MySQL 版本 5.6.14
公司有几台MySQL服务器的错误日志显示,有几个系统表不存在.
innodb_table_stats
?innodb_index_stats
?slave_master_info
?slave_relay_log_info
?slave_worker_info
这是因为数据库初始化的时候,dba可能删除过ibdata1文件
虽然重启之后,数据库会自动创建一个ibdata1文件,但是上述系统表也是innodb引擎,所以不能访问了.
这虽然不会影响业务,但是使用innobackupex备份的时候,会写入错误日志.
最后错误日志里,都是这种信息.影响日常检查。
?解决的方法.
1.删除上述系统表
drop table mysql.innodb_index_stats;
?drop table mysql.innodb_table_stats;
?drop table mysql.slave_master_info;
?drop table mysql.slave_relay_log_info;
?drop table mysql.slave_worker_info;
?
?2.删除相关的.frm .ibd文件
rm -rf innodb_index_stats*
?rm -rf innodb_table_stats*
?rm -rf slave_master_info*
?rm -rf slave_relay_log_info*
?rm -rf slave_worker_info*
?
?3.重新创建上述系统表
CREATE TABLE `innodb_index_stats` (
? `database_name` varchar(64) COLLATE utf8_bin NOT NULL,
? `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
? `index_name` varchar(64) COLLATE utf8_bin NOT NULL,
? `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
? `stat_name` varchar(64) COLLATE utf8_bin NOT NULL,
? `stat_value` bigint(20) unsigned NOT NULL,
? `sample_size` bigint(20) unsigned DEFAULT NULL,
? `stat_description` varchar(1024) COLLATE utf8_bin NOT NULL,
? PRIMARY KEY (`database_name`,`table_name`,`index_name`,`stat_name`)
?) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
?CREATE TABLE `innodb_table_stats` (
? `database_name` varchar(64) COLLATE utf8_bin NOT NULL,
? `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
? `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
? `n_rows` bigint(20) unsigned NOT NULL,
? `clustered_index_size` bigint(20) unsigned NOT NULL,
? `sum_of_other_index_sizes` bigint(20) unsigned NOT NULL,
? PRIMARY KEY (`database_name`,`table_name`)
?) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
?CREATE TABLE `slave_master_info` (
? `Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file.',
? `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.',
? `Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last read event.',
? `Host` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'The host name of the master.',
? `User_name` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The user name used to connect to the master.',
? `User_password` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The password used to connect to the master.',
? `Port` int(10) unsigned NOT NULL COMMENT 'The network port used to connect to the master.',
? `Connect_retry` int(10) unsigned NOT NULL COMMENT 'The period (in seconds) that the slave will wait before trying to reconnect to the master.',
? `Enabled_ssl` tinyint(1) NOT NULL COMMENT 'Indicates whether the server supports SSL connections.',
? `Ssl_ca` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Authority (CA) certificate.',
? `Ssl_capath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path to the Certificate Authority (CA) certificates.',
? `Ssl_cert` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL certificate file.',
? `Ssl_cipher` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the cipher in use for the SSL connection.',
? `Ssl_key` text CHARACTER SET utf8 COLLAT