问题: 最近的项目中,发现Mysql数据库在8个小时内,没有请求时,会自动断开连接,这是MySQL服务器的问题.The last packet successfully received from the server was 1,836,166 milliseconds ago. The last packet sent successfully to the server was 29,134 milliseconds ago. 原因: MySQL服务器默认的“wait_timeout”是…
语言:javaEE 框架:spring mvc+spring+mybatis 数据库:mysql8 WEB服务器:tomcat8 背景: 在试运营阶段发现发生“连接超时”异常 抛出异常: Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 353,479,051 milliseconds ago. The…
用SSH远程,如果几分钟没有任何操作,连接就会断开,必须重新登陆才行,非常麻烦,一般修改2个地方3项即可解决问题: 1.终端键入:echo $TMOUT 如果显示空白,表示没有设置,等于使用默认值0,一般情况下应该是不超时.如果大于0,可以在如/etc/profile之类文件中设置它为0Definition: TMOUT: If set to a value greater than zero, the value is interpreted as the number of se…
mysql数据库长时间未操作自动断开连接由参数:interactive_timeout和wait_timeout控制,默认都是8小时(28800分钟) mysql> show variables like '%timeout%'; +-----------------------------------+----------+ | Variable_name | Value | +-----------------------------------+----------+ | connect_…