Maximum number of connections to MySQL

MySQL's maximum number of connections by default is 100, this value for a lot of concurrent connection of the database application is not enough, when the connection request is greater than the default number of connections, there will be unable to connect to the database error, so we need to adjust it to a certain size

设置新的MySQL最大连接数为200：    MySQL> set GLOBAL max_connections=200 view max_connectionsshow variables like '%max_connections% ';

Maximum number of connections to MySQL