Yohann,
Yohann DESQUERRE (DSI NOISIEL) wrote:
I made the changes you advise me => it seems to work well now!!!
But I'm newbie in network and I don't understand why
It is not a network issue, but a ganglia/gmetad communication issue.
I only know "how" to get things working. People like
Matt know "why". My belief is:
gmond communicates with everyone on the same port. and
gmetad gets data from specific nodes.
So, what I had you do was have each node communicate
with only itself, and gmetad get data from each node.
Each node would then show up as a seperate cluster,
or by itself which was your original request.
I am still not sure why you wanted this, but I am
glad you are happy.
regards,
Joe Griffin
Is each node of the same (imagine I want to add e node to a cluster) need to
have same m_cast port ???
What is the duty oh the name give in /etc/gmetad.conf (ex : datasource "My
production nodes" 10.0.0.1), the name of the data source seems to be never used by
ganglia web-frontend ???
Thanks a lot for your precious help
-----Message d'origine-----
De : Joe Griffin [mailto:[EMAIL PROTECTED]
Envoyé : jeudi 19 juin 2003 16:19
À : Yohann DESQUERRE (DSI NOISIEL)
Objet : Re: RE : [Ganglia-general] Ganglia implementation problem
no.
The headnode that you are displaying from needs
gmond, gmeta, and ganglia-php-rrd running.
The other two nodes only need gmond running.
If it is still not working, did you restart all the daemons?
You should have a different mcast_port number on each
node (I use 8649, 8650, and 8651).
For example, I have a set of Itanium-2's using 8650:
quad2:~# grep mcast /etc/gmond.conf
mcast_if eth0
mcast_port 8650
"gstat" only shows Itanium-2's that use 8650.
This behavior is key. "gstat" must only show a single node.
gmetad uses the same information.
Then, from my head node, if I "telnet quad2 8649 > /tmp/junk"
The only nodes shown are from that cluster. For you, you should only
see a single node.
If each node has a different mcast_port, then gstat should only
show the each node from itself.
Is that happening?
Can you send the /etc/gmond.conf from each node, plus
the output from gstat?
Did you stop/start gmond after changing /etc/gmond.conf?
It is NOT dynamic.
Regards,
Joe
Yohann DESQUERRE (DSI NOISIEL) wrote:
Is gmetad have to be install on several nodes???
-----Message d'origine-----
De : Joe Griffin [mailto:[EMAIL PROTECTED]
Envoyé : mercredi 18 juin 2003 18:48
À : Yohann DESQUERRE (DSI NOISIEL)
Cc : [email protected]
Objet : Re: [Ganglia-general] Ganglia implementation problem
Yohann,
I have done this by setting a different mcast_port for
each node in /etc/gmond.conf. Then set
/etc/gmetad.conf to get data from each node.
(I left the port at 8649 in gmetad though.)
gmetad-webfrontend will then recognize each
node as a unique cluster.
perhaps someone else has a better solution.
Regards,
Joe Griffin
Yohann DESQUERRE (DSI NOISIEL) wrote:
Hi all,
I'm testing the implementation of ganglia but I've problem :
I've got 3 nodes on test, I Would like to have only one node in each
cluster:
I'dlike to have representation as this :
Mygrid>Cluster Production nodes>My_production_nodes
Mygrid>Cluster Qualification nodes>My_qualification_nodes
Mygrid>Ganglia Server Node>my_ganglia_server
But my 3 nodes all appear in each cluster
Gmond is running on each nodes, gmetad just and gmetad-webfrontend on
just one node
Is anyone may help me !!!!
Thanks
-----------------------------------------------
Yohann Desquerre
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