diff options
Diffstat (limited to 'man/sd_notify.xml')
| -rw-r--r-- | man/sd_notify.xml | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/man/sd_notify.xml b/man/sd_notify.xml index eb449555cb..a91c1bb4bf 100644 --- a/man/sd_notify.xml +++ b/man/sd_notify.xml @@ -156,12 +156,19 @@ <term>WATCHDOG=1</term> <listitem><para>Tells systemd to - update the watchdog timestamp. - Services using this feature should do - this in regular intervals. A watchdog - framework can use the timestamps to - detect failed - services.</para></listitem> + update the watchdog timestamp. This is + the keep-alive ping that services need + to issue in regular intervals if + <varname>WatchdogSec=</varname> is + enabled for it. See + <citerefentry><refentrytitle>systemd.service</refentrytitle><manvolnum>5</manvolnum></citerefentry> + for details. It is recommended to send + this message if the + <varname>WATCHDOG_USEC=</varname> + environment variable has been set for + the service process, in every half the + time interval that is specified in the + variable.</para></listitem> </varlistentry> </variablelist> |