I was thinking it might be /proc/net/dev . I did not see any anomalies with this area on nodes which were not reporting network data.
The network report problem happens on nodes which as far as I know are identical. Installed software should be the same. (I could generate a list of RPMs if needed.) Some of the non-reporting nodes are RHEL5 and some RHEL6, some are VMs and some are physical. There does not seem to be any specific pattern. (Also network_report seems to be the only report for which this happens.) -----Original Message----- From: Sergio Ballestrero [mailto:sergio.ballestr...@gmail.com] Sent: Tuesday, August 07, 2012 2:41 PM To: Pronko, Eric Cc: ganglia-general@lists.sourceforge.net Subject: Re: [Ganglia-general] empty network_report Eric, (for v3.2) look at libmetrics/linux/metrics.c . It uses /proc/net/dev . Anything in common on the non-reporting nodes? HW? OS version? Cheers, Sergio On 7 Aug 2012, at 16:54, Pronko, Eric wrote: > I asked back in July and did not see any replies, but figured it wouldn't > hurt to ask again. > > Our environment has mostly a mix of RHEL 5 and RHEL 6. We are using > ganglia-gmond-3.3.6 in unicast mode. With exactly the same gmond.conf file, > some nodes simply do not report network traffic. If I set debug to 10, I can > see that bytes_in and bytes_out are always 0 for some nodes, but there are no > problems on other nodes. > > Does anyone know where exactly gmond gets its information about bytes_in and > bytes_out? Maybe something is different on the nodes' filesystems or > something such that gmond cannot obtain its network information. > > Would really appreciate any help/pointers. > > Eric ------------------------------------------------------------------------------ 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
