[Xymon] rrd files not getting created. - SUMMARY

Wed Dec 7 18:39:42 CET 2016

I recently followed this work-in-progress to set up a Xymon server on
Centos 7 for a pro bono client. 

https://centos.jordy.eu/centos-test/ [3] 

It's about 98% complete/accurate. This installation is compliant with
the general principles of package management in Centos/Red Hat. 

On 2016-12-07 12:08, navraj shrestha wrote: 

> looks like rrdtool didn't install correctly or may be I am missing some prerequisites packages. 
> Do you have any guide to install xymon? 
> Or do you know what packages needs to be installed? 
> 
> thanks
> 
>  
> 
> On Wed, Dec 7, 2016 at 10:57 AM, Root, Paul T <Paul.Root at centurylink.com> wrote:
> 
>> I'd look to find the showgraph.sh script and work on figuring out why your installation failed. 
>> 
>> FROM: navraj shrestha [mailto:shresthanav17 at gmail.com] 
>> SENT: Wednesday, December 07, 2016 10:54 AM 
>> 
>> TO: Root, Paul T; xymon at xymon.com
>> SUBJECT: Re: [Xymon] rrd files not getting created. - SUMMARY 
>> 
>> yes, they are installed 
>> 
>> so what can be done now 
>> 
>> On Wed, Dec 7, 2016 at 10:43 AM, Root, Paul T <Paul.Root at centurylink.com> wrote: 
>> 
>> 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> 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] 
>> 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> 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
>> 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 [1]"> 
>> 
>> <!-- 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
>> 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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>> 
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> 
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Links:
------
[1] http://oss.oetiker.ch/rrdtool/rrdtool.dtd
[2] http://lists.xymon.com/mailman/listinfo/xymon
[3] https://centos.jordy.eu/centos-test/
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