[rrd-users] Behavior of 'rrdtool dump' changed after/around 1.3.4? (cdp_prep.value changed from NaN to 0)

Till Dörges doerges at pre-sense.de
Mon Dec 12 20:46:51 CET 2011


Hi all,

I've been using RRDtool 1.3.4. After updating to 1.4.5 the output of 'rrdtool dump'
(and rrdtool info) changed.


rrdtool dump for 1.3.4 (and earlier afaics) used to give something like this for one
of my files:

--- snip ---
    <cdp_prep>
            <ds>
            <primary_value> NaN </primary_value>
            <secondary_value> NaN </secondary_value>
            <value> NaN </value>
            <unknown_datapoints> 0 </unknown_datapoints>
            </ds>
--- snap ---

The current version (1.4.5) returns 0 instead of NaN:
--- snip ---
            <value> 0,0000000000e+00 </value>
--- snap ---


Is this safe to ignore? (And out of curiosity, what's the meaning of this change?)


TIA -- Till :-)
-- 
Dipl.-Inform. Till Dörges                  doerges at pre-sense.de
                                  Tel. +49 - 40 - 244 2407 - 14
                                  Fax  +49 - 40 - 244 2407 - 24
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Till Dörges           Jürgen Sander              Axel Theilmann



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