MyRepubic hit this issue in their production on OSP9 which caused an outage as Ceph monitors misbehaved due to clock skew and stopped writing to storage. Requesting for a backport to OSP9
Verified on build: [stack@undercloud-0 ~]$ cat /etc/yum.repos.d/latest-installed 9 -p 2017-04-07.5 After reboot: [heat-admin@controller-0 ~]$ timedatectl Local time: Thu 2017-04-20 09:04:41 UTC Universal time: Thu 2017-04-20 09:04:41 UTC RTC time: Thu 2017-04-20 09:04:40 Time zone: UTC (UTC, +0000) NTP enabled: yes NTP synchronized: yes RTC in local TZ: no DST active: n/a
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2017:1251