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- ORA-00600: internal error code, arguments: [16703], [1403], [4] 原因
- 最近遇到几起ORA-600 16703故障(tab$被清空),请引起重视
- ORA-600 2662快速恢复之Patch scn工具
- TNS-12518: TNS:listener could not hand off client connection
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标签归档:ibdata异常恢复
InnoDB: Cannot open table db/tab from the internal data dictionary of InnoDB though the .frm file for the table exists
有客户找到我说mysql无法正常使用报错如下(库名.表名 doesn’t exist):
客户确认表的frm和ibd文件均存在.通过检查mysql日志,发现大量类似异常
而且情况一样ibd和frm文件均存在,系统日志中提示:
2022-07-08T08:37:57.935514Z 1423 [Warning] InnoDB: Cannot open table 库名/表名 from the internal data dictionary of InnoDB though the .frm file for the table exists. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting.html for how to resolve the issue.
根据对mysql的认知,出现此类问题,很可能是mysql的ibdata文件出了问题,对日志进行分析,发现类似记录
2022-07-08T04:11:27.413455Z 0 [Note] /www/server/mysql/bin/mysqld (mysqld 5.7.34-log) starting as process 2144 ... 2022-07-08T04:11:27.495536Z 0 [Note] InnoDB: PUNCH HOLE support available 2022-07-08T04:11:27.495559Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2022-07-08T04:11:27.495562Z 0 [Note] InnoDB: Uses event mutexes 2022-07-08T04:11:27.495565Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier 2022-07-08T04:11:27.495568Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.11 2022-07-08T04:11:27.495571Z 0 [Note] InnoDB: Using Linux native AIO 2022-07-08T04:11:27.496130Z 0 [Note] InnoDB: Number of pools: 1 2022-07-08T04:11:27.496227Z 0 [Note] InnoDB: Using CPU crc32 instructions 2022-07-08T04:11:27.510618Z 0 [Note] InnoDB: Initializing buffer pool, total size=256M,instances=1,chunk size=128M 2022-07-08T04:11:27.520144Z 0 [Note] InnoDB: Completed initialization of buffer pool 2022-07-08T04:11:27.522095Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority(). 2022-07-08T04:11:27.532135Z 0 [Note] InnoDB: The first innodb_system data file 'ibdata1' did not exist. A new tablespace will be created! 2022-07-08T04:11:27.532259Z 0 [Note] InnoDB: Setting file '/www/server/data/ibdata1' size to 10 MB. Physically writing the file full; Please wait ... 2022-07-08T04:11:27.760116Z 0 [Note] InnoDB: File '/www/server/data/ibdata1' size is now 10 MB. 2022-07-08T04:11:27.760338Z 0 [Note] InnoDB: Setting log file /www/server/data/ib_logfile101 size to 128MB 2022-07-08T04:11:27.760414Z 0 [Note] InnoDB: Progress in MB: 100 2022-07-08T04:11:28.940355Z 0 [Note] InnoDB: Setting log file /www/server/data/ib_logfile1 size to 128 MB 2022-07-08T04:11:28.940442Z 0 [Note] InnoDB: Progress in MB: 100 2022-07-08T04:11:30.517357Z 0 [Note] InnoDB: Renaming log file /www/server/data/ib_logfile101 to /www/server/data/ib_logfile0 2022-07-08T04:11:30.517394Z 0 [Warning] InnoDB: New log files created, LSN=45790 2022-07-08T04:11:30.517401Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables 2022-07-08T04:11:30.517425Z 0 [Note] InnoDB: Setting file '/www/server/data/ibtmp1' size to 12 MB. Physically writing the file full; Please wait ... 2022-07-08T04:11:30.609146Z 0 [Note] InnoDB: File '/www/server/data/ibtmp1' size is now 12 MB. 2022-07-08T04:11:30.609236Z 0 [Note] InnoDB: Doublewrite buffer not found: creating new 2022-07-08T04:11:30.631133Z 0 [Note] InnoDB: Doublewrite buffer created 2022-07-08T04:11:31.160847Z 0 [Note] InnoDB: 96 redo rollback segment(s) found.96 redo rollback segment(s) are active. 2022-07-08T04:11:31.160860Z 0 [Note] InnoDB: 32 non-redo rollback segment(s) are active. 2022-07-08T04:11:31.160970Z 0 [Warning] InnoDB: Creating foreign key constraint system tables. 2022-07-08T04:11:31.194147Z 0 [Note] InnoDB: Foreign key constraint system tables created 2022-07-08T04:11:31.194175Z 0 [Note] InnoDB: Creating tablespace and datafile system tables. 2022-07-08T04:11:31.195079Z 0 [Note] InnoDB: Tablespace and datafile system tables created. 2022-07-08T04:11:31.195098Z 0 [Note] InnoDB: Creating sys_virtual system tables. 2022-07-08T04:11:31.195974Z 0 [Note] InnoDB: sys_virtual table created 2022-07-08T04:11:31.196099Z 0 [Note] InnoDB: Waiting for purge to start 2022-07-08T04:11:31.246167Z 0 [Note] InnoDB: 5.7.34 started; log sequence number 0 2022-07-08T04:11:31.246379Z 0 [Note] Plugin 'FEDERATED' is disabled. 2022-07-08T04:11:31.248996Z 0 [Warning] InnoDB: Cannot open table mysql/plugin from the internal data dictionary of InnoDB though the .frm file for the table exists. Please refer to http://dev.mysql.com/doc/refman/5.7/en/innodb-troubleshooting.html for how to resolve the issue. mysqld: Table 'mysql.plugin' doesn't exist
通过上述日志可以确认,数据库应该被重新初始化了,导致以前库的ibd和frm文件无法被正常访问.对于此类情况,可以参考以前类似恢复案例:frm和ibd文件数据库恢复