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有时候mysql会遇到： com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 126,421,823 milliseconds ago. The last packet sent successfully to the...

使用linux下的软连接方法，具体操作如下：（以迁移到/home/mysql/目录为例)先停止mysql:代码如下 复制代码/etc/init.d/mysqld stop移动数据:mv /var/lib/mysql/* /home/mysql/创建软连接:ln -s /home/mysql/ /var/lib/mysql/启动mysql:/etc/init.d/mysqld st...

出错信息：com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 36,799,660 milliseconds ago. The last packet sent successfully to the server w...

第一步：下载mysqlwget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.20-linux-glibc2.12-x86_64.tar.gz第二步：在安装目录中中解压压缩包，并改名为mysql，我的安装目录是/mntcd /mnttar -xzvf mysql-5.7.20-linux-glibc2.12-x86_64....