参考文档：
http://serverfault.com/questions/662161/rrdtool-illegal-attempt-to-update
https://emacstragic.net/collectd-causing-rrd-illegal-attempt-to-update-using-time-errors/
https://support.nagios.com/forum/viewtopic.php?f=7&t=26087
rrdtool plugin: rrd_update_r(04-8H97FUF7CT79U/df/df-mnt-ephemeral-cln-application-languages.rrd) failed:04-8H97FUF7CT79U/df/df-mnt-ephemeral-cln-application-languages.rrd: illegalattempt to update using time 1486212635 when last update time is 2038724840(minimum one second step)
解决方法：
本文转自chenzudao51CTO博客，原文链接：
http://blog.51cto.com/victor2016/1895408
，如需转载请自行联系原作者
