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
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