[xymon] Graphs gone crazy

[Vernon Everett]

Looks useful.
Researching it now.


On Thu, Jul 15, 2010 at 11:45 AM, Tim McCloskey <tm at freedom.com> wrote:
> Hi Vernon,
>
> I don't use csw but in the thread from https://www.opencsw.org/mantis/view.php?id=4380 it is mentioned that this if fixed
> and the new csw packages are at: http://mirror.opencsw.org/experimental.html#rrdtool.
>
> As for where you define rrdtool in hobbit, I think it is determined at build time, not sure.  I'm sure the group can provide better details on this aspect.
>
>
> $ strings hobbitgraph.cgi  | grep -i rrdtool
> /snip/rrdtool/lib:/snip
>
>
>
> Regards,
>
> Tim
>
> ________________________________________
> From: Vernon Everett [everett.vernon at gmail.com]
> Sent: Wednesday, July 14, 2010 8:21 PM
> To: xymon at xymon.com
> Subject: Re: [xymon] Graphs gone crazy
>
> Hi Tim
>
> I just did something similar.
> I downloaded rrdtool and all required libraries from sunfreeware.com
> and installed them into default location.
> All good.
> I then tried your command again, using the newly installed rrdtool,
> and it works.
> I get line graphs and correct area graphs.
>
> Now I need to convince Xymon to use the new version.
>
> I changed the path in hobbitserver.cfg and restarted. No good.
> I even linked the new rrdtool to the location of the old bad one. No change.
>
> Any idea where in the configs we define which rrdtool binary to use
> for graphing?
>
> Cheers
>      Vernon
>
>
>
> On Thu, Jul 15, 2010 at 11:05 AM, Tim McCloskey <tm at freedom.com> wrote:
>> Hi Vernon,
>>
>> I seem to recall a 'all-in-one' rrdtool/lib/deps set of install instructions from Tobias but it's been a long, long time.  Anyway, my point is that you might be able to isolate even further by building the latest rrdtool, with all libs/deps, from source, and placing the whole thing in a unique dir, then testing rrdtool from that install.  Or send the .rrd to some other system with a clean rrdtool install and test...
>>
>> Or, you could take a look here to see if it's relevant to your system.  It's a bug from about three weeks ago, I think.
>> http://oss.oetiker.ch/rrdtool-trac/ticket/271
>>
>> Regards,
>>
>> Tim
>>
>>
>>
>>
>> ________________________________________
>> From: Vernon Everett [everett.vernon at gmail.com]
>> Sent: Wednesday, July 14, 2010 7:43 PM
>> To: xymon at xymon.com
>> Subject: Re: [xymon] Graphs gone crazy
>>
>> Hi Tim
>>
>> Thanks for those pointers. I have moved the problem along, in so much
>> as I realise now what's borked.
>> Still not sure how to fix it, but I have a theory about why it's broken.
>>
>> Appears rrd is borked.
>> To replicate what's happening, I modified your command, and tried to
>> recreate a cpu graph (using live data)
>>  rrdtool graph splat.png \
>>       "DEF:avg=./la.rrd:la:AVERAGE" \
>>       "CDEF:la=avg,100,/" \
>>       "AREA:la#00CC00:la" \
>>       "GPRINT:la:LAST: \: %5.0lf xxx" \
>>       "GPRINT:la:MAX: \: %5.0lf max" \
>>       "GPRINT:la:MIN: \: %5.0lf min" \
>>       "GPRINT:la:AVERAGE: \: %5.0lf avg\n"
>> And got the attached output.
>> This is pretty much what I get in the trends column.
>>
>> So I tried again with one of the graphs that don't show up at all. The
>> hobbitd incoming messages graph.
>> And got this error message.
>> ERROR: LINE width '2:in#00CCCC:Incoming messages' is out of range in
>> line 'LINE2:in#00CCCC:Incoming messages'
>>
>> Odd! Tried a bit of reformatting - still no graph.
>> So I took the one above, which is known to at least produce output,
>> and replaced AREA with LINE2.
>> ERROR: LINE width '2:la#00CC00:la' is out of range in line 'LINE2:la#00CC00:la'
>> Odd that this message isn't showing up in any of the logs though.
>>
>> So I went back to my graphs, and the penny dropped.
>> The graphs that appear with the wash of colour are all AREA graphs, or
>> contain an AREA component.
>> The missing ones are all LINE or LINE2 graphs.
>>
>> Sound familiar to anybody?
>>
>> My theory is that somebody upgraded the libraries. (We are using the
>> CSW libraries) and the upgrade may have caused an issue.
>>
>> The investigation continues.
>> Any ideas clues or pointers from the list appreciated.
>>
>> Regards
>>     Vernon
>>
>>
>> On Thu, Jul 15, 2010 at 12:48 AM, Tim McCloskey <tm at freedom.com> wrote:
>>> Hi,
>>>
>>> You say ALL of your graphs are crazy, you mean for ALL hosts and ALL tests?  I'm sure you've probably already investigated, but what has recently changed with the O/S patches, env, or changes to hobbit?
>>>
>>> You could try to create a manual graph from the rrd file to isolate a bit, short example below.
>>>
>>> rdtool graph splat.png \
>>>         -W tm at .com \
>>>        "DEF:NA1CPU=./NA1CPU.rrd:NA1CPU:AVERAGE" \
>>>        "AREA:NA1CPU#00CC00:NA1CPU" \
>>>        "GPRINT:NA1CPU:LAST: \: %5.0lf cur" \
>>>        "GPRINT:NA1CPU:MAX: \: %5.0lf max" \
>>>        "GPRINT:NA1CPU:MIN: \: %5.0lf min" \
>>>        "GPRINT:NA1CPU:AVERAGE: \: %5.0lf avg\n"
>>>
>>>
>>>
>>> Regards,
>>>
>>> Tim
>>>
>>>
>>>
>>> ________________________________________
>>> From: Vernon Everett [everett.vernon at gmail.com]
>>> Sent: Tuesday, July 13, 2010 8:50 PM
>>> To: xymon at xymon.com
>>> Subject: [xymon] Graphs gone crazy
>>>
>>> Hi all
>>>
>>> Hoping somebody has seen this one before.
>>> All of a sudden, all my graphs have gone completely crazy.
>>>
>>> The rrd files look good, and contain sane looking data.
>>> The curr/min/max summary looks fine, but the graphs themselves are
>>> either showing a wash of colour, corresponding to the first defined
>>> line, or not showing at all. Just get the link and the magnifying
>>> glass. (See attached.)
>>>
>>> There appear to be no errors in the web server logs, and none in any
>>> of the xymon logs either. :-(
>>>
>>> Any assistance appreciated.
>>>
>>> Regards
>>>     Vernon
>>>
>>
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