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проблемы с mysql


WideAreaNetwork
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Topic starter
(@wideareanetwork)
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Присоединился: 2 года назад

предистория, была смена версии мускула, при обновлении ОС и последующим pkg upgrade

подскажите пжл как решить проблему, не могу сделать резервную копию базы, выбивает ошибку

mysqldump: Couldn't execute 'SHOW VARIABLES LIKE 'gtid\_mode'': Table 'performance_schema.session_variables' doesn't exist

вроде как пишет гугл что решение это mysql_upgrade - mysql_upgrade -u root -p --force, попробовал без ключа --force в итоге получил ошибку

mysql_upgrade: [ERROR] 1146: Table 'mysql.innodb_table_stats' doesn't exist

чекнул эту таблицу

mysql> check table innodb_table_stats;
+--------------------------+-------+----------+------------------------------------------------+
| Table | Op | Msg_type | Msg_text |
+--------------------------+-------+----------+------------------------------------------------+
| mysql.innodb_table_stats | check | Error | Table 'mysql.innodb_table_stats' doesn't exist |
| mysql.innodb_table_stats | check | status | Operation failed |
+--------------------------+-------+----------+------------------------------------------------+
2 rows in set (0.00 sec)

восстанавливаться не хочет

mysql> repair table innodb_table_stats;

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

| Table | Op | Msg_type | Msg_text |

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

| mysql.innodb_table_stats | repair | Error | Table 'mysql.innodb_table_stats' doesn't exist |

| mysql.innodb_table_stats | repair | status | Operation failed |

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

2 rows in set (0.00 sec)

так как не могу сделать дамп базы боюсь навредить, с ключом --force не должна быть потеря данных?
каким еще образом можно сохранить нужную БД чтобы не потерять данные?

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1 Ответ
WideAreaNetwork
Сообщения: 10
Topic starter
(@wideareanetwork)
Младший сисадмин
Присоединился: 2 года назад

перед манипуляциями с базой делаем ее бэкап
cp -r /var/db/mysql /root

1) Удалить эти таблицы из Mysql:
innodb_index_stats
innodb_table_stats
slave_master_info
slave_relay_log_info
slave_worker_info



root#mysql -u root -p
mysql>use mysql;
mysql>DROP TABLE innodb_index_stats;
mysql>DROP TABLE innodb_table_stats;
mysql>DROP TABLE slave_master_info;
mysql>DROP TABLE slave_relay_log_info;
mysql>DROP TABLE slave_worker_info;

2) Удалить файлы *.frm и *.ibd для 5 таблиц выше.

3) вместо поиска структуры таблиц, проще будет на виртуалке поднять фрю, установить туда мускул,
сделать дамп БД мускула и оттуда уже взять структуру таблиц нужных

Создайте таблицы, выполнив следующие запросы:

 

CREATE TABLE `innodb_index_stats` (
`database_name` varchar(64) COLLATE utf8_bin NOT NULL,
`table_name` varchar(199) 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(199) 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 IF NOT EXISTS `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 COLLATE utf8_bin COMMENT 'The name of the SSL key file.',
`Ssl_verify_server_cert` tinyint(1) NOT NULL COMMENT 'Whether to verify the server certificate.',
`Heartbeat` float NOT NULL,
`Bind` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'Displays which interface is employed when connecting to the MySQL server',
`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',
`Uuid` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The master server uuid.',
`Retry_count` bigint(20) unsigned NOT NULL COMMENT 'Number of reconnect attempts, to the master, before giving up.',
`Ssl_crl` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Revocation List (CRL)',
`Ssl_crlpath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path used for Certificate Revocation List (CRL) files',
`Enabled_auto_position` tinyint(1) NOT NULL COMMENT 'Indicates whether GTIDs will be used to retrieve events from the master.',
`Channel_name` char(64) NOT NULL DEFAULT '' COMMENT 'The channel on which the slave is connected to a source. Used in Multisource Replication',
`Tls_version` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'Tls version',
PRIMARY KEY (`Channel_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Master Information';

CREATE TABLE IF NOT EXISTS `slave_relay_log_info` (
`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.',
`Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the current relay log file.',
`Relay_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The relay log position of the last executed event.',
`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.',
`Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last executed event.',
`Sql_delay` int(11) NOT NULL COMMENT 'The number of seconds that the slave must lag behind the master.',
`Number_of_workers` int(10) unsigned NOT NULL,
`Id` int(10) unsigned NOT NULL COMMENT 'Internal Id that uniquely identifies this record.',
`Channel_name` char(64) NOT NULL DEFAULT '' COMMENT 'The channel on which the slave is connected to a source. Used in Multisource Replication',
PRIMARY KEY (`Channel_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Relay Log Information';

CREATE TABLE `slave_worker_info` (
`Id` int(10) unsigned NOT NULL,
`Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Relay_log_pos` bigint(20) unsigned NOT NULL,
`Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Master_log_pos` bigint(20) unsigned NOT NULL,
`Checkpoint_relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Checkpoint_relay_log_pos` bigint(20) unsigned NOT NULL,
`Checkpoint_master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
`Checkpoint_master_log_pos` bigint(20) unsigned NOT NULL,
`Checkpoint_seqno` int(10) unsigned NOT NULL,
`Checkpoint_group_size` int(10) unsigned NOT NULL,
`Checkpoint_group_bitmap` blob NOT NULL,
`Channel_name` char(64) NOT NULL DEFAULT '' COMMENT 'The channel on which the slave is connected to a source. Used in Multisource Replication',
PRIMARY KEY (`Channel_name`,`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Worker Information';

mysql>exit;

 

4) Перезагружаем сервер MySQL.

 

service mysql-server restart

 

если нужно то еще делаем обновление, так как у меня проблемы начались после обновления пакетов pkg upgrade

 

mysql_upgrade -u root -p
service mysql-server restart
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