[rrd-users] Short step records NaN

[Jaro Lepis]

Here is what I see:
If I run script sent to you on my local drive all is fine.
If I put that script on NFS mounted drive and run it there result is
different. (see xml below)
Both executed on very same server only difference it that NFS mnount ... weird


<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
        <step> 3 </step> <!-- Seconds -->
        <lastupdate> 1204393479 </lastupdate> <!-- 2008-03-01 09:44:39 PST -->

        <ds>
                <name> speed </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 6 </minimal_heartbeat>
                <min> NaN </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> UNKN </last_ds>
                <value> 0.0000000000e+00 </value>
                <unknown_sec> 0 </unknown_sec>
        </ds>

<!-- Round Robin Archives -->   <rra>
                <cf> AVERAGE </cf>
                <pdp_per_row> 1 </pdp_per_row> <!-- 3 seconds -->

                <params>
                <xff> 5.0000000000e-01 </xff>
                </params>
                <cdp_prep>
                        <ds>
                        <primary_value> 4.9010000000e+03 </primary_value>
                        <secondary_value> 4.5366666667e+03 </secondary_value>
                        <value> NaN </value>
                        <unknown_datapoints> 0 </unknown_datapoints>
                        </ds>
                </cdp_prep>
                <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>
        </rra>
</rrd>


2008/3/3 Alex van den Bogaerdt <alex at ergens.op.het.net>:
> On Mon, Mar 03, 2008 at 08:58:53AM -0800, Jaro Lepis wrote:
>  > Sorry for repost.
>  > (I had a digest subscription and could not reply..)
>  >
>  > Thanks for response.
>  > I did not find solution. Here is the script.
>  >
>  [snip script]
>
>  this seems to work just fine, see attached xml result.
>
>  Yours is different?
>  --
>  Alex van den Bogaerdt
>  http://www.vandenbogaerdt.nl/rrdtool/
>
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