RE: [hobbit] Iostat and/or Xymon graphing bug.

["Everett, Vernon" <Vernon.Everett (at) woodside.com.au>]

Indeed, I agree with you.
I was giving it some thought this morning and came up with a theory.

I have 6 rrd files, with 2 data fields per rrd file.
When deciding how many graphs are needed, does Xymon look at the number of files, or the number of fields to graph?
I suspect the number of fields.
However, when the graphs are drawn, it plots the 3 rrd files per graph. (I believe 4 is the default number datasets per graph)
At this point, it counts the number of rrd files. And 3 translates to 6 data fields on the first graph.
However, Xymon has made provision for 2 graphs, because there are more than 4 datasets.
This would explain the "empty" graph.

Unfortunately, "my C skill" is are a contradiction in terms.
So, like with all modern theories, I leave this one open to the scientific community to either refute or confirm.
 
Cheers and a happy new year to you all
    Vernon


-----Original Message-----
From: Stef Coene [mailto:stef.coene (at) docum.org] 
Sent: Wednesday, 31 December 2008 7:13 AM
To: hobbit (at) hswn.dk
Subject: Re: [hobbit] Iostat and/or Xymon graphing bug.

On Tuesday 30 December 2008, Everett, Vernon wrote:
> Compliments of the season to you all
>
> And a special thanks to Stef Coene for the iostat script.
> Works great on my test server.
>
> I have just one question.
> How do I get rid of the extra blank iostat graph link URL?
> See attached (hopefully the image will not be stripped) In case it is 
> stripped, I get the iostat graph, and then another link, with no 
> graph.
I have seen this before, but I never bothered to dive in the source.  But I think it's a bug when the rrd files are counted and the needed links are generated.


Stef

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