Excellent! So Mr. Massie and/or the ganglia dev team...any thoughts about getting something like this (from/to) into the main build of ganglia ?
thanks! john ----- Original Message ---- From: "[EMAIL PROTECTED]" <[EMAIL PROTECTED]> To: [EMAIL PROTECTED]; [EMAIL PROTECTED]; [email protected] Sent: Tuesday, November 7, 2006 8:00:38 AM Subject: RE: [Ganglia-general] Any plans on zooming or graphing granularitychanges to ganglia ? John, Yes, I hacked the php for "from/to" too. See picture, if it gets through that is. We find it pretty useful - sometimes for some after-the-fact analysis, but more usually for the simplest of reasons - we want to be able to email a ganglia URL that refers to a fixed point in time and is of a fixed duration. Also some of our users have crafted up nightly reports of their clusters by simply creating the right HTML, which can be located anywhere. Like this: <h2>LDN FIP Bermudan</h2> <img SRC="http://ganglia/graph.php?g=cpu_report&z=large&c=LDN FIP CRE Bermudan PDN&m=&r=6pm%20yesterday&ends=6am%20Today"> <img SRC="http://ganglia/graph.php?g=network_report&z=large&c=LDN FIP CRE Bermudan PDN&m=&r=6pm%20yesterday&ends=6am%20Today"> <h3>QA Level </h3> <img SRC="http://ganglia/graph.php?g=cpu_report&z=large&c=LDN FIP QA Bermudan PDN&m=&r=6pm%20yesterday&ends=6am%20Today"> <img SRC="http://ganglia/graph.php?g=network_report&z=large&c=LDN FIP QA Bermudan PDN&m=&r=6pm%20yesterday&ends=6am%20Today"> The advantages of GET over PUT eh... Adding more controlling parameters to graph.php was a bit dicky because the the PHP passes around context/state explicitly from URL to URL. Anyway I did it. I also eventually realised that to enable more flexible date parsing all I needed to do was pass "from" and "to" fields directly to rrdtool. Rrdtool can parse many date formats as documented here: http://oss.oetiker.ch/rrdtool/doc/rrdfetch.en.html (scroll down to the date stuff). So I would prefer having "from"/"to" in the standard build. In part this is simply what I use my ganglia for. If you purely use ganglia for looking at the here and now, then what it now does is fine. If you need overnight reports, or you do after the fact analysis, then from/to is useful. If you are thinking about capacity planning, then (after I stop laughing), you may want another modification of mine, which is to have a MAX consolidation function as well as AVERAGE, and graph them both. It means you never lose sight of your spikes. Richard Grevis Infrastructure Architecture Barclays Capital, Canary Wharf, London, E14 4BB *DDI : +44 (0) 20 7773 4915 * richard.grevis ------------------------------------------------------------------------ For more information about Barclays Capital, please visit our web site at http://www.barcap.com. Internet communications are not secure and therefore the Barclays Group does not accept legal responsibility for the contents of this message. Although the Barclays Group operates anti-virus programmes, it does not accept responsibility for any damage whatsoever that is caused by viruses being passed. Any views or opinions presented are solely those of the author and do not necessarily represent those of the Barclays Group. Replies to this email may be monitored by the Barclays Group for operational or business reasons. ------------------------------------------------------------------------ ____________________________________________________________________________________ Sponsored Link Free Uniden 5.8GHz Phone System with Packet8 Internet Phone Service http://www.getpacket8.net/yahoo2
