[2016-02-24 12:00:21,799: WARNING/MainProcess] celery@localhost.localdomain ready. [2016-02-24 12:00:22,297: WARNING/MainProcess] Substantial drift from celery@centos7-181 may mean clocks are out of sync. Current drift is 70 seconds. [orig: 2016-02-24 12:00:22.297798 recv: 2016-02-24 11:59:12.438481] [2016-02-24 12:00:22,300: WARNING/MainProcess] Substantial drift from celery@centos7-xiaoqiao may mean clocks are out of sync. Current drift is 764 seconds. [orig: 2016-02-24 12:00:22.300171 recv: 2016-02-24 11:47:38.863792] [2016-02-24 12:00:22,302: WARNING/MainProcess] Substantial drift from celery@centos7-186 may mean clocks are out of sync. Current drift is 65 seconds. [orig: 2016-02-24 12:00:22.302378 recv: 2016-02-24 11:59:17.157844] [2016-02-24 12:00:22,303: WARNING/MainProcess] Substantial drift from celery@centos7-182 may mean clocks are out of sync. Current drift is 70 seconds. [orig: 2016-02-24 12:00:22.303616 recv: 2016-02-24 11:59:12.633749] [2016-02-24 12:00:22,306: WARNING/MainProcess] Substantial drift from celery@centos7-189 may mean clocks are out of sync. Current drift is 64 seconds. [orig: 2016-02-24 12:00:22.306499 recv: 2016-02-24 11:59:18.100351] [2016-02-24 12:00:22,307: WARNING/MainProcess] Substantial drift from celery@centos7-188 may mean clocks are out of sync. Current drift is 65 seconds. [orig: 2016-02-24 12:00:22.307066 recv: 2016-02-24 11:59:17.197479] [2016-02-24 12:00:22,310: WARNING/MainProcess] Substantial drift from celery@centos7-184 may mean clocks are out of sync. Current drift is 64 seconds. [orig: 2016-02-24 12:00:22.309941 recv: 2016-02-24 11:59:18.490792] [2016-02-24 12:00:22,524: WARNING/MainProcess] Substantial drift from celery@centos7-183 may mean clocks are out of sync. Current drift is 64 seconds. [orig: 2016-02-24 12:00:22.524618 recv: 2016-02-24 11:59:18.005931] [2016-02-24 12:00:22,525: WARNING/MainProcess] Substantial drift from celery@centos7-187 may mean clocks are out of sync. Current drift is 70 seconds. [orig: 2016-02-24 12:00:22.525161 recv: 2016-02-24 11:59:12.294425] [2016-02-24 12:00:22,525: WARNING/MainProcess] Substantial drift from celery@centos7-185 may mean clocks are out of sync. Current drift is 65 seconds. [orig: 2016-02-24 12:00:22.525489 recv: 2016-02-24 11:59:17.309409]