CCIE那点事

项目中，由于连接数过多，提示“Too many connections”，需要增加连接数。我在 /etc/my.cnf中修改了

max_connections = 3000

但是， 一直都是显示的 214

mysql> show variables like "max_connections";
+—————–+——-+
| Variable_name   | Value |
+—————–+——-+
| max_connections | 214   |
+—————–+——-+
1 row in set+

修改 /usr/lib/systemd/system/mariadb.service
LimitNOFILE=65535
LimitNPROC=65535

systemctl status mariadb

Warning: mariadb.service changed on disk. Run ‘systemctl daemon-reload’ to reload units.
Hint: Some lines were ellipsized, use -l to show in full.

systemctl daemon-reload
systemctl restart mariadb

show variables like ‘%max_connections%’;

extra_max_connections    1
max_connections    3000    —恢复和配置一样

http://dev.mysql.com/doc/refman/5.7/en/too-many-connections.html
http://www.oschina.net/question/853151_241231