MySQL里的set global wait_timeout 如果你没有修改过MySQL的配置,缺省情况下,wait_timeout的初始值是28800。 wait_timeout过大有弊端,其体现就是MySQL里大量的SLEEP进程无法及时释放,拖累系统性能,不过也不能把这个指设置的过小,否则你可能会遭遇到“MySQL has gone away”之类的问题,通常来说,我觉得把wait_time...
MySQL里的set global wait_timeout 如果你没有修改过MySQL的配置,缺省情况下,wait_timeout的初始值是28800。 wait_timeout过大有弊端,其体现就是MySQL里大量的SLEEP进程无法及时释放,拖累系统性能,不过也不能把这个指设置的过小,否则你可能会遭遇到“MySQL has gone away”之类的问题,通常来说,我觉得把wait_time...
interactive_timeout和wait_timeout的默认值都是28800(8小时)当这两个参数同时出现在里时,会以interactive_timeout的值为准。也就是说不管wait_timeout的值是多少,用show variables like '%timeout%';查看时显示的两个值都是一样的,并且都是interactive_timeout的值。 mysql> show variables like '%timeout%'...
The mariadb documentation says the default value for wait_timeout is 28800. The container seems to have a value of 600 as default for the global variable. Steps to reproduce docker run -d --name mydb -it -e MYSQL_ROOT_PASSWORD=123456 mar...
"wait_timeout"; +---+---+ | Variable_name | Value | +---+---+ | wait_timeout | 28800 | +---+---+ 1 row in set (0.03 sec) mysql> show global variables like "wait_timeout"; +---+---+ | Variable_name | Value | +---+---+ | wait_timeout | 28800 | +---+-...
Modem mode: time to wait for carrier. Sets the time in seconds that the modem will wait for a carrier before hanging up. <n> is a range from 0 to 255 seconds. Fax mode: time to wait for connect. Sets the time in seconds that fax will wait for connection before hanging up. Suggest...
| wait_timeout | 28800 | +---+---+ 可以使用LIKE分句列出匹配的变量: mysql> SHOW VARIABLES LIKE 'have%'; +---+---+ | Variable_name | Value | +---+---+ | have_bdb | YES | | have_innodb | YES | | have_isam | YES | | have...
| wait_timeout | 28800 | +---+---+ 可以使用LIKE分句列出匹配的变量: mysql> SHOW VARIABLES LIKE 'have%'; +---+---+ | Variable_name | Value | +---+---+ | have_bdb | YES | | have_innodb | YES | | have_isam | YES | | have...
SETGLOBALmax_allowed_packet=8M; 1. 8. wait_timeout wait_timeout变量用于指定服务器在关闭空闲连接之前等待的秒数。默认值为28800秒(8小时)。 要修改wait_timeout的值,可以使用以下代码: SETGLOBALwait_timeout=1800; 1. 以上是一些常用的MySQL SET变量列表及其代码示例。通过调整这些变量的值,可以优化和调整...
MySQL里的setglobal wait_timeout 如果你没有修改过MySQL的配置,缺省情况下,wait_timeout的初始值是28800。wait_timeout过大有弊端,其体现就是MySQL里大量的SLEEP进程无法及时释放,拖累系统性能,不过也不能把这个指设置的过小,否则你可能会遭遇到“MySQLhas gone away”之类的问题,通常来说,我觉得把wait_timeout设...