怎么解决MySQL中的5.6.x InnoDB Error Table mysql.innodb_table_stats not found

这篇文章主要介绍“怎么解决MySQL中的5.6.x InnoDB Error Table mysql.innodb_table_stats not found”，在日常操作中，相信很多人在怎么解决MySQL中的5.6.x InnoDB Error Table mysql.innodb_table_stats not found问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”怎么解决MySQL中的5.6.x InnoDB Error Table mysql.innodb_table_stats not found”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

【问题描述】：
检查error log的时候发现大量warnings：
[Warning] InnoDB Error Table mysql.innodb_index_stats not found
[Warning] InnoDB Error Table mysql.innodb_table_stats not found
[Warning] InnoDB Error Table mysql.slave_master_info not found
[Warning] InnoDB Error Table mysql.slave_relay_log_info not found
[Warning] InnoDB Error Table mysql.slave_worker_info not found

或在打开innodb表时，在err-log里会打印出：
 InnoDB: Error: Table "mysql"."innodb_table_stats" not found.
 Error: Fetch of persistent statistics requested for table "{databse_name}"."{table_name}" 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.

【解决方案】：
先看看能否drop table，如果说表不存在，则继续下一步。

1. DROP TABLE mysql.innodb_index_stats;

2. DROP TABLE mysql.innodb_table_stats;

3. DROP TABLE mysql.slave_master_info;

4. DROP TABLE mysql.slave_relay_log_info;

5. DROP TABLE mysql.slave_worker_info;

删除datadir下mysql数据库中的这五张表的frm文件（如有ibd也一并删除）

1. rm -rf $datadir/mysql/innodb_index_stats.*

2. rm -rf $datadir/mysql/innodb_table_stats.*

3. rm -rf $datadir/mysql/slave_master_info.*

4. rm -rf $datadir/mysql/slave_relay_log_info.*

5. rm -rf $datadir/mysql/slave_worker_info.*

再执行如下语句，重新创建这五张表：

1. USE mysql;

3. CREATE TABLE `innodb_index_stats` (

4.   `database_name` varchar(64) COLLATE utf8_bin NOT NULL,

5.   `table_name` varchar(64) COLLATE utf8_bin NOT NULL,

6.   `index_name` varchar(64) COLLATE utf8_bin NOT NULL,

7.   `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,

8.   `stat_name` varchar(64) COLLATE utf8_bin NOT NULL,

9.   `stat_value` bigint(20) unsigned NOT NULL,

10.   `sample_size` bigint(20) unsigned DEFAULT NULL,

11.   `stat_description` varchar(1024) COLLATE utf8_bin NOT NULL,

12.   PRIMARY KEY (`database_name`,`table_name`,`index_name`,`stat_name`)

13. ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;

15. CREATE TABLE `innodb_table_stats` (

16.   `database_name` varchar(64) COLLATE utf8_bin NOT NULL,

17.   `table_name` varchar(64) COLLATE utf8_bin NOT NULL,

18.   `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,

19.   `n_rows` bigint(20) unsigned NOT NULL,

20.   `clustered_index_size` bigint(20) unsigned NOT NULL,

21.   `sum_of_other_index_sizes` bigint(20) unsigned NOT NULL,

22.   PRIMARY KEY (`database_name`,`table_name`)

23. ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;

25. CREATE TABLE `slave_master_info` (

26.   `Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file.',

27.   `Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the master binary log currently being read from the master.',

28.   `Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last read event.',

29.   `Host` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'The host name of the master.',

30.   `User_name` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The user name used to connect to the master.',

31.   `User_password` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The password used to connect to the master.',

32.   `Port` int(10) unsigned NOT NULL COMMENT 'The network port used to connect to the master.',

33.   `Connect_retry` int(10) unsigned NOT NULL COMMENT 'The period (in seconds) that the slave will wait before trying to reconnect to the master.',

34.   `Enabled_ssl` tinyint(1) NOT NULL COMMENT 'Indicates whether the server supports SSL connections.',

35.   `Ssl_ca` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Authority (CA) certificate.',

36.   `Ssl_capath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path to the Certificate Authority (CA) certificates.',

37.   `Ssl_cert` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL certificate file.',

38.   `Ssl_cipher` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the cipher in use for the SSL connection.',

39.   `Ssl_key` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL key file.',

40.   `Ssl_verify_server_cert` tinyint(1) NOT NULL COMMENT 'Whether to verify the server certificate.',

41.   `Heartbeat` float NOT NULL,

42.   `Bind` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'Displays which interface is employed when connecting to the MySQL server',

43.   `Ignored_server_ids` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The number of server IDs to be ignored, followed by the actual server IDs',

44.   `Uuid` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The master server uuid.',

45.   `Retry_count` bigint(20) unsigned NOT NULL COMMENT 'Number of reconnect attempts, to the master, before giving up.',

46.   `Ssl_crl` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Revocation List (CRL)',

47.   `Ssl_crlpath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path used for Certificate Revocation List (CRL) files',

48.   `Enabled_auto_position` tinyint(1) NOT NULL COMMENT 'Indicates whether GTIDs will be used to retrieve events from the master.',

49.   PRIMARY KEY (`Host`,`Port`)

50. ) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Master Information';

52. CREATE TABLE `slave_relay_log_info` (

53.   `Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file or rows in the table. Used to version table definitions.',

54.   `Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the current relay log file.',

55.   `Relay_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The relay log position of the last executed event.',

56.   `Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the master binary log file from which the events in the relay log file were read.',

57.   `Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last executed event.',

58.   `Sql_delay` int(11) NOT NULL COMMENT 'The number of seconds that the slave must lag behind the master.',

59.   `Number_of_workers` int(10) unsigned NOT NULL,

60.   `Id` int(10) unsigned NOT NULL COMMENT 'Internal Id that uniquely identifies this record.',

61.   PRIMARY KEY (`Id`)

62. ) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Relay Log Information';

64. CREATE TABLE `slave_worker_info` (

65.   `Id` int(10) unsigned NOT NULL,

66.   `Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,

67.   `Relay_log_pos` bigint(20) unsigned NOT NULL,

68.   `Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,

69.   `Master_log_pos` bigint(20) unsigned NOT NULL,

70.   `Checkpoint_relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,

71.   `Checkpoint_relay_log_pos` bigint(20) unsigned NOT NULL,

72.   `Checkpoint_master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,

73.   `Checkpoint_master_log_pos` bigint(20) unsigned NOT NULL,

74.   `Checkpoint_seqno` int(10) unsigned NOT NULL,

75.   `Checkpoint_group_size` int(10) unsigned NOT NULL,

76.   `Checkpoint_group_bitmap` blob NOT NULL,

77.   PRIMARY KEY (`Id`)

78. ) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Worker Information';

最后重启mysqld即可。

到此，关于“怎么解决MySQL中的5.6.x InnoDB Error Table mysql.innodb_table_stats not found”的学习就结束了，希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习，快去试试吧！若想继续学习更多相关知识，请继续关注亿速云网站，小编会继续努力为大家带来更多实用的文章！