<div title="signature"><p>Sorry about the previous message, I mistyped TAB and then space bar ... Undo Email now activated on Gmail ... If someone is able make the first message disappear ...</p><p>So ... I was saying :</p>
<p>Hello there,</p><p><meta http-equiv="content-type" content="text/html; charset=utf-8">It's my first time using RRDTool, and after struggling for a while with the docs and some examples found here and there, I can't find a way to do what I need, which is the following :</p>
<p>I'm running a Ruby on Rails production server through Nginx and Passenger, and want to know when in the day users are actively using the webservice. So I looked around a bit and found that RRDTool was fitting perfectly to generate some graph.</p>
<p>(I know this may not be the best way, as I could analyze Nginx logs for instance, but the only long running log I have is the Rails one, so this is not the point)</p><p>I have a production.log file, containing the requests details with date/hour of the request. I easily parsed the lines to get the timestamp of the request, and managed to of generate graphs of the average requests per hour on one day, week, month or year. But I couldn't manage to get the average requests for one "typical day", summarizing the yearly average of requests in one single day.</p>
<p>That's why I went here, hoping someone could kindly explain to me what I was doing wrong and how to do what I need. And as I'm sure I've not understood much of the way RRDTool works, especially the definition of DSs and RRAs, explanations of the why using this or that counter type and numbers would be even more appreciated.</p>
<p>Many thanks,</p><p>Cheers,<br>Jérémy</p></div>