Setting file ‘ibtmp1‘ size to 12 MB. Physically writing the file full;

这是一段关于MySQL数据库启动过程的日志记录。日志显示了InnoDB引擎的详细状态,包括使用了event mutexes,压缩表使用了zlib1.2.11,初始化了16M大小的缓冲池,创建了共享表空间用于临时表,并完成了其他关键设置。此外,还提供了在控制面板中修复数据库的命令行方法。

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2022-04-19 17:48:20 0 [Note] InnoDB: Uses event mutexes
2022-04-19 17:48:20 0 [Note] InnoDB: Compressed tables use zlib 1.2.11
2022-04-19 17:48:20 0 [Note] InnoDB: Number of pools: 1
2022-04-19 17:48:20 0 [Note] InnoDB: Using SSE2 crc32 instructions
2022-04-19 17:48:20 0 [Note] InnoDB: Initializing buffer pool, total size = 16M, instances = 1, chunk size = 16M
2022-04-19 17:48:20 0 [Note] InnoDB: Completed initialization of buffer pool
2022-04-19 17:48:20 0 [Note] InnoDB: 128 out of 128 rollback segments are active.
2022-04-19 17:48:20 0 [Note] InnoDB: Creating shared tablespace for temporary tables
2022-04-19 17:48:20 0 [Note] InnoDB:
2022-04-19 17:48:20 0 [Note] InnoDB: File 'C:\Programs\xampp\mysql\data\ibtmp1' size is now 12 MB.
2022-04-19 17:48:20 0 [Note] InnoDB: Waiting for purge to start
2022-04-19 17:48:20 0 [Note] InnoDB: 10.4.22 started; log sequence number 64561191; transaction id 22574
2022-04-19 17:48:20 0 [Note] InnoDB: Loading buffer pool(s) from C:\Programs\xampp\mysql\data\ib_buffer_pool
2022-04-19 17:48:20 0 [Note] Plugin 'FEEDBACK' is disabled.
2022-04-19 17:48:20 0 [Note] Server socket created on IP: '::'.
 

 

 

解决方案

 

 

This one helped for me:

Open shell from from control panel and start mysql with this command:

mysqld –-console –-skip-grant-tables –-skip-external-locking

Open another shell from control panel and repair database with this command:

mysqlcheck -r --databases mysql --use-frm

Stop mysql, close shells and restart mysql normally.

2025-03-10T06:43:37.165038Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details). 2025-03-10T06:43:37.165092Z 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled 2025-03-10T06:43:37.165104Z 0 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.7.18) starting as process 26836 ... 2025-03-10T06:43:37.169695Z 0 [Note] InnoDB: PUNCH HOLE support not available 2025-03-10T06:43:37.169704Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins 2025-03-10T06:43:37.169706Z 0 [Note] InnoDB: Uses event mutexes 2025-03-10T06:43:37.169708Z 0 [Note] InnoDB: GCC builtin __sync_synchronize() is used for memory barrier 2025-03-10T06:43:37.169709Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.3 2025-03-10T06:43:37.169711Z 0 [Note] InnoDB: Using Linux native AIO 2025-03-10T06:43:37.169831Z 0 [Note] InnoDB: Number of pools: 1 2025-03-10T06:43:37.169878Z 0 [Note] InnoDB: Using CPU crc32 instructions 2025-03-10T06:43:37.170938Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M 2025-03-10T06:43:37.178293Z 0 [Note] InnoDB: Completed initialization of buffer pool 2025-03-10T06:43:37.179917Z 0 [Note] InnoDB: If the mysqld execution user is authorized, page cleaner thread priority can be changed. See the man page of setpriority(). 2025-03-10T06:43:37.191665Z 0 [Note] InnoDB: Highest supported file format is Barracuda. 2025-03-10T06:43:37.195822Z 0 [Note] InnoDB: Creating shared tablespace for temporary tables 2025-03-10T06:43:37.195863Z 0 [Note] InnoDB: Setting file './ibtmp1' size to 12 MB. Physically writing the file full; Please wait ... 2025-03-10T06:43:37.209862Z 0 [Note] InnoDB: File './ibtmp1' size is now 12 MB. 2025-03-10T06:43:37.210297Z 0 [Note] InnoDB: 96 redo rollback segment(s) found. 96 redo rollback segment(s) are active. 2025-03-10T06:43:37.210301Z 0 [Note] InnoDB: 32 n
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