mysql之数据库某表字符集和数据库字符集不一致导致主从复制配置报错1677
mysql数据库中某张表字符集是utf8而my.cnf设置的数据库的字符集是utf8mb4,导致在配置主从复制时，报如下错误：
Last_Errno: 1677
Last_Error: Column 1 of table 'novel.novel_mp_custom' cannot be converted from type 'tinyint' to type 'int(5)'
原因：
表字符集和数据库字符集不一致导致的
解决过程如下：
主库79查看数据库字符集和报错表的字符集:
mysql> show create database novel\G
*************************** 1. row ***************************
Database: novel
Create Database: CREATE DATABASE `novel` /*!40100 DEFAULT CHARACTER SET utf8mb4 */
mysql> show create table novel_mp_custom\G
*************************** 1. row ***************************
Table: novel_mp_custom
Create Table: CREATE TABLE `novel_mp_custom` (
`id` int(5) NOT NULL AUTO_INCREMENT COMMENT '客服消息自增ID',
`push_num` int(6) NOT NULL DEFAULT '0' COMMENT '成功发送次数',
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=70 DEFAULT CHARSET=utf8 COMMENT='微信客服消息'
1 row in set (0.00 sec)
修改主库79机器上表字符集为utf8mb4:
mysql> alter table `novel_mp_custom` convert to character set utf8mb4;
Query OK, 61 rows affected (0.01 sec)
Records: 61 Duplicates: 0 Warnings: 0
重置79机器上主master信息:
reset master
重新授权同步账户：
mysql> grant replication slave on *.* to novelrep@'10.80.0.2' identified by 'rep@1111'; flush privileges;
Query OK, 0 rows affected, 1 warning (0.00 sec)
79机器上重新dump数据：
mysqldump -uroot -p'5Z$AJ$Jt5ert321' -A -B -F --master-data=2 --single-transaction --events >/root/222.novel.sql
scp -r -i shuosir_key -P 12089 222.novel.sql [email protected]:/root/
5机器上操作：
mysql>stop slave;reset slave all;
mysql> source /root/333.novel.sql;
CHANGE MASTER TO
MASTER_HOST='10.80.0.1',
MASTER_PORT=3306,
MASTER_USER='novelrep',
MASTER_PASSWORD='rep@1111';start slave;show slave status\G
至此主从复制报错解决。