MariaDB链接超时优化

查看mysql server超时时间：

MariaDB [(none)]> use xspeeder;

MariaDB [xspeeder]> show global variables like '%timeout%';

+----------------------------+----------+
| Variable_name              | Value    |
+----------------------------+----------+
| connect_timeout            |        |
| deadlock_timeout_long      |  |
| deadlock_timeout_short     |     |
| delayed_insert_timeout     |       |
| innodb_lock_wait_timeout   |        |
| innodb_rollback_on_timeout | OFF      |
| interactive_timeout        |     |
| lock_wait_timeout          |  |
| net_read_timeout           |        |
| net_write_timeout          |        |
| slave_net_timeout          |      |
| thread_pool_idle_timeout   |        |
| wait_timeout               |     |
+----------------------------+----------+
设置超时时间，临时生效（以秒为单位）： 

  msyql> set global wait_timeout=;

  msyql> set global interactive_timeout=;

修改配置文件/etc/my.cnf.d/server.conf
        在 [mysqld]下添加
            wait_timeout=86400

默认超时时间是28800即8个小时
86400为24个小时