On May 10, 2012, at 8:44 AM, Aaron Nichols wrote: > If you want to see all clusters in a particular grid you can query gmetad on > port 8651. If you have multiple grids (multiple hosts running gmetad for > different groups of clusters) you will need to query each of those > separately.
You will want to keep an eye on how often you query though.. the XML tree can get fairly large. I once made the mistake of advertising the existence of the XML port to users and they went nuts on it, brought the server to its knees. With a default ganglia installation, it's something in the neighborhood of 11 kilobytes per machine. Perhaps more interesting is the interactive port, which allows a script to send a GET style query to gmetad and fetch only the data the user is interested in. Downside being it's not documented terribly well (or it wasn't a couple years ago).. I had to figure out how to use it by digging through the web frontend php scripts. > > Aaron > > On Thu, May 10, 2012 at 7:36 AM, Joe Borġ <m...@jdborg.com> wrote: > Thanks Austin, > > That's working but only showing me one cluster, is it a different port for > the other clusters? > > > > Regards, > Joseph David Borġ > http://www.jdborg.com > > > On 10 May 2012 13:56, talk2austin <talk2aus...@gmail.com> wrote: > Greeting Joseph !! > > You can telnet to gmetad service and it will through out the complete XML > output of all the nodes.... > > example # telnet 127.0.0.1 8649 > > Regards, > Austin > > On Thu, May 10, 2012 at 2:26 PM, Joe Borġ <m...@jdborg.com> wrote: > As far as I'm aware, ganglia outputs its data as XML that the web page then > picks up and processes. What I'm trying to do is write some python that > looks at every node in a cluster group and alerts if any of the metrics are > over a threshold (easy enough) if I can get hold of ganglia's output. > > Can anyone point me in this direction please? > > > Regards, > Joseph David Borġ > http://www.jdborg.com > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Ganglia-general mailing list > Ganglia-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ > _______________________________________________ > Ganglia-general mailing list > Ganglia-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > ------------------------------------------------------------------------------ > Live Security Virtual Conference > Exclusive live event will cover all the ways today's security and > threat landscape has changed and how IT managers can respond. Discussions > will include endpoint security, mobile security and the latest in malware > threats. > http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/_______________________________________________ > Ganglia-general mailing list > Ganglia-general@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/ganglia-general ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Ganglia-general mailing list Ganglia-general@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ganglia-general
