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

[Till Dörges]

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 :-)
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