Douglas, The sFlow standard includes a mechanism for periodically exporting counters. It is these periodic counter exports that Ganglia is processing - there is no equivalent mechanism in NetFlow. In addition, sFlow standardizes export of counters from servers and applications - it is these counters that Ganglia currently supports. The following articles give examples:
http://blog.sflow.com/search/label/Ganglia Ganglia doesn't understand "flow" data (neither sFlow's packet/transaction samples nor NetFlow records). Ganglia's strength is in monitoring clusters of servers - for network traffic analysis you would be better off using tools like ntop, pmacct etc. and possibly importing traffic summaries (such as total web traffic) into Ganglia using gmetric or through a module. The Host sFlow web site is the place to look for server and application sFlow agents: http://host-sflow.sourceforge.net/ The Host sFlow agent exports core server metrics and related projects (listed on the Host sFlow web site) instrument Apache, Java etc. http://blog.sflow.com/2012/01/host-sflow-distributed-agent.html -Peter On Wed, Jul 25, 2012 at 9:09 AM, Douglas Wagner <dougla...@gmail.com> wrote: > Excuse the idiocy behind this post as we're just starting to look into a lot > of this. > > I understand Ganglia is now capable of following sFlow packets being sent > around a network, it's also my understanding that there is a difference > between "sFlow" and "NetFlow" (netflow being potentially a Cisco thing?). > > So, a couple, hopefuly easy, questions. > > Is there a significant difference, from a Ganglia perspective, between > NetFlow and sFlow packets? > > Does Ganglia support NetFlow as well as sFlow (they could be technically the > same or different as night and day for all I know). > > On the Ganglia web page it's talking about sFlow packets being accepted from > sources such as Apache and JMX, is there any documentation anyone out there > can point me at to allowing apps such as these (these two specifically) to > report statistics via sFlow? > > Thanks in advance for any help you might be able to give. > > --Douglas Wagner > > ------------------------------------------------------------------------------ > 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
