[hobbit] Graphs are missing data, but it's there!

Phil Wild philwild at gmail.com
Thu Jul 24 18:41:55 CEST 2008


The rrd version should be okay, after all it is graphing data from other
hosts with no problem.

It would appear that you ncv and graph configurations are correct as you say
they are working for other hosts. This would indicate it is a problem with
this host's configuration, so where to look...

Just out of interest, can you take an rrd file this test from a host that
works, and copy it into the .../data/rrd/hostname directory of the host that
does not?

I would expect after doing this that you will have a graph for this host.
Can you confirm this works? After doing this and leaving it for 10 minutes,
do you see any new data in the graph?

Can you dump the data from this rrd file?

2008/7/25 Ward, Martin <Martin.Ward at colt.net>:

>  > Are you saying that you run the same tests on multiple hosts and only
> one host in not showing data?
> Yes.
>
> > Does this mean they all share the same NCV configuration in
> hobberserver.cfg and the same graph definition in hobbitgraph.cfg?
> Yes.
>
> > What if you remove the rrd file and let hobbit create a new one, does
> that help?
> I did this and as you'd expect initially the web page showed no graph
> although it did show data (stored from the previous run I presume).
>
> After an interval the file appeared again but running "rrdtool dump" on it
> STILL failed to produce any data.
>
> I'm starting to wonder about the versions of RRD, but they ought to be
> data-compatible; I'm using rrdtool v1.2.15.
>
> The histlogs show no errors, the hist/mc25,... data file contains valid
> data. I DO get a few RRD errors like this:
>
> rrd-status.log:2008-07-21 09:46:19 RRD error updating /opt/hobbit/data/rrd/
> mc25.lon.server.colt.net/tcp.smtp.rrd from 10.44.107.48: illegal attempt
> to update using time 1216633579 when last update time is 1216633579 (minimum
> one second step)
> which make it look like Hobbit is actually updating the RRD file... I just
> can't get any data out!
>
> |\/|
>
>
>  -----Original Message-----
> *From:* Phil Wild [mailto:philwild at gmail.com]
> *Sent:* 24 July 2008 16:31
> *To:* hobbit at hswn.dk
> *Subject:* Re: [hobbit] Graphs are missing data, but it's there!
>
> Are you saying that you run the same tests on multiple hosts and only one
> host in not showing data? Does this mean they all share the same NCV
> configuration in hobberserver.cfg and the same graph definition in
> hobbitgraph.cfg?
>
> If this is correct, then it really points to something not getting into the
> rrd file. As previously suggested, rrd dump is your best bet at finding the
> problem here. What if you remove the rrd file and let hobbit create a new
> one, does that help?
>
> Cheers
>
> Phil
>
> 2008/7/24 Hubbard, Greg L <greg.hubbard at eds.com>:
>
>>  You know the data exists because you used the rrd dump tool to display
>> it?
>>
>> Is the graph simply not shown at all, or is there a "hole" in the Web page
>> where it normally would go?  ("show page source" might have a clue).
>>
>> Some ideas/shots in the dark:
>>
>> a) check the logs
>>
>> b) meticulously compare a "working" system to the non-working system, and
>> make sure that they really are identical.
>>
>>
>> c) look at the trends page for this host to see if the graph is okay there...
>>
>> Etc.  I am sure you know the drill -- a big pain to look under every
>> rock, but it has to be done...
>>
>> GLH
>>
>>  ------------------------------
>>  *From:* Ward, Martin [mailto:Martin.Ward at colt.net]
>> *Sent:* Thursday, July 24, 2008 8:21 AM
>>
>> *To:* hobbit at hswn.dk
>> *Subject:* RE: [hobbit] Graphs are missing data, but it's there!
>>
>>   Thanks for the suggestion but that didn't work (I guess you meant rrd).
>>
>> Any other ideas?
>>
>> |\/|
>>
>>  -----Original Message-----
>> *From:* Roberts, James [mailto:James.Roberts at hants.gov.uk]
>> *Sent:* 24 July 2008 12:47
>> *To:* hobbit at hswn.dk
>> *Subject:* RE: [hobbit] Graphs are missing data, but it's there!
>>
>> you need to touch all the rdd.
>>
>>  ------------------------------
>> *From:* Ward, Martin [mailto:Martin.Ward at colt.net]
>> *Sent:* 24 July 2008 12:43
>> *To:* hobbit at hswn.dk
>> *Subject:* [hobbit] Graphs are missing data, but it's there!
>>
>>  All,
>>
>> I have a problem with one machine where its data is not being shown in the
>> graphs even though the data exists.
>>
>> The machine in question's Hobbit client sends five pieces of numeric data
>> (email queues) and these are displayed on the web page for this service:
>>
>> ====
>> *Thursday July 24 11:29:11 UTC 2008*
>>
>> ActiveStatus:  ***green*<http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif>
>> ActiveQueue: 106
>> ActiveTrend: tendency* rising* with* -60* mails.
>> BounceStatus:  ***green*<http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif>
>> BounceQueue: 58
>> BounceTrend: tendency* falling* with* 3* mails.
>> DeferStatus:  ***red* <http://hbt0.lon.oss.colt.net/hobbit/gifs/red.gif>
>> DeferQueue: 150464
>> DeferTrend: tendency* falling* with* 95* mails.
>> CorruptStatus:  ***green*<http://hbt0.lon.oss.colt.net/hobbit/gifs/green.gif>
>> CorruptQueue: 0
>> CorruptTrend: amount equal to last measure.
>> IncomingStatus:  ***red*<http://hbt0.lon.oss.colt.net/hobbit/gifs/red.gif>
>> IncomingQueue: 247049
>> IncomingTrend: amount equal to last measure.
>>
>>  Deferred Queue is too high but is decreasing already.
>>
>> ====
>> These numbers change over time and the values are accurate.
>>
>> However, the graph that is displayed below this data is blank. I have
>> historic data, the files exist, and what is more I have other machines that
>> are configured identically to this one where the data IS graphed correctly.
>>
>> Hobbit graphs are a bit of a black hole to me, can anyone suggest where I
>> might look?
>>
>> |\/|artin
>>
>>
>>
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>
>
> --
> Tel: 0400 466 952
> Fax: 0433 123 226
> email: philwild AT gmail.com
>
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-- 
Tel: 0400 466 952
Fax: 0433 123 226
email: philwild AT gmail.com
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