Later to be combined in SRU Template Reasoning - snippest updated from
my old commit log to be readable here in the bug:
Cases of the codepath (Ubuntu Delta) that we intent to remove:
Case 1 - bug that it meant to fix initially:
- ntpd comes up and can not find peers to associate with
- an interface comes up
- stop ntpd
- sync time once with ntpdate-debian
- (re-)start ntpd (now able to find its peers, but it will throw away what
ntpdate just has set, so not worth)
Case 2 - more common case:
- ntpd comes up normally
- the admin brings interfaces up/down rather often
- ntp is restarted very very often due to this for no reason
=> That behavior is close to a bug on its own, which is the reason for
bugs like https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823533
Case 3 - still more common
- ntpd is installed but disabled (for whatever reason)
- all is fine on any ifup/down
- one installs ntpdate, maybe even without realizing due to a depends
- now on the next ifup ntpd (or openntpd) will be started
By dropping this section we fix it for Case 2 and Case 3.
Users of Case 1 still have no impact - their call to ntpdate will refuse to
change things as there is a running ntp.
Like:
$ /usr/sbin/ntpdate-debian
20 Jun 08:02:32 ntpdate[519]: the NTP socket is in use, exiting
And as outlined in Case 1 the running ntp would resync over it anyway.
If there was nothing running at all - well then the sync works and things are
fine still.
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https://bugs.launchpad.net/bugs/1593907
Title:
ntpdate startup routine prevents ntp service from launching up on
Ubuntu 16.04 server on system boot; manually starting ntp service
works: [FIX in DESCRIPTION], just need to apply it and release a new
version
Status in ntp package in Ubuntu:
Fix Released
Status in ntp source package in Xenial:
Triaged
Status in ntp source package in Yakkety:
Triaged
Status in ntp source package in Zesty:
Triaged
Bug description:
I've installed ntp service on the clean ubuntu 16.04 server system.
Configured it. Checked that it works, but, after reboot, it doesn't start
automatically.
When I check: 'systemctl is-enabled ntp', it shows enabled.
If I manually start it 'systemctl start ntp' it starts just fine and woks
correctly,
but until I manually start it, 'systemctl status ntp' shows:
Loaded: loaded (/etc/init.d/ntp; bad; vendor preset: enabled)
Active: inactive (deadi)
Installed 1.29ubuntu2 version of init-systems-helper, but it didn't
fix the problem.
Found a bugreport on ntpd package:
https://bugs.launchpad.net/ubuntu/+source/ntp/+bug/1577596
led to solution that involves a change to be made in file:
/etc/network/if-up.d/ntpdate
of ntpdate package
After changing from:
______________CODE_START______________
invoke-rc.d --quiet $service stop >/dev/null 2>&1 || true
# Avoid running more than one at a time
flock -n /run/lock/ntpdate /usr/sbin/ntpdate-debian -s $OPTS 2>/dev/null
|| :
invoke-rc.d --quiet $service start >/dev/null 2>&1 || true
______________CODE_END______________
to:
______________CODE_START______________
systemctl --quiet stop $service.service >/dev/null 2>&1 || true
# Avoid running more than one at a time
flock -n /run/lock/ntpdate /usr/sbin/ntpdate-debian -s $OPTS 2>/dev/null
|| :
systemctl --quiet start $service.service >/dev/null 2>&1 || true
______________CODE_END______________
ntpd service started launching on boot.
System Information:
lsb_release -rd:
Description: Ubuntu 16.04 LTS
Release: 16.04
apt-cache policy ntpdate:
ntpdate:
Установлен: 1:4.2.8p4+dfsg-3ubuntu5
Кандидат: 1:4.2.8p4+dfsg-3ubuntu5
Таблица версий:
*** 1:4.2.8p4+dfsg-3ubuntu5 500
500 http://ru.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
100 /var/lib/dpkg/status
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