I have a cluster I am moitoring with Ganglia 3.0. Recently I upgraded
all the hosts in the cluster to RH4. When I add the two latest
computers into ganglia the entire group drops out. I noticed a kernel
version difference between the computers.
working nodes with RH4: Linux NODE1 2.6.9-22.ELsmp #1 SMP Mon Sep 19
18:32:14 EDT 2005 i686 i686 i386 GNU/Linux
non working hosts with RH4: Linux cela166032 2.6.9-22.0.2.ELsmp #1 SMP
Thu Jan 5 17:13:01 EST 2006 i686 i686 i386 GNU/Linux
Here are the notes from the RHN Errata:
- a flaw in network IGMP processing that a allowed a remote user on
the
local network to cause a denial of service (disabling of multicast
reports)
if the system is running multicast applications (CVE-2002-2185,
moderate)
https://rhn.redhat.com/rhn/errata/details/Details.do?eid=3648
anyone else experiencing this issue? Any ideas on a workaround other
than downgrading
my kernel?
thanks,
Jones
