[Xymon] rrd files not getting created. - SUMMARY

Wed Dec 7 17:43:11 CET 2016

You don’t have a complete install of xymon.

Do you have rrdtool and rrdtool-devel installed?

From: navraj shrestha [mailto:shresthanav17 at gmail.com]
Sent: Wednesday, December 07, 2016 10:21 AM
To: Root, Paul T; xymon at xymon.com
Subject: Re: [Xymon] rrd files not getting created. - SUMMARY

Yes this is  a new install on Rhel 7.2, xymon 4.3.27
I haven't got any graphs, not in trends too.
checked for showgraph.sh in cgi-bin , it doesn't exist there
 <Directory "/usr/lib/xymon/cgi-bin">
So what do I have to do now,
and my rrd directory is also empty.

Thanks

On Wed, Dec 7, 2016 at 8:47 AM, Root, Paul T <Paul.Root at centurylink.com<mailto:Paul.Root at centurylink.com>> wrote:
Sorry, I saw this yesterday, but then got side tracked, and didn’t answer.

First, NEVER remove the mailing list, there are so many guys that know so much more about xymon than I  do. And that goes for just about everyone except maybe Henrik and JC.

So this looks like a configuration issue in general, not a failed custom graph.

Do you get graphs for anything? In trends of in specific tests?
Does showgraph.sh exist in you xymon-cgi directory?    You can find you  xymon-cgi directory location in the xymon-apache.conf file, which should be in  your httpd configuration directory.
Is this a new install?
What version of xymon are using, and what operating system?

From: navraj shrestha [mailto:shresthanav17 at gmail.com<mailto:shresthanav17 at gmail.com>]
Sent: Monday, December 05, 2016 6:34 PM
To: Root, Paul T
Subject: Re: [Xymon] rrd files not getting created. - SUMMARY

thanks Root for your reply,

When I click magnifying glass I get this error"The requested URL /xymon-cgi/showgraph.sh was not found on this server". And I am not creating a custom graphs, Do I have to make any changes to xymonserver.cfg?

Thanks

Navraj

On Mon, Dec 5, 2016 at 9:28 AM, Root, Paul T <Paul.Root at centurylink.com<mailto:Paul.Root at centurylink.com>> wrote:
I thought I would just summarize my experience.

It is important that the rrd file you want to create doesn’t exist before you do the restart of the xymond_rrd processes. It is VERY finicky.

Then moving onto the graph creation.   I stumbled on debugging information. If the graph isn’t created, click on the magnifying glass next to it, and it will give you an error message, that is a clue as to why the graph wasn’t made.

Also, the example on “Custom Graphs” page is invalid. It doesn’t work. The %s in the GPRINTs are invalid. I also had a typo with DEV instead of DEF, and we all know the V vs F issue with the human mind.
When creating a graph, start very simple, just TITLE, YAXIS and DEF lines, and then add things one at a time to get what you want.

Paul.

From: Root, Paul T
Sent: Thursday, December 01, 2016 11:12 AM
To: Root, Paul T; xymon at xymon.com<mailto:xymon at xymon.com>
Subject: RE: [Xymon] rrd files not getting created.

Ok, I took the changes out. restarted xymon, waited a half hour, put them back in,  and it created the rrd file.

HOWEVER, it only put it in once, and no updates:

<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd">
<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
        <step> 300 </step> <!-- Seconds -->
        <lastupdate> 1480607277 </lastupdate> <!-- 2016-12-01 09:47:57 CST -->

        <ds>
                <name> ucfthreads </name>
                <type> GAUGE </type>
                <minimal_heartbeat> 600 </minimal_heartbeat>
                <min> NaN </min>
                <max> NaN </max>

                <!-- PDP Status -->
                <last_ds> 92 </last_ds>
                <value> 1.6284000000e+04 </value>
                <unknown_sec> 0 </unknown_sec>
        </ds>

<!-- Round Robin Archives -->   <rra>

And the script runs every 5 minutes from clientlaunch.cfg.

From: Xymon [mailto:xymon-bounces at xymon.com] On Behalf Of Root, Paul T
Sent: Thursday, December 01, 2016 9:55 AM
To: xymon at xymon.com<mailto:xymon at xymon.com>
Subject: [Xymon] rrd files not getting created.

Where do I go look to figure out why the rrd file is not getting created?

I have a script that produces output like this with a test name of ‘ucf’:

green

ucf_threads  :    14

And that is all I’m sending currently. At this point, it’s a simulated script and then number is between 1-100.

In xymonserver.cfg I have

TEST2RRD=”….,ucf=ncv”
NCV_ucf="ucfthreads:GAUGE"

I have two servers. My production, and a test server, with this config, and the test server briefly created the rrd,  then I renamed the test (from myg to ucf), c hanged the TEST2RRD and NCV_myg to NCV_ucf.

I’ve restarted xymon completely, and killed the xymond_rrd processes.  Nothing shows up in rrd_status.log or rrd_data.log

All the machines are CentOS 6 running xymon 4.3.21. We have successfully got custom graphs working in the past, but no luck at this point.
Ultimately, I believe the script will live on a RedHat 7 client. The xymon server will remain CentOS 6 for the forseeable future.

Paul.

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