[mrtg] Re: Problem with graphs stays empty
Berry
mrtg at infotrade.se
Thu Aug 28 21:06:38 MEST 2003
Hello everybody,
Two weeks ago I posted a mail regarding graphs that stays empty when
importing values. At that time when I checked the log-file for the
graph, all values was on the first line in the log file, the rest was
zeroes. (The mail I posted is below).
Now I have found what the problem was. It seems that MRTG can not
handle the big values that I imported. For example, monitoring one of
my harddrives with freespace.exe gives me the following output
13030923264
120031478272
n/a
d:
First line is free space and second is total space, ie about 13 GB
free of about 120 GB.
I had this running for two weeks (producing empty graphs) without
changing anything. When I almost ran out of disk space the other day
the graph suddenly started to appear (when around 2 GB free space).
Later, when I made more space available, the problem returned (the
graph does not update although the correct value - 13030923264 - is
at the first line in the .log-file. (The value stays at the first
line all the time).
>From what I understand this must be a problem in MRTG and not the
.cfg-file. I have tried several different option in the .cfg-file
including setting the MaxByte option a lot higher.
YLegend[p424disk-d3]: Bytes Disk Usage
WithPeak[p424disk-d3]: ymw
Options[p424disk-d3]: gauge, noborder, nobanner
Target[p424disk-d3]: `c:\mrtg\bin\freespace -m d:`
MaxBytes[p424disk-d3]: 120031478272
Unscaled[P424disk-d3]: ymwd
Weekformat[P424disk-d3]: V
Title[p424disk-d3]: Disk Usage D, Total and Free bytes
ShortLegend[p424disk-d3]: bytes
Legend1[p424disk-d3]: Free
Legend2[p424disk-d3]: Total
Legend3[p424disk-d3]: Maximal 5 Minute
Legend4[p424disk-d3]: Maximal 5 Minute
LegendI[p424disk-d3]: Free
LegendO[p424disk-d3]: Total
PageTop[p424disk-d3]: <H1>Disk Usage D, Total and Free bytes</H1>
The graphs are at http://berndt.hybner.com/stat/p424disk-d3.html
The log file is at http://berndt.hybner.com/stat/p424disk-d3.log
I am running MRTG 2.9.25
Blue skies
berry
From: "Berry" <mrtg at infotrade.se>
To: mrtg at list.ee.ethz.ch
Date sent: Thu, 14 Aug 2003 18:04:54 +0200
Subject: [mrtg] Re: Problems importing from comma separated file?
Priority: normal
> Hi again and thanks for the help Daniel,
> Thanks to Tim at Netlatency.com they added now support for MRTG and
> freespace can now produce MRTG friendly output ie
> 7057422848
> 129931478272
> n/a
> c:
>
> It can also produce the following
> 100
> 33.05
> n/a
> c:
>
> ie in percentage format which is great!
>
> If the drive is not available (which is the case for some of my
> logical drives which not always are mounted) the output is ´0´
> instead of the bytecount.
>
> However, I still have some problems to import this info to MRTG:
>
> For percentage format everything works fine.
