PS: 如果服务器程序不忽略SIGPIPE,在某些时候TCP writer收到这个信号,会导致进程退出 The rule that applies is: When a process writes to a socket that has received an RST, the SIGPIPE signal is sent to the process. The default action of this signal is to terminate the process, so the
mysql数据库连接异常问题(总结) 1.1 前言 最近项目由1个数据源增加至了3个数据源(连接池使用C3P0),结果各种奇葩的数据库连接问题接踵而至,为防止将来再次遇到同样的问题不犯同样错误,现总结如下. 1.2 An attempt by a client to checkout a Connection has timed out (连接超时) 这种情况基本是网络不稳定导致的:再者就是数据源配置参数有异常. 1.3 com.mysql.jdbc.exceptions.jdbc4.C