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| author | Peter A. Bigot <pab@pabigot.com> | 2018-04-09 13:39:16 -0500 |
|---|---|---|
| committer | Peter A. Bigot <pab@pabigot.com> | 2018-04-14 09:52:40 -0500 |
| commit | 2dd79846ddd5f31aaf178eb3457677139e38fac0 (patch) | |
| tree | 4cb0f47df662847dbee21579cb56a3e798ba14e6 /man/systemd-timesyncd.service.xml | |
| parent | 006ffa6421f763abc74b5cc03f55a8d9ee84325d (diff) | |
| download | systemd-2dd79846ddd5f31aaf178eb3457677139e38fac0.tar.gz | |
time-wait-sync: use watchfile to coordinate with timesyncd
Systems that have an accurate real-time clock may have an initial
unsynchronized time that is close enough to the synchronized time that
the final adjustment doesn't trigger a waking "clock set" event. Have
timesyncd touch a file in its runtime directory as a secondary signal
for synchronization. Continue to support the timerfd-based trigger as a
sufficient condition when the watchfile is not present.
Closes issue #8683
Diffstat (limited to 'man/systemd-timesyncd.service.xml')
| -rw-r--r-- | man/systemd-timesyncd.service.xml | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/man/systemd-timesyncd.service.xml b/man/systemd-timesyncd.service.xml index 26f783767b..49e00e2b91 100644 --- a/man/systemd-timesyncd.service.xml +++ b/man/systemd-timesyncd.service.xml @@ -80,10 +80,21 @@ <term><filename>/var/lib/systemd/timesync/clock</filename></term> <listitem> - <para>This file contains the timestamp of the last successful + <para>The modification time of this file indicates the timestamp of the last successful synchronization.</para> </listitem> </varlistentry> + + <varlistentry> + <term><filename>/run/systemd/timesync/synchronized</filename></term> + + <listitem> + <para>A file that is touched on each successful synchronization, to assist + <filename>systemd-time-wait-sync</filename> and other applications to detecting synchronization + events.</para> + </listitem> + + </varlistentry> </variablelist> </refsect1> @@ -94,6 +105,7 @@ <citerefentry><refentrytitle>timesyncd.conf</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd.network</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry><refentrytitle>systemd-networkd.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemd-time-wait-sync.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>, <citerefentry><refentrytitle>timedatectl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, <citerefentry><refentrytitle>localtime</refentrytitle><manvolnum>5</manvolnum></citerefentry>, <citerefentry project='man-pages'><refentrytitle>hwclock</refentrytitle><manvolnum>8</manvolnum></citerefentry> |