【mysql报错】MySQL host is blocked because of many connection errors; 解决方法
MySQL host is blocked because of many connection errors; 报错
环境
操作系统:Linux
数据库:mysql5.7.27
错误提示
jHost '10.146.5.209' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'Connection closed by foreign host.
原因
同一ip短时间之内产生太多(超过mysql数据库max_connection_errors的最大值)中断的数据库连接而导致的阻塞;
解决方法
第一种:提高允许的max_connect_errors数量(此方法不彻底)
登录Mysql数据库查看max_connect_errors: show variables like 'max_connect_errors';
修改max_connect_errors的数量为1000: set global max_connect_errors = 1000;
查看是否修改成功:show variables like 'max_connect_errors';
第一种:提高允许的max_connect_errors数量
whereis mysqladmin查找mysqladmin的路径
使用命令修改:
/usr/bin/mysqladmin flush-hosts -h主机ip -uroot -p
备注:
如果是配置了主从备份的也需要都清理一遍
第二步也可以在数据库中进行,登录数据库,命令如下:
mysql> flush hosts;
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