启动时间和日志的不对应：
[root@localhost log]# ps -eo pid,lstart,etime |grep 7417
7417 Mon May 23 17:01:32 2016 13-16:30:20
日志如下：
Jun 4 22:01:01 localhost crond[17071]: (root) CMD (run-parts /etc/cron.hourly)
Jun 4 23:01:01 localhost crond[17175]: (root) CMD (run-parts /etc/cron.hourly)
Jun 4 23:40:01 localhost crond[17245]: (root) CMD (/bin/sh /apps/tomcat6/bin/shutdown.sh)
Jun 4 23:50:01 localhost crond[17282]: (root) CMD (/bin/sh /apps/tomcat6/bin/startup.sh)
Jun 5 00:01:01 localhost crond[17318]: (root) CMD (run-parts /etc/cron.hourly)
Jun 5 01:01:01 localhost crond[17422]: (root) CMD (run-parts /etc/cron.hourly)
