问题描述：
刷新nagios页面的时候，有时候会刷出以前的页面，有时候是正常的页面，但是并不影响故障报警，监控日志出现如下现象
Jan 22 18:27:41 hf-vpn nagios: Warning: The check of service 'CPU Load' on host 'DBSERVER' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the service...
Jan 22 18:27:41 hf-vpn nagios: Warning: The check of service 'CPU Load' on host 'PZSERVER' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the service...
Jan 22 18:27:41 hf-vpn nagios: Warning: The check of service 'Memory Usage' on host 'VIACONTROL' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the service...
Jan 22 18:27:41 hf-vpn nagios: Warning: The check of service 'Uptime' on host 'VIACONTROL' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the service...
Jan 22 18:27:41 hf-vpn nagios: Warning: The check of service 'PING' on host 'localhost' looks like it was orphaned (results never came back). I'm scheduling an immediate check of the service...
问题原因：
找了几天出问题的地方，都没有找到，论坛有说重启nagios服务器就好了，但是不知道为什么，后来终于查出了出错的原因：开了两个nagios进程
结束,nagios进程,重新启动服务.
