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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