> I use the following .cfg-file:
>
> YLegend[p424disk-c2]: % Disk Usage
> WithPeak[p424disk-c2]: ymw
> Options[p424disk-c2]: gauge, noborder, nobanner, nopercent
> Target[p424disk-c2]: `c:\mrtg\bin\freespace -p c:`
> MaxBytes[p424disk-c2]: 100
> Unscaled[P424disk-c2]: ymwd
> Weekformat[P424disk-c2]: V
> Title[p424disk-c2]: Disk Usage C, Total and Free %
> ShortLegend[p424disk-c2]: %
> Legend1[p424disk-c2]: Total
> Legend2[p424disk-c2]: Free
> Legend3[p424disk-c2]: Maximal 5 Minute
> Legend4[p424disk-c2]: Maximal 5 Minute
> LegendI[p424disk-c2]: Total
> LegendO[p424disk-c2]: Free
> PageTop[p424disk-c2]: <H1>Disk Usage C, Total and Free %</H1>
>
> ...which produce the following output:
> http://berndt.hybner.com/stat/p424disk-c2.html
>
> Thats all fine neh? :-)
>
> The problem is with bytes available.... I get nothing, my graphs stays
> empty! When I check the .log-file it imports the values produced by
> Freespace but only on the first line, the new value when MRTG runs the
> next time replaces the old one on the first line of the log file but
> all other lines stays ´0´ forever.. See
> http://berndt.hybner.com/stat/p424disk-c3.html
> http://berndt.hybner.com/stat/p424disk-c3.log
>
> I use the following .cfg-file:
> YLegend[p424disk-c3]: Bytes Disk Usage
> WithPeak[p424disk-c3]: ymw
> Options[p424disk-c3]: gauge, noborder, nobanner
> Target[p424disk-c3]: `c:\mrtg\bin\freespace -m c:`
> MaxBytes[p424disk-c3]: 120031478272
> Unscaled[P424disk-c3]: ymwd
> Weekformat[P424disk-c3]: V
> Title[p424disk-c3]: Disk Usage C, Total and Free bytes
> ShortLegend[p424disk-c3]: bytes
> Legend1[p424disk-c3]: Total
> Legend2[p424disk-c3]: Free
> Legend3[p424disk-c3]: Maximal 5 Minute
> Legend4[p424disk-c3]: Maximal 5 Minute
> LegendI[p424disk-c3]: Total
> LegendO[p424disk-c3]: Free
> PageTop[p424disk-c3]: <H1>Disk Usage C, Total and Free bytes</H1>
>
> I had the same problem with several other info collected with W2K
> Performence monitor (thats the reason I went with Freespace) but I
> figured that was a M$ problem but now I don't think so anymore....
>
> What is really weird is that for one of my four logical drives It
> works "half". Checkout http://berndt.hybner.com/stat/p424disk-f3.html
>
> Anybody have an idea where to start looking for the problem...?
>
> Blue skies
> Berry
>
>
>
> Subject: [mrtg] Re: How to make cfg file from comma separated
> file? From: Daniel J McDonald
> <dan.mcdonald at austinenergy.com> To: Berry
> <mrtg at infotrade.se> Copies to: mrtg <mrtg at list.ee.ethz.ch>
> Organization: Austin Energy Date sent: 12 Aug 2003 07:48:00
> -0500
>
> > On Mon, 2003-08-11 at 17:54, Berry wrote:
> > > Hello,
> > > This is probably a newbie question but as I have not found an
> > > answer in the documentation or mailinglist archive (please feel
> > > free to correct me if I am mistaken) I am taking the liberty to
> > > post.
> >
> > That's fine. The salient portion of the manual is
> > http://people.ee.ethz.ch/~oetiker/webtools/mrtg/reference.html
> > under the TARGET syntax, under the rubrick "External Monitoring
> > Scripts".
> >
> > >
> > > I would like to use the FreeSpace utility from Netlatency (
> > > http://www.netlatency.com/utilities.html ) to monitor disk usage
> > > on different drives. This command-line tool produce an output in
> > > the following format:
> > >
> > > 8/11/2003,11:10:55 PM,c:,120031478272,7057422848,5.88%
> > >
> > > i.e. date,time,drive letter,total bytes,available bytes,available
> > > percent
> > >
> > > Assuming I schedule Freespace to provide this data to MRTG, how
> > > can I have MRTG build graphs from this information/How should the
> > > .cfg look like?
> > you would need to break that into 4 lines, e.g.
> >
> > 7057422848
> > 129931478272
> > 8/11/2003,11:10:55 PM
> > C:
> >
> >
> > Let's say you have a script called "splitit.pl" that generates those
> > four lines. You would then make your target say something like:
> >
> > target[drive_c]: `splitit.pl`
> >
> > Note the use of backticks. Note also that you will want to use
> > absolute paths for the script.
> >
> > Anyway, that should get you started.
> > --
> > Daniel J McDonald, CCIE 2495, CNX
> > Austin Energy
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