The tmpfs choice for us was because iostat showed 100% utilization, and strace confirmed the steady stream of mkdir's going constantly.
-j ----- Original Message ---- > From: Bernard Li <[EMAIL PROTECTED]> > To: ganglia-developers <ganglia-developers@lists.sourceforge.net> > Sent: Friday, June 6, 2008 5:17:06 PM > Subject: [Ganglia-developers] Testing RRDtool 1.3rc7 with Ganglia on CentOS > 4.x > > Hi guys: > > I was able to build RRDtool 1.3rc7 on CentOS 4.x and use it with Ganglia > 3.0.7. > > I noticed there weren't much difference in system resource > utilization: iostat shows ~2MB/s write, top shows load is roughly 4 > (this is roughly the same as system running rrdtool 1.2.23). > > The main difference I notice is that the frontend's graphs actually > looked fine. With version 1.2.23, I have a lot of gaps in the Load > summary graphs (the red, green, blue lines which represents CPUs, > Nodes and Running Processes respectively), with 1.3, the graphs don't > have gaps (or at least very rarely have gaps). I noticed that the > time it takes to generate the graphs is slightly faster. > > If you are interested in testing this for yourself, I have put the > necessary RPMs online here: > > http://therealms.org/oss/ganglia/rrdtool/ > > First, you need to upgrade glib2*, then install pango and ultimately > rrdtool (I make no guarantees that installing these RPMs won't break > your system, they do install correctly though ;-) ) > > If you are able to test it, please do share your thoughts. I'll > continue to run more tests. Also, please let me know if you need the > SRPMs for any of the packages. > > So I guess the summary is that we still cannot avoid tmpfs, but at > least your Ganglia installation would generate graphs with no issue -- > actually curious what was the sign which drove you guys to setup tmpfs > -- was it the higher than expected system resource utilization or > simply because the graphs didn't look right? > > Cheers, > > Bernard > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Ganglia-developers mailing list > Ganglia-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ganglia-developers ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Ganglia-developers mailing list Ganglia-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-developers
