcl\orcl\trace\orcl_ora_2076.trc:
ORA-00600: 内部错误代码, 参数: [2662], [11], [1088067894], [11], [1088145382], [12583040], [], [], [], [], [], []
Error 600 happened during db open, shutting down database
USER (ospid: 2076): terminating the instance due to error 600
Instance terminated by USER, pid = 2076
ORA-1092 signalled during: ALTER DATABASE OPEN...

这种ORA-600 2662的错误比较常见,通过Patch SCN工具一键式解决,参考以前恢复案例：
Patch SCN工具快速解决ORA-600 2662问题