X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Fsd_notify.xml;h=a91c1bb4bf4c6893afaa7c85c6a34a0bbec3c7cf;hp=eb449555cb4437342c17d02cdcd8a5484783dc7f;hb=9946996cda11a18b44d82344676e5a0e96339408;hpb=5430f7f2bc7330f3088b894166bf3524a067e3d8
diff --git a/man/sd_notify.xml b/man/sd_notify.xml
index eb449555c..a91c1bb4b 100644
--- a/man/sd_notify.xml
+++ b/man/sd_notify.xml
@@ -156,12 +156,19 @@
WATCHDOG=1
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.
+ update the watchdog timestamp. This is
+ the keep-alive ping that services need
+ to issue in regular intervals if
+ WatchdogSec= is
+ enabled for it. See
+ systemd.service5
+ for details. It is recommended to send
+ this message if the
+ WATCHDOG_USEC=
+ environment variable has been set for
+ the service process, in every half the
+ time interval that is specified in the
+ variable.