[rrd-users] Re: this script produces NaN for data

[Alex van den Bogaerdt]

On Thu, Nov 13, 2003 at 11:04:44PM +0100, Alex van den Bogaerdt wrote:
> On Thu, Nov 13, 2003 at 12:25:12PM -0800, Hunter Peress wrote:
> > Run the below script first with an arg, thena  few times without an arg.
> > then run rrdtool dump test.rrd and you'll see that the data is NaN.
> > 
> > why ?
> 
> <!-- Round Robin Archives -->
> 	<rra>
> 		<cf> AVERAGE </cf>
> 		<pdp_per_row> 1 </pdp_per_row> <!-- 300 seconds -->
> 		<xff> 5.0000000000e-01 </xff>
> 
> 		<cdp_prep>
> 			<ds><value> NaN </value>  <unknown_datapoints> 0 </unknown_datapoints></ds>
> 			<ds><value> NaN </value>  <unknown_datapoints> 0 </unknown_datapoints></ds>
> 		</cdp_prep>
> 		<database>
> 			<!-- 2003-11-13 22:55:00 CET / 1068760500 --> <row><v> NaN </v><v> NaN </v></row>
> 			<!-- 2003-11-13 23:00:00 CET / 1068760800 --> <row><v> 2.4766560356e+07 </v><v> 2.3933351356e+07 </v></row>
> 		</database>
> 	</rra>
> </rrd>
> 
> 
> Nothing wrong with rrdtool.

<!-- Round Robin Archives -->
	<rra>
		<cf> AVERAGE </cf>
		<pdp_per_row> 1 </pdp_per_row> <!-- 300 seconds -->
		<xff> 5.0000000000e-01 </xff>

		<cdp_prep>
			<ds><value> NaN </value>  <unknown_datapoints> 0 </unknown_datapoints></ds>
			<ds><value> NaN </value>  <unknown_datapoints> 0 </unknown_datapoints></ds>
		</cdp_prep>
		<database>
			<!-- 2003-11-13 23:00:00 CET / 1068760800 --> <row><v> 2.4766560356e+07 </v><v> 2.3933351356e+07 </v></row>
			<!-- 2003-11-13 23:05:00 CET / 1068761100 --> <row><v> 2.5341273000e+07 </v><v> 2.4508064000e+07 </v></row>
		</database>
	</rra>
</rrd>

still nothing wrong with rrdtool.

I think I'm going to quit wasting time now.

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