waiting in connection_control plugin状态表示MySQL服务器正在等待connection_control插件处理一个连接请求。这通常发生在用户连续多次登录失败,且这些失败的尝试超过了connection_control_failed_connections_threshold设置的阈值之后。此时,插件会延迟新的连接尝试,以保护系统资源不被过度消耗。
connection_control_failed_connections_threshold=5 connection_control_max_connection_delay=2147483647 connection_control_min_connection_delay=1500 配置说明: plugin-load-add=connection_control.so#插件预加载 connection-control=FORCE_PLUS_PERMANENT#强制打开插件 connection-control-failed-login-attempts=FORCE_PLUS_P...
现有大量的连接数,直接通过pt-kill处理即可。 pt-kill --user=root --ask-pass --no-version-check --match-command Connect --match-state "Waiting in connection_control plugin" --victims all --interval 10 --print --kill 由于pt-kill安装需要依赖第三方工具包(yum -y install perl perl-devel perl...
mysql> install plugin connection_control soname'connection_control.so'; Query OK,0rowsaffected(0.01sec)mysql> install plugin connection_control_failed_login_attempts soname'connection_control.so'; Query OK,0rowsaffected(0.00sec) 验证connection_control插件情况 mysql>selectplugin_name,plugin_statusfro...
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| 1817091 | testuser | localhost | NULL | Connect | 16 | Waiting in connection_control plugin | NULL | +---+---+---+---+---+---+---+---+ 正常情况下,输错密码是即刻返回错误的,当连续失败次数达到阈值后,再次进行连接尝试,则会延迟响应,具体表现就是一直卡着,到延迟结束后才返回错误...
| 1817091 | testuser | localhost | NULL | Connect | 16 | Waiting in connection_control plugin | NULL | +---+---+---+---+---+---+---+---+ 正常情况下,输错密码是即刻返回错误的,当连续失败次数达到阈值后,再次进行连接尝试,则会延迟响应,具体表现就是一直卡着,到延迟结束后才返回错误...
---+---+|1817003|root|localhost|NULL|Query|0|starting|show processlist||1817091|testuser|localhost|NULL|Connect|16|Waitinginconnection_control plugin|NULL|+---+---+---+---+---+---+
Connection Management Notes The conn_delay/Waiting in connection_control plugin stage was not reset after a delay introduced by the connection control plugin which resulted in incorrect monitoring information. (Bug #35205358)Data Dictionary Notes Attempting to upgrade a MyISAM table containing a mix ...
---+---+---+---+---+|1817003|root|localhost|NULL|Query|0|starting|show processlist||1817091|testuser|localhost|NULL|Connect|16|Waitinginconnection_control plugin|NULL|+---+---