标签归档:oradebug ORA-32519

ora-600 2662和ora-600 kclchkblk_4恢复

这两天连续处理两个case,一个是12.1.0.2版本数据库屏蔽一致性,强制open之后,报ORA-600 2662故障
20210429220218


这个错误本身是一个非常常见的错误,直接推scn即可解决,但是问题是12.1.0.2版本,oracle不允许以前常规的操作方法,就连oradebug都报错oradebug poke ORA-32521/ORA-32519故障解决,而且可以是rac环境,bbed修改文件头也相当麻烦,最后我们使用patch方法轻松解决

另外一例是11.2.0.4版本,强制open库报ora-600 kclchkblk_4

Wed Apr 28 21:25:38 2021
SMON: enabling cache recovery
Instance recovery: looking for dead threads
Instance recovery: lock domain invalid but no dead threads
Errors in file /u01/app/oracle/diag/rdbms/dc/dc1/trace/dc1_ora_27832.trc  (incident=564430):
ORA-00600: internal error code, arguments: [kclchkblk_4], [2959], [904341694], [2959], [904131717], []
Incident details in: /u01/app/oracle/diag/rdbms/dc/dc1/incident/incdir_564430/dc1_ora_27832_i564430.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Errors in file /u01/app/oracle/diag/rdbms/dc/dc1/trace/dc1_ora_27832.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [kclchkblk_4], [2959], [904341694], [2959], [904131717], []
Errors in file /u01/app/oracle/diag/rdbms/dc/dc1/trace/dc1_ora_27832.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [kclchkblk_4], [2959], [904341694], [2959], [904131717], []
Error 704 happened during db open, shutting down database
USER (ospid: 27832): terminating the instance due to error 704
Instance terminated by USER, pid = 27832
ORA-1092 signalled during: alter database open resetlogs...

这个比较简单,参考redo异常 ORA-600 kclchkblk_4 故障恢复.

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oradebug poke ORA-32521/ORA-32519故障解决

最近有不少朋友咨询12.1.0.2及其以后的版本使用oradebug去修改scn失败,这里做了一个测试正常情况下确实无法修改(oradebug poke报 ORA-32519 或者 ORA-32521) ,这里进行了一系列修改测试最后修改成功.
数据库版本

SQL> select * from v$version;

BANNER                                                                               CON_ID
-------------------------------------------------------------------------------- ----------
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production              0
PL/SQL Release 12.1.0.2.0 - Production                                                    0
CORE    12.1.0.2.0      Production                                                        0
TNS for 64-bit Windows: Version 12.1.0.2.0 - Production                                   0
NLSRTL Version 12.1.0.2.0 - Production                                                    0

oradebug poke测试

SQL> oradebug setmypid
已处理的语句
SQL> oradebug DUMPvar SGA kcsgscn_
kcslf kcsgscn_ [14C8D6270, 14C8D62A0) = 009EA333 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
 00000000 4C8D5CF0 00000001
SQL> oradebug poke 0x14C8D6274 4 0x00000001
ORA-32521: 对 ORADEBUG 命令  进行语法分析时出错

--或者该提示
SQL> oradebug setmypid
已处理的语句
SQL> oradebug DUMPvar SGA kcsgscn_
kcslf kcsgscn_ [14C8D6270, 14C8D62A0) = 009EAE3D 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
 00000000 4C8D5CF0 00000001
SQL> oradebug poke 0x14C8D6274 4 0x0000000a
ORA-32519: 权限不足, 无法执行 ORADEBUG 命令: execution of ORADEBUG commands is disabled for this instance

通过测试确定oradebug正常情况无法执行poke,不是提示ORA-32521就是提示ORA-32519错误导致scn无法修改.

