MairaDB中,MySql Host is blocked because of many connection errors; unblock with 'mysqladmin flush

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airaDB中,mysql Host is blocked because of many connection errors; unblock with ‘mysqladmin flush-hosts‘ 解决方法

 
  • 环境:linux,10.0.38-MariaDB,

  • 错误:Host is blocked because of many connection errors; unblock with ‘mysqladmin flush-hosts‘

  • 原因:同一个ip在短时间内产生太多(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:

1.进入linux,使用命令:mysql --help |grep Distrib 查看MariaDB版本

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2.查看mysql的mariaDB版本信息和路径,使用命令:mysqladmin -u root -p version

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3.登录进入mariaDB。 使用命令:mysql -uroot -praising321654

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4.查看当前最大errors数,并且修改成1000。
命令:
① 进入Mysql数据库查看max_connection_errors: show variables like ‘%max_connection_errors%‘;
② 修改max_connection_errors的数量为1000: set global max_connect_errors = 1000;
③ 查看是否修改成功:show variables like ‘%max_connection_errors%‘;

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5.为了永久生效,最好清理一下host文件。直接使用命令:flush hosts;

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通过以上步骤,最后就不会出现
Host is blocked because of many connection errors; unblock with ‘mysqladmin flush-hosts‘的提示了。

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