[xymon] rrd change

Then the answer is simple. This applies to the memory test, which is a Xymon default or built-in test. So it gets special treatment. Change the name of your test, call it mem, or memory2 or anything else not already used, and treat it as a custom test. You need to add it the GRAPHS= TEST2RRD= and add an NCV_Testname in the hobbitserver.cfg and it should work. Just remember to create a corresponding entry in the hobbitgraph.cfg script, and changes to hobbitserver.cfg need a restart of the server. It should just work.

Cheers Vernon

On Thu, Jan 6, 2011 at 7:38 PM, Claessens Jurgen <Jurgen.Claessens at cegeka.be

wrote:

Hello,

Thanks all for helping so far, but i have found the culprit and I fear it can’t be solved unless they adjust the rrd program itself. Hard coded in rrd the line below is found so I think it’s impossible to go above 100% If any know a way please let me know.

        if ((actval >= 0) && (actval <= 100)) {

                    sprintf(rrdfn, "memory.actual.rrd");

                    sprintf(rrdvalues, "%d:%d", (int)tstamp, actval);

                    create_and_update_rrd(hostname, rrdfn,

memory_params, memory_tpl);

        }

*From:* Claessens Jurgen [mailto:Jurgen.Claessens at cegeka.be] *Sent:* donderdag 6 januari 2011 11:38 *To:* xymon at xymon.com *Subject:* RE: [xymon] rrd change

Hello,

The script send over an html file to the server. So the data in that end stays the same. The Text(X_Status) is just color coding.

Below you can see the HTML being generated. I checked the rrd file and as far as I can tell there’s no max limit set.

<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>

            <step> 300 </step> <!-- Seconds -->

            <lastupdate> 1294279930 </lastupdate> <!-- 2011-01-06

03:12:10 CET -->

            <ds>

                           <name> realmempct </name>

                           <type> GAUGE </type>

                           <minimal_heartbeat> 600 </minimal_heartbeat>

                           <min> 0.0000000000e+00 </min>

                           <max> NaN </max>



                           <!-- PDP Status -->

                           <last_ds> UNKN </last_ds>

                           <value> NaN </value>

                           <unknown_sec> 130 </unknown_sec>

            </ds>

*Script output*

objFile.WriteLine(Text(Global_Status))

objFile.WriteLine("<h3>" & Now & " - Memory " & Text(Global_Status) & "</h3>")

objFile.WriteLine("<table border=0>")

objFile.WriteLine("<tr align=right><td align=""left"" width=100>Memory</td><td width=100>Used</td><td width=100>Total</td><td width=100>Percentage</td><td width=40> </td></tr>")

objFile.WriteLine("<tr align=right><td align=""left"" style=""color:red"">&" & Text(Phys_Status) & " Physical</td><td>" & Round(Phys_Used) & "M</td><td>" & Round(Phys_Total) & "M</td><td>" & Round(Phys_Pct) & "%</td><td width=40> </td></tr>")

objFile.WriteLine("<tr align=right><td align=""left"" style=""color:blue"">&" & Text(Virt_Status) & " Virtual</td><td>" & Round(Virt_Used) & "M</td><td>" & Round(Virt_Total) & "M</td><td>" & Round(Virt_Pct) & "%</td><td width=40> </td></tr>")

objFile.WriteLine("<tr align=right><td align=""left"" style=""color:green"">&" & Text(Page_Status) & " Swap    </td><td>" & Round(Page_Used) & "M</td><td>" & Round(Page_Total) & "M</td><td>" & Round(Page_Pct) & "%</td><td width=40> </td></tr>")

objFile.WriteLine("</table>")

objFile.Close

Regards

*From:* Vernon Everett [mailto:everett.vernon at gmail.com] *Sent:* donderdag 6 januari 2011 10:38 *To:* xymon at xymon.com *Subject:* Re: [xymon] rrd change

Hmmm. That's interesting.

So, nothing is getting to the rrd file for the rrd graphing module to read.

Have you checked that the values are being sent through correctly? By this, I mean, when it exceeds 100%, is your script still sending data correctly? Do you have some code somewhere in your script that sends non-numeric output at 100 or over? Think in terms of what changes at 100 or above? You have moved from 2 characters to 3. Also, has the input to your script changes in some subtle way at 100%, which will change the output. Remember, for NCV to work, the output has to be fieldname : value on a line on their own. Any garbage will break it. Check especially for non-printable characters and control codes. Dump your output to a file, and use cat -v

Cheers Vernon

On Thu, Jan 6, 2011 at 4:53 PM, Claessens Jurgen < Jurgen.Claessens at cegeka.be> wrote:

Hello,

Thank you for the quick response. I checked the rrd data and it seems that no data is being written to the file when it exceeds 100%. Any idea where the problem could be located and how to fix it?

As I said below 100% it writes fine, so I’m guessing that it’s not the format that is sent to Xymon, but how rrd reads it?

Regards

*From:* Vernon Everett [mailto:everett.vernon at gmail.com] *Sent:* donderdag 6 januari 2011 9:15 *To:* xymon at xymon.com *Subject:* Re: [xymon] rrd change

First check the values in the rrd file. Make sure they are being written to the data file.

Next, check hobbitgraphs.cfg Your graph definition probably has -l 0 -u 100 Lower bound 0 Upper bound 100

Remove the -u 100, and the graph will automatically rescale itselft to the new data values.

Regards Vernon

On Thu, Jan 6, 2011 at 2:45 PM, Claessens Jurgen < Jurgen.Claessens at cegeka.be> wrote:

Hello,

I have an issue with a custom memory script I wrote. The script delivers everything fine and also the data is processed correctly in Xymon, but when the data goes above 100%, which it can, no more graphs are created. When it drops graphs are ok again. Does anyone know where/how exactly I need to modify the rrd so it accepts above 100% to create the graphs.

Thx in advance