[Xymon] Graphing in Xymon

Fri Sep 20 02:01:20 CEST 2019

It's my understanding that the "service=XYZ" option is used to find a match
in graphs.cfg (ie [XYZ]). Usually this is the same string as the column
name, but sometimes not, and I have to admit that I don't fully understand
the relationships between RRD filename, graph name, column name, service
name, the variables TEST2RRD and GRAPHS and the per-host TRENDS settings.

On Fri, 20 Sep 2019 at 03:03, Root, Paul T <Paul.Root at centurylink.com>
wrote:

> Ah, that got it.  I had REQUEST_METHOD=get on the same line as
> SCRIPT_NAME, effectively making the command “showgraph REQUEST_METHOD=GET”
>
>
>
> Also, the QUERY_STRING does not want the ncv: in it.
>
>
>
> ConfigPulls yields:
>
> $ $SCRIPT_NAME
>
> Content-type: text/html
>
>
>
> <html><head><title>Invalid request</title></head>
>
> <body>Unknown graph requested</body></html>
>
>
>
> While cpu, and another custom graph we have (proc-mem) both work fine.
>
>
>
> I’m thinking the upper case maybe causing the issue. I’m going to try to
> rename the test to lowercase.
>
>
>
>
>
> *From:* Jeremy Laidman <jeremy at laidman.org>
> *Sent:* Wednesday, September 18, 2019 6:47 PM
> *To:* Root, Paul T <Paul.Root at CenturyLink.com>
> *Cc:* xymon at xymon.com
> *Subject:* Re: [Xymon] Graphing in Xymon
>
>
>
> Following your commands, the only suggestion is that the variables might
> not have been set correctly. Perhaps run "echo $QUERY_STRING; echo
> $REQUEST_METHOD; echo $SCRIPT_NAME" immediately before "$SCRIPT_NAME".
>
>
>
> In case my instructions were amiss, here's another example of debugging
> showgraph.sh to follow:
>
>
>
> https://lists.xymon.com/archive/2012-July/035214.html
> <https://imss91-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3a%2f%2flists.xymon.com%2farchive%2f2012%2dJuly%2f035214.html&umid=53F7D197-92DC-7705-AA3B-96B005793723&auth=19120be9529b25014b618505cb01789c5433dae7-0da69dac38e7cd9a0ec0cb613ccf621beba4f183>
>
>
>
> J
>
>
>
> On Wed, 18 Sep 2019 at 04:32, Root, Paul T <Paul.Root at centurylink.com>
> wrote:
>
> I must be doing something group here, neither worked:
>
>
>
> $ SCRIPT_NAME=showgraph.sh REQUEST_METHOD=GET
>
> root nsmdenvp117:/etc/xymon/analysis.d
>
> $
> QUERY_STRING='host=nsmdenvp185&service=ncv:ConfigPulls&graph_width=576&graph_height=120&disp=nsmdenvp185&nostale&color=blue&graph_start=1568489816&graph_end=1568662616&graph=hourly&action=view'
>
>
> $ PATH=$PATH:/usr/lib64/xymon/cgi-bin
>
> $ type showgraph.sh
>
> showgraph.sh is /usr/lib64/xymon/cgi-bin/showgraph.sh
>
> $ showgraph.sh
>
> Content-type: text/html
>
>
>
> <html><head><title>Invalid request</title></head>
>
> <body>Invalid request - no host or service</body></html>
>
> $ export QUERY_STRING
>
> $ export SCRIPTNAME
>
> $ $SCRIPTNAME
>
> $ export SCRIPT_NAME
>
> $ $SCRIPT_NAME
>
> Content-type: text/html
>
>
>
> <html><head><title>Invalid request</title></head>
>
> <body>Invalid request - no host or service</body></html>
>
> $
> QUERY_STRING='host=nsmdenvp185&service=cpu&graph_width=576&graph_height=120&disp=nsmdenvp185&nostale&color=blue&graph_start=1568489816&graph_end=1568662616&graph=hourly&action=view'
>
>
> $ $SCRIPT_NAME
>
> Content-type: text/html
>
>
>
> <html><head><title>Invalid request</title></head>
>
> <body>Invalid request - no host or service</body></html>
>
> $ file /usr/lib64/xymon/cgi-bin/showgraph.sh
>
> /usr/lib64/xymon/cgi-bin/showgraph.sh: ELF 64-bit LSB executable, x86-64,
