[rrd-users] Short step records NaN

[Alex van den Bogaerdt]

On Sun, Mar 02, 2008 at 12:28:52AM -0800, Jaro Lepis wrote:
>                 <database>
>                         <!-- 2008-03-01 09:44:12 PST / 1204393452 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:15 PST / 1204393455 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:18 PST / 1204393458 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:21 PST / 1204393461 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:24 PST / 1204393464 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:27 PST / 1204393467 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:30 PST / 1204393470 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:33 PST / 1204393473 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:36 PST / 1204393476 -->
> <row><v> NaN </v></row>
>                         <!-- 2008-03-01 09:44:39 PST / 1204393479 -->
> <row><v> 4.9010000000e+03 </v></row>
>                 </database>

                <database>
                        <!-- 2008-03-01 18:44:12 CET / 1204393452 --> <row><v> 2.7790000000e+03 </v></row>
                        <!-- 2008-03-01 18:44:15 CET / 1204393455 --> <row><v> 3.2256666667e+03 </v></row>
                        <!-- 2008-03-01 18:44:18 CET / 1204393458 --> <row><v> 3.2256666667e+03 </v></row>
                        <!-- 2008-03-01 18:44:21 CET / 1204393461 --> <row><v> 3.7300000000e+03 </v></row>
                        <!-- 2008-03-01 18:44:24 CET / 1204393464 --> <row><v> 3.9570000000e+03 </v></row>
                        <!-- 2008-03-01 18:44:27 CET / 1204393467 --> <row><v> 4.1003333333e+03 </v></row>
                        <!-- 2008-03-01 18:44:30 CET / 1204393470 --> <row><v> 4.2920000000e+03 </v></row>
                        <!-- 2008-03-01 18:44:33 CET / 1204393473 --> <row><v> 4.5366666667e+03 </v></row>
                        <!-- 2008-03-01 18:44:36 CET / 1204393476 --> <row><v> 4.5366666667e+03 </v></row>
                        <!-- 2008-03-01 18:44:39 CET / 1204393479 --> <row><v> 4.9010000000e+03 </v></row>
                </database>


Are you sure you are dumping the same database as you are updating?

Create a *complete* script generating a database, updating it and dumping it.
Please do not use absolute pathnames (such as "/data/x.rrd", use "x.rrd").

If you then have not yet found the problem, post the script here.


-- 
Alex van den Bogaerdt
http://www.vandenbogaerdt.nl/rrdtool/