Thanks Pete,

Should have mentioned that I've already checked this (got burned by once
in the past)...all our nodes, switches, etc. are all using IGMP v2, so I
don't think this is the issue.


Steve Gilbert
Unix Systems Administrator
[EMAIL PROTECTED]

-----Original Message-----
From: Peter Schmid [mailto:[EMAIL PROTECTED] 
Sent: Thursday, September 09, 2004 10:20 AM
To: Steve Gilbert
Cc: [email protected]
Subject: Re: [Ganglia-general] Any gmond issues on Opteron?

Steve,

There are some older posts from me and a few others who ran into this.  
It's not the opteron per se.. but if you are running a OS that uses IGMP
v3... there is a bug in RHEL 3 that will not fail over to IGMP v2.

Have your network people sniff the traffic to see if Ganglia is using
IGMP v3.. and either they can enable it..or in my case.. I have a IGMP
v2 node that is mute.. .and I use it to gather the infro and feed to
gmetad for the IGMP v3 nodes.

HTH,

Pete.

On Thu, 9 Sep 2004, Steve Gilbert wrote:

> Are there any known bugs or other issues with running gmond on AMD 
> Opteron based systems?
> 
> I just built gmond 2.5.6 from source on a small Opteron cluster...no 
> errors or warnings or anything during the complile/install process.
> Gmond seems to be running fine, but none of my nodes can see each
other.
> gstat --all on each machine just shows itself...the others aren't even

> showing up in the Dead list.
> 
> Even though my network team can't find anything wrong, I suspect that 
> I might be having another issue with multicast...but thought I should 
> see if there are any Opteron issues.
> 
> Thanks.
> 
> Steve Gilbert
> Unix Systems Administrator
> [EMAIL PROTECTED]
> 
> 
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--
Peter Schmid
Technical Director
Logic Technology Inc.
GE Global Research Center
ITMS Engineering Systems Group
(518) 387-6903


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