mysql迁移时经常会出现的有哪些错误
本文主要给大家介绍mysql迁移时经常会出现的有哪些错误,文章内容都是笔者用心摘选和编辑的,具有一定的针对性,对大家的参考意义还是比较大的,下面跟笔者一起了解下mysql迁移时经常会出现的有哪些错误吧。
错误1:数据库做迁移时,往往会出现各种问题,比如performance_schema,数据库perfor这个出错,可以尝试用此命令修复:
mysql_upgrade -u root -p
mysql_upgrade -u root -p --force
错误2:找不到指定的innodb目录。
在my.cnf配置文件中添加如下参数:
innodb_data_home_dir = /home/data/database
innodb_data_file_path = ibdata1:10M:autoextend
innodb_log_group_home_dir = /home/data/database
这里说一下正确迁移数据库的步骤:
1)初始化数据库目录:/data
mysqld --initialize-insecure --basedir=/usr/local/mysql --datadir=/home/data/database --user=mysql --server-id=50
2)删除初始化目录下的文件:rm -rf ibdata1 iblogfile1 iblogfile2 mysql
3)把复制的数据库拷贝到初始化的目录下cp mysql ibdata1 iblogfile1 iblogfile2 /data/
4)mysql_upgrade -u root -p #这一步至关重要,一般能解决迁移时所有问题。
拷贝的数据库可能出现各种错误,此时需要在my.cnf配置文件中设置innodb_force_recovery=1 ,重启mysql,如果出错改为2一直到6试试。
错误3:迁移完数据库配置主从复制时,总是提示least set server_id:
删除mysql下的5张表。
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;
然后删除:/data/mysql下相关的.frm .ibd文件 #如果没有则无需删除
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*
登录数据库:> source /usr/local/mysql/share/mysql_system_tables.sql #此命令不行的话需要重新建表。
use mysql
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 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.',
PRIMARY KEY (`Host`,`Port`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Master Information';
CREATE TABLE `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.',
PRIMARY KEY (`Id`)
) 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,
PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Worker Information';
重启mysql。
错误:mysql.user has no `Event_priv` column at position 28
/usr/local/mysql/bin/mysqld --defaults-file=/usr/local/mysql/my.cnf --initialize-insecure
select user,host,authentication_string,plugin from mysql.user; #查看用户状态
UPDATE mysql.user SET authentication_string=PASSWORD('password') WHERE User='root' and host='localhost';
FLUSH PRIVILEGES;
/usr/local/mysql/bin/mysqld_safe --defaults-file=/usr/local/mysql/my.cnf --skip-grant-tables &
/usr/local/mysql/bin/mysql_upgrade --defaults-file=/usr/local/mysql/my.cnf -p --force GRANT ALL PRIVILEGES ON *.* TO 'test1'@'localhost' IDENTIFIED BY 'password'; #创建一个测试用的账户
select user,host,authentication_string,plugin from mysql.user; #用户状态还是错误
UPDATE mysql.user SET authentication_string=PASSWORD('password') WHERE User='test1' and host='localhost';
UPDATE mysql.user SET plugin='mysql_native_password' WHERE User='test1' and host='localhost';
FLUSH PRIVILEGES;
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