On Thu, Apr 28, 2016 at 6:48 PM, Ulrich Windl < ulrich.wi...@rz.uni-regensburg.de> wrote:
> Hi! > > I'm running a NRPE monitor that monitors openLDAP. To compute delta > values, the NRPE plugin stores the "dn: cn=Uptime,cn=Time,cn=Monitor" > reported by openLDAP to compare it with the current value (to build the > time difference). If the time difference is negative, the plugin reports a > "server restart" event. > > So far, so good... > > However, very rarely (once every few weeks) a false server restart is > reported. Viewing the historic logs, I can only assume that openLDAP > reports a bad uptime value now and then. Could this be? > If uptime is a calculation based on the system clock, is there some process such as ntpd or vmware tools, periodically updating the system clock, sometimes backwards ? If so, maybe look for an option to limit backwards updates. Cheers Brett
