[hobbit] Another newbie needs help w/ custom graphs

[Rich Smrcina]

Brian,

In addition to adding 'weblogic=ncv' to TEST2RRD, you also have to add 
'weblogic' (without =ncv) to GRAPHS.

Remember to bounce Hobbit after the change as it only processes the file 
at startup time.

Bouchard, Brian wrote:
> I’ve been working with Hobbit for all of a couple of weeks now, although 
> I have some limited exposure to Big Brother in a previous life…
> 
>  
> 
> In order to learn the tool better, I wrote a simple custom monitor that 
> watches Heap usage in an application server.  This seems to be 
> collecting data fine, but now I want to figure out how to graph this 
> information in an rrd graph.
> 
>  
> 
> Here’s where I stand.
> 
>  
> 
> - I have a column called “weblogic” in Hobbit.
> 
> - When you click on that column for a given host, you see a field called 
> “used_heap”
> 
> - I edited hobbitserver.cfg and added a piece at the end of the TEST2RRD 
> line:   weblogic=ncv
> 
> - I also added a line to the same file:    NCV_weblogic=”usedheap:Gauge”
> 
> - I I’m generating a file called weblogic.rrd in ../data/rrd/<HOSTNAME>
> 
>  
> 
> But, when I go to the weblogic column, at the bottom of the page there 
> is a space where the graph should be that says “hobbit graph 
> ncv:weblogic”  No graph.
> 
>  
> 
> I THINK everything is ok up to this point, but then comes the 
> hobbitgraph.cfg file, and I have to be honest, I really don’t understand 
> this file at all and haven’t come across a good explanation yet, so I’m 
> open to someone telling me to go read some website before I post, if 
> it’s glaringly obvious. I used some other files and the examples I found 
> online to come up with this…
> 
>  
> 
> [weblogic]
> 
>         TITLE Heap Usage
> 
>         YAXIS Bytes
> 
>         DEF:heap=weblogic.rdd:usedheap:AVERAGE
> 
>         LINE2:heap#00CCCC:Heap Used
> 
>         COMMENT:\n
> 
>         GPRINT:heap:LAST:Heap Used \: %5.1lf%s (cur)
> 
>         GPRINT:heap:MAX: \: %5.11f%s (max)
> 
>         GPRINT:heap:MIN: \: %5.11f%s (min)
> 
>         GPRINT:heap:AVERAGE: \: %5.11f%s (avg)\n
> 
>  
> 
>  
> 
> I could use some help getting this graph going, and even explaining the 
> entries in the hobbitgraph.cfg file if anyone has the patience to help 
> walk me through this.
> 
>  
> 
> - Brian
> 

-- 
Rich Smrcina
VM Assist, Inc.
Phone: 414-491-6001
Ans Service:  360-715-2467
rich.smrcina at vmassist.com
http://www.linkedin.com/in/richsmrcina

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