Thats what I am waiting for too. I had some problem compiling the latest
snapshot of ganglia-2.6.0 on Matt's website.

Couple of solutions were suggested in this thread, but none worked for me.
https://sourceforge.net/mailarchive/forum.php?thread_id=4578097&forum_id=7186

Thanks for your attention.
Regards,
Vineet.


Quoting "Adesanya, Adeyemi" <[EMAIL PROTECTED]>:

> 
> Hi Vineet.
> 
> I'm not a big fan of multicasts either. Right now I generate ganglia metrics
> on around 150 nodes. Gmetric is also used to produce a large number of custom
> metrics in addition to gmond's built in metrics. Multicast packets are sent
> to every single host machine on a router/subnet. Multicast channels allow you
> to label the packets but it doesn't result in any kind of network filtering.
> The solution is UDP unicasts and I am eagerly waiting Ganglia 2.6.0 which
> implements this feature which for me is essential if I am to stand a chance
> of convincing our systems people that Ganglia will scale. Please Matt, roll
> out the unicast feature.
> 
> ----
> Yemi 
> 
> > -----Original Message-----
> > From: [EMAIL PROTECTED] 
> > [mailto:[EMAIL PROTECTED] On 
> > Behalf Of Vineet Mokashi
> > Sent: Tuesday, September 07, 2004 2:39 PM
> > To: [email protected]
> > Subject: [Ganglia-general] Multicast issue: High bandwidth usage
> > 
> > This issue has been addressed earlier, but no fool-proof 
> > solution was suggested.
> > Now that I have been monitoring our 32-node Beowulf, running 
> > RHEL-AS with 2.4.20-20.9smp kernel, the problem has started 
> > to look grave. 
> > 
> > Upto 60% of the packets on each node can be attributed to 
> > gmond and the inter-process communication is getting affected 
> > due to this. Turning on 'deaf'
> > mode does not help, since gmetad is unable connect to 8649 to 
> > get any data from the gmond daemons.
> > 
> > As a probably workaround, I (painfully) configured gmond with 
> > a separate multicast channel for each node, say 
> > 239.2.11.40-72, and removed all trusted_host entries (but for 
> > the login node, which runs gmetad). 
> > 
> > This solves a part of the problem - every node's gmond 
> > communicating with every other node to probe data. The 
> > bandwidth consumption has decreased significantly. The broken 
> > link with this set-up is that gmetad is unable to query data 
> > from any node except the one running on the default 
> > multi-cast channel. All the gmond daemons use the default XML 
> > port : 8649.
> > 
> > Has anyone tried something like this before? How can we get 
> > gmetad to query multiple multicast channels? On top of all 
> > this, the latest snapshot of ganglia-2.6.0 fails to build.
> > 
> > Regards,
> > Vineet
> > (Newbie Linux Administrator)
> > 
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> 




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