标签归档：KCLCHKBLK_4

RAC环境redo在各节点本地导致数据库故障恢复

发表于 2025 年 8 月 9 日 由 惜分飞

最近一个运行在win平台的rac,由于断电之后,集群两个节点均无法正常启动,客户进行了一系列尝试,结果到了ora-600 kclchkblk_4错误无法继续.
通过对数据库日志分析,回溯了故障大概的原因,启动的时候报错为:
节点1启动报错

Sun Aug 03 15:21:22 2025
alter database open
This instance was first to open
Beginning crash recovery of 2 threads
 parallel recovery started with 32 processes
Started redo scan
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_ora_7108.trc:
ORA-00314: 日志 11 (用于线程 2) 要求的 sequence# 147717 与 147541 不匹配
ORA-00312: 联机日志 11 线程 2: 'D:\REDOLOG\REDO011.LOG'
Abort recovery for domain 0
Aborting crash recovery due to error 314
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_ora_7108.trc:
ORA-00314: 日志 11 (用于线程 2) 要求的 sequence# 147717 与 147541 不匹配
ORA-00312: 联机日志 11 线程 2: 'D:\REDOLOG\REDO011.LOG'
Abort recovery for domain 0
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_ora_7108.trc:
ORA-00314: 日志 11 (用于线程 2) 要求的 sequence# 147717 与 147541 不匹配
ORA-00312: 联机日志 11 线程 2: 'D:\REDOLOG\REDO011.LOG'
ORA-314 signalled during: alter database open...

节点2启动报错

Sat Aug 02 15:45:43 2025
Successful mount of redo thread 2, with mount id 1735887907
Database mounted in Shared Mode (CLUSTER_DATABASE=TRUE)
Lost write protection disabled
Completed: ALTER DATABASE MOUNT /* db agent *//* {1:47460:124} */
ALTER DATABASE OPEN /* db agent *//* {1:47460:124} */
This instance was first to open
Beginning crash recovery of 2 threads
Sat Aug 02 15:45:49 2025
 parallel recovery started with 32 processes
Started redo scan
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl2\trace\orcl2_ora_3444.trc:
ORA-00314: ?? 1 (???? 1) ??? sequence# 67782 ? 60818 ???
ORA-00312: ???? 1 ?? 1: 'D:\REDOLOG\REDO01.LOG'
Abort recovery for domain 0
Aborting crash recovery due to error 314
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl2\trace\orcl2_ora_3444.trc:
ORA-00314: ?? 1 (???? 1) ??? sequence# 67782 ? 60818 ???
ORA-00312: ???? 1 ?? 1: 'D:\REDOLOG\REDO01.LOG'
Abort recovery for domain 0
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl2\trace\orcl2_ora_3444.trc:
ORA-00314: ?? 1 (???? 1) ??? sequence# 67782 ? 60818 ???
ORA-00312: ???? 1 ?? 1: 'D:\REDOLOG\REDO01.LOG'
ORA-314 signalled during: ALTER DATABASE OPEN /* db agent *//* {1:47460:124} */...

看到这两个报错信息得出两个结论：
1）比较明显节点1需要thead 2的 group 11 sequence为147717,但是实际group 11文件的sequence为147541；而节点2启动需要thread 1的group 1 sequence为67782，但是实际中group 1文件的sequnece为60818,这两个都相差比较多,属于非正常的情况,很可能是文件本身有问题
2）这是一套win的rac架构,理论上redo应该在共享文件系统（一般是asm中)，而这个第一感觉很可能是本地文件系统中
客户当时恢复之时查询信息截图
ORA-00314-ORA-00312

查看了两个节点的最后redo切换信息

--节点1
Sat Aug 02 10:49:31 2025
Thread 1 advanced to log sequence 67782 (LGWR switch)
  Current log# 1 seq# 67782 mem# 0: D:\REDOLOG\REDO01.LOG

--节点2（redo每组2G,节点2长时间没跑业务,之时做数据库导出操作,所以切换时间比较久远）
Sat Jul 26 16:56:42 2025
Thread 2 advanced to log sequence 147717 (LGWR switch)
  Current log# 11 seq# 147717 mem# 0: D:\REDOLOG\REDO011.LOG

并查看两个机器d:/redolog信息(客户自行resetlogs之后的,非第一现场,但是可以确认两个节点各自有一份redo文件
redo

本来这个是一个比较小的故障,只要把节点2的thread 1的redo拷贝到到节点1或者节点1的thread 2的redo拷贝到节点2,然后正常open库即可,现场恢复对rac不太熟悉,直接按照互联网上检索的处理方法,加上_allow_resetlogs_corruption然后强制拉库,结果不太幸运,拉库失败报ORA-600 kclchkblk_4错误
kclchkblk_4

