MySQL ip阻塞

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 “Host  ???? is blocked because of many connection errors; unblock with ‘mysqladmin flush-hosts’”

原因:

  出现这种情况是因为同一个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。

两种解决方法:

A:修改max_connection最大值

  • 进入Mysql数据库查看max_connection_errors: show variables like ‘%max_connection_errors%’;
  • 修改max_connection_errors的数量为1000: set global max_connect_errors = 1000;
  • 查看是否修改成功:show variables like ‘%max_connection_errors%’;

B:flush host 刷新主机?

  • 登录mysql控制台
  • 输入mysql -uroot -p
  • 输入MySQL的密码
  • 输入flush hosts

 

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datagrip mysql 修改表结构后进程阻塞导致无法执行其他操作,找到阻塞进程并杀死即可

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