Hmm, didn't this get fixed in recent versions? I seem to remember that after the sd-bus port systemd started sending changed_properties with values, not just invalidated_properties... -- Mantas Mikulėnas <<a href="mailto:grawity@gmail.com">grawity@gmail.com</a>> // sent from phone <div class="gmail_quote">On Jun 11, 2014 12:59 PM, <<a href="mailto:David.Yates@continental-corporation.com">David.Yates@continental-corporation.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> Hi, We have written a component that detects failing units in the system. This registers for the PropertiesChanged signal, to be notified whenever the ActiveState of a unit changes. However this signal is sent without the property values. This can result in a problem when a unit is restarted fast (i.e. RestartSec=0) because we miss the "FailedState" and can not distinguish between a failed unit and a unit that was intentionally stopped and restarted. We looked at using the InactiveEnterTimestamp however there we also can not make the distinction. Does anyone have any ideas on how we could handle this problem (i.e. other properties that could be used)? In case there is no solution we wondered about introducing a new property (UnitFailedCount) to track the number of failures within the current lifecycle. Any thoughts?? Thanks Dave Software Architect System Software I IC RD G SW SSW HKT Continental Automotive GmbH Interior Infotainment & Connectivity Philipsstrasse 1, 35576 Wetzlar, Germany Telefon/Phone: <a href="tel:%2B49%206441%20370-8289" value="+4964413708289" target="_blank">+49 6441 370-8289</a> Mobile/Handy: <a href="tel:%2B49%20151%206522%209102" value="+4915165229102" target="_blank">+49 151 6522 9102</a> _______________________________________________ systemd-devel mailing list <a href="mailto:systemd-devel@lists.freedesktop.org">systemd-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/systemd-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/systemd-devel</a> </blockquote></div>