Major Description
Although Xenserver is configured to use NTP and ntp servers are reachable and servers can sync without anyproblems. there are frequent problems where time syncronization is lost.
[root@devil-c0113 ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
devil-fw-c01 162.23.41.10 2 u 56 64 377 0.612 379680. 1713.71
gowest.hojmark. 131.211.8.244 2 u 15 64 377 30.927 379920. 1717.02
epsilon.netinch 193.79.237.14 2 u 36 64 377 65.114 379799. 1716.53
And after a service restart:
[root@devil-c0113 ~]# service ntpd restart
Redirecting to /bin/systemctl restart ntpd.service
[root@devil-c0113 ~]# ntpq -p
remote refid st t when poll reach delay offset jitter
==============================================================================
*devil-fw-c01 162.23.41.10 2 u 1 64 1 0.630 11.739 0.000
www.mistersixt. 178.63.61.67 3 u 1 64 1 30.648 11.670 0.000
+skarabrae.draxi 131.188.3.222 2 u 2 64 1 45.338 1.989 0.000
This happens frequently. At least each two or three days.