Hi Bernard, Thanks for the pointer to the demo version of the new interface. May I make a small suggestion?
I'm looking at the bx_workservers with network_report, descending. The node graphs exhibit the same problem as previous versions, namely that they are ordered by instantaneous values (I'm not sure if in or out), and that the scales vary. Glancing at them as I write (10:15 GMT) the scales are: 400k, 2.0k, 4.0k, 200M, 5,0k and 400k. It looks as though the second display is the heaviest traffic, when in fact it is only passing about 1.0k in each direction. Clicking on either "Show Hosts Scaled: Auto" or "... Same" has no discernable effect. First impressions are favourable, I do like the mobile option, it's not just mobiles that benefit from having on occasion less data presented. The views option and the associated automatic rotation also look very promising. Finally a tip. On my site I've added extra time scales at user request. It's simple enough to do, just add extra lines to the definition of $time_ranges at the end of /srv/www/html/ganglia/conf.php (or wherever you keep the PHP). I added: '10min'=>600, ... 'fortnight'=>1209600, ... 'quarter'=>7862400, 'half'=>15724800, For the avoidance of doubt: a fortnight is a common term in the UK for two weeks, it comes from "fourteen-nights". I understand that the term is not used as much in the USA. Martin Rushton HPC System Manager, Weapons Technologies Tel: 01959 514777, Mobile: 07939 219057 email: [email protected] www.QinetiQ.com QinetiQ - Delivering customer-focused solutions Please consider the environment before printing this email. -----Original Message----- From: Bernard Li [mailto:[email protected]] Sent: 02 March 2011 09:57 To: William Saxton Cc: [email protected] Subject: Re: [Ganglia-general] Noobie questions re: Ganglia Hi Bill: On Tue, Mar 1, 2011 at 9:26 AM, William Saxton <[email protected]> wrote: > Hi all (potential) new ganglia user here, with a couple quick > questions that I couldn't find the answers to via google. Welcome! > 1) Where can I find how ganglia gathers information from a system? > I'm specifically looking to compare how, for example, Solaris gathers > its information (probably through kstat) and Linux gathers its > (probably via > /proc) but I'm looking, specifically, for the code that shows this. > Is it available? You can find the code here: http://sourceforge.net/apps/trac/ganglia/browser/trunk/monitor-core/libmetrics If you're looking for specific issues with an existing version, you can look them up in their respective branches/tags. > 2) Does anyone have any experience with using ganglia, just as a > backend for storage of RRD data, but then using their own custom > front-end? We are currently using our own home-grown RRD > back-end/front-end solution and, although ganglia looks like a more > robust method of data collection/storage...we're thinking we might > just want to port that for a back-end solution and continue using our own > front-end. Most users just use the standard frontend. Users of larger sites tend to do more customizations to make Ganglia work more to their needs. However we are also working on the next generation of the frontend which will be much more user-friendly and customizable: http://vuksan.com/blog/2010/12/10/rethinking-ganglia-web-ui/ You can see a demo of it in action: http://fjrkr5ab.joyent.us/ganglia-2.0/ But we are also perfectly fine if you want to keep using your own frontend, you can take a look at the PHP code to see how the integration would work. Actually, I think Tobi is working on "one frontend to rule them all", so that you can integrate a bunch of different monitoring solutions but using one unified dashboard. The holy grail of monitoring systems, if you will :) Cheers, Bernard ------------------------------------------------------------------------------ Free Software Download: Index, Search & Analyze Logs and other IT data in Real-Time with Splunk. 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