1. 查找my.cnf文件的位置，根据Linux发行版和安装类型可能位于`/etc/mysql/my.cnf`、`/etc/my.cnf`或自定义映射位置。2. 将max_connections参数配置到`[mysqld]`下面。3. 重启MySQL服务以使更改生效。对于个人搭建的Docker环境，只需重启镜像即可。可以使用Docker ID模糊匹配或自定义名称后进行重启。
这意味着所有可用的连接已经被各种客户端使用,你的MySQL服务器不能打开任何新的连接,直到任何现有的连接被关闭。 By default, MySQL 5.5+ can handle up to 151 connections. This number is stored in server variable calledmax_connections. You can update max_connections variable to increase maximum supported ...
By default, MySQL 5.5+ can handle up to 151 connections. This number is stored in server variable calledmax_connections. You can update max_connections variable to increase maximum supported connections in MySQL, provided your server has enough RAM to support the increased connections. 在Mysql5.5+...
And just to check: setting themax_connectionstoo high will result in the mysql server crashing with an "Out of memory" error if you get too many active threads, right? Finally, we've noticed that we have one database where we've setmax_connectionsas high as we think is safe, but we...
You can change the setting to e.g. 200 by issuing the following command without having to restart the MySQL server (obviously it will only work if the user you are logged in as has sufficient permissions to do this): set global max_connections = 200; ...
set global max_connections = 200; This will take effect immediately, but will be forgotten the next time MySQL is restarted. To make the change permanent you need to edit the my.cnf configuration file. On CentOS, RedHat and similar distributions this is at /etc/my.cnf; other distros will...
That is why, even if theopen_files_limitvariable is set to a high value,mysqldservice shows the warning, [Warning] Could not increase number of max_open_files to more than xxxx So, let’s see how to set this limit in MySQL.
If I use the c API, Can use the mysql_close(&mysql); But I dont know how to use the Connect/c++ to close the connectionHow to repeat:try { sql::Driver *driver; sql::Connection *con; sql::Statement *stmt; sql::ResultSet *res; /* Create a connection */ driver = get_driver_in...
%plesk_dir%DatabasesMySQLmy.inifile in a text editor. Add themax_connectionsparameter with a required value under the [mysqld]section: max_connections=150 Save the changes and close the file. Restart theMySQL/MariaDB XXservice via Plesk Services Monitor to apply changes: ...
You need to keep an eye on your max connections under status so that you can see if you REALLY need 500. Perhaps you just need to cache your threads and lower your wait timeout? Many people think that the sort buffers are global and set them very high. Then they get a huge number...