On Wed, 23 Jan 2008, Matthias Blankenhaus wrote: > > > On Wed, 23 Jan 2008, Vikrama H T wrote: > > > > > Hi , > > > > I have gone through lots of mail chains in Ganglia-general forum regarding > > the performance of Ganglia with Scalability up to 1000+ nodes. > > > > I am also planning to test Ganglia scalability up to 1000+ nodes . > > > > I just wanted to know is any body have already tested this and documented > > performance metrics ? > > I ran Ganglia 3.0.x on 2000+ nodes without seeing any issue. I used a > hierarchical approach one grid spanning several cluster. Each cluster > contained roughly the same amount of nodes. > > > > > If so please give me those performance metrics. > > The gmond was running under 1% CPU resource utilization using roughly 5MB > res. memory. Gmetad was using around 8% CPU every 1 secs and roughly
Typo: I meant to say every 15 secs. > drawing 13MB of res. memory. > I did not attempt any performance tuning on Ganglia. I am very sure > that these numbers can be reduced even more. > > > > > Also what are issues you faced during this 1000+ node testing ? > > I did not experience any issue at all. However, I did perform these > optimizations, just in case: I did use the unicast model to reduce the > network traffic. I also moved my RRDs to shared memory to reduce the > load on the head node. > > > > > What was the Polling interval configured at Gmetad for polling each Gmond? > > Default: 15 sec. > > > > > What would happen if we have configured 1 sec Polling interval for polling > > each Gmond for 1000+ Nodes.? > > > > What could be the Latency of Metric collection from Gmetad with 1 sec > > Polling interval for polling each Gmond for 1000+ Nodes.? > > > > Please help if any of you have answers for these queries. > > > > Thanks and regards, > > Vikrama > > > > > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by: Microsoft > > Defy all challenges. Microsoft(R) Visual Studio 2008. > > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > > _______________________________________________ > > Ganglia-general mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2008. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
