Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 2,926,157 milliseconds ago. The last packet sent successfully to the server was 2,926,158 milliseconds ago. is longer than t…
在使用mysql数据库,新建连接时,会报2003-Can't connect to server on 'localhost'(10038)错误,原因主要是MYSQL服务没有启动起来,但是进入:计算机——管理——服务中,找不到MYSQL服务,主要解决办法: 方法1: 1.找到mysql的安装路径下的 bin 文件夹下,例如我的是:"E:\dataBase\mySQL\bin"; 2.找到bin文件夹下的 “mysqld.exe” 可执行文件,双击,这样mysql服务就可以在服务中找到了…
本地升级了下MySQL的版本,从5.6升为5.7,数据文件直接拷贝的,项目查询数据库报错: Could not retrieve transation read-only status server The last packet successfully received from the server was 20,519 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds…
今天访问已经架上服务器的网站,报错: Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 78,050,512 milliseconds ago. The last packet sent successfully to the server was 78,050,512 milliseconds ago.…
调试一个程序, 调试到一半, 下班回家, 程序卡在了某一行, 第二天早上回来一看, 发现了异常: Wed Sep :: GMT+: WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be establis…
1 详细异常 ser class threw exception: java.sql.SQLException: The last packet successfully received from the server was 39,444 milliseconds ago. The last packet sent successfully to the server was 39,444 milliseconds ago. is longer than the server configu…
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C…
问题详情 来源是,我在Ambari集群里,安装Hue. 给Ambari集群里安装可视化分析利器工具Hue步骤(图文详解 所遇到的这个问题. 然后,去ambari-server的log日志,查看,如下 cat /var/log/ambari-server.log SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointe…