mysql Communication link failure, message from server: "Can't get hostname for your address"

【mysql Communication link failure, message from server: "Can't get hostname for your address"】的更多相关文章

mysql Communication link failure, message from server: "Can't get hostname for your address"

在连接mysql jdbc时候,抛出了 com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Communication link failure, message from server: "Can't get hostname for your address" 的错误,无论是使用jdbc:mysql://127.0.0.1:3306还是jdbc:mysql://localhost:3306都出…

Mysql Communication link failure :1153 Got a packet bigger than 'max_allowed_packet' bytes

出现这种情况: 临时解决方法是: 登录mysql: 执行: set global max_allowed_packet=1000000000; set global net_buffer_length=1000000; FLUSH PRIVILEGES 终极解决就是在配置文件中: 将max_allowed_packet = 1000000000; #因为有的Mysql 不支持1024M 这种写法,具体版本情况,暂时还不明确..…

mysql Communications link failure Last packet sent to the server was X ms ago

想必大家在用MySQL时都会遇到连接超时的问题,如下图所示: 就是这个异常(com.mysql.jdbc.exceptions.jdbc4.Communication***ception:Communications link failure Last packet sent to the server was X ms ago),是由于MySQL服务在长时间不连接之后断开了,断开之后的首次请求会抛出这个异常.那么既然是连接超时的问题,就要去MySQL中探究一下连接时间是怎么控制的.打开MySQ…

jdbc 连接mysql Communications link failure的解决办法

使用Connector/J连接MySQL数据库,程序运行较长时间后就会报以下错误: Communications link failure,The last packet successfully received from the server was *** millisecond ago.The last packet successfully sent to the server was *** millisecond ago. 其中错误还会提示你修改wait_timeout或是使用Co…

Mysql Communications link failure 问题的解决

问题现象 com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. I spend some days to solve this…

mysql Communications link failure,C3p0的参数详解

MySQL默认一个连接空闲8小时候就会自动断开,而这时程序以为连接还能使用,然后在使用的时候就会出现Communications link failure异常. 这时需要进行两步设置,有时候只设置MySQL就可以了. 一.在MySQL的配置文件(linux配置文件是my.cnf,windows配置文件为my.ini)中添加以下两行(默认值为28800,下面的值代表一年.听说windows下的MySQL不支持一年,可以适当减少尝试) wait_timeout=31536000 interactiv…