mysql迁移时错误总结

ytutr

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：

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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：

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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：

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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。

1	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。

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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

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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。

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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;

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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';

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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';

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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

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/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;