Public bug reported: Currently, the NTP module configures ntpd during cloud-init install by installing and configuring ntpd.
ntpd competes with systemd-timesyncd on systemd distros like Ubuntu Xenial. Ideally the NTP module should configure systemd-timesyncd where present, falling back to ntpd where not present. This stops two separate daemons (ntpd and systemd-timesyncd) competing with each other to set the time, where systemd-timesyncd (on Ubuntu at least) has an internal hardcoded compiled in timeserver to fall back on if no timeserver is configured (which is bad, but what can you do). The competing timeserver behaviour is invisible when the machine can see the net, but logs this error constantly when the machine cannot see the net: systemd-timesyncd[527]: Timed out waiting for reply from 91.189.94.4:123 (ntp.ubuntu.com). ** Affects: cloud-init Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to cloud-init. https://bugs.launchpad.net/bugs/1749722 Title: NTP: take into account systemd-timesyncd where present Status in cloud-init: New Bug description: Currently, the NTP module configures ntpd during cloud-init install by installing and configuring ntpd. ntpd competes with systemd-timesyncd on systemd distros like Ubuntu Xenial. Ideally the NTP module should configure systemd-timesyncd where present, falling back to ntpd where not present. This stops two separate daemons (ntpd and systemd-timesyncd) competing with each other to set the time, where systemd-timesyncd (on Ubuntu at least) has an internal hardcoded compiled in timeserver to fall back on if no timeserver is configured (which is bad, but what can you do). The competing timeserver behaviour is invisible when the machine can see the net, but logs this error constantly when the machine cannot see the net: systemd-timesyncd[527]: Timed out waiting for reply from 91.189.94.4:123 (ntp.ubuntu.com). To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1749722/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp