09:00:30.307 [http-8080-6] ERROR org.hibernate.transaction.JDBCTransaction -JDBC begin failed com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure The last packet successfully received from the server was 56,237,340 mi…
报错: MySQL第二天早上第一次连接超时报错, com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure 原因: 上述问题是由mysql5数据库的配置引起的.mysql5将其连接的等待时间(wait_timeout .interactive_timeout)缺省为8小时.在其客户程序中可以这样来查看其值: mysql> show global variables like 'wait…
Ubuntu下使用 su 切换到超级用户时候遇到下面的问题 su: Authentication failure 解决办法: $ sudo passwd root Enter new UNIX password: Retype new UNIX password: passwd: password updated successfully…
问题描述:安装jdk1.8之后,输入java -version查看安装是否成功之后,报错: 报错如下: Error: dl failure on line 893 Error: failed /usr/java/jdk1.8.0_144/jre/lib/i386/client/libjvm.so, because /usr/java/jdk1.8.0_144/jre/lib/i386/client/libjvm.so: cannot restore segment prot after re…