Antw: Re: Q: "dn: cn=Uptime,cn=Time,cn=Monitor" non-monotonic occasionally?

["Ulrich Windl" <Ulrich.Windl@rz.uni-regensburg.de>]

>>> Michael Ströder <michael@stroeder.com> schrieb am 29.04.2016 um 09:58 in
Nachricht <57231425.2080702@stroeder.com>:
> Ulrich Windl wrote:
>>>>> Michael Ströder <michael@stroeder.com> schrieb am 28.04.2016 um 19:26
in
>> Nachricht <572247C0.9030300@stroeder.com>:
>>> Ulrich Windl wrote:
>>>> 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.
>>>
>>> Uptime is the least usable time value for this task. Anyway...
>> 
>> What would you recommend instead?
> 
> Calculate the difference quotient over the real time which is supposed to
be
> monotonically increasing given your time sync setup is correct. If you 
> insist on
> reading it from cn=monitor it's cn=Current,cn=Time,cn=Monitor.

But for both cases I would be unable to detect a restart of the slapd. Rates
may seem negative then.

> 
> Ciao, Michael.