[mrtg] FW: Re: Polling Interval Again

[David Sawyer]

> As for the 1 second step, it may be a forced run of mrtg, and I'm not sure
> how far down it starts doing the 5 minute consolidation.  Maybe >5 minutes
> from now?  So between the most recent sample and the next 5 minute slice,
> it doesn't care about what goes in.  All it knows is that at 997340700 it
> got an update, and the next consolidation period is going to be 997341000.
> You could probably have 10 entries or more in between now and -300
> seconds.  Rateup will just ignore everything prior to the latest
> consilidation point, or 997340700.  
> 
Above is an explanation why the 2 min gap work between the last two polls
from Paul C Williamson.

My theory of the 1 second step is that rateup may round up to the next 5 min
step.

ie
Polling every 2 mins (I've removed 9973 from the time stamps)

Acutal polling ------rounded up by
time (2 mins) -------Rateup to 5 mins
40701 -------------- 40701
40581 -------------- 40700
40461 -------------- 40700
40341 -------------- 40400
40221 -------------- 40400
40101 -------------- 40400
39981 -------------- 40100

40101 will be rounded up to 40400 and so will 40221 and also 40341
40461 will be rounded up to 40700 and so will 40581
40701 will be ignored and stay as it is because it's within the last 5 mins.

Well that's my theory anyway and I appologise for boring anybody to sleep
with this :-)

David Sawyer


> Ignore the first line
> > 997340821 26 22 
> > 997340821 26 22 26 22 
> 120 seconds gap or 2 mins it's worked here
> > 997340701 37 23 37 23 
> A one second gap ????? anybody have a comment why this should be?
> > 997340700 33 23 37 24 
> 300 seconds gap or 5 mins
> > 997340400 38 22 56 26 
> 300 seconds gap or 5 mins
> > 997340100 29 22 33 24 
> 300 seconds gap or 5 mins
> > 997339800 33 22 41 23 
> 300 seconds gap or 5 mins
> > 997339500 41 22 56 24 
> 300 seconds gap or 5 mins
> > 997339200 35 21 56 25 
> > 
> Looks like it works between the last two polls, after that your back to 5
> mins.
> 
> 
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