crontab执行时区与系统时间不一致问题

[root@lock data]# tail -f /var/log/cron    
Jun 15 06:50:05 lock crond[8517]: (CRON) INFO (running with inotify support)
Jun 15 06:50:05 lock crond[8517]: (CRON) INFO (@reboot jobs will be run at computer's startup.)
Jun 15 06:50:19 lock crontab[8535]: (root) BEGIN EDIT (root)

[root@lock data]# date      
Thu Jun 15 02:49:57 EDT 2017

 2个时间完全不一致，所以导致我写的一些定时器脚本在错误的时间执行。为了修正2者的差距，第一步是在修改了时区后需要重启crond定时器服务

[root@lock data]# service crond restart
Stopping crond:                                            [  OK  ]
Starting crond:                                            [  OK  ]

 如果发现时间还是不正确，可能是rsyslog日志服务没有重启，然后在一次重启crond定时器服务

[root@lock data]# service rsyslog restart
Shutting down system logger:                               [  OK  ]
Starting system logger:                                    [  OK  ]

 最后去查询日志发现时间已经修正

[root@lock data]# tail -f /var/log/cron
Jun 15 06:50:39 lock crond[8517]: (CRON) INFO (Shutting down)
Jun 15 06:50:39 lock crond[8569]: (CRON) STARTUP (1.4.4)
Jun 15 06:50:39 lock crond[8569]: (CRON) INFO (RANDOM_DELAY will be scaled with factor 55% if used.)
Jun 15 06:50:39 lock crond[8569]: (CRON) INFO (running with inotify support)
Jun 15 06:50:39 lock crond[8569]: (CRON) INFO (@reboot jobs will be run at computer's startup.)
Jun 15 02:54:25 lock crond[8569]: (CRON) INFO (Shutting down)
Jun 15 02:54:25 lock crond[8830]: (CRON) STARTUP (1.4.4)
Jun 15 02:54:25 lock crond[8830]: (CRON) INFO (RANDOM_DELAY will be scaled with factor 74% if used.)
Jun 15 02:54:25 lock crond[8830]: (CRON) INFO (running with inotify support)
Jun 15 02:54:25 lock crond[8830]: (CRON) INFO (@reboot jobs will be run at computer's startup.)