Sun Aug 03 18:59:24 2025
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 21497084214
Resetting resetlogs activation ID 1543012633 (0x5bf88119)
Sun Aug 03 18:59:46 2025
Setting recovery target incarnation to 3
Sun Aug 03 18:59:46 2025
This instance was first to open
Picked broadcast on commit scheme to generate SCNs
Sun Aug 03 18:59:48 2025
Assigning activation ID 1735960667 (0x6778a85b)
Thread 1 opened at log sequence 1
  Current log# 1 seq# 1 mem# 0: D:\REDOLOG\REDO01.LOG
Successful open of redo thread 1
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Sun Aug 03 18:59:49 2025
SMON: enabling cache recovery
Instance recovery: looking for dead threads
Instance recovery: lock domain invalid but no dead threads
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_ora_8508.trc  (incident=728324):
ORA-00600: 内部错误代码, 参数: [kclchkblk_4], [5], [200595988], [5], [22247740], [], [], [], [], [], [], []
Incident details in: D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\incident\incdir_728324\orcl1_ora_8508_i728324.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Sun Aug 03 18:59:53 2025
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_ora_8508.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00600: 内部错误代码, 参数: [kclchkblk_4], [5], [200595988], [5], [22247740], [], [], [], [], [], [], []
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_ora_8508.trc:
ORA-00704: 引导程序进程失败
ORA-00704: 引导程序进程失败
ORA-00600: 内部错误代码, 参数: [kclchkblk_4], [5], [200595988], [5], [22247740], [], [], [], [], [], [], []
Error 704 happened during db open, shutting down database
USER (ospid: 8508): terminating the instance due to error 704
Sun Aug 03 18:59:54 2025
opiodr aborting process unknown ospid (9480) as a result of ORA-1092
Sun Aug 03 19:00:09 2025
Instance terminated by USER, pid = 8508
ORA-1092 signalled during: alter database open resetlogs...
opiodr aborting process unknown ospid (8508) as a result of ORA-1092

这个故障之后,客户那边无法自行恢复,让我这边介入处理,对于这个错误以前处理比较多,一般就是scn问题,通过Patch SCN小工具快速解决
QQ20250808-185918

数据库open成功之后主要报一些ORA-600 4137,ORA-600 6006等错误

Database Characterset is ZHS16GBK
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_smon_8300.trc  (incident=1176205):
ORA-00600: 内部错误代码, 参数: [4137], [1.14.2713957], [0], [0], [], [], [], [], [], [], [], []
Incident details in: D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\incident\incdir_1176205\orcl1_smon_8300_i1176205.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Fri Aug 08 19:03:14 2025
ORACLE Instance orcl1 (pid = 25) - Error 600 encountered while recovering transaction (1, 14).
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_smon_8300.trc:
ORA-00600: 内部错误代码, 参数: [4137], [1.14.2713957], [0], [0], [], [], [], [], [], [], [], []
Fri Aug 08 19:03:15 2025
ORACLE Instance orcl1 (pid = 25) - Error 600 encountered while recovering transaction (5, 19).
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_smon_8300.trc:
ORA-00600: 内部错误代码, 参数: [4137], [5.19.2318502], [0], [0], [], [], [], [], [], [], [], []
Starting background process MMON
Fri Aug 08 19:03:18 2025
MMON started with pid=29, OS id=4624
Fri Aug 08 19:03:19 2025
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_smon_8300.trc  (incident=1176207):
ORA-00600: 内部错误代码, 参数: [6006], [1], [], [], [], [], [], [], [], [], [], []
Incident details in: D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\incident\incdir_1176207\orcl1_smon_8300_i1176207.trc
Starting background process MMNL
Fri Aug 08 19:03:19 2025
MMNL started with pid=30, OS id=8344
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
ORACLE Instance orcl1 (pid = 25) - Error 600 encountered while recovering transaction (46, 28) on object 197344.
Errors in file D:\APP\ADMINISTRATOR\diag\rdbms\orcl\orcl1\trace\orcl1_smon_8300.trc:
ORA-00600: 内部错误代码, 参数: [6006], [1], [], [], [], [], [], [], [], [], [], []

通过重建undo解决该错误,数据库稳定运行,没有再crash和报明显错误,导出核心数据,完成本次恢复任务.

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又一例:ORA-600 kclchkblk_4和2662故障

发表于 2024 年 2 月 21 日 由 惜分飞

有客户恢复请求:由于未知原因导致aix环境的rac两台主机同时重启之后数据库无法正常启动,初步判断是由于写丢失导致故障（ORA-00742 ORA-00353）

Wed Feb 21 09:23:06 2024
ALTER DATABASE OPEN
This instance was first to open
Abort recovery for domain 0
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_5767246.trc:
ORA-01113: file 32 needs media recovery
ORA-01110: data file 32: '+DATA/xff/datafile/x5sys_cs.dbf'
ORA-1113 signalled during: ALTER DATABASE OPEN...
Wed Feb 21 09:23:27 2024
ALTER DATABASE RECOVER  datafile '+DATA/xff/datafile/x5sys_cs.dbf'  
Media Recovery Start
Serial Media Recovery started
WARNING! Recovering data file 32 from a fuzzy backup. It might be an online
backup taken without entering the begin backup command.
Recovery of Online Redo Log: Thread 2 Group 14 Seq 48490 Reading mem 0
  Mem# 0: +DATA/xff/onlinelog/group_14.313.1060528521
Recovery of Online Redo Log: Thread 1 Group 7 Seq 64195 Reading mem 0
  Mem# 0: +DATA/xff/onlinelog/group_7.306.1060527979
Wed Feb 21 09:24:10 2024
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_5767246.trc:
ORA-00742: Log read detects lost write in thread %d sequence %d block %d
ORA-00334: archived log: '+DATA/xff/onlinelog/group_14.313.1060528521'
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_5767246.trc  (incident=336478):
ORA-00353: log corruption near block 139727 change 26346459680 time 02/20/2024 20:13:50
ORA-00312: online log 14 thread 2: '+DATA/xff/onlinelog/group_14.313.1060528521'

