[转载] mysql5.6 删除之前的ibdata1文件后再重新生成，遇到[Warning] Info table is not ready to be used. Table 'mysql.slave_master_info' cannot be opened.问题

[转载] mysql5.6 删除之前的ibdata1文件后再重新生成，遇到[Warning] Info table is not ready to be used. Table 'mysql.slave_master_info' cannot be opened.问题

转载：http://blog.csdn.net/wxc20062006/article/details/17999407

1.在安装mysql 5.6.15时，安装完成后，后台日志报如下警告信息：

2014-01-08 13:47:34 22946 [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.

2014-01-08 13:47:34 22946 [Warning] Info table is not ready to be used. Table 'mysql.slave_master_info' cannot be opened.

2014-01-08 13:47:34 22946 [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.

2014-01-08 13:47:34 22946 [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.

2014-01-08 13:47:34 22946 [Warning] Info table is not ready to be used. Table 'mysql.slave_relay_log_info' cannot be opened.

.......

2014-01-08 13:49:33 22946 [Warning] InnoDB: Cannot open table mysql/innodb_index_stats 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.

2014-01-08 13:49:49 7f3ae82a5700  InnoDB: Error: table `mysql`.`innodb_index_stats` does not exist in the InnoDB internal

2.问题产生原因：具体原因目前不详，网上查找到的资料:数据库打开这几张表的默认引擎为MyISAM，但是这几张表在建表时的引擎为INNODB

但是能确定的，这几张表确实是在mysql5.6中新入的

innodb_index_stats,

innodb_tables_stats,

slave_master_info,

slave_relay_log_info,

slave_worker_info 

3.解决方法：

(1) 登录数据库，进入mysql库，执行如下SQL删除5张表

记住，一定要是drop table if exists

drop table if exists innodb_index_stats;

drop table if exists innodb_table_stats;

drop table if exists slave_master_info;

drop table if exists slave_relay_log_info;

drop table if exists slave_worker_info;

如下是执行的结果，忽略你看到的Warning信息

admin@localhost : mysql 02:12:26> drop table if exists innodb_index_stats;

Query OK, 0 rows affected, 1 warning (0.00 sec)

Warning (Code 155): Table 'mysql.innodb_index_stats' doesn't exist

admin@localhost : mysql 02:12:26> drop table if exists innodb_table_stats;

Query OK, 0 rows affected, 1 warning (0.00 sec)

Warning (Code 155): Table 'mysql.innodb_table_stats' doesn't exist

admin@localhost : mysql 02:12:26> drop table if exists slave_master_info;

Query OK, 0 rows affected, 1 warning (0.00 sec)

Warning (Code 155): Table 'mysql.slave_master_info' doesn't exist

admin@localhost : mysql 02:12:27> drop table if exists slave_relay_log_info;

Query OK, 0 rows affected, 1 warning (0.00 sec)

Warning (Code 155): Table 'mysql.slave_relay_log_info' doesn't exist

admin@localhost : mysql 02:12:27> drop table if exists slave_worker_info;

Query OK, 0 rows affected, 1 warning (0.00 sec)

Warning (Code 155): Table 'mysql.slave_worker_info' doesn't exist

执行完后，可以用show tables查看一下，看表的数据是否已经比删除之前减少了，如果减少了，说明你成功了！

(2)面这一部操作完成后，停止数据库，并进入到数据库数据文件所在目录，删除表面5个表所对应的idb文件，如下所示：

[mysql@test /data/mysqldata3/mydata/mysql]ls *.ibd

innodb_index_stats.ibd  innodb_table_stats.ibd  slave_master_info.ibd  slave_relay_log_info.ibd  slave_worker_info.ibd

[mysql@teset /data/mysqldata3/mydata/mysql]rm -f *.ibd

(3) 重新启动数据库，进入到mysql库，重建上面被删除的表结构：

数据库的建设表脚本在mysql软件的安装目录的share目录下，我的mysql软件的安装路径为/usr/test/mysql

admin@localhost : (none) 02:23:03> use mysql

Database changed

如下是执行建表脚本前表的数量：

admin@localhost : mysql 02:23:48> source /usr/test/mysql/share/mysql_system_tables.sql

admin@localhost : mysql 02:23:50> show tables;

+---------------------------+

| Tables_in_mysql           |

+---------------------------+

| columns_priv              |

| db                        |

| event                     |

| func                      |

| general_log               |

| help_category             |

| help_keyword              |

| help_relation             |

| help_topic                |

| ndb_binlog_index          |

| plugin                    |

| proc                      |

| procs_priv                |

| proxies_priv              |

| servers                   |

| slow_log                  |

| tables_priv               |

| time_zone                 |

| time_zone_leap_second     |

| time_zone_name            |

| time_zone_transition      |

| time_zone_transition_type |

| user                      |

+---------------------------+

23 rows in set (0.00 sec)

如下为执行建表脚本后，表的数量

admin@localhost : mysql 02:23:46> show tables;

+---------------------------+

| Tables_in_mysql           |

+---------------------------+

| columns_priv              |

| db                        |

| event                     |

| func                      |

| general_log               |

| help_category             |

| help_keyword              |

| help_relation             |

| help_topic                |

| innodb_index_stats        |

| innodb_table_stats        |

| ndb_binlog_index          |

| plugin                    |

| proc                      |

| procs_priv                |

| proxies_priv              |

| servers                   |

| slave_master_info         |

| slave_relay_log_info      |

| slave_worker_info         |

| slow_log                  |

| tables_priv               |

| time_zone                 |

| time_zone_leap_second     |

| time_zone_name            |

| time_zone_transition      |

| time_zone_transition_type |

| user                      |

+---------------------------+

28 rows in set (0.00 sec)

(4) 用show create table命令查看表时，也完正常，后台日志中也不再报与上面提到的5张表相关的错误，到此，问题全部解决！

后记：在后面的环境中，配置双主架构时，又遇到了如下问题：

error:

ERROR 1794 (HY000): Slave is not configured or failed to initialize properly. You must at least set --server-id to enable either a master or a slave. Additional error messages can be found in the MySQL error log.

最后通过如下的操作解决的问题，具体原因还尚未清楚

(1)登录数据库后，删除5张表，并重新导入脚本

use mysql

drop table  slave_master_info;

drop table  slave_relay_log_info;

drop table  slave_worker_info;

drop table  innodb_index_stats;

drop table  innodb_table_stats;

source /usr/coolpad/mysql/share/mysql_system_tables.sql

(2)重新启动数据库

注：这一步是必须的，否则无法正常配置双主架构。

来自为知笔记(Wiz)