[Orca-users] Re: nan errors

Blair Zajac blair at akamai.com
Mon Mar 13 23:22:25 PST 2000

If the interval in the config file is shorter than the real time data,
then some percentage of the measurements in the RRD file will
be NAN, since there is no measurement to fill that time interval.

Always keep the two intervals the same.

If you still have the old data saved, you can delete the old RRD
files, set the interval correctly, and restart orca.


mick at iprolink.ch wrote:

> From: mick at iprolink.ch
> Hi,
> I am sure that the interval in the config file is shorter
> than the real time I collect data.  I am collecting
> thousands of values each cycle, and of course the little
> machine I have dedicated for this can't keep up.
> Should I make the interval number larger, or is there
> some other way to get rid of the NaNs?  I already tried
> makeing late_interval interval * 2, but perhaps that
> is not enough.
> Thanks,
> Mickey
> >
> > Is the interval time in orcallator.cfg the same as orcallator is
> > recording
> > data?  This may account for it.
> >
> > How is the data showing up as NAN's.  I'm guessing the plots are not
> > showing anything?  Have you checked the orcallator.se output files. Is
> > there data there at those times?  Is the number of columns different
> > at those times than at the top of the file?
> >
> > Blair
> >
> > Mickey Coggins wrote:
> > >
> > > I get a lot of "nan" errors in my RRD files.  This is an old problem,
> > > and I still have it with .26.  What causes this?
> > >
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