尝试屏蔽一致性强制拉库后数据库报ORA-600 kclchkblk_4
参考:ora-600 2662和ora-600 kclchkblk_4恢复、redo异常 ORA-600 kclchkblk_4 故障恢复

Wed Feb 21 09:55:26 2024
SMON: enabling cache recovery
Wed Feb 21 09:55:26 2024
Redo thread 2 internally disabled at seq 5 (CKPT)
Archived Log entry 112707 added for thread 2 sequence 4 ID 0xffffffffe144183b dest 1:
ARC0: Archiving disabled thread 2 sequence 5
Archived Log entry 112708 added for thread 2 sequence 5 ID 0xffffffffe144183b dest 1:
Wed Feb 21 09:55:28 2024
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_6423264.trc  (incident=360479):
ORA-00600: internal error code, arguments: [kclchkblk_4], [6], [576721660], [6], [576702892]
Incident details in: /oracle/db/diag/rdbms/xff/xff1/incident/incdir_360479/xff1_ora_6423264_i360479.trc
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Thread 1 advanced to log sequence 3 (LGWR switch)
  Current log# 7 seq# 3 mem# 0: +DATA/xff/onlinelog/group_7.306.1161510375
Archived Log entry 112709 added for thread 1 sequence 2 ID 0xffffffffe144183b dest 1:
Wed Feb 21 09:55:31 2024
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_6423264.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [kclchkblk_4], [6], [576721660], [6], [576702892]
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_6423264.trc:
ORA-00704: bootstrap process failure
ORA-00704: bootstrap process failure
ORA-00600: internal error code, arguments: [kclchkblk_4], [6], [576721660], [6], [576702892]

后续处理中出现和这个错误类似的ORA-600 2662错误

Wed Feb 21 15:37:35 2024
SMON: enabling cache recovery
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_6357664.trc  (incident=432423):
ORA-00600: internal error code, arguments: [2662], [6], [576742938], [6], [576834283], [12583104]
Incident details in: /oracle/db/diag/rdbms/xff/xff1/incident/incdir_432423/xff1_ora_6357664_i432423.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 /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_6357664.trc:
ORA-00600: internal error code, arguments: [2662], [6], [576742938], [6], [576834283], [12583104], [], [], [], [], [], []
Errors in file /oracle/db/diag/rdbms/xff/xff1/trace/xff1_ora_6357664.trc:
ORA-00600: internal error code, arguments: [2662], [6], [576742938], [6], [576834283], [12583104], [], [], [], [], [], []
Error 600 happened during db open, shutting down database
USER (ospid: 6357664): terminating the instance due to error 600
Instance terminated by USER, pid = 6357664

通过对oracle scn进行修改,数据库open成功

SQL> recover database;
Media recovery complete.
SQL> 
SQL> 
SQL> 
SQL> oradebug setmypid
Statement processed.
SQL> oradebug DUMPvar SGA kcsgscn_
kcslf kcsgscn_ [700000000019B70, 700000000019BA0) = 00000000 00000000 00000000 00000000 
SQL> oradebug poke 
BEFORE: [700000000019B70, 700000000019B78) = 00000000 00000000
AFTER:  [700000000019B70, 700000000019B78) = 00000006 22710D2B
SQL> oradebug DUMPvar SGA kcsgscn_ 
kcslf kcsgscn_ [700000000019B70, 700000000019BA0) = 00000006 22710D2B 00000000 00000000 
SQL> alter database open;

Database altered.

后续检查发现obj$中的index异常（ORA-08102: index key not found, obj# 39）
类似文章:通过bbed修改obj$中dataobj$重现I_OBJ4索引报ORA-08102错误

SQL> truncate CLUSTER "SYS"."SMON_SCN_TO_TIME_AUX";

truncate CLUSTER "SYS"."SMON_SCN_TO_TIME_AUX"
                       *
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-08102: index key not found, obj# 39, file 1, block 967206 (2)

SQL> SQL> select object_name,object_type from dba_objects where object_id=39;

OBJECT_NAME                    OBJECT_TYPE
------------------------------ -------------------
I_OBJ4                         INDEX

对于此类问题使用非常规方法把obj$字典表进行重建（需要注意undo需要为自动管理方式,temp不能为空）,参考:
bootstrap$核心index(I_OBJ1,I_USER1,I_FILE#_BLOCK#,I_IND1,I_TS#,I_CDEF1等)异常恢复—ORA-00701错误解决

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ora-600 2662和ora-600 kclchkblk_4恢复

发表于 2021 年 4 月 29 日 由 惜分飞

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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