Lets break this into use cases in Bionic: I was not sure who should win in each case. We might either want the clear "order" chrony > ntp > openntp > systemd-timesyncd Or we might want a "last installed" approach, but that is hard as upgrades to not count here only real "install". What would "--reinstall" be in these cases? Maybe we should stick with the clear order, that at least seems more deterministic. Cases 4-6 try to cover testing that order invariancy.
This is an "ideal world" approach, not sure if we can achieve that in the short term. After the "=>" assignment is the service that should run (and only this one). 0. default install - systemd-timesyncd 1. default install - install chrony => Chrony 1b. - remove chrony => systemd-timesyncd 2. default install - install ntp => NTP 2b. - remove ntp => systemd-timesyncd 3. default install - install openntp => openntp 3b. - remove openntp => systemd-timesyncd 4. default install - install ntp, install chrony => Chrony 4b. remove chrony => NTP 4c. remove NTP => systemd-timesyncd 5. default install - install chrony, install NTP => Chrony 5b. remove Chrony => NTP 5c. remove NTP => systemd-timesyncd 6. default install - install openntp => openntp 6b. install NTP => NTP 6c. install chrony => chrony 6d. remote NTP & Chrony => openntp 6e. remove openntp => systemd-timesyncd 7. xenial with ntp - upgrade to B => NTP 8. xenial with ntp - upgrade to B, install chrony => Chrony 9. xenial with ntp - upgrade to B, remove NTP => systemd-timesyncd 10. xenial without ntp - upgrade to B => systemd-timesyncd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1764357 Title: start/stop of conflicting time services not well coordinated To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chrony/+bug/1764357/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
