InnoDB: ./ib_logfile0 can't be opened in read-write mode.

本文介绍了在MySQL数据库恢复过程中遇到InnoDB日志文件无法以读写模式打开的问题及解决方案。通过关闭数据库服务、移除特定日志文件并重启服务的方法成功解决了该问题。
问题介绍:从一个备份恢复到一个新的实例上面,启动mysql的 时候报如下错

2018-02-28T02:38:00.618787Z 0 [ERROR] InnoDB: ./ib_logfile0 can't be opened in read-write mode.
2018-02-28T02:38:00.618805Z 0 [ERROR] InnoDB: Plugin initialization aborted with error Generic error
2018-02-28T02:38:01.219287Z 0 [ERROR] Plugin 'InnoDB' init function returned error.
2018-02-28T02:38:01.219316Z 0 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2018-02-28T02:38:01.219323Z 0 [ERROR] Failed to initialize plugins.
2018-02-28T02:38:01.219332Z 0 [ERROR] Aborting

2018-02-28T02:38:01.219340Z 0 [Note] Binlog end
2018-02-28T02:38:01.219885Z 0 [Note] mysqld: Shutdown complete


原因:因为是之前使用过的数据库,现在需要重新部署,就要清空log文件。

解决方法:
1、关闭mysql数据库
2、进入mysql的data目录,删除以下3个文件:ib_logfile0和 ib_logfile1 ib_logfile2


[root@localhost data]# mv ib_logfile0 ib_logfile0.bak
[root@localhost data]# mv ib_logfile1 ib_logfile1.bak
[root@localhost data]# mv ib_logfile2 ib_logfile2.bak


3、重新启动mysql


2025-06-19 13:54:33 10592 [Note] C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe: Normal shutdown 2025-06-19 13:54:33 10592 [Note] Giving 15 client threads a chance to die gracefully 2025-06-19 13:54:33 10592 [Note] Event Scheduler: Killing the scheduler thread, thread id 116 2025-06-19 13:54:33 10592 [Note] Event Scheduler: Waiting for the scheduler thread to reply 2025-06-19 13:54:33 10592 [Note] Event Scheduler: Stopped 2025-06-19 13:54:33 10592 [Note] Event Scheduler: Purging the queue. 2 events 2025-06-19 13:54:33 10592 [Note] Shutting down slave threads 2025-06-19 13:54:35 10592 [Note] Forcefully disconnecting 3 remaining clients 2025-06-19 13:54:35 10592 [Warning] C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe: Forcing close of thread 35 user: 'wcs' 2025-06-19 13:54:35 10592 [Warning] C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe: Forcing close of thread 8 user: 'wcs' 2025-06-19 13:54:35 10592 [Warning] C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe: Forcing close of thread 3729 user: 'wcs' 2025-06-19 13:54:35 10592 [Note] Binlog end 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'partition' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_FIELDS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_INDEXES' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_SYS_TABLES' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_FT_CONFIG' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_FT_DELETED' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_METRICS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_CMPMEM' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_CMP_RESET' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_CMP' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_LOCK_WAITS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_LOCKS' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'INNODB_TRX' 2025-06-19 13:54:35 10592 [Note] Shutting down plugin 'InnoDB' 2025-06-19 13:54:35 10592 [Note] InnoDB: FTS optimize thread exiting. 2025-06-19 13:54:35 10592 [Note] InnoDB: Starting shutdown... 2025-06-19 13:54:37 10592 [Note] InnoDB: Shutdown completed; log sequence number 31950984072 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'BLACKHOLE' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'ARCHIVE' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'MRG_MYISAM' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'MyISAM' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'MEMORY' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'CSV' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'sha256_password' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'mysql_old_password' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'mysql_native_password' 2025-06-19 13:54:37 10592 [Note] Shutting down plugin 'binlog' 2025-06-19 13:54:37 10592 [Note] C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe: Shutdown complete 2025-06-19 13:54:38 3896 [Note] Plugin 'FEDERATED' is disabled. 2025-06-19 13:54:38 289c InnoDB: Warning: Using innodb_additional_mem_pool_size is DEPRECATED. This option may be removed in future releases, together with the option innodb_use_sys_malloc and with the InnoDB's internal memory allocator. 2025-06-19 13:54:38 3896 [Note] InnoDB: Using atomics to ref count buffer pool pages 2025-06-19 13:54:38 3896 [Note] InnoDB: The InnoDB memory heap is disabled 2025-06-19 13:54:38 3896 [Note] InnoDB: Mutexes and rw_locks use Windows interlocked functions 2025-06-19 13:54:38 3896 [Note] InnoDB: Memory barrier is not used 2025-06-19 13:54:38 3896 [Note] InnoDB: Compressed tables use zlib 1.2.3 2025-06-19 13:54:38 3896 [Note] InnoDB: Not using CPU crc32 instructions 2025-06-19 13:54:38 3896 [Note] InnoDB: Initializing buffer pool, size = 8.0G 2025-06-19 13:54:38 3896 [Note] InnoDB: Completed initialization of buffer pool 2025-06-19 13:54:38 3896 [Note] InnoDB: Highest supported file format is Barracuda. 2025-06-19 13:54:39 3896 [Note] InnoDB: 128 rollback segment(s) are active. 2025-06-19 13:54:39 3896 [Note] InnoDB: Waiting for purge to start 2025-06-19 13:54:39 3896 [Note] InnoDB: 5.6.21 started; log sequence number 31950984072 2025-06-19 13:54:39 3896 [Note] Server hostname (bind-address): '*'; port: 3306 2025-06-19 13:54:39 3896 [Note] IPv6 is available. 2025-06-19 13:54:39 3896 [Note] - '::' resolves to '::'; 2025-06-19 13:54:39 3896 [Note] Server socket created on IP: '::'. 2025-06-19 13:54:39 3896 [Warning] InnoDB: Cannot open table mysql/slave_master_info from the internal data dictionary of InnoDB though the .frm file for the table exists. See http://dev.mysql.com/doc/refman/5.6/en/innodb-troubleshooting.html for how you can resolve the problem. 2025-06-19 13:54:39 3896 [Warning] Info table is not ready to be used. Table 'mysql.slave_master_info' cannot be opened. 2025-06-19 13:54:39 3896 [Warning] InnoDB: Cannot open table mysql/slave_worker_info from the internal data dictionary of InnoDB though the .frm file for the table exists. See http://dev.mysql.com/doc/refman/5.6/en/innodb-troubleshooting.html for how you can resolve the problem. 2025-06-19 13:54:39 3896 [Warning] InnoDB: Cannot open table mysql/slave_relay_log_info from the internal data dictionary of InnoDB though the .frm file for the table exists. See http://dev.mysql.com/doc/refman/5.6/en/innodb-troubleshooting.html for how you can resolve the problem. 2025-06-19 13:54:39 3896 [Warning] Info table is not ready to be used. Table 'mysql.slave_relay_log_info' cannot be opened. 2025-06-19 13:54:39 3896 [Note] Event Scheduler: Loaded 2 events 2025-06-19 13:54:39 3896 [Note] C:\Program Files\MySQL\MySQL Server 5.6\bin\mysqld.exe: ready for connections. Version: '5.6.21-log' socket: '' port: 3306 MySQL Community Server (GPL) 2025-06-19 13:54:39 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.22'. 2025-06-19 13:54:39 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.22'. 