ruby rrdtool.fetch returns unknown format and data

[human]

From: Kim.toms@…

I'm using rrdtool from ruby. To make sparklines in my application, I have a statement like: data=RRDtool.new('/var/rrd/28.3616F1010000.rrd').fetch(['AVERAGE','-s',Time.now.to_i-600])

The RRD has a series of data in it, mostly floats between 0 and 25 or so. When I fetch data, I get the following structure out: [1242747120, 1242747780, Temperature?, 18.61693700625], [18.625], [18.625], [18.625], [18.67994234375], [18.6318305510417], [18.6801461447917], [18.6875], [18.6875], [18.6875], [NaN], [0.0?]

but sometimes I get: [1242747120, 1242747780, Temperature?, 18.61693700625], [18.625], [18.625], [18.625], [18.67994234375], [18.6318305510417], [18.6801461447917], [18.6875], [18.6875], [18.6875], [NaN], [1.23755530374873e+214?]

I can't find any documentation of the format of the output. Anyone have any idea what that number at the end is?

[oetiker]

hmm that seems odd ... please test with the latest rrdtool version and the included ruby bindings ...