[rrd-users] Re: Preventing counter wraps

[Tobias Oetiker]

Today you sent me mail regarding [rrd-users] Re: Preventing counter wraps:

*> 
*> Tobias Oetiker wrote:
*> > 
*> > *> What about a "nowrap" option to rrd_update ?
*> > 
*> > and how should this work? how should it distinguish between wrap
*> > and reboot ?
*> > 
*> 
*> Well, if my front end detects a reboot, then I could send the polled
*> value to rrd_update adding a "nowrap" flag. RRD would then skip the wrap
*> detection and (if counter and rrd_diff < 0) then recompute deltas from
*> this value.

OK you have a reboot at time=3323423 and your next read is at 3323983

rrdtool update 3323423:U 3323424:0 3323983:<value>

cheers
tobi

*> OK, I'm not a RRD expert, but I assume this from having read the
*> rrd_update sources. Probably I'm wrong, tell me.
*> 
*> 

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