The problem turned out to be that udp_recv_channel was binding to the multicast 
address. So, it wouldn't pick up data from direct-connect hosts.

Thanks!
David

On Dec 4, 2012, at 10:02, David Barr <daf...@dafydd.com> wrote:

> Good Morning!
> 
> I'm not sure quite how to describe this, so ask me if I miss details.
> 
> I have gmond and gmetad 3.2.0 and ganglia-web 3.1.7. I'm monitoring several 
> clusters of hosts running gmond 3.1.7 or 3.2.0.
> 
> The hosts running 3.1.7 appear in the web page. Some hosts running 3.2.0 
> appear in the web page. Others do not. (Due to silly dependency writing with 
> other packages, I can't upgrade the 3.1.7 hosts.)
> 
> Further investigation of /var/lib/ganglia/rrds/ shows now directories 
> created, much less populated with hosts/data.
> 
> I'm looking at the distinctions between the /etc/ganglia/gmond.conf files for 
> those that 3.2.0 hosts that appear in the web page and those that do not. 
> However, so far, I've hit dead ends. The big one that jumped out was that the 
> successful 3.2.0 hosts had this:
> 
> udp_send_channel {
>   host = ...
>   port = ...
> }
> 
> where the faililng hosts also had "bind_hostname = yes" and "ttl = 1." 
> However, removing those settings from udp_send_channel doesn't change 
> behavior.
> 
> While I continue looking, am I missing something obvious?
> 
> Thanks!
> David
> 
> --
> 
> David - Offbeat               http://dafydd.livejournal.com
> dafydd - Online               http://pgp.mit.edu/
> Battalion 4 - Black Rock City Emergency Services Department
>       Integrity*Commitment*Communication*Support
> 
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> 
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> were going?"
> "No," replies Dr. Heisenberg, "but I know where I am."
> 
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