通过一些修改之后oradebug 修改scn

SQL> select dbid, name,open_mode,
  2         created created,
  3         open_mode, log_mode,
  4         checkpoint_change# as checkpoint_change#,
  5         controlfile_type ctl_type,
  6         controlfile_created ctl_created,
  7         controlfile_change# as ctl_change#,
  8         controlfile_time ctl_time,
  9         resetlogs_change# as resetlogs_change#,
 10         resetlogs_time resetlogs_time
 11  from v$database;

      DBID NAME                                                 OPEN_MODE            CREATED        OPEN_MODE
 LOG_MODE
---------- ---------------------------------------------------- -------------------- -------------- ------------
 ------------
CHECKPOINT_CHANGE# CTL_TYP CTL_CREATED    CTL_CHANGE# CTL_TIME       RESETLOGS_CHANGE# RESETLOGS_TIME
------------------ ------- -------------- ----------- -------------- ----------------- --------------
1504692401 XIFENFEI                                             READ WRITE           16-8月 -15     READ WRITE
 ARCHIVELOG
          10407853 CURRENT 16-8月 -15        10408361 07-7月 -16                     1 16-8月 -15


SQL> select con_id,file#,checkpoint_change# from v$datafile_header;

    CON_ID      FILE# CHECKPOINT_CHANGE#
---------- ---------- ------------------
         1          1           10407853
         2          2            9457324
         1          3           10407853
         2          4            9457324
         1          5           10407853
         1          6           10407853
         3          7           10407853
         3          8           10407853
         3          9           10407853
         4         10            9559964
         4         11            9559964
         4         12            9559964
         3         13           10407853

已选择 13 行。

SQL> shutdown abort;
ORACLE 例程已经关闭。
SQL> startup
ORACLE 例程已经启动。

Total System Global Area 3221225472 bytes
Fixed Size                  3837232 bytes
Variable Size             838861520 bytes
Database Buffers         2365587456 bytes
Redo Buffers               12939264 bytes
数据库装载完毕。
SQL> oradebug setmypid
已处理的语句
SQL> oradebug DUMPvar SGA kcsgscn_
kcslf kcsgscn_ [14BE16270, 14BE162A0) = 009ED5C6 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
 00000000 4BE15CF0 00000001
SQL> oradebug poke 0x14BE16274 4 0x0001
BEFORE: [14BE16274, 14BE16276) = 0000
AFTER: [14BE16274, 14BE16276) = 0001
SQL> alter database open;

数据库已更改。

SQL> select dbid, name,open_mode,
  2         created created,
  3         open_mode, log_mode,
  4         checkpoint_change# as checkpoint_change#,
  5         controlfile_type ctl_type,
  6         controlfile_created ctl_created,
  7         controlfile_change# as ctl_change#,
  8         controlfile_time ctl_time,
  9         resetlogs_change# as resetlogs_change#,
 10         resetlogs_time resetlogs_time
 11  from v$database;

      DBID NAME                                                 OPEN_MODE            CREATED        OPEN_MODE
 LOG_MODE
---------- ---------------------------------------------------- -------------------- -------------- -----------
 ------------
CHECKPOINT_CHANGE# CTL_TYP CTL_CREATED    CTL_CHANGE# CTL_TIME       RESETLOGS_CHANGE# RESETLOGS_TIME
------------------ ------- -------------- ----------- -------------- ----------------- --------------
1504692401 XIFENFEI                                             READ WRITE           16-8月 -15     READ WRITE
 ARCHIVELOG
        4305478053 CURRENT 16-8月 -15      4305478245 07-7月 -16                     1 16-8月 -15



SQL> select con_id,file#,checkpoint_change# from v$datafile_header;

    CON_ID      FILE# CHECKPOINT_CHANGE#
---------- ---------- ------------------
         1          1         4305478053
         2          2            9457324
         1          3         4305478053
         2          4            9457324
         1          5         4305478053
         1          6         4305478053
         3          7         4305478053
         3          8         4305478053
         3          9         4305478053
         4         10            9559964
         4         11            9559964
         4         12            9559964
         3         13         4305478053

已选择 13 行。

SQL> select con_id,file#,checkpoint_change# from v$datafile;

    CON_ID      FILE# CHECKPOINT_CHANGE#
---------- ---------- ------------------
         1          1         4305478053
         2          2            9457324
         1          3         4305478053
         2          4            9457324
         1          5         4305478053
         1          6         4305478053
         3          7         4305478053
         3          8         4305478053
         3          9         4305478053
         4         10            9559964
         4         11            9559964
         4         12            9559964
         3         13         4305478053

已选择 13 行。

通过上述测试证明scn已经被完美修改.证明我们已经具备了不使用bbed的情况下推进12.1.0.2版本的scn问题,为12c的一系列需要推scn的恢复提供完美技术支持.

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