[Xymon] combine status and data in same column with graph

[Asif Iqbal]

On Wed, Nov 13, 2013 at 7:39 PM, Jeremy Laidman <jlaidman at rebel-it.com.au>wrote:

> On 14 November 2013 03:52, Asif Iqbal <vadud3 at gmail.com> wrote:
>
>>  You might find that adjusting the TEST2RRD variable to include only
>>> "columname" and not "columnname=ncv" might do the trick.  The man page for
>>> xymond_rrd talks about the "ncv" part only being used for status messages.
>>>  But this is a long-shot.
>>>
>>
>> Looks like if I do not have  columnname=ncv it does not generate a rrd
>> file.
>>
>
> :-(
>
>
>> I did some clean up so nothing in MSG has NCV like data and I added the
>> NCV data in the <-- ... --> . It did create the rrd file with the correct
>> NCV keys, but values
>> are zeros. It is dropping the values for some reason? So I am almost
>> there if I can figure out why the values are not showing up.
>>
>
> Are the values you're reporting counter-type (that is, always
> incrementing) or gauge-type?  If you're sending gauge data and it's being
> treated as counter data, then you will often get mostly zeroes or NaN.  By
> default, NCV data is expected to be DERIVE which is a type of counter.  If
> you want to change to GAUGE, then you need to set NCV_columnname to
> describe this:
>
> NCV_columnname="foo:GAUGE,bar:GAUGE"
>

Yes mine are GAUGE type and I have the NCV_columnname="*:GAUGE" setup


>
> The other option would be using --extra-test and --extra-script and parse
>> the values from the status channel to generate rrd?
>>
>
> Perhaps.  These seem a lot trickier to use.
>
> One thought I had about this was to setup "--extra-test" and
> "--extra-script" on the status channel, to filter out the status messages
> from xymond_rrd.  If you use "--extra-script=/bin/true" and
> "--extra-test=columnname" then I think it will feed the data to "/bin/true"
> instead of parsing it itself.  Of course "/bin/true" will produce no
> output, and hence no data.
>


I can give that a try.



>
>
>>   I want the graph show up in the test page, so sending it to just
>> trends won't work, right?
>>
>
> Right.  It needs to be listed in TEST2RRD to show up in the test page.
>
> Hmm, just noticed this in the doco:
>
> "No graph on the status page, but OK on the trends page
> Make sure you have *ncv* listed in the GRAPHS setting in xymonserver.cfg.
> (Don't ask why - just take my word that it must be there)."
>
> Do you have "ncv" listed in GRAPHS?
>
>

Yes I have the columname in GRAPHS and columnname=ncv in TEST2RRD




-- 
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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