SET @mysqlx_max_connections_sav= @@global.mysqlx_max_connections; SET GLOBAL mysqlx_max_connections=150; show variables like 'mysqlx_max_connections'; Variable_name Value mysqlx_max_connections 150 SET @@global.mysqlx_max_connections=500; show variables like 'mysqlx_max_connections'; Variable_name Value mysqlx_max_connections 500 SET mysqlx_max_connections=150; ERROR HY000: Variable 'mysqlx_max_connections' is a GLOBAL variable and should be set with SET GLOBAL SET @@local.mysqlx_max_connections=150; ERROR HY000: Variable 'mysqlx_max_connections' is a GLOBAL variable and should be set with SET GLOBAL SET @@mysqlx_max_connections=150; ERROR HY000: Variable 'mysqlx_max_connections' is a GLOBAL variable and should be set with SET GLOBAL SET @@session.mysqlx_max_connections=150; ERROR HY000: Variable 'mysqlx_max_connections' is a GLOBAL variable and should be set with SET GLOBAL SET SESSION mysqlx_max_connections=150; ERROR HY000: Variable 'mysqlx_max_connections' is a GLOBAL variable and should be set with SET GLOBAL SET GLOBAL mysqlx_max_connections=0; Warnings: Warning 1292 Truncated incorrect mysqlx_max_connections value: '0' SET GLOBAL mysqlx_max_connections=-848; Warnings: Warning 1292 Truncated incorrect mysqlx_max_connections value: '-848' SET GLOBAL mysqlx_max_connections='%45*#in'; ERROR 42000: Incorrect argument type to variable 'mysqlx_max_connections' show variables like 'mysqlx_max_connections'; Variable_name Value mysqlx_max_connections 1 SET @@global.mysqlx_max_connections=151; SET @@global.mysqlx_max_connections= @mysqlx_max_connections_sav;