> version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux
> 2.6.18, stripped
>
>
>
> *From:* Jeremy Laidman <jeremy at laidman.org>
> *Sent:* Monday, September 16, 2019 3:38 PM
> *To:* Root, Paul T <Paul.Root at CenturyLink.com>
> *Cc:* xymon at xymon.com
> *Subject:* Re: [Xymon] Graphing in Xymon
>
>
>
> On Tue, 17 Sep 2019 at 05:53, Root, Paul T <Paul.Root at centurylink.com>
> wrote:
>
> Looping back on this:
>
>
>
> Running the showgraph by hand
>
>
>
> $ *./showgraph.sh host=nsmdenvp185 service=ncv:ConfigPulls
> graph_width=576 graph_height=120 disp=nsmdenvp185 nostale color=blue
> graph_start=1568489816 graph_end=1568662616 graph=hourly action=view*
>
>
>
> This won't work. The showgraph.cgi binary expects to be run as a CGI and
> requires QUERY_STRING to be set (to
> host=nsmdenvp185&service=ncv:ConfigPulls&graph_width=...) and
> REQUEST_MATHOD to be set to "GET". It also expects SCRIPT_NAME to be set
> (and normally it would be showgraph.sh) but I think this only generates
> warnings.
>
>
>
> Try running like so:
>
>
>
> SCRIPT_NAME=showgraph.sh REQUEST_METHOD=GET
> QUERY_STRING='host=nsmdenvp185&service=ncv:ConfigPulls&graph_width=576&graph_height=120&disp=nsmdenvp185&nostale&color=blue&graph_start=1568489816&graph_end=1568662616&graph=hourly&action=view'
> ./showgraph.sh
>
>
>
> The output will be partly binary, so you might want to try:
>
>
>
> SCRIPT_NAME=showgraph.sh REQUEST_METHOD=GET
> QUERY_STRING='host=nsmdenvp185&service=ncv:ConfigPulls&graph_width=576&graph_height=120&disp=nsmdenvp185&nostale&color=blue&graph_start=1568489816&graph_end=1568662616&graph=hourly&action=view'
> ./showgraph.sh | sed '1,/^$/d' | file -
>
>
>
> and see if it shows that a PNG file format was generated.
>
>
>
> If this doesn't work, check for a service name such as "cpu" that is known
> to work, rather than your custom "ncv:ConfigPulls".
>
>
>
>
>
> Content-type: text/html
>
>
>
> <html><head><title>Invalid request</title></head>
>
> <body>Invalid request - no host or service</body></html>
>
>
>
> Yep, cos no QUERY_STRING.
>
>
>
>
>
> $ *ls /var/lib/xymon/rrd/nsmdenvp185/ConfigPulls**
>
> /var/lib/xymon/rrd/nsmdenvp185/ConfigPulls.rrd
>
> root nsmdenvp117:/usr/lib64/xymon/cgi-bin
>
> $ cat ~ptroot/crap2
>
> #!/bin/bash
>
>
>
> $* curl -k
> https://nsmdenvp117.corp.intranet/xymon-cgi/showgraph.sh\?host=nsmdenvp185\&service=ncv:ConfigPulls\&graph_width=576\&graph_height=120\&disp=nsmdenvp185\&nostale\&color=blue\&graph_start=1568489816\&graph_end=1568662616\&graph=hourly\&action=view
> <https://imss91-ctp.trendmicro.com:443/wis/clicktime/v1/query?url=https%3a%2f%2fnsmdenvp117.corp.intranet%2fxymon%2dcgi%2fshowgraph.sh%255C%3fhost%3dnsmdenvp185%255C%26service%3dncv%3aConfigPulls%255C%26graph%5fwidth%3d576%255C%26graph%5fheight%3d120%255C%26disp%3dnsmdenvp185%255C%26nostale%255C%26color%3dblue%255C%26graph%5fstart%3d1568489816%255C%26graph%5fend%3d1568662616%255C%26graph%3dhourly%255C%26action%3dview&umid=53F7D197-92DC-7705-AA3B-96B005793723&auth=19120be9529b25014b618505cb01789c5433dae7-99d13073304ea227297a4aef5b6bce69d989c333>*
>
> <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">
>
> <html><head>
>
> <title>500 Internal Server Error</title>
>
>
>
> This works for me (substituting my own Xymon servername, hostname and
> service.
>
>
>
> </head><body>
>
> <h1>Internal Server Error</h1>
>
>
>
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