修改mysql锁空间大小

A.   单次生效设置

进入mysql命令

mysql -uroot -p

show variables like "%_buffer%";(不要忘记带;号，没有;号表示一条语句没有结束)

默认的innodb_buffer_pool_size=8M

 

 

 

 

tmp_table_size = 4G

max_heap_table_size = 256M

innodb_file_format = Barracuda

default-time-zone = '+08:00'

connect_timeout = 600

max_allowed_packet = 500M

innodb_strict_mode=0

SET GLOBAL innodb_buffer_pool_size=4*1024*1024*1024;

innodb_log_buffer_size=512M

B.   永久生效设置

vim /etc/my.cnf.d/server.cnf