2025-06-19 13:54:39 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:39 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:39 3896 [Note] - fe80::659c:c088:9d63:4346%17 2025-06-19 13:54:39 3896 [Note] - fe80::659c:c088:9d63:4346%17 2025-06-19 13:54:39 3896 [Note] - 11.1.85.24 2025-06-19 13:54:39 3896 [Note] - 169.254.119.0 2025-06-19 13:54:39 26c InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 26c2025-06-19 13:54:39 2a90 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 2a90 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedercameradata" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedercameradata" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:39 2cb0 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 2cb0 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."alreadysortinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:39 2028 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 20282025-06-19 13:54:39 249c InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 249c InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."alreadysortinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."alreadysortinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:39 1c84 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 1c84 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."errorrecord" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:39 808 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:39 808 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."systemlog" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:41 2d04 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:41 2d04 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."devicestate_monitorinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:41 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.31'. 2025-06-19 13:54:41 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:41 3896 [Note] - fe80::e985:a0f1:2751:eada%17 2025-06-19 13:54:41 3896 [Note] - 169.254.170.71 2025-06-19 13:54:42 24b8 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:42 24b8 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."userinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:42 3896 [Warning] Hostname 'DESKTOP-1LL2I5F' does not resolve to '11.1.85.33'. 2025-06-19 13:54:42 3896 [Note] Hostname 'DESKTOP-1LL2I5F' has the following IP addresses: 2025-06-19 13:54:42 3896 [Note] - fe80::7082:fd95:7ec0:bcc8%17 2025-06-19 13:54:42 3896 [Note] - 169.254.255.9 2025-06-19 13:54:42 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.26'. 2025-06-19 13:54:42 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:42 3896 [Note] - fe80::daa7:903b:6a3c:c735%17 2025-06-19 13:54:42 3896 [Note] - 11.1.85.31 2025-06-19 13:54:42 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.22'. 2025-06-19 13:54:42 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:42 3896 [Note] - fe80::659c:c088:9d63:4346%17 2025-06-19 13:54:42 3896 [Note] - 11.1.85.37 2025-06-19 13:54:43 808 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:43 808 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."portcode_timing" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:43 25a0 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:43 25a0 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."helpmanual" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:45 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.30'. 2025-06-19 13:54:45 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:45 3896 [Note] - fe80::6b84:3a08:e1d0:e750%17 2025-06-19 13:54:45 3896 [Note] - 11.1.85.31 2025-06-19 13:54:45 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.24'. 2025-06-19 13:54:45 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:45 3896 [Note] - fe80::daa7:903b:6a3c:c735%17 2025-06-19 13:54:45 3896 [Note] - 11.1.85.28 2025-06-19 13:54:47 3896 [Warning] Hostname 'DESKTOP-S1Q82IV' does not resolve to '11.1.85.27'. 2025-06-19 13:54:47 3896 [Note] Hostname 'DESKTOP-S1Q82IV' has the following IP addresses: 2025-06-19 13:54:47 3896 [Note] - fe80::3711:88ce:2316:8596%17 2025-06-19 13:54:47 3896 [Note] - 169.254.226.201 2025-06-19 13:54:47 808 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2c6c InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2c6c2025-06-19 13:54:47 808 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedinginfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedinginfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 24b8 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 24b82025-06-19 13:54:47 78c InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedinginfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 78c InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedinginfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."alreadysortinfohist" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."arrival" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."arrival_copy" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."bagcheckalarmforsto" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."bagcode_base64" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."baglifeinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."bagscanresultinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."basisdata" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."billlog" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."billloghist" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."checkscaleinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."countinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."customerinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."departure" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."departure_copy" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."devicestateinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."devicestateinfooferrorclosewcs" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."eachscanresult" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."electricenergyrecord" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."event_log" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."fail_upload" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."failsortinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."failsortinfohist" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."failuploaddata" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedinginfo1" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."feedinginfohist" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."interfaceusagedetail" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."jdv2picinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."loading_occupancy" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."manualcodingresult" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."manualcodingresulthist" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."moduleversion" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."nccountinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."orderauto" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."packagecode" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."packageprintinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."port_bagid" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."port_printer" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."portandboxcode" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."portcode_timinghist" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."queue_task" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."readtarget" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."reuploadopccodedata" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."routingtable" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."scannersortinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."scanresult" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."show_billcode" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."sortcodeinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."statisticsofpackagesupplyrecords" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."switchshiftofsto" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."ts" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."upload_fail" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."uploaddata" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."uploadpicinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."user" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."useractioninfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."userrank_rankname" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."userrankinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."webpointparameter" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."webpointparameter2" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."yzgjsortinfo" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:47 2738 InnoDB: Error: Table "mysql"."innodb_table_stats" not found. 2025-06-19 13:54:47 2738 InnoDB: Error: Fetch of persistent statistics requested for table "db_wcs"."yzshift" but the required system tables mysql.innodb_table_stats and mysql.innodb_index_stats are not present or have unexpected structure. Using transient stats instead. 2025-06-19 13:54:49 3896 [Warning] Hostname 'DESKTOP-S1Q82IV' does not resolve to '11.1.85.25'. 2025-06-19 13:54:49 3896 [Note] Hostname 'DESKTOP-S1Q82IV' has the following IP addresses: 2025-06-19 13:54:49 3896 [Note] - fe80::a18:a682:b681:52a8%17 2025-06-19 13:54:49 3896 [Note] - 169.254.226.201 2025-06-19 13:54:49 3896 [Warning] Hostname 'DESKTOP-S1Q82IV' does not resolve to '11.1.85.39'. 2025-06-19 13:54:49 3896 [Note] Hostname 'DESKTOP-S1Q82IV' has the following IP addresses: 2025-06-19 13:54:49 3896 [Note] - fe80::416:a93d:15ac:92bc%17 2025-06-19 13:54:49 3896 [Note] - 169.254.226.201 2025-06-19 13:54:49 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.40'. 2025-06-19 13:54:49 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:49 3896 [Note] - fe80::e985:a0f1:2751:eada%17 2025-06-19 13:54:49 3896 [Note] - 11.1.85.28 2025-06-19 13:54:50 3896 [Warning] Hostname 'DESKTOP-S1Q82IV' does not resolve to '11.1.85.32'. 2025-06-19 13:54:50 3896 [Note] Hostname 'DESKTOP-S1Q82IV' has the following IP addresses: 2025-06-19 13:54:50 3896 [Note] - fe80::3711:88ce:2316:8596%17 2025-06-19 13:54:50 3896 [Note] - 169.254.226.201 2025-06-19 13:54:50 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.38'. 2025-06-19 13:54:50 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:50 3896 [Note] - fe80::e985:a0f1:2751:eada%17 2025-06-19 13:54:50 3896 [Note] - 169.254.178.147 2025-06-19 13:54:51 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.36'. 2025-06-19 13:54:51 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:51 3896 [Note] - fe80::e985:a0f1:2751:eada%17 2025-06-19 13:54:51 3896 [Note] - 169.254.170.71 2025-06-19 13:54:52 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.28'. 2025-06-19 13:54:52 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:52 3896 [Note] - fe80::daa7:903b:6a3c:c735%17 2025-06-19 13:54:52 3896 [Note] - 11.1.85.36 2025-06-19 13:54:53 3896 [Warning] Hostname 'DESKTOP-56G0R2L' does not resolve to '11.1.85.37'. 2025-06-19 13:54:53 3896 [Note] Hostname 'DESKTOP-56G0R2L' has the following IP addresses: 2025-06-19 13:54:53 3896 [Note] - fe80::daa7:903b:6a3c:c735%17 2025-06-19 13:54:53 3896 [Note] - 11.1.85.28 windows2019下安装的mysql5.6 今天启动报错1067,重启服务器后正常了,以上是收集的mysql日志,帮忙分析报错1067的原因
06-21
### 数据目录初始化不完整或损坏 MySQL 启动时报告 `Can't open and lock privilege tables: Table 'mysql.host' doesn't exist` 错误,通常意味着数据目录未正确初始化,或者部分系统表(如 `mysql.host`)缺失。MySQL 的权限管理依赖于这些系统表,若表缺失或数据目录未初始化,将导致服务无法正常启动。 在某些情况下,数据目录可能为空或未正确配置,导致 MySQL 无法找到所需的系统表。为解决此问题,需要重新初始化数据目录,以生成缺失的系统表和相关结构。可以使用 `mysql_install_db` 脚本或 `mysqld --initialize` 命令进行初始化,确保系统表(如 `mysql.user`、`mysql.host`)被正确创建。 对于 Linux 系统,可使用以下命令查找并执行初始化操作: ```bash find / -name mysql_install_db /path/to/mysql_install_db --user=mysql ``` 在 Windows 环境下,可以使用以下命令初始化数据目录: ```cmd mysqld --initialize-insecure --datadir="D:\mysql5\Data" ``` 此命令将生成必要的系统表,并确保 MySQL 服务可以正常访问权限表。若数据目录已存在但缺少部分系统表,初始化操作将重建这些表,从而修复启动错误。 ### 配置文件中路径设置错误 另一个可能的原因是配置文件(如 `my.cnf` 或 `my.ini`)中指定的 `datadir` 或 `basedir` 路径错误,导致 MySQL 无法找到数据目录或系统表。需要检查配置文件中的以下字段: ```ini [mysqld] basedir=D:\mysql5 datadir=D:\mysql5\Data ``` 确保 `datadir` 指向正确的数据目录,并且该目录包含完整的 MySQL 系统表。若路径设置错误,MySQL 将无法访问系统表,从而导致启动失败。 ### 文件权限问题 在某些情况下,MySQL 服务账户可能没有对数据目录的读写权限,导致无法访问系统表。需要确保 MySQL 服务账户对 `D:\mysql5\Data` 或 `/var/lib/mysql` 目录具有读写权限。对于 Linux 系统,可以使用以下命令修改目录权限: ```bash chown -R mysql:mysql /var/lib/mysql chmod -R 755 /var/lib/mysql ``` 对于 Windows 系统,需要确保当前运行 MySQL 服务的用户具有对 `Data` 目录的完全控制权限。 ### 日志分析与错误排查 MySQL 启动时会将详细的错误信息记录在日志文件中,通常位于数据目录下,文件名可能是 `hostname.err` 或 `mysql.err`。通过查看日志文件,可以进一步确认具体错误原因,例如系统表缺失、权限问题或路径配置错误。 例如,日志中可能出现如下错误信息: ``` Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist ``` 此信息表明 MySQL 无法找到 `mysql.host` 表,通常意味着数据目录未正确初始化或系统表损坏。 ### 示例:重新初始化数据目录 ```cmd # Windows 环境下重新初始化数据目录 mysqld --initialize-insecure --datadir="D:\mysql5\Data" ``` ```bash # Linux 环境下使用 mysql_install_db 初始化数据目录 /path/to/mysql_install_db --user=mysql ``` 执行上述命令后,MySQL 将重新生成系统表,确保 `mysql.host`、`mysql.user` 等关键表存在,从而解决启动错误。 ### 示例:修改配置文件路径 ```ini [mysqld] basedir=D:\mysql5 datadir=D:\mysql5\Data ``` 确保配置文件中的 `basedir` 和 `datadir` 指向正确的安装目录和数据目录,避免路径错误导致 MySQL 无法访问系统表。
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