It appears that Amazon Linux 2 use crony as NTP daemon, but according to timedatectl status the NTP synchronization is off:
[root@ip-192-168-254-114 /]# timedatectl status
Local time: Sun 2018-07-08 11:58:28 UTC
Universal time: Sun 2018-07-08 11:58:28 UTC
RTC time: Sun 2018-07-08 11:58:27
Time zone: n/a (UTC, +0000)
NTP enabled: yes
NTP synchronized: no
RTC in local TZ: no
DST active: n/a
[root@ip-192-168-254-114 /]#
It appears that Amazon Linux 2 use
crony
as NTP daemon, but according totimedatectl status
the NTP synchronization is off:In turns, this breaks Prometheus
timex
metric.