The multicast traffic load has never really caused us a problem at all...the "real" traffic on our nets is relatively light. I've run into a few little glitches here and there where I thought maybe all the multicast traffic was causing a problem, but it's always turned out to be a bad switch port or an incorrectly configured node or whatever. I can see how it might cause a little stress if you were really pushing your network, though.
I'm anxious for the unicast more from a simplicity sake. I think the way Ganglia uses multicast is pretty slick, and I can see how a lot of people could really benefit from it...but in my specific case, it doesn't really buy me anything...just adds another level of complexity...and I've got enough of that already ;-) Steve Gilbert Unix Systems Administrator [EMAIL PROTECTED] -----Original Message----- From: Adeyemi Adesanya [mailto:[EMAIL PROTECTED] Sent: Wednesday, November 03, 2004 6:40 AM To: Steve Gilbert Cc: Bernard Li; Foster, Scott ((MS)); <[email protected]>; [EMAIL PROTECTED]; Sean Dilda Subject: Re: [Ganglia-general] Multiple clusters single gmetad Steve, Our systems guys can't wait for the Ganglia unicasts either. Every time I add more nodes I cringe. Can we please see a Ganglia 2.6.x? If I recall, the target date was sometime in September. -------- Yemi On Nov 2, 2004, at 1:22 PM, Steve Gilbert wrote: > I've never seen this error before, but it sounds like maybe you have a > /var/lock/subsys/gmond lock file lying around which is preventing the > init script from starting gmond. If so, just delete that file and try > again. I run gmond on my gmetad host...never a problem. > > After a while, you'll learn to manipulate multicast ports and channels > so that you can subdivide and merge clusters however you like. Once I > got a better understanding of how it uses multicast, I was able to do > all sorts of neat things with it. Still can't wait for the unicast > version, though :-) > > > Steve Gilbert > Unix Systems Administrator > [EMAIL PROTECTED] > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Foster, Scott (MS) > Sent: Tuesday, November 02, 2004 12:32 PM > To: Bernard Li; Sean Dilda > Cc: [email protected] > Subject: RE: [Ganglia-general] Multiple clusters single gmetad > > Thank you all for your help. It is working now, but of course I'm > trying to make one more tweak to get it exactly as we want it. So I'm > not sure if the following can be done. > > I am trying to get the headnode and other servers to show up in the > server group, but since the headnode is running gmetad when I try to > launch gmond I get a error message: gmond dead subsys locked. > > I'm not sure what that means. Basically the server group doesn't show > up in ganglia like all the other groups. > > Scott > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of > Bernard > Li > Sent: Tuesday, November 02, 2004 11:28 AM > To: Foster, Scott (MS); Sean Dilda > Cc: [email protected] > Subject: RE: [Ganglia-general] Multiple clusters single gmetad > > > Hi: > > You would only need to list them ALL for redundancy - if you only list > one node in the data_source, then if that node dies for whatever reason > then gmetad will not be able to collect data from that subcluster. So > I > guess having at least 2 nodes is good for a large subcluster. > > I don't think anybody in their right mind would list all 1000 nodes in > data_source ;-) > > Good luck. > > Cheers, > > Bernard > >> -----Original Message----- >> From: Foster, Scott (MS) [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, November 02, 2004 10:49 >> To: Bernard Li; Sean Dilda >> Cc: [email protected] >> Subject: RE: [Ganglia-general] Multiple clusters single gmetad >> >> Ah that makes sense. >> >> But if I'm running gmond on each node in the subcluster do I >> need to specify each of them as datasources? I'm not sure >> that makes sense especially if I have 1000 nodes each running >> gmond. I know I'm missing something here and I appreciate >> all your continued help. >> >> Scott >> >> -----Original Message----- >> From: Bernard Li [mailto:[EMAIL PROTECTED] >> Sent: Tuesday, November 02, 2004 10:09 AM >> To: Foster, Scott (MS); Sean Dilda >> Cc: [email protected] >> Subject: RE: [Ganglia-general] Multiple clusters single gmetad >> >> >> Hi Scott: >> >> The different ip addresses showing in gmetad.conf is not the >> ip address of the server running gmetad but instead one of >> the node (the headnode of that subgroup, if you may), which >> runs gmond. >> >> Check the syntax of the data_source tag, the ip/hostname >> listed there refers to one or all the nodes in that >> subgroup/datasource. >> >> Cheers, >> >> Bernard >> >>> -----Original Message----- >>> From: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] On Behalf Of >>> Foster, Scott (MS) >>> Sent: Tuesday, November 02, 2004 9:14 >>> To: Sean Dilda >>> Cc: [email protected] >>> Subject: RE: [Ganglia-general] Multiple clusters single gmetad >>> >>> How does that work with the gmetad having 3 different IP >> addresses? >>> My goal was to have one server running gmetad, rrd, and >> apache. Do I >>> have to have gmetad running on another system to break my >> cluster into >>> sub-clusters? >>> >>> Thanks for the earlier reply. I appreciate it. >>> >>> Scott >>> >>> -----Original Message----- >>> From: Sean Dilda [mailto:[EMAIL PROTECTED] >>> Sent: Monday, November 01, 2004 5:14 PM >>> To: Foster, Scott (MS) >>> Cc: [email protected] >>> Subject: Re: [Ganglia-general] Multiple clusters single gmetad >>> >>> >>> On Mon, 2004-11-01 at 17:47, Foster, Scott (MS) wrote: >>>> I've successfully setup ganglia (thanks to everyone on this >>> list), but now I want to try and break out our cluster into smaller >>> sub clusters. >>>> 1) Production Nodes >>>> 2) Remote Nodes >>>> 3) Test Nodes >>>> >>>> I'm trying to do all this with one server running gmetad >>> for all the nodes in the cluster regardless of their >> different status. >>> Is this even possible? >>>> >>>> I've been playing with different multicast addresses and >>> xml addresses and haven't had much success. Has anyone ever tried >>> this before? >>> >>> Yes, this is possible, I'm currently running ganglia like this. I >>> have a different gmond.conf for each subcluster. >>> The only thing that changes between the gmond.conf's is the >> "name" and >>> "mcast_channel", all other settings are the same. >>> As for the gmetad.conf, here's the crucial part of it: >>> >>> data_source "Head Cluster" 300 10.10.1.19 data_source "Storage" 300 >>> 10.10.1.1 data_source "Monitor" 300 localhost >>> >>> >>> >>> >>> ------------------------------------------------------- >>> This SF.Net email is sponsored by: >>> Sybase ASE Linux Express Edition - download now for FREE LinuxWorld >>> Reader's Choice Award Winner for best database on Linux. >>> http://ads.osdn.com/?ad_idU88&alloc_id065&op=ick >>> _______________________________________________ >>> Ganglia-general mailing list >>> [email protected] >>> https://lists.sourceforge.net/lists/listinfo/ganglia-general >>> >>> >> >> > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Sybase ASE Linux Express Edition - download now for FREE > LinuxWorld Reader's Choice Award Winner for best database on Linux. > http://ads.osdn.com/?ad_idU88&alloc_id065&op=ick > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Sybase ASE Linux Express Edition - download now for FREE > LinuxWorld Reader's Choice Award Winner for best database on Linux. > http://ads.osdn.com/?ad_idU88&alloc_id065&op=ick > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Sybase ASE Linux Express Edition - download now for FREE > LinuxWorld Reader's Choice Award Winner for best database on Linux. > http://ads.osdn.com/?ad_idU88&alloc_id065&op=click > _______________________________________________ > Ganglia-general mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ganglia-general
