mysql>show variables like '%timeout';
打印结果如下:
+----------------------------+-------+
| Variable_name | Value |
+----------------------------+-------+
| connect_timeout | 5 |
| delayed_insert_timeout | 300 |
| interactive_timeout | 28800 |
| net_read_timeout | 30 |
| net_write_timeout | 60 |
| slave_net_timeout | 3600 |
| wait_timeout | 28800 |
+----------------------------+-------+
interactive_timeout 需在mysql_connect()设置CLIENT_INTERACTIVE选项后起作用,并被赋值为wait_timeout;
mysql>set wait_timeout = 10; 对当前交互链接有效;
mysql>set interactive_timeout = 10; 对后续起的交互链接有效;
该超时时间单位是秒,从变量从上次SQL执行后算起;当前空闲若超过该时间,则也会被强制断开。
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