【異常】 解決mysql從庫中斷同步的步驟

1、進入mysql 容器

​​​​​​​docker exec -it hadoop-slave2-mysql bash

2、進入mysql   mysql -uroot -p

root@slave2_mysql:/# mysql -uroot -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 97
Server version: 8.0.20 MySQL Community Server - GPL

Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

3、查看 從庫狀態信息

show slave status  \G

4、根據slave status中的Relay_Log_File和Relay_Log_Pos兩個值 ，先查看當前被中斷的binlog event group操作是什麼？

查看的命令：

語法： show relaylog events in "Relay_Log_File" from Relay_Log_Pos limit n
例如：
show relaylog events in 'slave2_mysql-relay-bin.000099' from 200474932 limit 10;


5、解決 

stop slave;

set global SQL_SLAVE_SKIP_COUNTER=1;

start slave;
​​​​​​​
show slave status  \G;