[MySQL参数取值] Status取值ERROR 1193 (HY000): Unknown system variable 'Innodb_buffer_pool_read_requests'

variables参数值，可以通过 select @@xx取值，如下：

mysql> show status like 'Innodb_buffer_pool_read_requests';+----------------------------------+-------------+| Variable_name                    | Value       |+----------------------------------+-------------+| Innodb_buffer_pool_read_requests | 15551159458 |+----------------------------------+-------------+1 row in set (0.00 sec)mysql> select @@Innodb_buffer_pool_read_requests;ERROR 1193 (HY000): Unknown system variable 'Innodb_buffer_pool_read_requests'mysql>