[hobbit] strange graph behavior - random machines & graphs

[Gary Baluha]

In my case, it seems the "garbage" that is going into the graphs is caused
by a lack of data, rather than actual bad data.  I'm specifically wondering
if there's some time interval mix-up that is causing the issue.  If anyone
would like to see a current example of one of the graphs with bad data, I'll
gladly provide a screenshot.

On Mon, Apr 7, 2008 at 2:27 PM, Hubbard, Greg L <greg.hubbard at eds.com>
wrote:

>  If you look through the source, the RRD support modules are easy to
> spot.  If you are using custom graphs, then you need to review the ncv
> method, or the "roll your own" method.
>
> But, since "garbage in -> garbage out" you might be on the right path.
>
> GLH
>
>  ------------------------------
> *From:* Gary Baluha [mailto:gumby3203 at gmail.com]
> *Sent:* Monday, April 07, 2008 1:15 PM
> *To:* hobbit at hswn.dk
> *Subject:* Re: [hobbit] strange graph behavior - random machines & graphs
>
> I thought I'd revisit this issue again.  A new thought has occurred to
> me...  Where does Hobbit generate the RRD files?  I wonder what parameters
> Hobbit is using to pass to rrdtool, and if something there might be acting
> funny with some of the data I'm providing to that Hobbit module.
>
> On Wed, Dec 19, 2007 at 10:59 AM, Gary Baluha <gumby3203 at gmail.com> wrote:
>
> > It's interesting that it seems the CPU Load and Users and Processes
> > graphs are the graphs that are most likely to have this strange corruption.
> > I have also seen it on a few Disk graphs, but not nearly as many as the
> > other two graphs.  Interestingly, the CPU Utilization, Network I/O, and TCP
> > Connection Times graphs have _never_ had this corruption.  I'd also like to
> > say the Memory Utilization graph hasn't had this issue either, though I
> > can't recall with complete certainty that that is the case.
> >
> > I wonder what the main difference between the 3 graphs that do have the
> > issue is, and the 3 (possibly 4) graphs that have never exhibited this
> > issue.  There must be some physical difference, as I can't imagine it is all
> > due purely to luck...
> >
>
>
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