[rrd-users] Re: rrdupdate with UNKNOWN and 0 value

[Salvatore D. Tepedino]

On Mon, 2005-07-25 at 09:23 +0200, ralf-buero at kruedewagen.de wrote:
> Hello,
> 
> is there really nobody who can explain this behaviour:
> 
> After creating a new database, the first update with "rrdtool update 
> <file> N:U:0" stores NaN values for both DS. Then, the second update 
> stores two 0 values for both DS ! But I would expect to store (and 
> keep) NaN for DS1 and 0 only for DS2. This seems to be a bug, at 
> least for me.

I've had this exact problem, but not with just 2 data points. I had
several where just 1 was unknown, about 2 were 0 and 3 or so more were
various values. The unknown value was only stored as 0.
Unfortunately, the only solution I had was to recreate the rrd file w/
version 1.0.x. Then the value was correctly stored as unknown. Might not
be the solution you're looking for, but it worked for me. This seems
like a bug in 1.2 to me...

-- 
Salvatore D. Tepedino <rrdtool at tepedino.org>

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