WOW! Thanks! That's more than I hoped for. Working examples are my  
best learning tool.

 From what I can see, I don't think graph.php is ever calling my  
srss_report.php. I can tell that metric.php is being used every time.  
Frustrating. How can I log stuff in graph.php so I can see what is  
happening?

Art

Sent from my iPhone

On Jun 15, 2010, at 8:47 PM, Vladimir Vuksan <vli...@veus.hr> wrote:

> It's quite hairy :-). I basically had to turn on E_ERR to figure out  
> some of these errors. I have an apache stacked graph report  
> (modified from Ben Hartshorne) here
>
> http://vuksan.com/linux/ganglia/index.html#Apache_Traffic_Stats
>
> I have gotten to a point where I actually have a template that  
> generates these reports. I have also "hacked" things up to give me  
> aggregate stacked and line graphs. I blogged recently about  
> aggregate line graphs
>
> http://vuksan.com/blog/2010/06/05/beauty-of-aggregate-line-graphs/
>
> I have been meaning to post bunch of examples but haven't gotten  
> around to it yet. I just uploaded one that aggregates load on all  
> web servers on one graph. You can find it here
>
> http://github.com/vvuksan/ganglia-misc/blob/master/graph.d/all_web_load_report.php
>
> Hope this helps,
> Vladimir
>
>
> On Tue, 15 Jun 2010, Art Peck wrote:
>
>> Try as I might, and I HAVE tried, I can not seem to get the modular  
>> graphs to work.
>> I followed the process here: 
>> https://sourceforge.net/apps/trac/ganglia/wiki/ganglia_modular_graph_documentation
>>  
>>  to no avail. This
>> looked very precise and I thought I had found the answer, but  
>> apparently there is still some subtle thing I'm missing.
>> I walked through the graph.php code to see if there were any hints.  
>> There seems to be some discrepancies with the web page, but
>> that's may just be me misreading it. Any way, my modular graph is  
>> still not working.
>> I'm very sure this all works because the IBM guys have some amazing  
>> things on their ganglia web site.
>> I guess I have at least two questions:
>> (1) Where does the error_log() function log the messages? That  
>> would be very helpful. At least I could see how my report is (or
>> isn't in my case) being called.
>> (2) Exactly where in the host view should by modular graph be  
>> showing? How does graph.php, etc know which group it goes in? I'm
>> guessing from the GROUPS key that I set in my descriptor that I  
>> passed to rrdtool?
>> (3) My report filename is srss_report.php; and the function name  
>> inside that file is graph_srss_report (). Although the web page is
>> not totally clear on that, I dug it out of the graph.php code ....  
>> always go to the src I say! Is this set up correctly??
>> Geez, I know I'm a newbie at ganglia, but I've been doing stuff  
>> like this for a LONG time and I've never been this baffled. I sure
>> would appreciate someone enlightening me.

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