[drraw-users] pnp4nagios & drraw

[Jeremy Jacquier-Roux]

Hello,
Thanks for your answer.
If I don't prefix the data source names, drraw can't use my rrd file to 
make a graph.
Without pnp4nagios, you can test this with two commands :
rrdtool create test_DS_num.rrd --step 300   DS:1:GAUGE:600:-273:5000   
RRA:AVERAGE:0.5:1:1200   RRA:MIN:0.5:12:2400   RRA:MAX:0.5:12:2400   
RRA:AVERAGE:0.5:12:2400
rrdtool create test_DS_string.rrd --step 300   
DS:MY_DS_1:GAUGE:600:-273:5000   RRA:AVERAGE:0.5:1:1200   
RRA:MIN:0.5:12:2400   RRA:MAX:0.5:12:2400   RRA:AVERAGE:0.5:12:2400
Then after refreshing the database files available under drraw.cgi, when 
you select test_DS_num and click "Add DB(s) to data sources", the cgi 
show the message in my previous mail.
But if you select test_DS_string you can make a graph.
Regards


Christophe Kalt wrote:
> Hi,
>
> On Mon, Nov 17, 2008 at 9:31 AM, Jeremy Jacquier-Roux <jaj at teamlog.com 
> <mailto:jaj at teamlog.com>> wrote:
>
>     I have some rrd files generated with pnp for nagios. I would like to
>     make nicer graph with drraw (2.2b1) but I have a problem (same than D.
>     Morel - thread "no event file" Wed Jun 25 10:31:12 EDT 2008), the cgi
>     show me this message :
>     "The first step in creating a graph is to choose which data to
>     use. This
>     is done by selecting Data Sources from available databases and event
>     files. Only one type of Data Source (either database or event
>     file) may
>     be added at the same time."
>     I don't think this is a problem of event file. I think the problem
>     is on
>     the way of drraw manage data sources names.
>
>
> That's the normal/expected behaviour.
>
>     Because by default, pnp4nagios create rrd file using number for data
>     sources names :
>     ds[1], ds[2]...
>     But if I modify /usr/libexec/pnp4nagios/process_perfdata.pl to prefix
>     data sources names with a string, drraw works fine and I can make
>     graph.
>     Do you have an idea to fix this in drraw?
>
>
> i don't understand what needs fixing..  what doesn't work if you don't 
> prefix the data source names?