I've been hacking on ganglia, to add the ability to access highly granular historical data. This consists of a new php page, which shows a graph for 1 attribute on 1 host at the time of your choice, a script which runs as a cronjob in order to copy data from /var/lib/ganglia/rrds/**/*.rrd to /var/lib/ganglia/hist/**/*.rrd, (I found that when saving a month of data at 4 samples per minute, my system was spending much time waiting for IO), and some hacks to graph.php. Has anybody else played with the ability to look at arbitrary hours rather than just the most recent hour?
Also, I am curious as to how the performance of rrdtool would be affected if we were to store related metrics in a single rrd file: e.g., we could group cpu_(user,system,idle,wio,nice) in a single file, which I think would reduce the resource usage of gmetad significantly. Any thoughts on either of these things? ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
