导读

　　晚上捣鼓数据库的时候，将mysql服务停止下，然后就死活启动不起来，这下可把我急坏了，自己数据库上有好多自己的个人项目，错误信息如下

ERROR! The server quit without updating PID file (/usr/local/mysql/data/chenyanbindeMacBook-Pro.local.pid)

2020-12-14T15:53:06.6NZ mysqld_safe Logging to \'/usr/local/mysql/data/chenyanbindeMacBook-Pro.local.err\'.2020-12-14T15:53:06.6NZ mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data2020-12-14T15:53:06.507326Z 0 [Note] --secure-file-priv is set to NULL. Operations related to importing and exporting data are disabled2020-12-14T15:53:06.507468Z 0 [Note] /usr/local/mysql/bin/mysqld (mysqld 5.7.28) starting as process 5613 ...2020-12-14T15:53:06.511336Z 0 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins2020-12-14T15:53:06.511358Z 0 [Note] InnoDB: Uses event mutexes2020-12-14T15:53:06.511367Z 0 [Note] InnoDB: GCC builtin __atomic_thread_fence() is used for memory barrier2020-12-14T15:53:06.511374Z 0 [Note] InnoDB: Compressed tables use zlib 1.2.112020-12-14T15:53:06.511620Z 0 [Note] InnoDB: Number of pools: 12020-12-14T15:53:06.511725Z 0 [Note] InnoDB: Using CPU crc32 instructions2020-12-14T15:53:06.512845Z 0 [Note] InnoDB: Initializing buffer pool, total size = 128M, instances = 1, chunk size = 128M2020-12-14T15:53:06.521779Z 0 [Note] InnoDB: Completed initialization of buffer pool2020-12-14T15:53:06.534536Z 0 [ERROR] InnoDB: The innodb_system data file \'ibdata1\' must be writable2020-12-14T15:53:06.534618Z 0 [ERROR] InnoDB: The innodb_system data file \'ibdata1\' must be writable2020-12-14T15:53:06.534652Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error2020-12-14T15:53:06.843208Z 0 [ERROR] Plugin \'InnoDB\' init function returned error.2020-12-14T15:53:06.843285Z 0 [ERROR] Plugin \'InnoDB\' registration as a STORAGE ENGINE failed.2020-12-14T15:53:06.843315Z 0 [ERROR] Failed to initialize builtin plugins.2020-12-14T15:53:06.843333Z 0 [ERROR] Aborting2020-12-14T15:53:06.843359Z 0 [Note] Binlog end2020-12-14T15:53:06.843512Z 0 [Note] Shutting down plugin \'CSV\'2020-12-14T15:53:06.843810Z 0 [Note] /usr/local/mysql/bin/mysqld: Shutdown complete