On Sat, Jan 09, 2010 at 01:50:42PM +0100, Stefan Ott wrote: > > I'm not sure whether this has been reported yet but since I couldn't > find a report, I assume it hasn't.
it has been reported [1] and a fix is available and committed in trunk in r2121 [2] and should hopefully be part of 3.1.6 when released. > I'm using ganglia 3.1.2 and I have the following issue: if I set > mcast_if in my udp_send_channel section, the packets *do* use the > right interface, but the wrong source address (they use the address > from the other interface). If I manually add a route to 239.2.11.72 > (my multicast group) it works. this is also poorly documented (there is an obsolete note in the README under the "How should I configure multihomed machines" section) but if you are using Linux one way to workaround the issue is to add a static route to the multicast IP or network through the interface you configured in mcast_if, if you are using Solaris [3] then you need to apply a patch to your ganglia or wait for 3.1.6 to use either the bind or bind_hostname parameters for udp_send_channel or rely on the fixed mcast_if parameter which is still not backported, if you are using something else and still having the issue then would be a good idea if you try either workaround/solutions and report back so we can then modify the fix further to accommodate also for your case (more changes will be still needed for sure to document correctly this issue as well in any case), 3.0 is suspected not to be affected but if anyone can confirm/deny that then we could also apply this fix for 3.0.8 and close BUG94 [4] if still open. Carlo [1] http://bugzilla.ganglia.info/cgi-bin/bugzilla/show_bug.cgi?id=140 [2] http://ganglia.svn.sourceforge.net/viewvc/ganglia?view=rev&revision=2121 [3] http://www.mail-archive.com/[email protected]/msg05230.html [4] http://bugzilla.ganglia.info/cgi-bin/bugzilla/show_bug.cgi?id=94 ------------------------------------------------------------------------------ This SF.Net email is sponsored by the Verizon Developer Community Take advantage of Verizon's best-in-class app development support A streamlined, 14 day to market process makes app distribution fast and easy Join now and get one step closer to millions of Verizon customers http://p.sf.net/sfu/verizon-dev2dev _______________________________________________ Ganglia-general mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ganglia-general
